Merge branches 'clks' and 'pnx' into devel

146 files changed, 1466 insertions, 1156 deletions

diff --git a/Makefile b/Makefile
index 5f333bf870f4..67d6cff6e4d4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 33
-EXTRAVERSION = -rc4
+EXTRAVERSION = -rc5
 NAME = Man-Eating Seals of Antiquity
 
 # *DOCUMENTATION*
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e932da033499..e4a765438ee3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -574,6 +574,7 @@ config ARCH_PNX4008
         bool "Philips Nexperia PNX4008 Mobile"
         select CPU_ARM926T
         select HAVE_CLK
+        select COMMON_CLKDEV
         help
           This enables support for Philips PNX4008 mobile platform.
 
diff --git a/arch/arm/common/clkdev.c b/arch/arm/common/clkdev.c
index aae5bc01acc8..446b696196e3 100644
--- a/arch/arm/common/clkdev.c
+++ b/arch/arm/common/clkdev.c
@@ -99,6 +99,16 @@ void clkdev_add(struct clk_lookup *cl)
 }
 EXPORT_SYMBOL(clkdev_add);
 
+void __init clkdev_add_table(struct clk_lookup *cl, size_t num)
+{
+        mutex_lock(&clocks_mutex);
+        while (num--) {
+                list_add_tail(&cl->node, &clocks);
+                cl++;
+        }
+        mutex_unlock(&clocks_mutex);
+}
+
 #define MAX_DEV_ID      20
 #define MAX_CON_ID      16
 
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index be8b4d79cf41..8148a009273a 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -154,16 +154,16 @@
  *      Please note that the implementation of these, and the required
  *      effects are cache-type (VIVT/VIPT/PIPT) specific.
  *
- *      flush_cache_kern_all()
+ *      flush_kern_all()
  *
  *              Unconditionally clean and invalidate the entire cache.
  *
- *      flush_cache_user_mm(mm)
+ *      flush_user_all()
  *
  *              Clean and invalidate all user space cache entries
  *              before a change of page tables.
  *
- *      flush_cache_user_range(start, end, flags)
+ *      flush_user_range(start, end, flags)
  *
  *              Clean and invalidate a range of cache entries in the
  *              specified address space before a change of page tables.
@@ -179,6 +179,20 @@
  *              - start  - virtual start address
  *              - end    - virtual end address
  *
+ *      coherent_user_range(start, end)
+ *
+ *              Ensure coherency between the Icache and the Dcache in the
+ *              region described by start, end.  If you have non-snooping
+ *              Harvard caches, you need to implement this function.
+ *              - start  - virtual start address
+ *              - end    - virtual end address
+ *
+ *      flush_kern_dcache_area(kaddr, size)
+ *
+ *              Ensure that the data held in page is written back.
+ *              - kaddr  - page address
+ *              - size   - region size
+ *
  *      DMA Cache Coherency
  *      ===================
  *
diff --git a/arch/arm/include/asm/clkdev.h b/arch/arm/include/asm/clkdev.h
index b6ec7c627b39..7a0690da5e63 100644
--- a/arch/arm/include/asm/clkdev.h
+++ b/arch/arm/include/asm/clkdev.h
@@ -27,4 +27,7 @@ struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,
 void clkdev_add(struct clk_lookup *cl);
 void clkdev_drop(struct clk_lookup *cl);
 
+void clkdev_add_table(struct clk_lookup *, size_t);
+int clk_add_alias(const char *, const char *, char *, struct device *);
+
 #endif
diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c
index e590bbe0a7b4..72e405df0fb0 100644
--- a/arch/arm/mach-bcmring/core.c
+++ b/arch/arm/mach-bcmring/core.c
@@ -142,8 +142,7 @@ void __init bcmring_amba_init(void)
 
         chipcHw_busInterfaceClockEnable(bus_clock);
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
                 struct amba_device *d = amba_devs[i];
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 49fa9f8fef4a..5f80092b6ace 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -447,7 +447,6 @@ static void __init ep93xx_dma_clock_init(void)
 static int __init ep93xx_clock_init(void)
 {
         u32 value;
-        int i;
 
         /* Determine the bootloader configured pll1 rate */
         value = __raw_readl(EP93XX_SYSCON_CLKSET1);
@@ -480,8 +479,7 @@ static int __init ep93xx_clock_init(void)
                 clk_f.rate / 1000000, clk_h.rate / 1000000,
                 clk_p.rate / 1000000);
 
-        for (i = 0; i < ARRAY_SIZE(clocks); i++)
-                clkdev_add(&clocks[i]);
+        clkdev_add_table(clocks, ARRAY_SIZE(clocks));
         return 0;
 }
 arch_initcall(ep93xx_clock_init);
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index a0f60e55da6a..8b390e36ba69 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -144,8 +144,7 @@ static int __init integrator_init(void)
 {
         int i;
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
                 struct amba_device *d = amba_devs[i];
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 3f35293d457a..66ef86d6d9e3 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -558,9 +558,7 @@ static void __init intcp_init(void)
 {
         int i;
 
-        for (i = 0; i < ARRAY_SIZE(cp_lookups); i++)
-                clkdev_add(&cp_lookups[i]);
-
+        clkdev_add_table(cp_lookups, ARRAY_SIZE(cp_lookups));
         platform_add_devices(intcp_devs, ARRAY_SIZE(intcp_devs));
 
         for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
diff --git a/arch/arm/mach-mmp/clock.c b/arch/arm/mach-mmp/clock.c
index 2a46ed5cc2a2..886e05648f08 100644
--- a/arch/arm/mach-mmp/clock.c
+++ b/arch/arm/mach-mmp/clock.c
@@ -88,11 +88,3 @@ unsigned long clk_get_rate(struct clk *clk)
         return rate;
 }
 EXPORT_SYMBOL(clk_get_rate);
-
-void clks_register(struct clk_lookup *clks, size_t num)
-{
-        int i;
-
-        for (i = 0; i < num; i++)
-                clkdev_add(&clks[i]);
-}
diff --git a/arch/arm/mach-mmp/clock.h b/arch/arm/mach-mmp/clock.h
index eefffbe683b0..016ae94691c0 100644
--- a/arch/arm/mach-mmp/clock.h
+++ b/arch/arm/mach-mmp/clock.h
@@ -68,5 +68,3 @@ struct clk clk_##_name = {					\
 
 extern struct clk clk_pxa168_gpio;
 extern struct clk clk_pxa168_timers;
-
-extern void clks_register(struct clk_lookup *, size_t);
diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
index 37dbdde17fac..1873c821df90 100644
--- a/arch/arm/mach-mmp/pxa168.c
+++ b/arch/arm/mach-mmp/pxa168.c
@@ -94,7 +94,7 @@ static int __init pxa168_init(void)
                 mfp_init_base(MFPR_VIRT_BASE);
                 mfp_init_addr(pxa168_mfp_addr_map);
                 pxa_init_dma(IRQ_PXA168_DMA_INT0, 32);
-                clks_register(ARRAY_AND_SIZE(pxa168_clkregs));
+                clkdev_add_table(ARRAY_AND_SIZE(pxa168_clkregs));
         }
 
         return 0;
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
index d4049508a4df..46f2d69bef3c 100644
--- a/arch/arm/mach-mmp/pxa910.c
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -131,7 +131,7 @@ static int __init pxa910_init(void)
                 mfp_init_base(MFPR_VIRT_BASE);
                 mfp_init_addr(pxa910_mfp_addr_map);
                 pxa_init_dma(IRQ_PXA910_DMA_INT0, 32);
-                clks_register(ARRAY_AND_SIZE(pxa910_clkregs));
+                clkdev_add_table(ARRAY_AND_SIZE(pxa910_clkregs));
         }
 
         return 0;
diff --git a/arch/arm/mach-mx1/clock.c b/arch/arm/mach-mx1/clock.c
index d1b588519ad2..6cf2d4a7511d 100644
--- a/arch/arm/mach-mx1/clock.c
+++ b/arch/arm/mach-mx1/clock.c
@@ -570,7 +570,6 @@ static struct clk_lookup lookups[] __initdata = {
 int __init mx1_clocks_init(unsigned long fref)
 {
         unsigned int reg;
-        int i;
 
         /* disable clocks we are able to */
         __raw_writel(0, SCM_GCCR);
@@ -592,8 +591,7 @@ int __init mx1_clocks_init(unsigned long fref)
         reg = (reg & CCM_CSCR_CLKO_MASK) >> CCM_CSCR_CLKO_OFFSET;
         clko_clk.parent = (struct clk *)clko_clocks[reg];
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         clk_enable(&hclk);
         clk_enable(&fclk);
diff --git a/arch/arm/mach-mx2/clock_imx21.c b/arch/arm/mach-mx2/clock_imx21.c
index 91901b5d56c2..e82b489d1215 100644
--- a/arch/arm/mach-mx2/clock_imx21.c
+++ b/arch/arm/mach-mx2/clock_imx21.c
@@ -968,7 +968,6 @@ static struct clk_lookup lookups[] = {
  */
 int __init mx21_clocks_init(unsigned long lref, unsigned long href)
 {
-        int i;
         u32 cscr;
 
         external_low_reference = lref;
@@ -986,8 +985,7 @@ int __init mx21_clocks_init(unsigned long lref, unsigned long href)
         else
                 spll_clk.parent = &fpm_clk;
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         /* Turn off all clock gates */
         __raw_writel(0, CCM_PCCR0);
diff --git a/arch/arm/mach-mx2/clock_imx27.c b/arch/arm/mach-mx2/clock_imx27.c
index b010bf9ceaab..18c53a6487fa 100644
--- a/arch/arm/mach-mx2/clock_imx27.c
+++ b/arch/arm/mach-mx2/clock_imx27.c
@@ -719,7 +719,6 @@ static void __init to2_adjust_clocks(void)
 int __init mx27_clocks_init(unsigned long fref)
 {
         u32 cscr = __raw_readl(CCM_CSCR);
-        int i;
 
         external_high_reference = fref;
 
@@ -736,8 +735,7 @@ int __init mx27_clocks_init(unsigned long fref)
 
         to2_adjust_clocks();
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         /* Turn off all clocks we do not need */
         __raw_writel(0, CCM_PCCR0);
diff --git a/arch/arm/mach-mx25/clock.c b/arch/arm/mach-mx25/clock.c
index 6e838b857712..66916f104812 100644
--- a/arch/arm/mach-mx25/clock.c
+++ b/arch/arm/mach-mx25/clock.c
@@ -210,11 +210,7 @@ static struct clk_lookup lookups[] = {
 
 int __init mx25_clocks_init(unsigned long fref)
 {
-        int i;
-
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
-
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
         mxc_timer_init(&gpt_clk, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
 
         return 0;
diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c
index 7584b4c6c556..f3f41fa4f21b 100644
--- a/arch/arm/mach-mx3/clock-imx35.c
+++ b/arch/arm/mach-mx3/clock-imx35.c
@@ -485,15 +485,13 @@ static struct clk_lookup lookups[] = {
 
 int __init mx35_clocks_init()
 {
-        int i;
         unsigned int ll = 0;
 
 #if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC)
         ll = (3 << 16);
 #endif
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         /* Turn off all clocks except the ones we need to survive, namely:
          * EMI, GPIO1/2/3, GPT, IOMUX, MAX and eventually uart
diff --git a/arch/arm/mach-mx3/clock.c b/arch/arm/mach-mx3/clock.c
index 27a318af0d20..b5c39a016db7 100644
--- a/arch/arm/mach-mx3/clock.c
+++ b/arch/arm/mach-mx3/clock.c
@@ -578,12 +578,10 @@ static struct clk_lookup lookups[] = {
 int __init mx31_clocks_init(unsigned long fref)
 {
         u32 reg;
-        int i;
 
         ckih_rate = fref;
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         /* change the csi_clk parent if necessary */
         reg = __raw_readl(MXC_CCM_CCMR);
diff --git a/arch/arm/mach-mxc91231/clock.c b/arch/arm/mach-mxc91231/clock.c
index ecfa37fef8ad..5c85075d8a56 100644
--- a/arch/arm/mach-mxc91231/clock.c
+++ b/arch/arm/mach-mxc91231/clock.c
@@ -624,7 +624,6 @@ static struct clk_lookup lookups[] = {
 int __init mxc91231_clocks_init(unsigned long fref)
 {
         void __iomem *gpt_base;
-        int i;
 
         ckih_rate = fref;
 
@@ -632,8 +631,7 @@ int __init mxc91231_clocks_init(unsigned long fref)
         sdhc_clk[0].parent = clk_sdhc_parent(&sdhc_clk[0]);
         sdhc_clk[1].parent = clk_sdhc_parent(&sdhc_clk[1]);
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         gpt_base = MXC91231_IO_ADDRESS(MXC91231_GPT1_BASE_ADDR);
         mxc_timer_init(&gpt_clk, gpt_base, MXC91231_INT_GPT);
diff --git a/arch/arm/mach-pnx4008/clock.c b/arch/arm/mach-pnx4008/clock.c
index 898c0e88acbc..9d1975fa4d9f 100644
--- a/arch/arm/mach-pnx4008/clock.c
+++ b/arch/arm/mach-pnx4008/clock.c
@@ -22,8 +22,9 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 
-#include <mach/hardware.h>
+#include <asm/clkdev.h>
 
+#include <mach/hardware.h>
 #include <mach/clock.h>
 #include "clock.h"
 
@@ -56,18 +57,19 @@ static void propagate_rate(struct clk *clk)
         }
 }
 
-static inline void clk_reg_disable(struct clk *clk)
+static void clk_reg_disable(struct clk *clk)
 {
         if (clk->enable_reg)
                 __raw_writel(__raw_readl(clk->enable_reg) &
                              ~(1 << clk->enable_shift), clk->enable_reg);
 }
 
-static inline void clk_reg_enable(struct clk *clk)
+static int clk_reg_enable(struct clk *clk)
 {
         if (clk->enable_reg)
                 __raw_writel(__raw_readl(clk->enable_reg) |
                              (1 << clk->enable_shift), clk->enable_reg);
+        return 0;
 }
 
 static inline void clk_reg_disable1(struct clk *clk)
@@ -636,31 +638,34 @@ static struct clk flash_ck = {
 static struct clk i2c0_ck = {
         .name = "i2c0_ck",
         .parent = &per_ck,
-        .flags = NEEDS_INITIALIZATION,
-        .round_rate = &on_off_round_rate,
-        .set_rate = &on_off_set_rate,
+        .flags = NEEDS_INITIALIZATION | FIXED_RATE,
         .enable_shift = 0,
         .enable_reg = I2CCLKCTRL_REG,
+        .rate = 13000000,
+        .enable = clk_reg_enable,
+        .disable = clk_reg_disable,
 };
 
 static struct clk i2c1_ck = {
         .name = "i2c1_ck",
         .parent = &per_ck,
-        .flags = NEEDS_INITIALIZATION,
-        .round_rate = &on_off_round_rate,
-        .set_rate = &on_off_set_rate,
+        .flags = NEEDS_INITIALIZATION | FIXED_RATE,
         .enable_shift = 1,
         .enable_reg = I2CCLKCTRL_REG,
+        .rate = 13000000,
+        .enable = clk_reg_enable,
+        .disable = clk_reg_disable,
 };
 
 static struct clk i2c2_ck = {
         .name = "i2c2_ck",
         .parent = &per_ck,
-        .flags = NEEDS_INITIALIZATION,
-        .round_rate = &on_off_round_rate,
-        .set_rate = &on_off_set_rate,
+        .flags = NEEDS_INITIALIZATION | FIXED_RATE,
         .enable_shift = 2,
         .enable_reg = USB_OTG_CLKCTRL_REG,
+        .rate = 13000000,
+        .enable = clk_reg_enable,
+        .disable = clk_reg_disable,
 };
 
 static struct clk spi0_ck = {
@@ -738,16 +743,16 @@ static struct clk wdt_ck = {
         .name = "wdt_ck",
         .parent = &per_ck,
         .flags = NEEDS_INITIALIZATION,
-        .round_rate = &on_off_round_rate,
-        .set_rate = &on_off_set_rate,
         .enable_shift = 0,
         .enable_reg = TIMCLKCTRL_REG,
+        .enable = clk_reg_enable,
+        .disable = clk_reg_disable,
 };
 
 /* These clocks are visible outside this module
  * and can be initialized
  */
-static struct clk *onchip_clks[] = {
+static struct clk *onchip_clks[] __initdata = {
         &ck_13MHz,
         &ck_pll1,
         &ck_pll4,
@@ -777,49 +782,74 @@ static struct clk *onchip_clks[] = {
         &wdt_ck,
 };
 
-static int local_clk_enable(struct clk *clk)
-{
-        int ret = 0;
-
-        if (!(clk->flags & FIXED_RATE) && !clk->rate && clk->set_rate
-            && clk->user_rate)
-                ret = clk->set_rate(clk, clk->user_rate);
-        return ret;
-}
+static struct clk_lookup onchip_clkreg[] = {
+        { .clk = &ck_13MHz,     .con_id = "ck_13MHz"    },
+        { .clk = &ck_pll1,      .con_id = "ck_pll1"     },
+        { .clk = &ck_pll4,      .con_id = "ck_pll4"     },
+        { .clk = &ck_pll5,      .con_id = "ck_pll5"     },
+        { .clk = &ck_pll3,      .con_id = "ck_pll3"     },
+        { .clk = &vfp9_ck,      .con_id = "vfp9_ck"     },
+        { .clk = &m2hclk_ck,    .con_id = "m2hclk_ck"   },
+        { .clk = &hclk_ck,      .con_id = "hclk_ck"     },
+        { .clk = &dma_ck,       .con_id = "dma_ck"      },
+        { .clk = &flash_ck,     .con_id = "flash_ck"    },
+        { .clk = &dum_ck,       .con_id = "dum_ck"      },
+        { .clk = &keyscan_ck,   .con_id = "keyscan_ck"  },
+        { .clk = &pwm1_ck,      .con_id = "pwm1_ck"     },
+        { .clk = &pwm2_ck,      .con_id = "pwm2_ck"     },
+        { .clk = &jpeg_ck,      .con_id = "jpeg_ck"     },
+        { .clk = &ms_ck,        .con_id = "ms_ck"       },
+        { .clk = &touch_ck,     .con_id = "touch_ck"    },
+        { .clk = &i2c0_ck,      .dev_id = "pnx-i2c.0"   },
+        { .clk = &i2c1_ck,      .dev_id = "pnx-i2c.1"   },
+        { .clk = &i2c2_ck,      .dev_id = "pnx-i2c.2"   },
+        { .clk = &spi0_ck,      .con_id = "spi0_ck"     },
+        { .clk = &spi1_ck,      .con_id = "spi1_ck"     },
+        { .clk = &uart3_ck,     .con_id = "uart3_ck"    },
+        { .clk = &uart4_ck,     .con_id = "uart4_ck"    },
+        { .clk = &uart5_ck,     .con_id = "uart5_ck"    },
+        { .clk = &uart6_ck,     .con_id = "uart6_ck"    },
+        { .clk = &wdt_ck,       .dev_id = "pnx4008-watchdog" },
+};
 
 static void local_clk_disable(struct clk *clk)
 {
-        if (!(clk->flags & FIXED_RATE) && clk->rate && clk->set_rate)
-                clk->set_rate(clk, 0);
-}
+        if (WARN_ON(clk->usecount == 0))
+                return;
 
-static void local_clk_unuse(struct clk *clk)
-{
-        if (clk->usecount > 0 && !(--clk->usecount)) {
-                local_clk_disable(clk);
+        if (!(--clk->usecount)) {
+                if (clk->disable)
+                        clk->disable(clk);
+                else if (!(clk->flags & FIXED_RATE) && clk->rate && clk->set_rate)
+                        clk->set_rate(clk, 0);
                 if (clk->parent)
-                        local_clk_unuse(clk->parent);
+                        local_clk_disable(clk->parent);
         }
 }
 
-static int local_clk_use(struct clk *clk)
+static int local_clk_enable(struct clk *clk)
 {
         int ret = 0;
-        if (clk->usecount++ == 0) {
-                if (clk->parent)
-                        ret = local_clk_use(clk->parent);
 
-                if (ret != 0) {
-                        clk->usecount--;
-                        goto out;
+        if (clk->usecount == 0) {
+                if (clk->parent) {
+                        ret = local_clk_enable(clk->parent);
+                        if (ret != 0)
+                                goto out;
                 }
 
-                ret = local_clk_enable(clk);
+                if (clk->enable)
+                        ret = clk->enable(clk);
+                else if (!(clk->flags & FIXED_RATE) && !clk->rate && clk->set_rate
+                            && clk->user_rate)
+                        ret = clk->set_rate(clk, clk->user_rate);
 
                 if (ret != 0 && clk->parent) {
-                        local_clk_unuse(clk->parent);
-                        clk->usecount--;
+                        local_clk_disable(clk->parent);
+                        goto out;
                 }
+
+                clk->usecount++;
         }
 out:
         return ret;
@@ -866,35 +896,6 @@ out:
 
 EXPORT_SYMBOL(clk_set_rate);
 
-struct clk *clk_get(struct device *dev, const char *id)
-{
-        struct clk *clk = ERR_PTR(-ENOENT);
-        struct clk **clkp;
-
-        clock_lock();
-        for (clkp = onchip_clks; clkp < onchip_clks + ARRAY_SIZE(onchip_clks);
-             clkp++) {
-                if (strcmp(id, (*clkp)->name) == 0
-                    && try_module_get((*clkp)->owner)) {
-                        clk = (*clkp);
-                        break;
-                }
-        }
-        clock_unlock();
-
-        return clk;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-        clock_lock();
-        if (clk && !IS_ERR(clk))
-                module_put(clk->owner);
-        clock_unlock();
-}
-EXPORT_SYMBOL(clk_put);
-
 unsigned long clk_get_rate(struct clk *clk)
 {
         unsigned long ret;
@@ -907,10 +908,10 @@ EXPORT_SYMBOL(clk_get_rate);
 
 int clk_enable(struct clk *clk)
 {
-        int ret = 0;
+        int ret;
 
         clock_lock();
-        ret = local_clk_use(clk);
+        ret = local_clk_enable(clk);
         clock_unlock();
         return ret;
 }
@@ -920,7 +921,7 @@ EXPORT_SYMBOL(clk_enable);
 void clk_disable(struct clk *clk)
 {
         clock_lock();
-        local_clk_unuse(clk);
+        local_clk_disable(clk);
         clock_unlock();
 }
 
@@ -967,18 +968,24 @@ static int __init clk_init(void)
 
         for (clkp = onchip_clks; clkp < onchip_clks + ARRAY_SIZE(onchip_clks);
              clkp++) {
-                if (((*clkp)->flags & NEEDS_INITIALIZATION)
-                    && ((*clkp)->set_rate)) {
-                        (*clkp)->user_rate = (*clkp)->rate;
-                        local_set_rate((*clkp), (*clkp)->user_rate);
-                        if ((*clkp)->set_parent)
-                                (*clkp)->set_parent((*clkp), (*clkp)->parent);
+                struct clk *clk = *clkp;
+                if (clk->flags & NEEDS_INITIALIZATION) {
+                        if (clk->set_rate) {
+                                clk->user_rate = clk->rate;
+                                local_set_rate(clk, clk->user_rate);
+                                if (clk->set_parent)
+                                        clk->set_parent(clk, clk->parent);
+                        }
+                        if (clk->enable && clk->usecount)
+                                clk->enable(clk);
+                        if (clk->disable && !clk->usecount)
+                                clk->disable(clk);
                 }
                 pr_debug("%s: clock %s, rate %ld\n",
-                        __func__, (*clkp)->name, (*clkp)->rate);
+                        __func__, clk->name, clk->rate);
         }
 
-        local_clk_use(&ck_pll4);
+        local_clk_enable(&ck_pll4);
 
         /* if ck_13MHz is not used, disable it. */
         if (ck_13MHz.usecount == 0)
@@ -987,6 +994,8 @@ static int __init clk_init(void)
         /* Disable autoclocking */
         __raw_writeb(0xff, AUTOCLK_CTRL);
 
+        clkdev_add_table(onchip_clkreg, ARRAY_SIZE(onchip_clkreg));
+
         return 0;
 }
 
diff --git a/arch/arm/mach-pnx4008/clock.h b/arch/arm/mach-pnx4008/clock.h
index cd58f372cfd0..39720d6c0d01 100644
--- a/arch/arm/mach-pnx4008/clock.h
+++ b/arch/arm/mach-pnx4008/clock.h
@@ -14,8 +14,6 @@
 #define __ARCH_ARM_PNX4008_CLOCK_H__
 
 struct clk {
-        struct list_head node;
-        struct module *owner;
         const char *name;
         struct clk *parent;
         struct clk *propagate_next;
@@ -29,9 +27,11 @@ struct clk {
         u8 enable_shift1;
         u32 enable_reg1;
         u32 parent_switch_reg;
-         u32(*round_rate) (struct clk *, u32);
+        u32(*round_rate) (struct clk *, u32);
         int (*set_rate) (struct clk *, u32);
         int (*set_parent) (struct clk * clk, struct clk * parent);
+        int (*enable)(struct clk *);
+        void (*disable)(struct clk *);
 };
 
 /* Flags */
diff --git a/arch/arm/mach-pnx4008/i2c.c b/arch/arm/mach-pnx4008/i2c.c
index f3fea29c00d3..8103f9644e2d 100644
--- a/arch/arm/mach-pnx4008/i2c.c
+++ b/arch/arm/mach-pnx4008/i2c.c
@@ -18,120 +18,24 @@
 #include <mach/irqs.h>
 #include <mach/i2c.h>
 
-static int set_clock_run(struct platform_device *pdev)
-{
-        struct clk *clk;
-        char name[10];
-        int retval = 0;
-
-        snprintf(name, 10, "i2c%d_ck", pdev->id);
-        clk = clk_get(&pdev->dev, name);
-        if (!IS_ERR(clk)) {
-                clk_set_rate(clk, 1);
-                clk_put(clk);
-        } else
-                retval = -ENOENT;
-
-        return retval;
-}
-
-static int set_clock_stop(struct platform_device *pdev)
-{
-        struct clk *clk;
-        char name[10];
-        int retval = 0;
-
-        snprintf(name, 10, "i2c%d_ck", pdev->id);
-        clk = clk_get(&pdev->dev, name);
-        if (!IS_ERR(clk)) {
-                clk_set_rate(clk, 0);
-                clk_put(clk);
-        } else
-                retval = -ENOENT;
-
-        return retval;
-}
-
-static int i2c_pnx_suspend(struct platform_device *pdev, pm_message_t state)
-{
-        int retval = 0;
-#ifdef CONFIG_PM
-        retval = set_clock_run(pdev);
-#endif
-        return retval;
-}
-
-static int i2c_pnx_resume(struct platform_device *pdev)
-{
-        int retval = 0;
-#ifdef CONFIG_PM
-        retval = set_clock_run(pdev);
-#endif
-        return retval;
-}
-
-static u32 calculate_input_freq(struct platform_device *pdev)
-{
-        return HCLK_MHZ;
-}
-
-
-static struct i2c_pnx_algo_data pnx_algo_data0 = {
+static struct i2c_pnx_data i2c0_data = {
+        .name = I2C_CHIP_NAME "0",
         .base = PNX4008_I2C1_BASE,
         .irq = I2C_1_INT,
 };
 
-static struct i2c_pnx_algo_data pnx_algo_data1 = {
+static struct i2c_pnx_data i2c1_data = {
+        .name = I2C_CHIP_NAME "1",
         .base = PNX4008_I2C2_BASE,
         .irq = I2C_2_INT,
 };
 
-static struct i2c_pnx_algo_data pnx_algo_data2 = {
+static struct i2c_pnx_data i2c2_data = {
+        .name = "USB-I2C",
         .base = (PNX4008_USB_CONFIG_BASE + 0x300),
         .irq = USB_I2C_INT,
 };
 
-static struct i2c_adapter pnx_adapter0 = {
-        .name = I2C_CHIP_NAME "0",
-        .algo_data = &pnx_algo_data0,
-};
-static struct i2c_adapter pnx_adapter1 = {
-        .name = I2C_CHIP_NAME "1",
-        .algo_data = &pnx_algo_data1,
-};
-
-static struct i2c_adapter pnx_adapter2 = {
-        .name = "USB-I2C",
-        .algo_data = &pnx_algo_data2,
-};
-
-static struct i2c_pnx_data i2c0_data = {
-        .suspend = i2c_pnx_suspend,
-        .resume = i2c_pnx_resume,
-        .calculate_input_freq = calculate_input_freq,
-        .set_clock_run = set_clock_run,
-        .set_clock_stop = set_clock_stop,
-        .adapter = &pnx_adapter0,
-};
-
-static struct i2c_pnx_data i2c1_data = {
-        .suspend = i2c_pnx_suspend,
-        .resume = i2c_pnx_resume,
-        .calculate_input_freq = calculate_input_freq,
-        .set_clock_run = set_clock_run,
-        .set_clock_stop = set_clock_stop,
-        .adapter = &pnx_adapter1,
-};
-
-static struct i2c_pnx_data i2c2_data = {
-        .suspend = i2c_pnx_suspend,
-        .resume = i2c_pnx_resume,
-        .calculate_input_freq = calculate_input_freq,
-        .set_clock_run = set_clock_run,
-        .set_clock_stop = set_clock_stop,
-        .adapter = &pnx_adapter2,
-};
-
 static struct platform_device i2c0_device = {
         .name = "pnx-i2c",
         .id = 0,
diff --git a/arch/arm/mach-pnx4008/include/mach/clkdev.h b/arch/arm/mach-pnx4008/include/mach/clkdev.h
new file mode 100644
index 000000000000..04b37a89801c
--- /dev/null
+++ b/arch/arm/mach-pnx4008/include/mach/clkdev.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+#define __clk_get(clk) ({ 1; })
+#define __clk_put(clk) do { } while (0)
+
+#endif
diff --git a/arch/arm/mach-pnx4008/include/mach/timex.h b/arch/arm/mach-pnx4008/include/mach/timex.h
index 5ff0196c0f16..b383c7de7ab4 100644
--- a/arch/arm/mach-pnx4008/include/mach/timex.h
+++ b/arch/arm/mach-pnx4008/include/mach/timex.h
@@ -14,60 +14,6 @@
 #ifndef __PNX4008_TIMEX_H
 #define __PNX4008_TIMEX_H
 
-#include <linux/io.h>
-#include <mach/hardware.h>
-
 #define CLOCK_TICK_RATE         1000000
 
-#define TICKS2USECS(x)  (x)
-
-/* MilliSecond Timer - Chapter 21 Page 202 */
-
-#define MSTIM_INT     IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x0))
-#define MSTIM_CTRL    IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x4))
-#define MSTIM_COUNTER IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x8))
-#define MSTIM_MCTRL   IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x14))
-#define MSTIM_MATCH0  IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x18))
-#define MSTIM_MATCH1  IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x1c))
-
-/* High Speed Timer - Chpater 22, Page 205 */
-
-#define HSTIM_INT     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x0))
-#define HSTIM_CTRL    IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x4))
-#define HSTIM_COUNTER IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x8))
-#define HSTIM_PMATCH  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0xC))
-#define HSTIM_PCOUNT  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x10))
-#define HSTIM_MCTRL   IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x14))
-#define HSTIM_MATCH0  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x18))
-#define HSTIM_MATCH1  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x1c))
-#define HSTIM_MATCH2  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x20))
-#define HSTIM_CCR     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x28))
-#define HSTIM_CR0     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x2C))
-#define HSTIM_CR1     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x30))
-
-/* IMPORTANT: both timers are UPCOUNTING */
-
-/* xSTIM_MCTRL bit definitions */
-#define MR0_INT        1
-#define RESET_COUNT0   (1<<1)
-#define STOP_COUNT0    (1<<2)
-#define MR1_INT        (1<<3)
-#define RESET_COUNT1   (1<<4)
-#define STOP_COUNT1    (1<<5)
-#define MR2_INT        (1<<6)
-#define RESET_COUNT2   (1<<7)
-#define STOP_COUNT2    (1<<8)
-
-/* xSTIM_CTRL bit definitions */
-#define COUNT_ENAB     1
-#define RESET_COUNT    (1<<1)
-#define DEBUG_EN       (1<<2)
-
-/* xSTIM_INT bit definitions */
-#define MATCH0_INT     1
-#define MATCH1_INT     (1<<1)
-#define MATCH2_INT     (1<<2)
-#define RTC_TICK0      (1<<4)
-#define RTC_TICK1      (1<<5)
-
 #endif
diff --git a/arch/arm/mach-pnx4008/pm.c b/arch/arm/mach-pnx4008/pm.c
index b3d8d53e32ef..1f0585329be4 100644
--- a/arch/arm/mach-pnx4008/pm.c
+++ b/arch/arm/mach-pnx4008/pm.c
@@ -21,6 +21,8 @@
 #include <linux/io.h>
 
 #include <asm/cacheflush.h>
+
+#include <mach/hardware.h>
 #include <mach/pm.h>
 #include <mach/clock.h>
 
diff --git a/arch/arm/mach-pnx4008/time.c b/arch/arm/mach-pnx4008/time.c
index fc0ba183fe12..0c8aad4bb0dc 100644
--- a/arch/arm/mach-pnx4008/time.c
+++ b/arch/arm/mach-pnx4008/time.c
@@ -30,6 +30,8 @@
 #include <asm/mach/time.h>
 #include <asm/errno.h>
 
+#include "time.h"
+
 /*! Note: all timers are UPCOUNTING */
 
 /*!
diff --git a/arch/arm/mach-pnx4008/time.h b/arch/arm/mach-pnx4008/time.h
new file mode 100644
index 000000000000..75e88c570aa7
--- /dev/null
+++ b/arch/arm/mach-pnx4008/time.h
@@ -0,0 +1,70 @@
+/*
+ * arch/arm/mach-pnx4008/include/mach/timex.h
+ *
+ * PNX4008 timers header file
+ *
+ * Author: Dmitry Chigirev <source@mvista.com>
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#ifndef PNX_TIME_H
+#define PNX_TIME_H
+
+#include <linux/io.h>
+#include <mach/hardware.h>
+
+#define TICKS2USECS(x)  (x)
+
+/* MilliSecond Timer - Chapter 21 Page 202 */
+
+#define MSTIM_INT     IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x0))
+#define MSTIM_CTRL    IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x4))
+#define MSTIM_COUNTER IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x8))
+#define MSTIM_MCTRL   IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x14))
+#define MSTIM_MATCH0  IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x18))
+#define MSTIM_MATCH1  IO_ADDRESS((PNX4008_MSTIMER_BASE + 0x1c))
+
+/* High Speed Timer - Chpater 22, Page 205 */
+
+#define HSTIM_INT     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x0))
+#define HSTIM_CTRL    IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x4))
+#define HSTIM_COUNTER IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x8))
+#define HSTIM_PMATCH  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0xC))
+#define HSTIM_PCOUNT  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x10))
+#define HSTIM_MCTRL   IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x14))
+#define HSTIM_MATCH0  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x18))
+#define HSTIM_MATCH1  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x1c))
+#define HSTIM_MATCH2  IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x20))
+#define HSTIM_CCR     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x28))
+#define HSTIM_CR0     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x2C))
+#define HSTIM_CR1     IO_ADDRESS((PNX4008_HSTIMER_BASE + 0x30))
+
+/* IMPORTANT: both timers are UPCOUNTING */
+
+/* xSTIM_MCTRL bit definitions */
+#define MR0_INT        1
+#define RESET_COUNT0   (1<<1)
+#define STOP_COUNT0    (1<<2)
+#define MR1_INT        (1<<3)
+#define RESET_COUNT1   (1<<4)
+#define STOP_COUNT1    (1<<5)
+#define MR2_INT        (1<<6)
+#define RESET_COUNT2   (1<<7)
+#define STOP_COUNT2    (1<<8)
+
+/* xSTIM_CTRL bit definitions */
+#define COUNT_ENAB     1
+#define RESET_COUNT    (1<<1)
+#define DEBUG_EN       (1<<2)
+
+/* xSTIM_INT bit definitions */
+#define MATCH0_INT     1
+#define MATCH1_INT     (1<<1)
+#define MATCH2_INT     (1<<2)
+#define RTC_TICK0      (1<<4)
+#define RTC_TICK1      (1<<5)
+
+#endif
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
index 49ae38292310..abba0089a2ae 100644
--- a/arch/arm/mach-pxa/clock.c
+++ b/arch/arm/mach-pxa/clock.c
@@ -78,11 +78,3 @@ const struct clkops clk_cken_ops = {
         .enable         = clk_cken_enable,
         .disable        = clk_cken_disable,
 };
-
-void clks_register(struct clk_lookup *clks, size_t num)
-{
-        int i;
-
-        for (i = 0; i < num; i++)
-                clkdev_add(&clks[i]);
-}
diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h
index 978a3667e90d..d8488742b807 100644
--- a/arch/arm/mach-pxa/clock.h
+++ b/arch/arm/mach-pxa/clock.h
@@ -67,7 +67,3 @@ extern void clk_pxa3xx_cken_enable(struct clk *);
 extern void clk_pxa3xx_cken_disable(struct clk *);
 #endif
 
-void clks_register(struct clk_lookup *clks, size_t num);
-int clk_add_alias(const char *alias, const char *alias_name, char *id,
-        struct device *dev);
-
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index 91417f035069..96ed13081639 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -128,6 +128,6 @@ static struct clk_lookup eseries_clkregs[] = {
 
 void eseries_register_clks(void)
 {
-        clks_register(eseries_clkregs, ARRAY_SIZE(eseries_clkregs));
+        clkdev_add_table(eseries_clkregs, ARRAY_SIZE(eseries_clkregs));
 }
 
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 2c1b0b70d01d..0b9ad30bfd51 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -349,7 +349,7 @@ static int __init pxa25x_init(void)
 
                 reset_status = RCSR;
 
-                clks_register(pxa25x_clkregs, ARRAY_SIZE(pxa25x_clkregs));
+                clkdev_add_table(pxa25x_clkregs, ARRAY_SIZE(pxa25x_clkregs));
 
                 if ((ret = pxa_init_dma(IRQ_DMA, 16)))
                         return ret;
@@ -370,7 +370,7 @@ static int __init pxa25x_init(void)
 
         /* Only add HWUART for PXA255/26x; PXA210/250 do not have it. */
         if (cpu_is_pxa255())
-                clks_register(&pxa25x_hwuart_clkreg, 1);
+                clkdev_add(&pxa25x_hwuart_clkreg);
 
         return ret;
 }
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 6a0b73167e03..d783123e2d48 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -392,7 +392,7 @@ static int __init pxa27x_init(void)
 
                 reset_status = RCSR;
 
-                clks_register(pxa27x_clkregs, ARRAY_SIZE(pxa27x_clkregs));
+                clkdev_add_table(pxa27x_clkregs, ARRAY_SIZE(pxa27x_clkregs));
 
                 if ((ret = pxa_init_dma(IRQ_DMA, 32)))
                         return ret;
diff --git a/arch/arm/mach-pxa/pxa300.c b/arch/arm/mach-pxa/pxa300.c
index f4af6e2bef89..40bb16501d86 100644
--- a/arch/arm/mach-pxa/pxa300.c
+++ b/arch/arm/mach-pxa/pxa300.c
@@ -102,12 +102,12 @@ static int __init pxa300_init(void)
         if (cpu_is_pxa300() || cpu_is_pxa310()) {
                 mfp_init_base(io_p2v(MFPR_BASE));
                 mfp_init_addr(pxa300_mfp_addr_map);
-                clks_register(ARRAY_AND_SIZE(common_clkregs));
+                clkdev_add_table(ARRAY_AND_SIZE(common_clkregs));
         }
 
         if (cpu_is_pxa310()) {
                 mfp_init_addr(pxa310_mfp_addr_map);
-                clks_register(ARRAY_AND_SIZE(pxa310_clkregs));
+                clkdev_add_table(ARRAY_AND_SIZE(pxa310_clkregs));
         }
 
         return 0;
diff --git a/arch/arm/mach-pxa/pxa320.c b/arch/arm/mach-pxa/pxa320.c
index c7373e74a109..8d614ecd8e99 100644
--- a/arch/arm/mach-pxa/pxa320.c
+++ b/arch/arm/mach-pxa/pxa320.c
@@ -90,7 +90,7 @@ static int __init pxa320_init(void)
         if (cpu_is_pxa320()) {
                 mfp_init_base(io_p2v(MFPR_BASE));
                 mfp_init_addr(pxa320_mfp_addr_map);
-                clks_register(ARRAY_AND_SIZE(pxa320_clkregs));
+                clkdev_add_table(ARRAY_AND_SIZE(pxa320_clkregs));
         }
 
         return 0;
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index fcb0721f4669..4d7c03e72504 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -634,7 +634,7 @@ static int __init pxa3xx_init(void)
                  */
                 ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S);
 
-                clks_register(pxa3xx_clkregs, ARRAY_SIZE(pxa3xx_clkregs));
+                clkdev_add_table(pxa3xx_clkregs, ARRAY_SIZE(pxa3xx_clkregs));
 
                 if ((ret = pxa_init_dma(IRQ_DMA, 32)))
                         return ret;
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 9f293438e020..90bd4ef71b2c 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -346,10 +346,7 @@ static struct clk_lookup lookups[] = {
 
 static int __init clk_init(void)
 {
-        int i;
-
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
         return 0;
 }
 arch_initcall(clk_init);
diff --git a/arch/arm/mach-u300/clock.c b/arch/arm/mach-u300/clock.c
index 36ffd6a8b34c..5af71d5ba665 100644
--- a/arch/arm/mach-u300/clock.c
+++ b/arch/arm/mach-u300/clock.c
@@ -1276,11 +1276,8 @@ static struct clk_lookup lookups[] = {
 
 static void __init clk_register(void)
 {
-        int i;
-
         /* Register the lookups */
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 }
 
 /*
diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c
index 20b6ebb6783a..8359a73d0041 100644
--- a/arch/arm/mach-ux500/clock.c
+++ b/arch/arm/mach-ux500/clock.c
@@ -85,11 +85,8 @@ static struct clk_lookup lookups[] = {
 
 static int __init clk_init(void)
 {
-        int i;
-
         /* register the clock lookups */
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
         return 0;
 }
 arch_initcall(clk_init);
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index e13be7c444ca..9ddb49b1cb71 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -851,8 +851,7 @@ void __init versatile_init(void)
 {
         int i;
 
-        for (i = 0; i < ARRAY_SIZE(lookups); i++)
-                clkdev_add(&lookups[i]);
+        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
         platform_device_register(&versatile_flash_device);
         platform_device_register(&versatile_i2c_device);
diff --git a/arch/arm/mach-w90x900/clock.c b/arch/arm/mach-w90x900/clock.c
index b785994bab0a..2c371ff22e51 100644
--- a/arch/arm/mach-w90x900/clock.c
+++ b/arch/arm/mach-w90x900/clock.c
@@ -90,12 +90,3 @@ void nuc900_subclk_enable(struct clk *clk, int enable)
 
         __raw_writel(clken, W90X900_VA_CLKPWR + SUBCLK);
 }
-
-
-void clks_register(struct clk_lookup *clks, size_t num)
-{
-        int i;
-
-        for (i = 0; i < num; i++)
-                clkdev_add(&clks[i]);
-}
diff --git a/arch/arm/mach-w90x900/clock.h b/arch/arm/mach-w90x900/clock.h
index f5816a06eed6..c56ddab3d912 100644
--- a/arch/arm/mach-w90x900/clock.h
+++ b/arch/arm/mach-w90x900/clock.h
@@ -14,7 +14,6 @@
 
 void nuc900_clk_enable(struct clk *clk, int enable);
 void nuc900_subclk_enable(struct clk *clk, int enable);
-void clks_register(struct clk_lookup *clks, size_t num);
 
 struct clk {
         unsigned long           cken;
diff --git a/arch/arm/mach-w90x900/cpu.c b/arch/arm/mach-w90x900/cpu.c
index e44b0a0ecf4c..642207e18198 100644
--- a/arch/arm/mach-w90x900/cpu.c
+++ b/arch/arm/mach-w90x900/cpu.c
@@ -219,6 +219,6 @@ void __init nuc900_map_io(struct map_desc *mach_desc, int mach_size)
 
 void __init nuc900_init_clocks(void)
 {
-        clks_register(nuc900_clkregs, ARRAY_SIZE(nuc900_clkregs));
+        clkdev_add_table(nuc900_clkregs, ARRAY_SIZE(nuc900_clkregs));
 }
 
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 88f5d71248d9..9d4da6ac28eb 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1068,4 +1068,6 @@ void setup_mm_for_reboot(char mode)
                 pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
                 flush_pmd_entry(pmd);
         }
+
+        local_flush_tlb_all();
 }
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 395cc90c6613..7a5337ed7d68 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -59,8 +59,6 @@ ENTRY(cpu_v6_proc_fin)
  *      to what would be the reset vector.
  *
  *      - loc   - location to jump to for soft reset
- *
- *      It is assumed that:
  */
         .align  5
 ENTRY(cpu_v6_reset)
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 3a285218fd15..7aaf88a3b7aa 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -45,7 +45,14 @@ ENTRY(cpu_v7_proc_init)
 ENDPROC(cpu_v7_proc_init)
 
 ENTRY(cpu_v7_proc_fin)
-        mov     pc, lr
+        stmfd   sp!, {lr}
+        cpsid   if                              @ disable interrupts
+        bl      v7_flush_kern_cache_all
+        mrc     p15, 0, r0, c1, c0, 0           @ ctrl register
+        bic     r0, r0, #0x1000                 @ ...i............
+        bic     r0, r0, #0x0006                 @ .............ca.
+        mcr     p15, 0, r0, c1, c0, 0           @ disable caches
+        ldmfd   sp!, {pc}
 ENDPROC(cpu_v7_proc_fin)
 
 /*
@@ -56,8 +63,6 @@ ENDPROC(cpu_v7_proc_fin)
  *      to what would be the reset vector.
  *
  *      - loc   - location to jump to for soft reset
- *
- *      It is assumed that:
  */
         .align  5
 ENTRY(cpu_v7_reset)
diff --git a/arch/arm/plat-stmp3xxx/clock.c b/arch/arm/plat-stmp3xxx/clock.c
index 5d2f19a09e44..e593a2a801c6 100644
--- a/arch/arm/plat-stmp3xxx/clock.c
+++ b/arch/arm/plat-stmp3xxx/clock.c
@@ -1126,9 +1126,8 @@ static int __init clk_init(void)
                         if (ops && ops->set_parent)
                                 ops->set_parent(cl->clk, cl->clk->parent);
                 }
-
-                clkdev_add(cl);
         }
+        clkdev_add_table(onchip_clks, ARRAY_SIZE(onchip_clks));
         return 0;
 }
 
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 5d0f70b46c97..858ecb25d469 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -533,7 +533,7 @@ static int __init sh_eth_is_eeprom_ready(void)
         while (t--) {
                 if (!ctrl_inw(EEPROM_STAT))
                         return 1;
-                cpu_relax();
+                udelay(1);
         }
 
         printk(KERN_ERR "ms7724se can not access to eeprom\n");
diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h
index f18c4f9baf27..365744b05269 100644
--- a/arch/sh/include/asm/unistd_32.h
+++ b/arch/sh/include/asm/unistd_32.h
@@ -345,12 +345,13 @@
 #define __NR_pwritev            334
 #define __NR_rt_tgsigqueueinfo  335
 #define __NR_perf_event_open    336
-#define __NR_recvmmsg           337
 
-#define NR_syscalls 338
+#define NR_syscalls 337
 
 #ifdef __KERNEL__
 
+#define __IGNORE_recvmmsg
+
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/asm/unistd_64.h
index 3e7645d11130..25de158aac3a 100644
--- a/arch/sh/include/asm/unistd_64.h
+++ b/arch/sh/include/asm/unistd_64.h
@@ -386,10 +386,11 @@
 #define __NR_rt_tgsigqueueinfo  363
 #define __NR_perf_event_open    364
 #define __NR_recvmmsg           365
+#define __NR_accept4            366
 
 #ifdef __KERNEL__
 
-#define NR_syscalls 366
+#define NR_syscalls 367
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index 4bd5a1146956..19fd11dd9871 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -353,4 +353,3 @@ ENTRY(sys_call_table)
         .long sys_pwritev
         .long sys_rt_tgsigqueueinfo     /* 335 */
         .long sys_perf_event_open
-        .long sys_recvmmsg
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index 07d2aaea9ae8..2048a20d7c80 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -392,3 +392,4 @@ sys_call_table:
         .long sys_rt_tgsigqueueinfo
         .long sys_perf_event_open
         .long sys_recvmmsg              /* 365 */
+        .long sys_accept4
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 8d9f8548a870..1380367dabd9 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -19,6 +19,7 @@
 #define MSR_ARCH_PERFMON_EVENTSEL1                           0x187
 
 #define ARCH_PERFMON_EVENTSEL0_ENABLE                     (1 << 22)
+#define ARCH_PERFMON_EVENTSEL_ANY                         (1 << 21)
 #define ARCH_PERFMON_EVENTSEL_INT                         (1 << 20)
 #define ARCH_PERFMON_EVENTSEL_OS                          (1 << 17)
 #define ARCH_PERFMON_EVENTSEL_USR                         (1 << 16)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index fb1035cd9a6a..036d28adf59d 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1529,16 +1529,10 @@ static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
  *      if acpi_blacklisted() acpi_disabled = 1;
  *      acpi_irq_model=...
  *      ...
- *
- * return value: (currently ignored)
- *      0: success
- *      !0: failure
  */
 
-int __init acpi_boot_table_init(void)
+void __init acpi_boot_table_init(void)
 {
-        int error;
-
         dmi_check_system(acpi_dmi_table);
 
         /*
@@ -1546,15 +1540,14 @@ int __init acpi_boot_table_init(void)
          * One exception: acpi=ht continues far enough to enumerate LAPICs
          */
         if (acpi_disabled && !acpi_ht)
-                return 1;
+                return; 
 
         /*
          * Initialize the ACPI boot-time table parser.
          */
-        error = acpi_table_init();
-        if (error) {
+        if (acpi_table_init()) {
                 disable_acpi();
-                return error;
+                return;
         }
 
         acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf);
@@ -1562,18 +1555,15 @@ int __init acpi_boot_table_init(void)
         /*
          * blacklist may disable ACPI entirely
          */
-        error = acpi_blacklisted();
-        if (error) {
+        if (acpi_blacklisted()) {
                 if (acpi_force) {
                         printk(KERN_WARNING PREFIX "acpi=force override\n");
                 } else {
                         printk(KERN_WARNING PREFIX "Disabling ACPI support\n");
                         disable_acpi();
-                        return error;
+                        return;
                 }
         }
-
-        return 0;
 }
 
 int __init early_acpi_boot_init(void)
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index d616c06e99b4..8c1c07073ccc 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1343,6 +1343,13 @@ intel_pmu_enable_fixed(struct hw_perf_event *hwc, int __idx)
                 bits |= 0x2;
         if (hwc->config & ARCH_PERFMON_EVENTSEL_OS)
                 bits |= 0x1;
+
+        /*
+         * ANY bit is supported in v3 and up
+         */
+        if (x86_pmu.version > 2 && hwc->config & ARCH_PERFMON_EVENTSEL_ANY)
+                bits |= 0x4;
+
         bits <<= (idx * 4);
         mask = 0xfULL << (idx * 4);
 
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index c0f6198565eb..536fb6823366 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -538,14 +538,15 @@ static int
 kmmio_die_notifier(struct notifier_block *nb, unsigned long val, void *args)
 {
         struct die_args *arg = args;
+        unsigned long* dr6_p = (unsigned long *)ERR_PTR(arg->err);
 
-        if (val == DIE_DEBUG && (arg->err & DR_STEP))
-                if (post_kmmio_handler(arg->err, arg->regs) == 1) {
+        if (val == DIE_DEBUG && (*dr6_p & DR_STEP))
+                if (post_kmmio_handler(*dr6_p, arg->regs) == 1) {
                         /*
                          * Reset the BS bit in dr6 (pointed by args->err) to
                          * denote completion of processing
                          */
-                        (*(unsigned long *)ERR_PTR(arg->err)) &= ~DR_STEP;
+                        *dr6_p &= ~DR_STEP;
                         return NOTIFY_STOP;
                 }
 
diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index cbdabb0dd6d7..98e6bf61b0ac 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -39,8 +39,6 @@ int put_io_context(struct io_context *ioc)
 
         if (atomic_long_dec_and_test(&ioc->refcount)) {
                 rcu_read_lock();
-                if (ioc->aic && ioc->aic->dtor)
-                        ioc->aic->dtor(ioc->aic);
                 cfq_dtor(ioc);
                 rcu_read_unlock();
 
@@ -76,8 +74,6 @@ void exit_io_context(struct task_struct *task)
         task_unlock(task);
 
         if (atomic_dec_and_test(&ioc->nr_tasks)) {
-                if (ioc->aic && ioc->aic->exit)
-                        ioc->aic->exit(ioc->aic);
                 cfq_exit(ioc);
 
         }
@@ -97,7 +93,6 @@ struct io_context *alloc_io_context(gfp_t gfp_flags, int node)
                 ret->ioprio = 0;
                 ret->last_waited = jiffies; /* doesn't matter... */
                 ret->nr_batch_requests = 0; /* because this is 0 */
-                ret->aic = NULL;
                 INIT_RADIX_TREE(&ret->radix_root, GFP_ATOMIC | __GFP_HIGH);
                 INIT_HLIST_HEAD(&ret->cic_list);
                 ret->ioc_data = NULL;
diff --git a/block/blk-settings.c b/block/blk-settings.c
index d52d4adc440b..5eeb9e0d256e 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -528,7 +528,7 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                      sector_t offset)
 {
         sector_t alignment;
-        unsigned int top, bottom;
+        unsigned int top, bottom, ret = 0;
 
         t->max_sectors = min_not_zero(t->max_sectors, b->max_sectors);
         t->max_hw_sectors = min_not_zero(t->max_hw_sectors, b->max_hw_sectors);
@@ -546,6 +546,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
         t->max_segment_size = min_not_zero(t->max_segment_size,
                                            b->max_segment_size);
 
+        t->misaligned |= b->misaligned;
+
         alignment = queue_limit_alignment_offset(b, offset);
 
         /* Bottom device has different alignment.  Check that it is
@@ -558,8 +560,10 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                 bottom = max(b->physical_block_size, b->io_min) + alignment;
 
                 /* Verify that top and bottom intervals line up */
-                if (max(top, bottom) & (min(top, bottom) - 1))
+                if (max(top, bottom) & (min(top, bottom) - 1)) {
                         t->misaligned = 1;
+                        ret = -1;
+                }
         }
 
         t->logical_block_size = max(t->logical_block_size,
@@ -578,18 +582,21 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
         if (t->physical_block_size & (t->logical_block_size - 1)) {
                 t->physical_block_size = t->logical_block_size;
                 t->misaligned = 1;
+                ret = -1;
         }
 
         /* Minimum I/O a multiple of the physical block size? */
         if (t->io_min & (t->physical_block_size - 1)) {
                 t->io_min = t->physical_block_size;
                 t->misaligned = 1;
+                ret = -1;
         }
 
         /* Optimal I/O a multiple of the physical block size? */
         if (t->io_opt & (t->physical_block_size - 1)) {
                 t->io_opt = 0;
                 t->misaligned = 1;
+                ret = -1;
         }
 
         /* Find lowest common alignment_offset */
@@ -597,8 +604,10 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                 & (max(t->physical_block_size, t->io_min) - 1);
 
         /* Verify that new alignment_offset is on a logical block boundary */
-        if (t->alignment_offset & (t->logical_block_size - 1))
+        if (t->alignment_offset & (t->logical_block_size - 1)) {
                 t->misaligned = 1;
+                ret = -1;
+        }
 
         /* Discard alignment and granularity */
         if (b->discard_granularity) {
@@ -626,11 +635,33 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                         (t->discard_granularity - 1);
         }
 
-        return t->misaligned ? -1 : 0;
+        return ret;
 }
 EXPORT_SYMBOL(blk_stack_limits);
 
 /**
+ * bdev_stack_limits - adjust queue limits for stacked drivers
+ * @t:  the stacking driver limits (top device)
+ * @bdev:  the component block_device (bottom)
+ * @start:  first data sector within component device
+ *
+ * Description:
+ *    Merges queue limits for a top device and a block_device.  Returns
+ *    0 if alignment didn't change.  Returns -1 if adding the bottom
+ *    device caused misalignment.
+ */
+int bdev_stack_limits(struct queue_limits *t, struct block_device *bdev,
+                      sector_t start)
+{
+        struct request_queue *bq = bdev_get_queue(bdev);
+
+        start += get_start_sect(bdev);
+
+        return blk_stack_limits(t, &bq->limits, start << 9);
+}
+EXPORT_SYMBOL(bdev_stack_limits);
+
+/**
  * disk_stack_limits - adjust queue limits for stacked drivers
  * @disk:  MD/DM gendisk (top)
  * @bdev:  the underlying block device (bottom)
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 918c7fd9aeb1..ee130f14d1fc 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -3077,6 +3077,12 @@ cfq_should_preempt(struct cfq_data *cfqd, struct cfq_queue *new_cfqq,
                 return true;
 
         /*
+         * Don't allow a non-RT request to preempt an ongoing RT cfqq timeslice.
+         */
+        if (cfq_class_rt(cfqq) && !cfq_class_rt(new_cfqq))
+                return false;
+
+        /*
          * if the new request is sync, but the currently running queue is
          * not, let the sync request have priority.
          */
diff --git a/block/genhd.c b/block/genhd.c
index b11a4ad7d571..d13ba76a169c 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -867,7 +867,7 @@ static ssize_t disk_discard_alignment_show(struct device *dev,
 {
         struct gendisk *disk = dev_to_disk(dev);
 
-        return sprintf(buf, "%u\n", queue_discard_alignment(disk->queue));
+        return sprintf(buf, "%d\n", queue_discard_alignment(disk->queue));
 }
 
 static DEVICE_ATTR(range, S_IRUGO, disk_range_show, NULL);
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 97991ac6f5fc..7e52295f1ecc 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -208,7 +208,7 @@ static int power_saving_thread(void *data)
                  * the mechanism only works when all CPUs have RT task running,
                  * as if one CPU hasn't RT task, RT task from other CPUs will
                  * borrow CPU time from this CPU and cause RT task use > 95%
-                 * CPU time. To make 'avoid staration' work, takes a nap here.
+                 * CPU time. To make 'avoid starvation' work, takes a nap here.
                  */
                 if (do_sleep)
                         schedule_timeout_killable(HZ * idle_pct / 100);
@@ -222,14 +222,18 @@ static struct task_struct *ps_tsks[NR_CPUS];
 static unsigned int ps_tsk_num;
 static int create_power_saving_task(void)
 {
+        int rc = -ENOMEM;
+
         ps_tsks[ps_tsk_num] = kthread_run(power_saving_thread,
                 (void *)(unsigned long)ps_tsk_num,
                 "power_saving/%d", ps_tsk_num);
-        if (ps_tsks[ps_tsk_num]) {
+        rc = IS_ERR(ps_tsks[ps_tsk_num]) ? PTR_ERR(ps_tsks[ps_tsk_num]) : 0;
+        if (!rc)
                 ps_tsk_num++;
-                return 0;
-        }
-        return -EINVAL;
+        else
+                ps_tsks[ps_tsk_num] = NULL;
+
+        return rc;
 }
 
 static void destroy_power_saving_task(void)
@@ -237,6 +241,7 @@ static void destroy_power_saving_task(void)
         if (ps_tsk_num > 0) {
                 ps_tsk_num--;
                 kthread_stop(ps_tsks[ps_tsk_num]);
+                ps_tsks[ps_tsk_num] = NULL;
         }
 }
 
@@ -253,7 +258,7 @@ static void set_power_saving_task_num(unsigned int num)
         }
 }
 
-static int acpi_pad_idle_cpus(unsigned int num_cpus)
+static void acpi_pad_idle_cpus(unsigned int num_cpus)
 {
         get_online_cpus();
 
@@ -261,7 +266,6 @@ static int acpi_pad_idle_cpus(unsigned int num_cpus)
         set_power_saving_task_num(num_cpus);
 
         put_online_cpus();
-        return 0;
 }
 
 static uint32_t acpi_pad_idle_cpus_num(void)
@@ -369,19 +373,21 @@ static void acpi_pad_remove_sysfs(struct acpi_device *device)
 static int acpi_pad_pur(acpi_handle handle, int *num_cpus)
 {
         struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
-        acpi_status status;
         union acpi_object *package;
         int rev, num, ret = -EINVAL;
 
-        status = acpi_evaluate_object(handle, "_PUR", NULL, &buffer);
-        if (ACPI_FAILURE(status))
+        if (ACPI_FAILURE(acpi_evaluate_object(handle, "_PUR", NULL, &buffer)))
+                return -EINVAL;
+
+        if (!buffer.length || !buffer.pointer)
                 return -EINVAL;
+
         package = buffer.pointer;
         if (package->type != ACPI_TYPE_PACKAGE || package->package.count != 2)
                 goto out;
         rev = package->package.elements[0].integer.value;
         num = package->package.elements[1].integer.value;
-        if (rev != 1)
+        if (rev != 1 || num < 0)
                 goto out;
         *num_cpus = num;
         ret = 0;
@@ -410,7 +416,7 @@ static void acpi_pad_ost(acpi_handle handle, int stat,
 
 static void acpi_pad_handle_notify(acpi_handle handle)
 {
-        int num_cpus, ret;
+        int num_cpus;
         uint32_t idle_cpus;
 
         mutex_lock(&isolated_cpus_lock);
@@ -418,12 +424,9 @@ static void acpi_pad_handle_notify(acpi_handle handle)
                 mutex_unlock(&isolated_cpus_lock);
                 return;
         }
-        ret = acpi_pad_idle_cpus(num_cpus);
+        acpi_pad_idle_cpus(num_cpus);
         idle_cpus = acpi_pad_idle_cpus_num();
-        if (!ret)
-                acpi_pad_ost(handle, 0, idle_cpus);
-        else
-                acpi_pad_ost(handle, 1, 0);
+        acpi_pad_ost(handle, 0, idle_cpus);
         mutex_unlock(&isolated_cpus_lock);
 }
 
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index cf761b904e4a..a52126e46307 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -490,9 +490,14 @@ static void acpi_bus_osc_support(void)
 
         capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
         capbuf[OSC_SUPPORT_TYPE] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
-#ifdef CONFIG_ACPI_PROCESSOR_AGGREGATOR
+#if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\
+                        defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
         capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PAD_SUPPORT;
 #endif
+
+#if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE)
+        capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PPC_OST_SUPPORT;
+#endif
         if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
                 return;
         if (ACPI_SUCCESS(acpi_run_osc(handle, &context)))
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index fd1801bdee66..d6471bb6852f 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -201,14 +201,13 @@ unlock:
         spin_unlock_irqrestore(&ec->curr_lock, flags);
 }
 
-static void acpi_ec_gpe_query(void *ec_cxt);
+static int acpi_ec_sync_query(struct acpi_ec *ec);
 
-static int ec_check_sci(struct acpi_ec *ec, u8 state)
+static int ec_check_sci_sync(struct acpi_ec *ec, u8 state)
 {
         if (state & ACPI_EC_FLAG_SCI) {
                 if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
-                        return acpi_os_execute(OSL_EC_BURST_HANDLER,
-                                acpi_ec_gpe_query, ec);
+                        return acpi_ec_sync_query(ec);
         }
         return 0;
 }
@@ -249,11 +248,6 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
 {
         unsigned long tmp;
         int ret = 0;
-        pr_debug(PREFIX "transaction start\n");
-        /* disable GPE during transaction if storm is detected */
-        if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
-                acpi_disable_gpe(NULL, ec->gpe);
-        }
         if (EC_FLAGS_MSI)
                 udelay(ACPI_EC_MSI_UDELAY);
         /* start transaction */
@@ -265,20 +259,9 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
                 clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);
         spin_unlock_irqrestore(&ec->curr_lock, tmp);
         ret = ec_poll(ec);
-        pr_debug(PREFIX "transaction end\n");
         spin_lock_irqsave(&ec->curr_lock, tmp);
         ec->curr = NULL;
         spin_unlock_irqrestore(&ec->curr_lock, tmp);
-        if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
-                /* check if we received SCI during transaction */
-                ec_check_sci(ec, acpi_ec_read_status(ec));
-                /* it is safe to enable GPE outside of transaction */
-                acpi_enable_gpe(NULL, ec->gpe);
-        } else if (t->irq_count > ACPI_EC_STORM_THRESHOLD) {
-                pr_info(PREFIX "GPE storm detected, "
-                        "transactions will use polling mode\n");
-                set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
-        }
         return ret;
 }
 
@@ -321,7 +304,26 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
                 status = -ETIME;
                 goto end;
         }
+        pr_debug(PREFIX "transaction start\n");
+        /* disable GPE during transaction if storm is detected */
+        if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
+                acpi_disable_gpe(NULL, ec->gpe);
+        }
+
         status = acpi_ec_transaction_unlocked(ec, t);
+
+        /* check if we received SCI during transaction */
+        ec_check_sci_sync(ec, acpi_ec_read_status(ec));
+        if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
+                msleep(1);
+                /* it is safe to enable GPE outside of transaction */
+                acpi_enable_gpe(NULL, ec->gpe);
+        } else if (t->irq_count > ACPI_EC_STORM_THRESHOLD) {
+                pr_info(PREFIX "GPE storm detected, "
+                        "transactions will use polling mode\n");
+                set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
+        }
+        pr_debug(PREFIX "transaction end\n");
 end:
         if (ec->global_lock)
                 acpi_release_global_lock(glk);
@@ -443,7 +445,7 @@ int ec_transaction(u8 command,
 
 EXPORT_SYMBOL(ec_transaction);
 
-static int acpi_ec_query(struct acpi_ec *ec, u8 * data)
+static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data)
 {
         int result;
         u8 d;
@@ -452,20 +454,16 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 * data)
                                 .wlen = 0, .rlen = 1};
         if (!ec || !data)
                 return -EINVAL;
-
         /*
          * Query the EC to find out which _Qxx method we need to evaluate.
          * Note that successful completion of the query causes the ACPI_EC_SCI
          * bit to be cleared (and thus clearing the interrupt source).
          */
-
-        result = acpi_ec_transaction(ec, &t);
+        result = acpi_ec_transaction_unlocked(ec, &t);
         if (result)
                 return result;
-
         if (!d)
                 return -ENODATA;
-
         *data = d;
         return 0;
 }
@@ -509,43 +507,79 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
 
 EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);
 
-static void acpi_ec_gpe_query(void *ec_cxt)
+static void acpi_ec_run(void *cxt)
 {
-        struct acpi_ec *ec = ec_cxt;
-        u8 value = 0;
-        struct acpi_ec_query_handler *handler, copy;
-
-        if (!ec || acpi_ec_query(ec, &value))
+        struct acpi_ec_query_handler *handler = cxt;
+        if (!handler)
                 return;
-        mutex_lock(&ec->lock);
+        pr_debug(PREFIX "start query execution\n");
+        if (handler->func)
+                handler->func(handler->data);
+        else if (handler->handle)
+                acpi_evaluate_object(handler->handle, NULL, NULL, NULL);
+        pr_debug(PREFIX "stop query execution\n");
+        kfree(handler);
+}
+
+static int acpi_ec_sync_query(struct acpi_ec *ec)
+{
+        u8 value = 0;
+        int status;
+        struct acpi_ec_query_handler *handler, *copy;
+        if ((status = acpi_ec_query_unlocked(ec, &value)))
+                return status;
         list_for_each_entry(handler, &ec->list, node) {
                 if (value == handler->query_bit) {
                         /* have custom handler for this bit */
-                        memcpy(&copy, handler, sizeof(copy));
-                        mutex_unlock(&ec->lock);
-                        if (copy.func) {
-                                copy.func(copy.data);
-                        } else if (copy.handle) {
-                                acpi_evaluate_object(copy.handle, NULL, NULL, NULL);
-                        }
-                        return;
+                        copy = kmalloc(sizeof(*handler), GFP_KERNEL);
+                        if (!copy)
+                                return -ENOMEM;
+                        memcpy(copy, handler, sizeof(*copy));
+                        pr_debug(PREFIX "push query execution (0x%2x) on queue\n", value);
+                        return acpi_os_execute((copy->func) ?
+                                OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER,
+                                acpi_ec_run, copy);
                 }
         }
+        return 0;
+}
+
+static void acpi_ec_gpe_query(void *ec_cxt)
+{
+        struct acpi_ec *ec = ec_cxt;
+        if (!ec)
+                return;
+        mutex_lock(&ec->lock);
+        acpi_ec_sync_query(ec);
         mutex_unlock(&ec->lock);
 }
 
+static void acpi_ec_gpe_query(void *ec_cxt);
+
+static int ec_check_sci(struct acpi_ec *ec, u8 state)
+{
+        if (state & ACPI_EC_FLAG_SCI) {
+                if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
+                        pr_debug(PREFIX "push gpe query to the queue\n");
+                        return acpi_os_execute(OSL_NOTIFY_HANDLER,
+                                acpi_ec_gpe_query, ec);
+                }
+        }
+        return 0;
+}
+
 static u32 acpi_ec_gpe_handler(void *data)
 {
         struct acpi_ec *ec = data;
-        u8 status;
 
         pr_debug(PREFIX "~~~> interrupt\n");
-        status = acpi_ec_read_status(ec);
 
-        advance_transaction(ec, status);
-        if (ec_transaction_done(ec) && (status & ACPI_EC_FLAG_IBF) == 0)
+        advance_transaction(ec, acpi_ec_read_status(ec));
+        if (ec_transaction_done(ec) &&
+            (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF) == 0) {
                 wake_up(&ec->wait);
-        ec_check_sci(ec, status);
+                ec_check_sci(ec, acpi_ec_read_status(ec));
+        }
         return ACPI_INTERRUPT_HANDLED;
 }
 
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 394ae89409c2..04b0f007c9b7 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -56,7 +56,7 @@ ACPI_MODULE_NAME("pci_link");
 static int acpi_pci_link_add(struct acpi_device *device);
 static int acpi_pci_link_remove(struct acpi_device *device, int type);
 
-static struct acpi_device_id link_device_ids[] = {
+static const struct acpi_device_id link_device_ids[] = {
         {"PNP0C0F", 0},
         {"", 0},
 };
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 101cce3681d1..64f55b6db73c 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -46,7 +46,7 @@ static int acpi_pci_root_add(struct acpi_device *device);
 static int acpi_pci_root_remove(struct acpi_device *device, int type);
 static int acpi_pci_root_start(struct acpi_device *device);
 
-static struct acpi_device_id root_device_ids[] = {
+static const struct acpi_device_id root_device_ids[] = {
         {"PNP0A03", 0},
         {"", 0},
 };
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 22b297916519..0f30c3c1eea4 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -65,7 +65,7 @@ static int acpi_power_remove(struct acpi_device *device, int type);
 static int acpi_power_resume(struct acpi_device *device);
 static int acpi_power_open_fs(struct inode *inode, struct file *file);
 
-static struct acpi_device_id power_device_ids[] = {
+static const struct acpi_device_id power_device_ids[] = {
         {ACPI_POWER_HID, 0},
         {"", 0},
 };
diff --git a/drivers/acpi/power_meter.c b/drivers/acpi/power_meter.c
index 2ef7030a0c28..dc4ffadf8122 100644
--- a/drivers/acpi/power_meter.c
+++ b/drivers/acpi/power_meter.c
@@ -64,7 +64,7 @@ static int can_cap_in_hardware(void)
         return force_cap_on || cap_in_hardware;
 }
 
-static struct acpi_device_id power_meter_ids[] = {
+static const struct acpi_device_id power_meter_ids[] = {
         {"ACPI000D", 0},
         {"", 0},
 };
@@ -534,6 +534,7 @@ static void remove_domain_devices(struct acpi_power_meter_resource *resource)
 
         kfree(resource->domain_devices);
         kobject_put(resource->holders_dir);
+        resource->num_domain_devices = 0;
 }
 
 static int read_domain_devices(struct acpi_power_meter_resource *resource)
@@ -740,7 +741,6 @@ skip_unsafe_cap:
 
         return res;
 error:
-        remove_domain_devices(resource);
         remove_attrs(resource);
         return res;
 }
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index d1676b1754d9..7c0441f63b39 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -305,6 +305,28 @@ static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
         pr->power.states[ACPI_STATE_C2].latency = acpi_gbl_FADT.C2latency;
         pr->power.states[ACPI_STATE_C3].latency = acpi_gbl_FADT.C3latency;
 
+        /*
+         * FADT specified C2 latency must be less than or equal to
+         * 100 microseconds.
+         */
+        if (acpi_gbl_FADT.C2latency > ACPI_PROCESSOR_MAX_C2_LATENCY) {
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                        "C2 latency too large [%d]\n", acpi_gbl_FADT.C2latency));
+                /* invalidate C2 */
+                pr->power.states[ACPI_STATE_C2].address = 0;
+        }
+
+        /*
+         * FADT supplied C3 latency must be less than or equal to
+         * 1000 microseconds.
+         */
+        if (acpi_gbl_FADT.C3latency > ACPI_PROCESSOR_MAX_C3_LATENCY) {
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                        "C3 latency too large [%d]\n", acpi_gbl_FADT.C3latency));
+                /* invalidate C3 */
+                pr->power.states[ACPI_STATE_C3].address = 0;
+        }
+
         ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                           "lvl2[0x%08x] lvl3[0x%08x]\n",
                           pr->power.states[ACPI_STATE_C2].address,
@@ -494,33 +516,6 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
         return status;
 }
 
-static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
-{
-
-        if (!cx->address)
-                return;
-
-        /*
-         * C2 latency must be less than or equal to 100
-         * microseconds.
-         */
-        else if (cx->latency > ACPI_PROCESSOR_MAX_C2_LATENCY) {
-                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-                                  "latency too large [%d]\n", cx->latency));
-                return;
-        }
-
-        /*
-         * Otherwise we've met all of our C2 requirements.
-         * Normalize the C2 latency to expidite policy
-         */
-        cx->valid = 1;
-
-        cx->latency_ticks = cx->latency;
-
-        return;
-}
-
 static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
                                            struct acpi_processor_cx *cx)
 {
@@ -532,16 +527,6 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
                 return;
 
         /*
-         * C3 latency must be less than or equal to 1000
-         * microseconds.
-         */
-        else if (cx->latency > ACPI_PROCESSOR_MAX_C3_LATENCY) {
-                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-                                  "latency too large [%d]\n", cx->latency));
-                return;
-        }
-
-        /*
          * PIIX4 Erratum #18: We don't support C3 when Type-F (fast)
          * DMA transfers are used by any ISA device to avoid livelock.
          * Note that we could disable Type-F DMA (as recommended by
@@ -629,7 +614,10 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
                         break;
 
                 case ACPI_STATE_C2:
-                        acpi_processor_power_verify_c2(cx);
+                        if (!cx->address)
+                                break;
+                        cx->valid = 1; 
+                        cx->latency_ticks = cx->latency; /* Normalize latency */
                         break;
 
                 case ACPI_STATE_C3:
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
index 30e4dc0cdf30..7247819dbd80 100644
--- a/drivers/acpi/processor_pdc.c
+++ b/drivers/acpi/processor_pdc.c
@@ -144,6 +144,29 @@ void acpi_processor_set_pdc(acpi_handle handle)
 }
 EXPORT_SYMBOL_GPL(acpi_processor_set_pdc);
 
+static int early_pdc_optin;
+static int set_early_pdc_optin(const struct dmi_system_id *id)
+{
+        early_pdc_optin = 1;
+        return 0;
+}
+
+static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = {
+        {
+        set_early_pdc_optin, "HP Envy", {
+        DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
+        DMI_MATCH(DMI_PRODUCT_NAME, "HP Envy") }, NULL},
+        {
+        set_early_pdc_optin, "HP Pavilion dv6", {
+        DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
+        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6") }, NULL},
+        {
+        set_early_pdc_optin, "HP Pavilion dv7", {
+        DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
+        DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7") }, NULL},
+        {},
+};
+
 static acpi_status
 early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
 {
@@ -151,7 +174,7 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
         return AE_OK;
 }
 
-void acpi_early_processor_set_pdc(void)
+void __init acpi_early_processor_set_pdc(void)
 {
         /*
          * Check whether the system is DMI table. If yes, OSPM
@@ -159,6 +182,13 @@ void acpi_early_processor_set_pdc(void)
          */
         dmi_check_system(processor_idle_dmi_table);
 
+        /*
+         * Allow systems to opt-in to early _PDC evaluation.
+         */
+        dmi_check_system(early_pdc_optin_table);
+        if (!early_pdc_optin)
+                return;
+
         acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
                             ACPI_UINT32_MAX,
                             early_init_pdc, NULL, NULL, NULL);
diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index 140c5c5b423c..6deafb4aa0da 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -443,8 +443,7 @@ struct thermal_cooling_device_ops processor_cooling_ops = {
 #ifdef CONFIG_ACPI_PROCFS
 static int acpi_processor_limit_seq_show(struct seq_file *seq, void *offset)
 {
-        struct acpi_processor *pr = (struct acpi_processor *)seq->private;
-
+        struct acpi_processor *pr = seq->private;
 
         if (!pr)
                 goto end;
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 52b9db8afc20..b16ddbf23a9c 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -822,7 +822,10 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
 
 static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
 {
+#if defined(CONFIG_ACPI_SYSFS_POWER) || defined(CONFIG_ACPI_PROCFS_POWER)
         struct acpi_battery *battery = &sbs->battery[id];
+#endif
+
 #ifdef CONFIG_ACPI_SYSFS_POWER
         if (battery->bat.dev) {
                 if (battery->have_sysfs_alarm)
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index d9339806df45..fd09229282ea 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -242,7 +242,7 @@ static int smbus_alarm(void *context)
                 case ACPI_SBS_CHARGER:
                 case ACPI_SBS_MANAGER:
                 case ACPI_SBS_BATTERY:
-                        acpi_os_execute(OSL_GPE_HANDLER,
+                        acpi_os_execute(OSL_NOTIFY_HANDLER,
                                         acpi_smbus_callback, hc);
                 default:;
         }
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 72e76b4b6538..b765790b32be 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -78,6 +78,13 @@ MODULE_LICENSE("GPL");
 static int brightness_switch_enabled = 1;
 module_param(brightness_switch_enabled, bool, 0644);
 
+/*
+ * By default, we don't allow duplicate ACPI video bus devices
+ * under the same VGA controller
+ */
+static int allow_duplicates;
+module_param(allow_duplicates, bool, 0644);
+
 static int register_count = 0;
 static int acpi_video_bus_add(struct acpi_device *device);
 static int acpi_video_bus_remove(struct acpi_device *device, int type);
@@ -2239,11 +2246,47 @@ static int acpi_video_resume(struct acpi_device *device)
         return AE_OK;
 }
 
+static acpi_status
+acpi_video_bus_match(acpi_handle handle, u32 level, void *context,
+                        void **return_value)
+{
+        struct acpi_device *device = context;
+        struct acpi_device *sibling;
+        int result;
+
+        if (handle == device->handle)
+                return AE_CTRL_TERMINATE;
+
+        result = acpi_bus_get_device(handle, &sibling);
+        if (result)
+                return AE_OK;
+
+        if (!strcmp(acpi_device_name(sibling), ACPI_VIDEO_BUS_NAME))
+                        return AE_ALREADY_EXISTS;
+
+        return AE_OK;
+}
+
 static int acpi_video_bus_add(struct acpi_device *device)
 {
         struct acpi_video_bus *video;
         struct input_dev *input;
         int error;
+        acpi_status status;
+
+        status = acpi_walk_namespace(ACPI_TYPE_DEVICE,
+                                device->parent->handle, 1,
+                                acpi_video_bus_match, NULL,
+                                device, NULL);
+        if (status == AE_ALREADY_EXISTS) {
+                printk(KERN_WARNING FW_BUG
+                        "Duplicate ACPI video bus devices for the"
+                        " same VGA controller, please try module "
+                        "parameter \"video.allow_duplicates=1\""
+                        "if the current driver doesn't work.\n");
+                if (!allow_duplicates)
+                        return -ENODEV;
+        }
 
         video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);
         if (!video)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 0ea97c942ced..9f6cfac0f2cc 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2028,8 +2028,9 @@ static void ata_eh_link_autopsy(struct ata_link *link)
                         qc->err_mask &= ~(AC_ERR_DEV | AC_ERR_OTHER);
 
                 /* determine whether the command is worth retrying */
-                if (!(qc->err_mask & AC_ERR_INVALID) &&
-                    ((qc->flags & ATA_QCFLAG_IO) || qc->err_mask != AC_ERR_DEV))
+                if (qc->flags & ATA_QCFLAG_IO ||
+                    (!(qc->err_mask & AC_ERR_INVALID) &&
+                     qc->err_mask != AC_ERR_DEV))
                         qc->flags |= ATA_QCFLAG_RETRY;
 
                 /* accumulate error info */
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 090dd4851301..42ae452b36b0 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -354,6 +354,7 @@ int __init devtmpfs_init(void)
 {
         int err;
         struct vfsmount *mnt;
+        char options[] = "mode=0755";
 
         err = register_filesystem(&dev_fs_type);
         if (err) {
@@ -362,7 +363,7 @@ int __init devtmpfs_init(void)
                 return err;
         }
 
-        mnt = kern_mount_data(&dev_fs_type, "mode=0755");
+        mnt = kern_mount_data(&dev_fs_type, options);
         if (IS_ERR(mnt)) {
                 err = PTR_ERR(mnt);
                 printk(KERN_ERR "devtmpfs: unable to create devtmpfs %i\n", err);
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index ae6b6c43cff9..bd025059711f 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -309,19 +309,17 @@ static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL);
  * Block size attribute stuff
  */
 static ssize_t
-print_block_size(struct sysdev_class *class,
-                 struct sysdev_class_attribute *class_attr,
-                 char *buf)
+print_block_size(struct class *class, char *buf)
 {
         return sprintf(buf, "%#lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE);
 }
 
-static SYSDEV_CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL);
+static CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL);
 
 static int block_size_init(void)
 {
         return sysfs_create_file(&memory_sysdev_class.kset.kobj,
-                                &attr_block_size_bytes.attr);
+                                &class_attr_block_size_bytes.attr);
 }
 
 /*
@@ -332,9 +330,7 @@ static int block_size_init(void)
  */
 #ifdef CONFIG_ARCH_MEMORY_PROBE
 static ssize_t
-memory_probe_store(struct sysdev_class *class,
-                   struct sysdev_class_attribute *class_attr,
-                   const char *buf, size_t count)
+memory_probe_store(struct class *class, const char *buf, size_t count)
 {
         u64 phys_addr;
         int nid;
@@ -350,12 +346,12 @@ memory_probe_store(struct sysdev_class *class,
 
         return count;
 }
-static SYSDEV_CLASS_ATTR(probe, S_IWUSR, NULL, memory_probe_store);
+static CLASS_ATTR(probe, S_IWUSR, NULL, memory_probe_store);
 
 static int memory_probe_init(void)
 {
         return sysfs_create_file(&memory_sysdev_class.kset.kobj,
-                                &attr_probe.attr);
+                                &class_attr_probe.attr);
 }
 #else
 static inline int memory_probe_init(void)
@@ -371,9 +367,7 @@ static inline int memory_probe_init(void)
 
 /* Soft offline a page */
 static ssize_t
-store_soft_offline_page(struct sysdev_class *class,
-                        struct sysdev_class_attribute *class_attr,
-                        const char *buf, size_t count)
+store_soft_offline_page(struct class *class, const char *buf, size_t count)
 {
         int ret;
         u64 pfn;
@@ -390,9 +384,7 @@ store_soft_offline_page(struct sysdev_class *class,
 
 /* Forcibly offline a page, including killing processes. */
 static ssize_t
-store_hard_offline_page(struct sysdev_class *class,
-                        struct sysdev_class_attribute *class_attr,
-                        const char *buf, size_t count)
+store_hard_offline_page(struct class *class, const char *buf, size_t count)
 {
         int ret;
         u64 pfn;
@@ -405,18 +397,18 @@ store_hard_offline_page(struct sysdev_class *class,
         return ret ? ret : count;
 }
 
-static SYSDEV_CLASS_ATTR(soft_offline_page, 0644, NULL, store_soft_offline_page);
-static SYSDEV_CLASS_ATTR(hard_offline_page, 0644, NULL, store_hard_offline_page);
+static CLASS_ATTR(soft_offline_page, 0644, NULL, store_soft_offline_page);
+static CLASS_ATTR(hard_offline_page, 0644, NULL, store_hard_offline_page);
 
 static __init int memory_fail_init(void)
 {
         int err;
 
         err = sysfs_create_file(&memory_sysdev_class.kset.kobj,
-                                &attr_soft_offline_page.attr);
+                                &class_attr_soft_offline_page.attr);
         if (!err)
                 err = sysfs_create_file(&memory_sysdev_class.kset.kobj,
-                                &attr_hard_offline_page.attr);
+                                &class_attr_hard_offline_page.attr);
         return err;
 }
 #else
diff --git a/drivers/block/drbd/Kconfig b/drivers/block/drbd/Kconfig
index f4acd04ebeef..df0983787390 100644
--- a/drivers/block/drbd/Kconfig
+++ b/drivers/block/drbd/Kconfig
@@ -3,7 +3,7 @@
 #
 
 comment "DRBD disabled because PROC_FS, INET or CONNECTOR not selected"
-        depends on !PROC_FS || !INET || !CONNECTOR
+        depends on PROC_FS='n' || INET='n' || CONNECTOR='n'
 
 config BLK_DEV_DRBD
         tristate "DRBD Distributed Replicated Block Device support"
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index c97558763430..2bf3a6ef3684 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1275,7 +1275,7 @@ struct bm_extent {
 #if DRBD_MAX_SECTORS_BM < DRBD_MAX_SECTORS_32
 #define DRBD_MAX_SECTORS      DRBD_MAX_SECTORS_BM
 #define DRBD_MAX_SECTORS_FLEX DRBD_MAX_SECTORS_BM
-#elif !defined(CONFIG_LBD) && BITS_PER_LONG == 32
+#elif !defined(CONFIG_LBDAF) && BITS_PER_LONG == 32
 #define DRBD_MAX_SECTORS      DRBD_MAX_SECTORS_32
 #define DRBD_MAX_SECTORS_FLEX DRBD_MAX_SECTORS_32
 #else
@@ -1371,10 +1371,9 @@ extern int is_valid_ar_handle(struct drbd_request *, sector_t);
 extern void drbd_suspend_io(struct drbd_conf *mdev);
 extern void drbd_resume_io(struct drbd_conf *mdev);
 extern char *ppsize(char *buf, unsigned long long size);
-extern sector_t drbd_new_dev_size(struct drbd_conf *,
-                struct drbd_backing_dev *);
+extern sector_t drbd_new_dev_size(struct drbd_conf *, struct drbd_backing_dev *, int);
 enum determine_dev_size { dev_size_error = -1, unchanged = 0, shrunk = 1, grew = 2 };
-extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *) __must_hold(local);
+extern enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *, int force) __must_hold(local);
 extern void resync_after_online_grow(struct drbd_conf *);
 extern void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int) __must_hold(local);
 extern int drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role,
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 9348f33f6242..e898ad9eb1c3 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1298,6 +1298,7 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
                                 dev_err(DEV, "Sending state in drbd_io_error() failed\n");
                 }
 
+                wait_event(mdev->misc_wait, !atomic_read(&mdev->local_cnt));
                 lc_destroy(mdev->resync);
                 mdev->resync = NULL;
                 lc_destroy(mdev->act_log);
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 4e0726aa53b0..1292e0620663 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -510,7 +510,7 @@ void drbd_resume_io(struct drbd_conf *mdev)
  * Returns 0 on success, negative return values indicate errors.
  * You should call drbd_md_sync() after calling this function.
  */
-enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev) __must_hold(local)
+enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, int force) __must_hold(local)
 {
         sector_t prev_first_sect, prev_size; /* previous meta location */
         sector_t la_size;
@@ -541,7 +541,7 @@ enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev) __must_ho
         /* TODO: should only be some assert here, not (re)init... */
         drbd_md_set_sector_offsets(mdev, mdev->ldev);
 
-        size = drbd_new_dev_size(mdev, mdev->ldev);
+        size = drbd_new_dev_size(mdev, mdev->ldev, force);
 
         if (drbd_get_capacity(mdev->this_bdev) != size ||
             drbd_bm_capacity(mdev) != size) {
@@ -596,7 +596,7 @@ out:
 }
 
 sector_t
-drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
+drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev, int assume_peer_has_space)
 {
         sector_t p_size = mdev->p_size;   /* partner's disk size. */
         sector_t la_size = bdev->md.la_size_sect; /* last agreed size. */
@@ -606,6 +606,11 @@ drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev)
 
         m_size = drbd_get_max_capacity(bdev);
 
+        if (mdev->state.conn < C_CONNECTED && assume_peer_has_space) {
+                dev_warn(DEV, "Resize while not connected was forced by the user!\n");
+                p_size = m_size;
+        }
+
         if (p_size && m_size) {
                 size = min_t(sector_t, p_size, m_size);
         } else {
@@ -965,7 +970,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 
         /* Prevent shrinking of consistent devices ! */
         if (drbd_md_test_flag(nbc, MDF_CONSISTENT) &&
-           drbd_new_dev_size(mdev, nbc) < nbc->md.la_size_sect) {
+            drbd_new_dev_size(mdev, nbc, 0) < nbc->md.la_size_sect) {
                 dev_warn(DEV, "refusing to truncate a consistent device\n");
                 retcode = ERR_DISK_TO_SMALL;
                 goto force_diskless_dec;
@@ -1052,7 +1057,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
             !drbd_md_test_flag(mdev->ldev, MDF_CONNECTED_IND))
                 set_bit(USE_DEGR_WFC_T, &mdev->flags);
 
-        dd = drbd_determin_dev_size(mdev);
+        dd = drbd_determin_dev_size(mdev, 0);
         if (dd == dev_size_error) {
                 retcode = ERR_NOMEM_BITMAP;
                 goto force_diskless_dec;
@@ -1271,7 +1276,7 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
                         goto fail;
                 }
 
-                if (crypto_tfm_alg_type(crypto_hash_tfm(tfm)) != CRYPTO_ALG_TYPE_SHASH) {
+                if (!drbd_crypto_is_hash(crypto_hash_tfm(tfm))) {
                         retcode = ERR_AUTH_ALG_ND;
                         goto fail;
                 }
@@ -1504,7 +1509,7 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
         }
 
         mdev->ldev->dc.disk_size = (sector_t)rs.resize_size;
-        dd = drbd_determin_dev_size(mdev);
+        dd = drbd_determin_dev_size(mdev, rs.resize_force);
         drbd_md_sync(mdev);
         put_ldev(mdev);
         if (dd == dev_size_error) {
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 259c1351b152..f22a5283128a 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -878,9 +878,13 @@ retry:
 
         if (mdev->cram_hmac_tfm) {
                 /* drbd_request_state(mdev, NS(conn, WFAuth)); */
-                if (!drbd_do_auth(mdev)) {
+                switch (drbd_do_auth(mdev)) {
+                case -1:
                         dev_err(DEV, "Authentication of peer failed\n");
                         return -1;
+                case 0:
+                        dev_err(DEV, "Authentication of peer failed, trying again.\n");
+                        return 0;
                 }
         }
 
@@ -1201,10 +1205,11 @@ static int receive_Barrier(struct drbd_conf *mdev, struct p_header *h)
 
         case WO_bdev_flush:
         case WO_drain_io:
-                D_ASSERT(rv == FE_STILL_LIVE);
-                set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &mdev->current_epoch->flags);
-                drbd_wait_ee_list_empty(mdev, &mdev->active_ee);
-                rv = drbd_flush_after_epoch(mdev, mdev->current_epoch);
+                if (rv == FE_STILL_LIVE) {
+                        set_bit(DE_BARRIER_IN_NEXT_EPOCH_ISSUED, &mdev->current_epoch->flags);
+                        drbd_wait_ee_list_empty(mdev, &mdev->active_ee);
+                        rv = drbd_flush_after_epoch(mdev, mdev->current_epoch);
+                }
                 if (rv == FE_RECYCLED)
                         return TRUE;
 
@@ -2865,7 +2870,7 @@ static int receive_sizes(struct drbd_conf *mdev, struct p_header *h)
 
                 /* Never shrink a device with usable data during connect.
                    But allow online shrinking if we are connected. */
-                if (drbd_new_dev_size(mdev, mdev->ldev) <
+                if (drbd_new_dev_size(mdev, mdev->ldev, 0) <
                    drbd_get_capacity(mdev->this_bdev) &&
                    mdev->state.disk >= D_OUTDATED &&
                    mdev->state.conn < C_CONNECTED) {
@@ -2880,7 +2885,7 @@ static int receive_sizes(struct drbd_conf *mdev, struct p_header *h)
 #undef min_not_zero
 
         if (get_ldev(mdev)) {
-                dd = drbd_determin_dev_size(mdev);
+          dd = drbd_determin_dev_size(mdev, 0);
                 put_ldev(mdev);
                 if (dd == dev_size_error)
                         return FALSE;
@@ -3830,10 +3835,17 @@ static int drbd_do_auth(struct drbd_conf *mdev)
 {
         dev_err(DEV, "This kernel was build without CONFIG_CRYPTO_HMAC.\n");
         dev_err(DEV, "You need to disable 'cram-hmac-alg' in drbd.conf.\n");
-        return 0;
+        return -1;
 }
 #else
 #define CHALLENGE_LEN 64
+
+/* Return value:
+        1 - auth succeeded,
+        0 - failed, try again (network error),
+        -1 - auth failed, don't try again.
+*/
+
 static int drbd_do_auth(struct drbd_conf *mdev)
 {
         char my_challenge[CHALLENGE_LEN];  /* 64 Bytes... */
@@ -3854,7 +3866,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
                                 (u8 *)mdev->net_conf->shared_secret, key_len);
         if (rv) {
                 dev_err(DEV, "crypto_hash_setkey() failed with %d\n", rv);
-                rv = 0;
+                rv = -1;
                 goto fail;
         }
 
@@ -3877,14 +3889,14 @@ static int drbd_do_auth(struct drbd_conf *mdev)
 
         if (p.length > CHALLENGE_LEN*2) {
                 dev_err(DEV, "expected AuthChallenge payload too big.\n");
-                rv = 0;
+                rv = -1;
                 goto fail;
         }
 
         peers_ch = kmalloc(p.length, GFP_NOIO);
         if (peers_ch == NULL) {
                 dev_err(DEV, "kmalloc of peers_ch failed\n");
-                rv = 0;
+                rv = -1;
                 goto fail;
         }
 
@@ -3900,7 +3912,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
         response = kmalloc(resp_size, GFP_NOIO);
         if (response == NULL) {
                 dev_err(DEV, "kmalloc of response failed\n");
-                rv = 0;
+                rv = -1;
                 goto fail;
         }
 
@@ -3910,7 +3922,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
         rv = crypto_hash_digest(&desc, &sg, sg.length, response);
         if (rv) {
                 dev_err(DEV, "crypto_hash_digest() failed with %d\n", rv);
-                rv = 0;
+                rv = -1;
                 goto fail;
         }
 
@@ -3944,9 +3956,9 @@ static int drbd_do_auth(struct drbd_conf *mdev)
         }
 
         right_response = kmalloc(resp_size, GFP_NOIO);
-        if (response == NULL) {
+        if (right_response == NULL) {
                 dev_err(DEV, "kmalloc of right_response failed\n");
-                rv = 0;
+                rv = -1;
                 goto fail;
         }
 
@@ -3955,7 +3967,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
         rv = crypto_hash_digest(&desc, &sg, sg.length, right_response);
         if (rv) {
                 dev_err(DEV, "crypto_hash_digest() failed with %d\n", rv);
-                rv = 0;
+                rv = -1;
                 goto fail;
         }
 
@@ -3964,6 +3976,8 @@ static int drbd_do_auth(struct drbd_conf *mdev)
         if (rv)
                 dev_info(DEV, "Peer authenticated using %d bytes of '%s' HMAC\n",
                      resp_size, mdev->net_conf->cram_hmac_alg);
+        else
+                rv = -1;
 
  fail:
         kfree(peers_ch);
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index 7d73cd430340..2ad7d37afbd0 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -1651,10 +1651,10 @@ static void ntty_close(struct tty_struct *tty, struct file *file)
 
         dc->open_ttys--;
         port->count--;
-        tty_port_tty_set(port, NULL);
 
         if (port->count == 0) {
                 DBG1("close: %d", nport->token_dl);
+                tty_port_tty_set(port, NULL);
                 spin_lock_irqsave(&dc->spin_mutex, flags);
                 dc->last_ier &= ~(nport->token_dl);
                 writew(dc->last_ier, dc->reg_ier);
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index f15df40bc318..c6f3b48be9dd 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1951,8 +1951,8 @@ static int tty_fasync(int fd, struct file *filp, int on)
                         pid = task_pid(current);
                         type = PIDTYPE_PID;
                 }
-                spin_unlock_irqrestore(&tty->ctrl_lock, flags);
                 retval = __f_setown(filp, pid, type, 0);
+                spin_unlock_irqrestore(&tty->ctrl_lock, flags);
                 if (retval)
                         goto out;
         } else {
diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index 5d1c2603a130..2b0bd0b042d6 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -20,15 +20,15 @@
 #include <linux/platform_device.h>
 #include <linux/i2c-pnx.h>
 #include <linux/io.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+
 #include <mach/hardware.h>
 #include <mach/i2c.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
 
 #define I2C_PNX_TIMEOUT         10 /* msec */
 #define I2C_PNX_SPEED_KHZ       100
 #define I2C_PNX_REGION_SIZE     0x100
-#define PNX_DEFAULT_FREQ        13 /* MHz */
 
 static inline int wait_timeout(long timeout, struct i2c_pnx_algo_data *data)
 {
@@ -50,22 +50,21 @@ static inline int wait_reset(long timeout, struct i2c_pnx_algo_data *data)
         return (timeout <= 0);
 }
 
-static inline void i2c_pnx_arm_timer(struct i2c_adapter *adap)
+static inline void i2c_pnx_arm_timer(struct i2c_pnx_algo_data *alg_data)
 {
-        struct i2c_pnx_algo_data *data = adap->algo_data;
-        struct timer_list *timer = &data->mif.timer;
-        int expires = I2C_PNX_TIMEOUT / (1000 / HZ);
+        struct timer_list *timer = &alg_data->mif.timer;
+        unsigned long expires = msecs_to_jiffies(I2C_PNX_TIMEOUT);
 
         if (expires <= 1)
                 expires = 2;
 
         del_timer_sync(timer);
 
-        dev_dbg(&adap->dev, "Timer armed at %lu plus %u jiffies.\n",
+        dev_dbg(&alg_data->adapter.dev, "Timer armed at %lu plus %lu jiffies.\n",
                 jiffies, expires);
 
         timer->expires = jiffies + expires;
-        timer->data = (unsigned long)adap;
+        timer->data = (unsigned long)&alg_data;
 
         add_timer(timer);
 }
@@ -77,34 +76,34 @@ static inline void i2c_pnx_arm_timer(struct i2c_adapter *adap)
  *
  * Generate a START signal in the desired mode.
  */
-static int i2c_pnx_start(unsigned char slave_addr, struct i2c_adapter *adap)
+static int i2c_pnx_start(unsigned char slave_addr,
+        struct i2c_pnx_algo_data *alg_data)
 {
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
-
-        dev_dbg(&adap->dev, "%s(): addr 0x%x mode %d\n", __func__,
+        dev_dbg(&alg_data->adapter.dev, "%s(): addr 0x%x mode %d\n", __func__,
                 slave_addr, alg_data->mif.mode);
 
         /* Check for 7 bit slave addresses only */
         if (slave_addr & ~0x7f) {
-                dev_err(&adap->dev, "%s: Invalid slave address %x. "
-                       "Only 7-bit addresses are supported\n",
-                       adap->name, slave_addr);
+                dev_err(&alg_data->adapter.dev,
+                        "%s: Invalid slave address %x. Only 7-bit addresses are supported\n",
+                        alg_data->adapter.name, slave_addr);
                 return -EINVAL;
         }
 
         /* First, make sure bus is idle */
         if (wait_timeout(I2C_PNX_TIMEOUT, alg_data)) {
                 /* Somebody else is monopolizing the bus */
-                dev_err(&adap->dev, "%s: Bus busy. Slave addr = %02x, "
-                       "cntrl = %x, stat = %x\n",
-                       adap->name, slave_addr,
-                       ioread32(I2C_REG_CTL(alg_data)),
-                       ioread32(I2C_REG_STS(alg_data)));
+                dev_err(&alg_data->adapter.dev,
+                        "%s: Bus busy. Slave addr = %02x, cntrl = %x, stat = %x\n",
+                        alg_data->adapter.name, slave_addr,
+                        ioread32(I2C_REG_CTL(alg_data)),
+                        ioread32(I2C_REG_STS(alg_data)));
                 return -EBUSY;
         } else if (ioread32(I2C_REG_STS(alg_data)) & mstatus_afi) {
                 /* Sorry, we lost the bus */
-                dev_err(&adap->dev, "%s: Arbitration failure. "
-                       "Slave addr = %02x\n", adap->name, slave_addr);
+                dev_err(&alg_data->adapter.dev,
+                        "%s: Arbitration failure. Slave addr = %02x\n",
+                        alg_data->adapter.name, slave_addr);
                 return -EIO;
         }
 
@@ -115,14 +114,14 @@ static int i2c_pnx_start(unsigned char slave_addr, struct i2c_adapter *adap)
         iowrite32(ioread32(I2C_REG_STS(alg_data)) | mstatus_tdi | mstatus_afi,
                   I2C_REG_STS(alg_data));
 
-        dev_dbg(&adap->dev, "%s(): sending %#x\n", __func__,
+        dev_dbg(&alg_data->adapter.dev, "%s(): sending %#x\n", __func__,
                 (slave_addr << 1) | start_bit | alg_data->mif.mode);
 
         /* Write the slave address, START bit and R/W bit */
         iowrite32((slave_addr << 1) | start_bit | alg_data->mif.mode,
                   I2C_REG_TX(alg_data));
 
-        dev_dbg(&adap->dev, "%s(): exit\n", __func__);
+        dev_dbg(&alg_data->adapter.dev, "%s(): exit\n", __func__);
 
         return 0;
 }
@@ -133,13 +132,12 @@ static int i2c_pnx_start(unsigned char slave_addr, struct i2c_adapter *adap)
  *
  * Generate a STOP signal to terminate the master transaction.
  */
-static void i2c_pnx_stop(struct i2c_adapter *adap)
+static void i2c_pnx_stop(struct i2c_pnx_algo_data *alg_data)
 {
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
         /* Only 1 msec max timeout due to interrupt context */
         long timeout = 1000;
 
-        dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
+        dev_dbg(&alg_data->adapter.dev, "%s(): entering: stat = %04x.\n",
                 __func__, ioread32(I2C_REG_STS(alg_data)));
 
         /* Write a STOP bit to TX FIFO */
@@ -153,7 +151,7 @@ static void i2c_pnx_stop(struct i2c_adapter *adap)
                 timeout--;
         }
 
-        dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
+        dev_dbg(&alg_data->adapter.dev, "%s(): exiting: stat = %04x.\n",
                 __func__, ioread32(I2C_REG_STS(alg_data)));
 }
 
@@ -163,12 +161,11 @@ static void i2c_pnx_stop(struct i2c_adapter *adap)
  *
  * Sends one byte of data to the slave
  */
-static int i2c_pnx_master_xmit(struct i2c_adapter *adap)
+static int i2c_pnx_master_xmit(struct i2c_pnx_algo_data *alg_data)
 {
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
         u32 val;
 
-        dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
+        dev_dbg(&alg_data->adapter.dev, "%s(): entering: stat = %04x.\n",
                 __func__, ioread32(I2C_REG_STS(alg_data)));
 
         if (alg_data->mif.len > 0) {
@@ -184,15 +181,15 @@ static int i2c_pnx_master_xmit(struct i2c_adapter *adap)
                 alg_data->mif.len--;
                 iowrite32(val, I2C_REG_TX(alg_data));
 
-                dev_dbg(&adap->dev, "%s(): xmit %#x [%d]\n", __func__,
-                        val, alg_data->mif.len + 1);
+                dev_dbg(&alg_data->adapter.dev, "%s(): xmit %#x [%d]\n",
+                        __func__, val, alg_data->mif.len + 1);
 
                 if (alg_data->mif.len == 0) {
                         if (alg_data->last) {
                                 /* Wait until the STOP is seen. */
                                 if (wait_timeout(I2C_PNX_TIMEOUT, alg_data))
-                                        dev_err(&adap->dev, "The bus is still "
-                                                "active after timeout\n");
+                                        dev_err(&alg_data->adapter.dev,
+                                                "The bus is still active after timeout\n");
                         }
                         /* Disable master interrupts */
                         iowrite32(ioread32(I2C_REG_CTL(alg_data)) &
@@ -201,14 +198,15 @@ static int i2c_pnx_master_xmit(struct i2c_adapter *adap)
 
                         del_timer_sync(&alg_data->mif.timer);
 
-                        dev_dbg(&adap->dev, "%s(): Waking up xfer routine.\n",
+                        dev_dbg(&alg_data->adapter.dev,
+                                "%s(): Waking up xfer routine.\n",
                                 __func__);
 
                         complete(&alg_data->mif.complete);
                 }
         } else if (alg_data->mif.len == 0) {
                 /* zero-sized transfer */
-                i2c_pnx_stop(adap);
+                i2c_pnx_stop(alg_data);
 
                 /* Disable master interrupts. */
                 iowrite32(ioread32(I2C_REG_CTL(alg_data)) &
@@ -217,13 +215,14 @@ static int i2c_pnx_master_xmit(struct i2c_adapter *adap)
 
                 /* Stop timer. */
                 del_timer_sync(&alg_data->mif.timer);
-                dev_dbg(&adap->dev, "%s(): Waking up xfer routine after "
-                        "zero-xfer.\n", __func__);
+                dev_dbg(&alg_data->adapter.dev,
+                        "%s(): Waking up xfer routine after zero-xfer.\n",
+                        __func__);
 
                 complete(&alg_data->mif.complete);
         }
 
-        dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
+        dev_dbg(&alg_data->adapter.dev, "%s(): exiting: stat = %04x.\n",
                 __func__, ioread32(I2C_REG_STS(alg_data)));
 
         return 0;
@@ -235,21 +234,21 @@ static int i2c_pnx_master_xmit(struct i2c_adapter *adap)
  *
  * Reads one byte data from the slave
  */
-static int i2c_pnx_master_rcv(struct i2c_adapter *adap)
+static int i2c_pnx_master_rcv(struct i2c_pnx_algo_data *alg_data)
 {
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
         unsigned int val = 0;
         u32 ctl = 0;
 
-        dev_dbg(&adap->dev, "%s(): entering: stat = %04x.\n",
+        dev_dbg(&alg_data->adapter.dev, "%s(): entering: stat = %04x.\n",
                 __func__, ioread32(I2C_REG_STS(alg_data)));
 
         /* Check, whether there is already data,
          * or we didn't 'ask' for it yet.
          */
         if (ioread32(I2C_REG_STS(alg_data)) & mstatus_rfe) {
-                dev_dbg(&adap->dev, "%s(): Write dummy data to fill "
-                        "Rx-fifo...\n", __func__);
+                dev_dbg(&alg_data->adapter.dev,
+                        "%s(): Write dummy data to fill Rx-fifo...\n",
+                        __func__);
 
                 if (alg_data->mif.len == 1) {
                         /* Last byte, do not acknowledge next rcv. */
@@ -281,16 +280,16 @@ static int i2c_pnx_master_rcv(struct i2c_adapter *adap)
         if (alg_data->mif.len > 0) {
                 val = ioread32(I2C_REG_RX(alg_data));
                 *alg_data->mif.buf++ = (u8) (val & 0xff);
-                dev_dbg(&adap->dev, "%s(): rcv 0x%x [%d]\n", __func__, val,
-                        alg_data->mif.len);
+                dev_dbg(&alg_data->adapter.dev, "%s(): rcv 0x%x [%d]\n",
+                        __func__, val, alg_data->mif.len);
 
                 alg_data->mif.len--;
                 if (alg_data->mif.len == 0) {
                         if (alg_data->last)
                                 /* Wait until the STOP is seen. */
                                 if (wait_timeout(I2C_PNX_TIMEOUT, alg_data))
-                                        dev_err(&adap->dev, "The bus is still "
-                                                "active after timeout\n");
+                                        dev_err(&alg_data->adapter.dev,
+                                                "The bus is still active after timeout\n");
 
                         /* Disable master interrupts */
                         ctl = ioread32(I2C_REG_CTL(alg_data));
@@ -304,7 +303,7 @@ static int i2c_pnx_master_rcv(struct i2c_adapter *adap)
                 }
         }
 
-        dev_dbg(&adap->dev, "%s(): exiting: stat = %04x.\n",
+        dev_dbg(&alg_data->adapter.dev, "%s(): exiting: stat = %04x.\n",
                 __func__, ioread32(I2C_REG_STS(alg_data)));
 
         return 0;
@@ -312,11 +311,11 @@ static int i2c_pnx_master_rcv(struct i2c_adapter *adap)
 
 static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
 {
+        struct i2c_pnx_algo_data *alg_data = dev_id;
         u32 stat, ctl;
-        struct i2c_adapter *adap = dev_id;
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
 
-        dev_dbg(&adap->dev, "%s(): mstat = %x mctrl = %x, mode = %d\n",
+        dev_dbg(&alg_data->adapter.dev,
+                "%s(): mstat = %x mctrl = %x, mode = %d\n",
                 __func__,
                 ioread32(I2C_REG_STS(alg_data)),
                 ioread32(I2C_REG_CTL(alg_data)),
@@ -339,10 +338,10 @@ static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
                 complete(&alg_data->mif.complete);
         } else if (stat & mstatus_nai) {
                 /* Slave did not acknowledge, generate a STOP */
-                dev_dbg(&adap->dev, "%s(): "
-                        "Slave did not acknowledge, generating a STOP.\n",
+                dev_dbg(&alg_data->adapter.dev,
+                        "%s(): Slave did not acknowledge, generating a STOP.\n",
                         __func__);
-                i2c_pnx_stop(adap);
+                i2c_pnx_stop(alg_data);
 
                 /* Disable master interrupts. */
                 ctl = ioread32(I2C_REG_CTL(alg_data));
@@ -368,9 +367,9 @@ static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
                  */
                 if ((stat & mstatus_drmi) || !(stat & mstatus_rfe)) {
                         if (alg_data->mif.mode == I2C_SMBUS_WRITE) {
-                                i2c_pnx_master_xmit(adap);
+                                i2c_pnx_master_xmit(alg_data);
                         } else if (alg_data->mif.mode == I2C_SMBUS_READ) {
-                                i2c_pnx_master_rcv(adap);
+                                i2c_pnx_master_rcv(alg_data);
                         }
                 }
         }
@@ -379,7 +378,8 @@ static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
         stat = ioread32(I2C_REG_STS(alg_data));
         iowrite32(stat | mstatus_tdi | mstatus_afi, I2C_REG_STS(alg_data));
 
-        dev_dbg(&adap->dev, "%s(): exiting, stat = %x ctrl = %x.\n",
+        dev_dbg(&alg_data->adapter.dev,
+                "%s(): exiting, stat = %x ctrl = %x.\n",
                  __func__, ioread32(I2C_REG_STS(alg_data)),
                  ioread32(I2C_REG_CTL(alg_data)));
 
@@ -388,14 +388,13 @@ static irqreturn_t i2c_pnx_interrupt(int irq, void *dev_id)
 
 static void i2c_pnx_timeout(unsigned long data)
 {
-        struct i2c_adapter *adap = (struct i2c_adapter *)data;
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
+        struct i2c_pnx_algo_data *alg_data = (struct i2c_pnx_algo_data *)data;
         u32 ctl;
 
-        dev_err(&adap->dev, "Master timed out. stat = %04x, cntrl = %04x. "
-               "Resetting master...\n",
-               ioread32(I2C_REG_STS(alg_data)),
-               ioread32(I2C_REG_CTL(alg_data)));
+        dev_err(&alg_data->adapter.dev,
+                "Master timed out. stat = %04x, cntrl = %04x. Resetting master...\n",
+                ioread32(I2C_REG_STS(alg_data)),
+                ioread32(I2C_REG_CTL(alg_data)));
 
         /* Reset master and disable interrupts */
         ctl = ioread32(I2C_REG_CTL(alg_data));
@@ -409,15 +408,14 @@ static void i2c_pnx_timeout(unsigned long data)
         complete(&alg_data->mif.complete);
 }
 
-static inline void bus_reset_if_active(struct i2c_adapter *adap)
+static inline void bus_reset_if_active(struct i2c_pnx_algo_data *alg_data)
 {
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
         u32 stat;
 
         if ((stat = ioread32(I2C_REG_STS(alg_data))) & mstatus_active) {
-                dev_err(&adap->dev,
+                dev_err(&alg_data->adapter.dev,
                         "%s: Bus is still active after xfer. Reset it...\n",
-                       adap->name);
+                        alg_data->adapter.name);
                 iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_reset,
                           I2C_REG_CTL(alg_data));
                 wait_reset(I2C_PNX_TIMEOUT, alg_data);
@@ -451,10 +449,11 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
         struct i2c_pnx_algo_data *alg_data = adap->algo_data;
         u32 stat = ioread32(I2C_REG_STS(alg_data));
 
-        dev_dbg(&adap->dev, "%s(): entering: %d messages, stat = %04x.\n",
+        dev_dbg(&alg_data->adapter.dev,
+                "%s(): entering: %d messages, stat = %04x.\n",
                 __func__, num, ioread32(I2C_REG_STS(alg_data)));
 
-        bus_reset_if_active(adap);
+        bus_reset_if_active(alg_data);
 
         /* Process transactions in a loop. */
         for (i = 0; rc >= 0 && i < num; i++) {
@@ -464,9 +463,9 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
                 addr = pmsg->addr;
 
                 if (pmsg->flags & I2C_M_TEN) {
-                        dev_err(&adap->dev,
+                        dev_err(&alg_data->adapter.dev,
                                 "%s: 10 bits addr not supported!\n",
-                                adap->name);
+                                alg_data->adapter.name);
                         rc = -EINVAL;
                         break;
                 }
@@ -478,11 +477,10 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
                 alg_data->mif.ret = 0;
                 alg_data->last = (i == num - 1);
 
-                dev_dbg(&adap->dev, "%s(): mode %d, %d bytes\n", __func__,
-                        alg_data->mif.mode,
-                        alg_data->mif.len);
+                dev_dbg(&alg_data->adapter.dev, "%s(): mode %d, %d bytes\n",
+                        __func__, alg_data->mif.mode, alg_data->mif.len);
 
-                i2c_pnx_arm_timer(adap);
+                i2c_pnx_arm_timer(alg_data);
 
                 /* initialize the completion var */
                 init_completion(&alg_data->mif.complete);
@@ -493,7 +491,7 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
                           I2C_REG_CTL(alg_data));
 
                 /* Put start-code and slave-address on the bus. */
-                rc = i2c_pnx_start(addr, adap);
+                rc = i2c_pnx_start(addr, alg_data);
                 if (rc < 0)
                         break;
 
@@ -502,31 +500,32 @@ i2c_pnx_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 
                 if (!(rc = alg_data->mif.ret))
                         completed++;
-                dev_dbg(&adap->dev, "%s(): Complete, return code = %d.\n",
+                dev_dbg(&alg_data->adapter.dev,
+                        "%s(): Complete, return code = %d.\n",
                         __func__, rc);
 
                 /* Clear TDI and AFI bits in case they are set. */
                 if ((stat = ioread32(I2C_REG_STS(alg_data))) & mstatus_tdi) {
-                        dev_dbg(&adap->dev,
+                        dev_dbg(&alg_data->adapter.dev,
                                 "%s: TDI still set... clearing now.\n",
-                               adap->name);
+                                alg_data->adapter.name);
                         iowrite32(stat, I2C_REG_STS(alg_data));
                 }
                 if ((stat = ioread32(I2C_REG_STS(alg_data))) & mstatus_afi) {
-                        dev_dbg(&adap->dev,
+                        dev_dbg(&alg_data->adapter.dev,
                                 "%s: AFI still set... clearing now.\n",
-                               adap->name);
+                                alg_data->adapter.name);
                         iowrite32(stat, I2C_REG_STS(alg_data));
                 }
         }
 
-        bus_reset_if_active(adap);
+        bus_reset_if_active(alg_data);
 
         /* Cleanup to be sure... */
         alg_data->mif.buf = NULL;
         alg_data->mif.len = 0;
 
-        dev_dbg(&adap->dev, "%s(): exiting, stat = %x\n",
+        dev_dbg(&alg_data->adapter.dev, "%s(): exiting, stat = %x\n",
                 __func__, ioread32(I2C_REG_STS(alg_data)));
 
         if (completed != num)
@@ -545,69 +544,92 @@ static struct i2c_algorithm pnx_algorithm = {
         .functionality = i2c_pnx_func,
 };
 
+#ifdef CONFIG_PM
 static int i2c_pnx_controller_suspend(struct platform_device *pdev,
                                       pm_message_t state)
 {
-        struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
-        return i2c_pnx->suspend(pdev, state);
+        struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
+
+        /* FIXME: shouldn't this be clk_disable? */
+        clk_enable(alg_data->clk);
+
+        return 0;
 }
 
 static int i2c_pnx_controller_resume(struct platform_device *pdev)
 {
-        struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
-        return i2c_pnx->resume(pdev);
+        struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
+
+        return clk_enable(alg_data->clk);
 }
+#else
+#define i2c_pnx_controller_suspend      NULL
+#define i2c_pnx_controller_resume       NULL
+#endif
 
 static int __devinit i2c_pnx_probe(struct platform_device *pdev)
 {
         unsigned long tmp;
         int ret = 0;
         struct i2c_pnx_algo_data *alg_data;
-        int freq_mhz;
+        unsigned long freq;
         struct i2c_pnx_data *i2c_pnx = pdev->dev.platform_data;
 
-        if (!i2c_pnx || !i2c_pnx->adapter) {
+        if (!i2c_pnx || !i2c_pnx->name) {
                 dev_err(&pdev->dev, "%s: no platform data supplied\n",
                        __func__);
                 ret = -EINVAL;
                 goto out;
         }
 
-        platform_set_drvdata(pdev, i2c_pnx);
-
-        if (i2c_pnx->calculate_input_freq)
-                freq_mhz = i2c_pnx->calculate_input_freq(pdev);
-        else {
-                freq_mhz = PNX_DEFAULT_FREQ;
-                dev_info(&pdev->dev, "Setting bus frequency to default value: "
-                       "%d MHz\n", freq_mhz);
+        alg_data = kzalloc(sizeof(*alg_data), GFP_KERNEL);
+        if (!alg_data) {
+                ret = -ENOMEM;
+                goto err_kzalloc;
         }
 
-        i2c_pnx->adapter->algo = &pnx_algorithm;
+        platform_set_drvdata(pdev, alg_data);
+
+        strlcpy(alg_data->adapter.name, i2c_pnx->name,
+                sizeof(alg_data->adapter.name));
+        alg_data->adapter.dev.parent = &pdev->dev;
+        alg_data->adapter.algo = &pnx_algorithm;
+        alg_data->adapter.algo_data = alg_data;
+        alg_data->adapter.nr = pdev->id;
+        alg_data->i2c_pnx = i2c_pnx;
+
+        alg_data->clk = clk_get(&pdev->dev, NULL);
+        if (IS_ERR(alg_data->clk)) {
+                ret = PTR_ERR(alg_data->clk);
+                goto out_drvdata;
+        }
 
-        alg_data = i2c_pnx->adapter->algo_data;
         init_timer(&alg_data->mif.timer);
         alg_data->mif.timer.function = i2c_pnx_timeout;
-        alg_data->mif.timer.data = (unsigned long)i2c_pnx->adapter;
+        alg_data->mif.timer.data = (unsigned long)alg_data;
 
         /* Register I/O resource */
-        if (!request_mem_region(alg_data->base, I2C_PNX_REGION_SIZE,
+        if (!request_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE,
                                 pdev->name)) {
                 dev_err(&pdev->dev,
                        "I/O region 0x%08x for I2C already in use.\n",
-                       alg_data->base);
+                       i2c_pnx->base);
                 ret = -ENODEV;
-                goto out_drvdata;
+                goto out_clkget;
         }
 
-        if (!(alg_data->ioaddr =
-                        (u32)ioremap(alg_data->base, I2C_PNX_REGION_SIZE))) {
+        alg_data->ioaddr = ioremap(i2c_pnx->base, I2C_PNX_REGION_SIZE);
+        if (!alg_data->ioaddr) {
                 dev_err(&pdev->dev, "Couldn't ioremap I2C I/O region\n");
                 ret = -ENOMEM;
                 goto out_release;
         }
 
-        i2c_pnx->set_clock_run(pdev);
+        ret = clk_enable(alg_data->clk);
+        if (ret)
+                goto out_unmap;
+
+        freq = clk_get_rate(alg_data->clk);
 
         /*
          * Clock Divisor High This value is the number of system clocks
@@ -620,45 +642,47 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
          * the deglitching filter length.
          */
 
-        tmp = ((freq_mhz * 1000) / I2C_PNX_SPEED_KHZ) / 2 - 2;
+        tmp = ((freq / 1000) / I2C_PNX_SPEED_KHZ) / 2 - 2;
         iowrite32(tmp, I2C_REG_CKH(alg_data));
         iowrite32(tmp, I2C_REG_CKL(alg_data));
 
         iowrite32(mcntrl_reset, I2C_REG_CTL(alg_data));
         if (wait_reset(I2C_PNX_TIMEOUT, alg_data)) {
                 ret = -ENODEV;
-                goto out_unmap;
+                goto out_clock;
         }
         init_completion(&alg_data->mif.complete);
 
-        ret = request_irq(alg_data->irq, i2c_pnx_interrupt,
-                        0, pdev->name, i2c_pnx->adapter);
+        ret = request_irq(i2c_pnx->irq, i2c_pnx_interrupt,
+                        0, pdev->name, alg_data);
         if (ret)
                 goto out_clock;
 
         /* Register this adapter with the I2C subsystem */
-        i2c_pnx->adapter->dev.parent = &pdev->dev;
-        i2c_pnx->adapter->nr = pdev->id;
-        ret = i2c_add_numbered_adapter(i2c_pnx->adapter);
+        ret = i2c_add_numbered_adapter(&alg_data->adapter);
         if (ret < 0) {
                 dev_err(&pdev->dev, "I2C: Failed to add bus\n");
                 goto out_irq;
         }
 
         dev_dbg(&pdev->dev, "%s: Master at %#8x, irq %d.\n",
-               i2c_pnx->adapter->name, alg_data->base, alg_data->irq);
+               alg_data->adapter.name, i2c_pnx->base, i2c_pnx->irq);
 
         return 0;
 
 out_irq:
-        free_irq(alg_data->irq, i2c_pnx->adapter);
+        free_irq(i2c_pnx->irq, alg_data);
 out_clock:
-        i2c_pnx->set_clock_stop(pdev);
+        clk_disable(alg_data->clk);
 out_unmap:
-        iounmap((void *)alg_data->ioaddr);
+        iounmap(alg_data->ioaddr);
 out_release:
-        release_mem_region(alg_data->base, I2C_PNX_REGION_SIZE);
+        release_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE);
+out_clkget:
+        clk_put(alg_data->clk);
 out_drvdata:
+        kfree(alg_data);
+err_kzalloc:
         platform_set_drvdata(pdev, NULL);
 out:
         return ret;
@@ -666,15 +690,16 @@ out:
 
 static int __devexit i2c_pnx_remove(struct platform_device *pdev)
 {
-        struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
-        struct i2c_adapter *adap = i2c_pnx->adapter;
-        struct i2c_pnx_algo_data *alg_data = adap->algo_data;
-
-        free_irq(alg_data->irq, i2c_pnx->adapter);
-        i2c_del_adapter(adap);
-        i2c_pnx->set_clock_stop(pdev);
-        iounmap((void *)alg_data->ioaddr);
-        release_mem_region(alg_data->base, I2C_PNX_REGION_SIZE);
+        struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
+        struct i2c_pnx_data *i2c_pnx = alg_data->i2c_pnx;
+
+        free_irq(i2c_pnx->irq, alg_data);
+        i2c_del_adapter(&alg_data->adapter);
+        clk_disable(alg_data->clk);
+        iounmap(alg_data->ioaddr);
+        release_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE);
+        clk_put(alg_data->clk);
+        kfree(alg_data);
         platform_set_drvdata(pdev, NULL);
 
         return 0;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index be625475cf6d..4b22feb01a0c 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -503,16 +503,15 @@ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
                 return 0;
         }
 
-        if (blk_stack_limits(limits, &q->limits, start << 9) < 0)
-                DMWARN("%s: target device %s is misaligned: "
+        if (bdev_stack_limits(limits, bdev, start) < 0)
+                DMWARN("%s: adding target device %s caused an alignment inconsistency: "
                        "physical_block_size=%u, logical_block_size=%u, "
                        "alignment_offset=%u, start=%llu",
                        dm_device_name(ti->table->md), bdevname(bdev, b),
                        q->limits.physical_block_size,
                        q->limits.logical_block_size,
                        q->limits.alignment_offset,
-                       (unsigned long long) start << 9);
-
+                       (unsigned long long) start << SECTOR_SHIFT);
 
         /*
          * Check if merge fn is supported.
@@ -1026,9 +1025,9 @@ combine_limits:
                  * for the table.
                  */
                 if (blk_stack_limits(limits, &ti_limits, 0) < 0)
-                        DMWARN("%s: target device "
+                        DMWARN("%s: adding target device "
                                "(start sect %llu len %llu) "
-                               "is misaligned",
+                               "caused an alignment inconsistency",
                                dm_device_name(table->md),
                                (unsigned long long) ti->begin,
                                (unsigned long long) ti->len);
@@ -1080,15 +1079,6 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
                                struct queue_limits *limits)
 {
         /*
-         * Each target device in the table has a data area that should normally
-         * be aligned such that the DM device's alignment_offset is 0.
-         * FIXME: Propagate alignment_offsets up the stack and warn of
-         *        sub-optimal or inconsistent settings.
-         */
-        limits->alignment_offset = 0;
-        limits->misaligned = 0;
-
-        /*
          * Copy table's limits to the DM device's request_queue
          */
         q->limits = *limits;
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index db32c25e3605..f526e735c5ab 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -364,6 +364,7 @@ config EEEPC_LAPTOP
         select HWMON
         select LEDS_CLASS
         select NEW_LEDS
+        select INPUT_SPARSEKMAP
         ---help---
           This driver supports the Fn-Fx keys on Eee PC laptops.
 
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 5838c69b2fb3..e2be6bb33d92 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -31,10 +31,12 @@
 #include <acpi/acpi_bus.h>
 #include <linux/uaccess.h>
 #include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
 #include <linux/rfkill.h>
 #include <linux/pci.h>
 #include <linux/pci_hotplug.h>
 #include <linux/leds.h>
+#include <linux/dmi.h>
 
 #define EEEPC_LAPTOP_VERSION    "0.1"
 #define EEEPC_LAPTOP_NAME       "Eee PC Hotkey Driver"
@@ -48,6 +50,14 @@ MODULE_AUTHOR("Corentin Chary, Eric Cooper");
 MODULE_DESCRIPTION(EEEPC_LAPTOP_NAME);
 MODULE_LICENSE("GPL");
 
+static bool hotplug_disabled;
+
+module_param(hotplug_disabled, bool, 0644);
+MODULE_PARM_DESC(hotplug_disabled,
+                 "Disable hotplug for wireless device. "
+                 "If your laptop need that, please report to "
+                 "acpi4asus-user@lists.sourceforge.net.");
+
 /*
  * Definitions for Asus EeePC
  */
@@ -120,38 +130,28 @@ static const char *cm_setv[] = {
         NULL, NULL, "PBPS", "TPDS"
 };
 
-struct key_entry {
-        char type;
-        u8 code;
-        u16 keycode;
-};
-
-enum { KE_KEY, KE_END };
-
 static const struct key_entry eeepc_keymap[] = {
-        /* Sleep already handled via generic ACPI code */
-        {KE_KEY, 0x10, KEY_WLAN },
-        {KE_KEY, 0x11, KEY_WLAN },
-        {KE_KEY, 0x12, KEY_PROG1 },
-        {KE_KEY, 0x13, KEY_MUTE },
-        {KE_KEY, 0x14, KEY_VOLUMEDOWN },
-        {KE_KEY, 0x15, KEY_VOLUMEUP },
-        {KE_KEY, 0x16, KEY_DISPLAY_OFF },
-        {KE_KEY, 0x1a, KEY_COFFEE },
-        {KE_KEY, 0x1b, KEY_ZOOM },
-        {KE_KEY, 0x1c, KEY_PROG2 },
-        {KE_KEY, 0x1d, KEY_PROG3 },
-        {KE_KEY, NOTIFY_BRN_MIN, KEY_BRIGHTNESSDOWN },
-        {KE_KEY, NOTIFY_BRN_MAX, KEY_BRIGHTNESSUP },
-        {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE },
-        {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE },
-        {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE },
-        {KE_KEY, 0x37, KEY_F13 }, /* Disable Touchpad */
-        {KE_KEY, 0x38, KEY_F14 },
-        {KE_END, 0},
+        { KE_KEY, 0x10, { KEY_WLAN } },
+        { KE_KEY, 0x11, { KEY_WLAN } },
+        { KE_KEY, 0x12, { KEY_PROG1 } },
+        { KE_KEY, 0x13, { KEY_MUTE } },
+        { KE_KEY, 0x14, { KEY_VOLUMEDOWN } },
+        { KE_KEY, 0x15, { KEY_VOLUMEUP } },
+        { KE_KEY, 0x16, { KEY_DISPLAY_OFF } },
+        { KE_KEY, 0x1a, { KEY_COFFEE } },
+        { KE_KEY, 0x1b, { KEY_ZOOM } },
+        { KE_KEY, 0x1c, { KEY_PROG2 } },
+        { KE_KEY, 0x1d, { KEY_PROG3 } },
+        { KE_KEY, NOTIFY_BRN_MIN, { KEY_BRIGHTNESSDOWN } },
+        { KE_KEY, NOTIFY_BRN_MAX, { KEY_BRIGHTNESSUP } },
+        { KE_KEY, 0x30, { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 0x31, { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 0x32, { KEY_SWITCHVIDEOMODE } },
+        { KE_KEY, 0x37, { KEY_F13 } }, /* Disable Touchpad */
+        { KE_KEY, 0x38, { KEY_F14 } },
+        { KE_END, 0 },
 };
 
-
 /*
  * This is the main structure, we can use it to store useful information
  */
@@ -159,6 +159,8 @@ struct eeepc_laptop {
         acpi_handle handle;             /* the handle of the acpi device */
         u32 cm_supported;               /* the control methods supported
                                            by this BIOS */
+        bool cpufv_disabled;
+        bool hotplug_disabled;
         u16 event_count[128];           /* count for each event */
 
         struct platform_device *platform_device;
@@ -378,6 +380,8 @@ static ssize_t store_cpufv(struct device *dev,
         struct eeepc_cpufv c;
         int rv, value;
 
+        if (eeepc->cpufv_disabled)
+                return -EPERM;
         if (get_cpufv(eeepc, &c))
                 return -ENODEV;
         rv = parse_arg(buf, count, &value);
@@ -389,6 +393,41 @@ static ssize_t store_cpufv(struct device *dev,
         return rv;
 }
 
+static ssize_t show_cpufv_disabled(struct device *dev,
+                          struct device_attribute *attr,
+                          char *buf)
+{
+        struct eeepc_laptop *eeepc = dev_get_drvdata(dev);
+
+        return sprintf(buf, "%d\n", eeepc->cpufv_disabled);
+}
+
+static ssize_t store_cpufv_disabled(struct device *dev,
+                           struct device_attribute *attr,
+                           const char *buf, size_t count)
+{
+        struct eeepc_laptop *eeepc = dev_get_drvdata(dev);
+        int rv, value;
+
+        rv = parse_arg(buf, count, &value);
+        if (rv < 0)
+                return rv;
+
+        switch (value) {
+        case 0:
+                if (eeepc->cpufv_disabled)
+                        pr_warning("cpufv enabled (not officially supported "
+                                "on this model)\n");
+                eeepc->cpufv_disabled = false;
+                return rv;
+        case 1:
+                return -EPERM;
+        default:
+                return -EINVAL;
+        }
+}
+
+
 static struct device_attribute dev_attr_cpufv = {
         .attr = {
                 .name = "cpufv",
@@ -404,12 +443,22 @@ static struct device_attribute dev_attr_available_cpufv = {
         .show   = show_available_cpufv
 };
 
+static struct device_attribute dev_attr_cpufv_disabled = {
+        .attr = {
+                .name = "cpufv_disabled",
+                .mode = 0644 },
+        .show   = show_cpufv_disabled,
+        .store  = store_cpufv_disabled
+};
+
+
 static struct attribute *platform_attributes[] = {
         &dev_attr_camera.attr,
         &dev_attr_cardr.attr,
         &dev_attr_disp.attr,
         &dev_attr_cpufv.attr,
         &dev_attr_available_cpufv.attr,
+        &dev_attr_cpufv_disabled.attr,
         NULL
 };
 
@@ -796,6 +845,9 @@ static int eeepc_rfkill_init(struct eeepc_laptop *eeepc)
         if (result && result != -ENODEV)
                 goto exit;
 
+        if (eeepc->hotplug_disabled)
+                return 0;
+
         result = eeepc_setup_pci_hotplug(eeepc);
         /*
          * If we get -EBUSY then something else is handling the PCI hotplug -
@@ -1090,120 +1142,42 @@ static void eeepc_backlight_exit(struct eeepc_laptop *eeepc)
 /*
  * Input device (i.e. hotkeys)
  */
-static struct key_entry *eeepc_get_entry_by_scancode(
-        struct eeepc_laptop *eeepc,
-        int code)
+static int eeepc_input_init(struct eeepc_laptop *eeepc)
 {
-        struct key_entry *key;
+        struct input_dev *input;
+        int error;
 
-        for (key = eeepc->keymap; key->type != KE_END; key++)
-                if (code == key->code)
-                        return key;
-
-        return NULL;
-}
-
-static void eeepc_input_notify(struct eeepc_laptop *eeepc, int event)
-{
-        static struct key_entry *key;
-
-        key = eeepc_get_entry_by_scancode(eeepc, event);
-        if (key) {
-                switch (key->type) {
-                case KE_KEY:
-                        input_report_key(eeepc->inputdev, key->keycode,
-                                                1);
-                        input_sync(eeepc->inputdev);
-                        input_report_key(eeepc->inputdev, key->keycode,
-                                                0);
-                        input_sync(eeepc->inputdev);
-                        break;
-                }
+        input = input_allocate_device();
+        if (!input) {
+                pr_info("Unable to allocate input device\n");
+                return -ENOMEM;
         }
-}
-
-static struct key_entry *eeepc_get_entry_by_keycode(
-        struct eeepc_laptop *eeepc, int code)
-{
-        struct key_entry *key;
-
-        for (key = eeepc->keymap; key->type != KE_END; key++)
-                if (code == key->keycode && key->type == KE_KEY)
-                        return key;
 
-        return NULL;
-}
+        input->name = "Asus EeePC extra buttons";
+        input->phys = EEEPC_LAPTOP_FILE "/input0";
+        input->id.bustype = BUS_HOST;
+        input->dev.parent = &eeepc->platform_device->dev;
 
-static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
-{
-        struct eeepc_laptop *eeepc = input_get_drvdata(dev);
-        struct key_entry *key = eeepc_get_entry_by_scancode(eeepc, scancode);
-
-        if (key && key->type == KE_KEY) {
-                *keycode = key->keycode;
-                return 0;
+        error = sparse_keymap_setup(input, eeepc_keymap, NULL);
+        if (error) {
+                pr_err("Unable to setup input device keymap\n");
+                goto err_free_dev;
         }
 
-        return -EINVAL;
-}
-
-static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode)
-{
-        struct eeepc_laptop *eeepc = input_get_drvdata(dev);
-        struct key_entry *key;
-        int old_keycode;
-
-        if (keycode < 0 || keycode > KEY_MAX)
-                return -EINVAL;
-
-        key = eeepc_get_entry_by_scancode(eeepc, scancode);
-        if (key && key->type == KE_KEY) {
-                old_keycode = key->keycode;
-                key->keycode = keycode;
-                set_bit(keycode, dev->keybit);
-                if (!eeepc_get_entry_by_keycode(eeepc, old_keycode))
-                        clear_bit(old_keycode, dev->keybit);
-                return 0;
+        error = input_register_device(input);
+        if (error) {
+                pr_err("Unable to register input device\n");
+                goto err_free_keymap;
         }
 
-        return -EINVAL;
-}
-
-static int eeepc_input_init(struct eeepc_laptop *eeepc)
-{
-        const struct key_entry *key;
-        int result;
-
-        eeepc->inputdev = input_allocate_device();
-        if (!eeepc->inputdev) {
-                pr_info("Unable to allocate input device\n");
-                return -ENOMEM;
-        }
-        eeepc->inputdev->name = "Asus EeePC extra buttons";
-        eeepc->inputdev->dev.parent = &eeepc->platform_device->dev;
-        eeepc->inputdev->phys = EEEPC_LAPTOP_FILE "/input0";
-        eeepc->inputdev->id.bustype = BUS_HOST;
-        eeepc->inputdev->getkeycode = eeepc_getkeycode;
-        eeepc->inputdev->setkeycode = eeepc_setkeycode;
-        input_set_drvdata(eeepc->inputdev, eeepc);
-
-        eeepc->keymap = kmemdup(eeepc_keymap, sizeof(eeepc_keymap),
-                                GFP_KERNEL);
-        for (key = eeepc_keymap; key->type != KE_END; key++) {
-                switch (key->type) {
-                case KE_KEY:
-                        set_bit(EV_KEY, eeepc->inputdev->evbit);
-                        set_bit(key->keycode, eeepc->inputdev->keybit);
-                        break;
-                }
-        }
-        result = input_register_device(eeepc->inputdev);
-        if (result) {
-                pr_info("Unable to register input device\n");
-                input_free_device(eeepc->inputdev);
-                return result;
-        }
+        eeepc->inputdev = input;
         return 0;
+
+ err_free_keymap:
+        sparse_keymap_free(input);
+ err_free_dev:
+        input_free_device(input);
+        return error;
 }
 
 static void eeepc_input_exit(struct eeepc_laptop *eeepc)
@@ -1253,11 +1227,59 @@ static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
                                 * event will be desired value (or else ignored)
                                 */
                         }
-                        eeepc_input_notify(eeepc, event);
+                        sparse_keymap_report_event(eeepc->inputdev, event,
+                                                   1, true);
                 }
         } else {
                 /* Everything else is a bona-fide keypress event */
-                eeepc_input_notify(eeepc, event);
+                sparse_keymap_report_event(eeepc->inputdev, event, 1, true);
+        }
+}
+
+static void eeepc_dmi_check(struct eeepc_laptop *eeepc)
+{
+        const char *model;
+
+        model = dmi_get_system_info(DMI_PRODUCT_NAME);
+        if (!model)
+                return;
+
+        /*
+         * Blacklist for setting cpufv (cpu speed).
+         *
+         * EeePC 4G ("701") implements CFVS, but it is not supported
+         * by the pre-installed OS, and the original option to change it
+         * in the BIOS setup screen was removed in later versions.
+         *
+         * Judging by the lack of "Super Hybrid Engine" on Asus product pages,
+         * this applies to all "701" models (4G/4G Surf/2G Surf).
+         *
+         * So Asus made a deliberate decision not to support it on this model.
+         * We have several reports that using it can cause the system to hang
+         *
+         * The hang has also been reported on a "702" (Model name "8G"?).
+         *
+         * We avoid dmi_check_system() / dmi_match(), because they use
+         * substring matching.  We don't want to affect the "701SD"
+         * and "701SDX" models, because they do support S.H.E.
+         */
+        if (strcmp(model, "701") == 0 || strcmp(model, "702") == 0) {
+                eeepc->cpufv_disabled = true;
+                pr_info("model %s does not officially support setting cpu "
+                        "speed\n", model);
+                pr_info("cpufv disabled to avoid instability\n");
+        }
+
+        /*
+         * Blacklist for wlan hotplug
+         *
+         * Eeepc 1005HA doesn't work like others models and don't need the
+         * hotplug code. In fact, current hotplug code seems to unplug another
+         * device...
+         */
+        if (strcmp(model, "1005HA") == 0 || strcmp(model, "1201N") == 0) {
+                eeepc->hotplug_disabled = true;
+                pr_info("wlan hotplug disabled\n");
         }
 }
 
@@ -1342,6 +1364,10 @@ static int __devinit eeepc_acpi_add(struct acpi_device *device)
         strcpy(acpi_device_class(device), EEEPC_ACPI_CLASS);
         device->driver_data = eeepc;
 
+        eeepc->hotplug_disabled = hotplug_disabled;
+
+        eeepc_dmi_check(eeepc);
+
         result = eeepc_acpi_init(eeepc, device);
         if (result)
                 goto fail_platform;
@@ -1452,10 +1478,12 @@ static int __init eeepc_laptop_init(void)
         result = acpi_bus_register_driver(&eeepc_acpi_driver);
         if (result < 0)
                 goto fail_acpi_driver;
+
         if (!eeepc_device_present) {
                 result = -ENODEV;
                 goto fail_no_device;
         }
+
         return 0;
 
 fail_no_device:
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 5af53340da6f..3f71a605a492 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1201,9 +1201,12 @@ static void sony_nc_rfkill_setup(struct acpi_device *device)
         /* the buffer is filled with magic numbers describing the devices
          * available, 0xff terminates the enumeration
          */
-        while ((dev_code = *(device_enum->buffer.pointer + i)) != 0xff &&
-                        i < device_enum->buffer.length) {
-                i++;
+        for (i = 0; i < device_enum->buffer.length; i++) {
+
+                dev_code = *(device_enum->buffer.pointer + i);
+                if (dev_code == 0xff)
+                        break;
+
                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
 
                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index b5496a19d967..24485cc62ff8 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -328,15 +328,7 @@ static const struct pnp_device_id pnp_dev_table[] = {
         /* U.S. Robotics 56K Voice INT PnP*/
         {       "USR9190",              0       },
         /* Wacom tablets */
-        {       "WACF004",              0       },
-        {       "WACF005",              0       },
-        {       "WACF006",              0       },
-        {       "WACF007",              0       },
-        {       "WACF008",              0       },
-        {       "WACF009",              0       },
-        {       "WACF00A",              0       },
-        {       "WACF00B",              0       },
-        {       "WACF00C",              0       },
+        {       "WACFXXX",              0       },
         /* Compaq touchscreen */
         {       "FPI2002",              0 },
         /* Fujitsu Stylistic touchscreens */
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 18130f11238e..60d665a17a88 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -1088,7 +1088,7 @@ imx_console_get_options(struct imx_port *sport, int *baud,
                            int *parity, int *bits)
 {
 
-        if ( readl(sport->port.membase + UCR1) | UCR1_UARTEN ) {
+        if (readl(sport->port.membase + UCR1) & UCR1_UARTEN) {
                 /* ok, the port was enabled */
                 unsigned int ucr2, ubir,ubmr, uartclk;
                 unsigned int baud_raw;
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 047530b285bb..7f2830709512 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -385,13 +385,20 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios,
                 }
 
                 /*
-                 * As a last resort, if the quotient is zero,
-                 * default to 9600 bps
+                 * As a last resort, if the range cannot be met then clip to
+                 * the nearest chip supported rate.
                  */
-                if (!hung_up)
-                        tty_termios_encode_baud_rate(termios, 9600, 9600);
+                if (!hung_up) {
+                        if (baud <= min)
+                                tty_termios_encode_baud_rate(termios,
+                                                        min + 1, min + 1);
+                        else
+                                tty_termios_encode_baud_rate(termios,
+                                                        max - 1, max - 1);
+                }
         }
-
+        /* Should never happen */
+        WARN_ON(1);
         return 0;
 }
 
@@ -2006,12 +2013,6 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)
 
         mutex_lock(&port->mutex);
 
-        if (!console_suspend_enabled && uart_console(uport)) {
-                /* we're going to avoid suspending serial console */
-                mutex_unlock(&port->mutex);
-                return 0;
-        }
-
         tty_dev = device_find_child(uport->dev, &match, serial_match_port);
         if (device_may_wakeup(tty_dev)) {
                 enable_irq_wake(uport->irq);
@@ -2019,20 +2020,23 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)
                 mutex_unlock(&port->mutex);
                 return 0;
         }
-        uport->suspended = 1;
+        if (console_suspend_enabled || !uart_console(uport))
+                uport->suspended = 1;
 
         if (port->flags & ASYNC_INITIALIZED) {
                 const struct uart_ops *ops = uport->ops;
                 int tries;
 
-                set_bit(ASYNCB_SUSPENDED, &port->flags);
-                clear_bit(ASYNCB_INITIALIZED, &port->flags);
+                if (console_suspend_enabled || !uart_console(uport)) {
+                        set_bit(ASYNCB_SUSPENDED, &port->flags);
+                        clear_bit(ASYNCB_INITIALIZED, &port->flags);
 
-                spin_lock_irq(&uport->lock);
-                ops->stop_tx(uport);
-                ops->set_mctrl(uport, 0);
-                ops->stop_rx(uport);
-                spin_unlock_irq(&uport->lock);
+                        spin_lock_irq(&uport->lock);
+                        ops->stop_tx(uport);
+                        ops->set_mctrl(uport, 0);
+                        ops->stop_rx(uport);
+                        spin_unlock_irq(&uport->lock);
+                }
 
                 /*
                  * Wait for the transmitter to empty.
@@ -2047,16 +2051,18 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)
                                drv->dev_name,
                                drv->tty_driver->name_base + uport->line);
 
-                ops->shutdown(uport);
+                if (console_suspend_enabled || !uart_console(uport))
+                        ops->shutdown(uport);
         }
 
         /*
          * Disable the console device before suspending.
          */
-        if (uart_console(uport))
+        if (console_suspend_enabled && uart_console(uport))
                 console_stop(uport->cons);
 
-        uart_change_pm(state, 3);
+        if (console_suspend_enabled || !uart_console(uport))
+                uart_change_pm(state, 3);
 
         mutex_unlock(&port->mutex);
 
@@ -2073,29 +2079,6 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
 
         mutex_lock(&port->mutex);
 
-        if (!console_suspend_enabled && uart_console(uport)) {
-                /* no need to resume serial console, it wasn't suspended */
-                /*
-                 * First try to use the console cflag setting.
-                 */
-                memset(&termios, 0, sizeof(struct ktermios));
-                termios.c_cflag = uport->cons->cflag;
-                /*
-                 * If that's unset, use the tty termios setting.
-                 */
-                if (termios.c_cflag == 0)
-                        termios = *state->port.tty->termios;
-                else {
-                        termios.c_ispeed = termios.c_ospeed =
-                                tty_termios_input_baud_rate(&termios);
-                        termios.c_ispeed = termios.c_ospeed =
-                                tty_termios_baud_rate(&termios);
-                }
-                uport->ops->set_termios(uport, &termios, NULL);
-                mutex_unlock(&port->mutex);
-                return 0;
-        }
-
         tty_dev = device_find_child(uport->dev, &match, serial_match_port);
         if (!uport->suspended && device_may_wakeup(tty_dev)) {
                 disable_irq_wake(uport->irq);
@@ -2121,21 +2104,23 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
                 spin_lock_irq(&uport->lock);
                 ops->set_mctrl(uport, 0);
                 spin_unlock_irq(&uport->lock);
-                ret = ops->startup(uport);
-                if (ret == 0) {
-                        uart_change_speed(state, NULL);
-                        spin_lock_irq(&uport->lock);
-                        ops->set_mctrl(uport, uport->mctrl);
-                        ops->start_tx(uport);
-                        spin_unlock_irq(&uport->lock);
-                        set_bit(ASYNCB_INITIALIZED, &port->flags);
-                } else {
-                        /*
-                         * Failed to resume - maybe hardware went away?
-                         * Clear the "initialized" flag so we won't try
-                         * to call the low level drivers shutdown method.
-                         */
-                        uart_shutdown(state);
+                if (console_suspend_enabled || !uart_console(uport)) {
+                        ret = ops->startup(uport);
+                        if (ret == 0) {
+                                uart_change_speed(state, NULL);
+                                spin_lock_irq(&uport->lock);
+                                ops->set_mctrl(uport, uport->mctrl);
+                                ops->start_tx(uport);
+                                spin_unlock_irq(&uport->lock);
+                                set_bit(ASYNCB_INITIALIZED, &port->flags);
+                        } else {
+                                /*
+                                 * Failed to resume - maybe hardware went away?
+                                 * Clear the "initialized" flag so we won't try
+                                 * to call the low level drivers shutdown method.
+                                 */
+                                uart_shutdown(state);
+                        }
                 }
 
                 clear_bit(ASYNCB_SUSPENDED, &port->flags);
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index 0ee7239c5d69..df854401af2d 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -146,7 +146,8 @@ static void quirk_wakeup_oxsemi(struct pcmcia_device *link)
 {
         struct serial_info *info = link->priv;
 
-        outb(12, info->c950ctrl + 1);
+        if (info->c950ctrl)
+                outb(12, info->c950ctrl + 1);
 }
 
 /* request_region? oxsemi branch does no request_region too... */
diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c
index f4c26572c7df..43c57b7688ab 100644
--- a/drivers/staging/asus_oled/asus_oled.c
+++ b/drivers/staging/asus_oled/asus_oled.c
@@ -194,9 +194,11 @@ static ssize_t set_enabled(struct device *dev, struct device_attribute *attr,
 {
         struct usb_interface *intf = to_usb_interface(dev);
         struct asus_oled_dev *odev = usb_get_intfdata(intf);
-        int temp = strict_strtoul(buf, 10, NULL);
+        unsigned long value;
+        if (strict_strtoul(buf, 10, &value))
+                return -EINVAL;
 
-        enable_oled(odev, temp);
+        enable_oled(odev, value);
 
         return count;
 }
@@ -207,10 +209,12 @@ static ssize_t class_set_enabled(struct device *device,
 {
         struct asus_oled_dev *odev =
                 (struct asus_oled_dev *) dev_get_drvdata(device);
+        unsigned long value;
 
-        int temp = strict_strtoul(buf, 10, NULL);
+        if (strict_strtoul(buf, 10, &value))
+                return -EINVAL;
 
-        enable_oled(odev, temp);
+        enable_oled(odev, value);
 
         return count;
 }
diff --git a/drivers/staging/et131x/et1310_address_map.h b/drivers/staging/et131x/et1310_address_map.h
index 6da843cc343c..e715e4dcb523 100644
--- a/drivers/staging/et131x/et1310_address_map.h
+++ b/drivers/staging/et131x/et1310_address_map.h
@@ -203,11 +203,14 @@ typedef struct _GLOBAL_t {			/* Location: */
  * 9-0: pr ndes
  */
 
-#define ET_DMA10_MASK           0x3FF   /* 10 bit mask for DMA10W types */
-#define ET_DMA10_WRAP           0x400
-#define ET_DMA4_MASK            0x00F   /* 4 bit mask for DMA4W types */
-#define ET_DMA4_WRAP            0x010
-
+#define ET_DMA12_MASK           0x0FFF  /* 12 bit mask for DMA12W types */
+#define ET_DMA12_WRAP           0x1000
+#define ET_DMA10_MASK           0x03FF  /* 10 bit mask for DMA10W types */
+#define ET_DMA10_WRAP           0x0400
+#define ET_DMA4_MASK            0x000F  /* 4 bit mask for DMA4W types */
+#define ET_DMA4_WRAP            0x0010
+
+#define INDEX12(x)      ((x) & ET_DMA12_MASK)
 #define INDEX10(x)      ((x) & ET_DMA10_MASK)
 #define INDEX4(x)       ((x) & ET_DMA4_MASK)
 
@@ -216,6 +219,11 @@ extern inline void add_10bit(u32 *v, int n)
         *v = INDEX10(*v + n) | (*v & ET_DMA10_WRAP);
 }
 
+extern inline void add_12bit(u32 *v, int n)
+{
+        *v = INDEX12(*v + n) | (*v & ET_DMA12_WRAP);
+}
+
 /*
  * 10bit DMA with wrap
  * txdma tx queue write address reg in txdma address map at 0x1010
diff --git a/drivers/staging/et131x/et1310_rx.c b/drivers/staging/et131x/et1310_rx.c
index 3ddc9b12b8db..81c1a7478ad6 100644
--- a/drivers/staging/et131x/et1310_rx.c
+++ b/drivers/staging/et131x/et1310_rx.c
@@ -831,10 +831,10 @@ PMP_RFD nic_rx_pkts(struct et131x_adapter *etdev)
 
         /* Indicate that we have used this PSR entry. */
         /* FIXME wrap 12 */
-        rx_local->local_psr_full = (rx_local->local_psr_full + 1) & 0xFFF;
-        if (rx_local->local_psr_full  > rx_local->PsrNumEntries - 1) {
+        add_12bit(&rx_local->local_psr_full, 1);
+        if ((rx_local->local_psr_full & 0xFFF)  > rx_local->PsrNumEntries - 1) {
                 /* Clear psr full and toggle the wrap bit */
-                rx_local->local_psr_full &=  0xFFF;
+                rx_local->local_psr_full &=  ~0xFFF;
                 rx_local->local_psr_full ^= 0x1000;
         }
 
diff --git a/drivers/staging/hv/Hv.c b/drivers/staging/hv/Hv.c
index c5b6613f2f2f..c2809f2a2ce0 100644
--- a/drivers/staging/hv/Hv.c
+++ b/drivers/staging/hv/Hv.c
@@ -386,7 +386,7 @@ u16 HvSignalEvent(void)
  * retrieve the initialized message and event pages.  Otherwise, we create and
  * initialize the message and event pages.
  */
-int HvSynicInit(u32 irqVector)
+void HvSynicInit(void *irqarg)
 {
         u64 version;
         union hv_synic_simp simp;
@@ -394,13 +394,14 @@ int HvSynicInit(u32 irqVector)
         union hv_synic_sint sharedSint;
         union hv_synic_scontrol sctrl;
         u64 guestID;
-        int ret = 0;
+        u32 irqVector = *((u32 *)(irqarg));
+        int cpu = smp_processor_id();
 
         DPRINT_ENTER(VMBUS);
 
         if (!gHvContext.HypercallPage) {
                 DPRINT_EXIT(VMBUS);
-                return ret;
+                return;
         }
 
         /* Check the version */
@@ -425,27 +426,27 @@ int HvSynicInit(u32 irqVector)
                  */
                 rdmsrl(HV_X64_MSR_GUEST_OS_ID, guestID);
                 if (guestID == HV_LINUX_GUEST_ID) {
-                        gHvContext.synICMessagePage[0] =
+                        gHvContext.synICMessagePage[cpu] =
                                 phys_to_virt(simp.BaseSimpGpa << PAGE_SHIFT);
-                        gHvContext.synICEventPage[0] =
+                        gHvContext.synICEventPage[cpu] =
                                 phys_to_virt(siefp.BaseSiefpGpa << PAGE_SHIFT);
                 } else {
                         DPRINT_ERR(VMBUS, "unknown guest id!!");
                         goto Cleanup;
                 }
                 DPRINT_DBG(VMBUS, "MAPPED: Simp: %p, Sifep: %p",
-                           gHvContext.synICMessagePage[0],
-                           gHvContext.synICEventPage[0]);
+                           gHvContext.synICMessagePage[cpu],
+                           gHvContext.synICEventPage[cpu]);
         } else {
-                gHvContext.synICMessagePage[0] = osd_PageAlloc(1);
-                if (gHvContext.synICMessagePage[0] == NULL) {
+                gHvContext.synICMessagePage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
+                if (gHvContext.synICMessagePage[cpu] == NULL) {
                         DPRINT_ERR(VMBUS,
                                    "unable to allocate SYNIC message page!!");
                         goto Cleanup;
                 }
 
-                gHvContext.synICEventPage[0] = osd_PageAlloc(1);
-                if (gHvContext.synICEventPage[0] == NULL) {
+                gHvContext.synICEventPage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
+                if (gHvContext.synICEventPage[cpu] == NULL) {
                         DPRINT_ERR(VMBUS,
                                    "unable to allocate SYNIC event page!!");
                         goto Cleanup;
@@ -454,7 +455,7 @@ int HvSynicInit(u32 irqVector)
                 /* Setup the Synic's message page */
                 rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
                 simp.SimpEnabled = 1;
-                simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[0])
+                simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[cpu])
                                         >> PAGE_SHIFT;
 
                 DPRINT_DBG(VMBUS, "HV_X64_MSR_SIMP msr set to: %llx",
@@ -465,7 +466,7 @@ int HvSynicInit(u32 irqVector)
                 /* Setup the Synic's event page */
                 rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
                 siefp.SiefpEnabled = 1;
-                siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[0])
+                siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[cpu])
                                         >> PAGE_SHIFT;
 
                 DPRINT_DBG(VMBUS, "HV_X64_MSR_SIEFP msr set to: %llx",
@@ -501,32 +502,30 @@ int HvSynicInit(u32 irqVector)
 
         DPRINT_EXIT(VMBUS);
 
-        return ret;
+        return;
 
 Cleanup:
-        ret = -1;
-
         if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
-                if (gHvContext.synICEventPage[0])
-                        osd_PageFree(gHvContext.synICEventPage[0], 1);
+                if (gHvContext.synICEventPage[cpu])
+                        osd_PageFree(gHvContext.synICEventPage[cpu], 1);
 
-                if (gHvContext.synICMessagePage[0])
-                        osd_PageFree(gHvContext.synICMessagePage[0], 1);
+                if (gHvContext.synICMessagePage[cpu])
+                        osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
         }
 
         DPRINT_EXIT(VMBUS);
-
-        return ret;
+        return;
 }
 
 /**
  * HvSynicCleanup - Cleanup routine for HvSynicInit().
  */
-void HvSynicCleanup(void)
+void HvSynicCleanup(void *arg)
 {
         union hv_synic_sint sharedSint;
         union hv_synic_simp simp;
         union hv_synic_siefp siefp;
+        int cpu = smp_processor_id();
 
         DPRINT_ENTER(VMBUS);
 
@@ -539,6 +538,7 @@ void HvSynicCleanup(void)
 
         sharedSint.Masked = 1;
 
+        /* Need to correctly cleanup in the case of SMP!!! */
         /* Disable the interrupt */
         wrmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, sharedSint.AsUINT64);
 
@@ -560,8 +560,8 @@ void HvSynicCleanup(void)
 
                 wrmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
 
-                osd_PageFree(gHvContext.synICMessagePage[0], 1);
-                osd_PageFree(gHvContext.synICEventPage[0], 1);
+                osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
+                osd_PageFree(gHvContext.synICEventPage[cpu], 1);
         }
 
         DPRINT_EXIT(VMBUS);
diff --git a/drivers/staging/hv/Hv.h b/drivers/staging/hv/Hv.h
index 5379e4bfc56e..fce4b5cdac30 100644
--- a/drivers/staging/hv/Hv.h
+++ b/drivers/staging/hv/Hv.h
@@ -93,7 +93,7 @@ static const struct hv_guid VMBUS_SERVICE_ID = {
         },
 };
 
-#define MAX_NUM_CPUS    1
+#define MAX_NUM_CPUS    32
 
 
 struct hv_input_signal_event_buffer {
@@ -137,8 +137,8 @@ extern u16 HvPostMessage(union hv_connection_id connectionId,
 
 extern u16 HvSignalEvent(void);
 
-extern int HvSynicInit(u32 irqVector);
+extern void HvSynicInit(void *irqarg);
 
-extern void HvSynicCleanup(void);
+extern void HvSynicCleanup(void *arg);
 
 #endif /* __HV_H__ */
diff --git a/drivers/staging/hv/Vmbus.c b/drivers/staging/hv/Vmbus.c
index a4dd06f6d459..35a023e9f9d1 100644
--- a/drivers/staging/hv/Vmbus.c
+++ b/drivers/staging/hv/Vmbus.c
@@ -129,7 +129,7 @@ static int VmbusOnDeviceAdd(struct hv_device *dev, void *AdditionalInfo)
 
         /* strcpy(dev->name, "vmbus"); */
         /* SynIC setup... */
-        ret = HvSynicInit(*irqvector);
+        on_each_cpu(HvSynicInit, (void *)irqvector, 1);
 
         /* Connect to VMBus in the root partition */
         ret = VmbusConnect();
@@ -150,7 +150,7 @@ static int VmbusOnDeviceRemove(struct hv_device *dev)
         DPRINT_ENTER(VMBUS);
         VmbusChannelReleaseUnattachedChannels();
         VmbusDisconnect();
-        HvSynicCleanup();
+        on_each_cpu(HvSynicCleanup, NULL, 1);
         DPRINT_EXIT(VMBUS);
 
         return ret;
@@ -173,7 +173,8 @@ static void VmbusOnCleanup(struct hv_driver *drv)
  */
 static void VmbusOnMsgDPC(struct hv_driver *drv)
 {
-        void *page_addr = gHvContext.synICMessagePage[0];
+        int cpu = smp_processor_id();
+        void *page_addr = gHvContext.synICMessagePage[cpu];
         struct hv_message *msg = (struct hv_message *)page_addr +
                                   VMBUS_MESSAGE_SINT;
         struct hv_message *copied;
@@ -230,11 +231,12 @@ static void VmbusOnEventDPC(struct hv_driver *drv)
 static int VmbusOnISR(struct hv_driver *drv)
 {
         int ret = 0;
+        int cpu = smp_processor_id();
         void *page_addr;
         struct hv_message *msg;
         union hv_synic_event_flags *event;
 
-        page_addr = gHvContext.synICMessagePage[0];
+        page_addr = gHvContext.synICMessagePage[cpu];
         msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT;
 
         DPRINT_ENTER(VMBUS);
@@ -248,7 +250,7 @@ static int VmbusOnISR(struct hv_driver *drv)
         }
 
         /* TODO: Check if there are events to be process */
-        page_addr = gHvContext.synICEventPage[0];
+        page_addr = gHvContext.synICEventPage[cpu];
         event = (union hv_synic_event_flags *)page_addr + VMBUS_MESSAGE_SINT;
 
         /* Since we are a child, we only need to check bit 0 */
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 96f11715cd26..355dffcc23b0 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -494,7 +494,7 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
                 return 0;
         /* allocate 2^1 pages = 8K (on i386);
          * should be more than enough for one device */
-        pages_start = (char *)__get_free_pages(GFP_KERNEL, 1);
+        pages_start = (char *)__get_free_pages(GFP_NOIO, 1);
         if (!pages_start)
                 return -ENOMEM;
 
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 0495fa651225..80995ef0868c 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1684,6 +1684,24 @@ int usb_hcd_alloc_bandwidth(struct usb_device *udev,
                 }
         }
         if (cur_alt && new_alt) {
+                struct usb_interface *iface = usb_ifnum_to_if(udev,
+                                cur_alt->desc.bInterfaceNumber);
+
+                if (iface->resetting_device) {
+                        /*
+                         * The USB core just reset the device, so the xHCI host
+                         * and the device will think alt setting 0 is installed.
+                         * However, the USB core will pass in the alternate
+                         * setting installed before the reset as cur_alt.  Dig
+                         * out the alternate setting 0 structure, or the first
+                         * alternate setting if a broken device doesn't have alt
+                         * setting 0.
+                         */
+                        cur_alt = usb_altnum_to_altsetting(iface, 0);
+                        if (!cur_alt)
+                                cur_alt = &iface->altsetting[0];
+                }
+
                 /* Drop all the endpoints in the current alt setting */
                 for (i = 0; i < cur_alt->desc.bNumEndpoints; i++) {
                         ret = hcd->driver->drop_endpoint(hcd, udev,
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 0cec6caf6e9b..35cc8b9ba1f5 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3347,6 +3347,9 @@ static void hub_events(void)
                                         USB_PORT_FEAT_C_SUSPEND);
                                 udev = hdev->children[i-1];
                                 if (udev) {
+                                        /* TRSMRCY = 10 msec */
+                                        msleep(10);
+
                                         usb_lock_device(udev);
                                         ret = remote_wakeup(hdev->
                                                         children[i-1]);
@@ -3692,19 +3695,14 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
                         usb_enable_interface(udev, intf, true);
                         ret = 0;
                 } else {
-                        /* We've just reset the device, so it will think alt
-                         * setting 0 is installed.  For usb_set_interface() to
-                         * work properly, we need to set the current alternate
-                         * interface setting to 0 (or the first alt setting, if
-                         * the device doesn't have alt setting 0).
+                        /* Let the bandwidth allocation function know that this
+                         * device has been reset, and it will have to use
+                         * alternate setting 0 as the current alternate setting.
                          */
-                        intf->cur_altsetting =
-                                usb_find_alt_setting(config, i, 0);
-                        if (!intf->cur_altsetting)
-                                intf->cur_altsetting =
-                                        &config->intf_cache[i]->altsetting[0];
+                        intf->resetting_device = 1;
                         ret = usb_set_interface(udev, desc->bInterfaceNumber,
                                         desc->bAlternateSetting);
+                        intf->resetting_device = 0;
                 }
                 if (ret < 0) {
                         dev_err(&udev->dev, "failed to restore interface %d "
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 1b994846e8e0..9bc95fec793f 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -906,11 +906,11 @@ char *usb_cache_string(struct usb_device *udev, int index)
         if (index <= 0)
                 return NULL;
 
-        buf = kmalloc(MAX_USB_STRING_SIZE, GFP_KERNEL);
+        buf = kmalloc(MAX_USB_STRING_SIZE, GFP_NOIO);
         if (buf) {
                 len = usb_string(udev, index, buf, MAX_USB_STRING_SIZE);
                 if (len > 0) {
-                        smallbuf = kmalloc(++len, GFP_KERNEL);
+                        smallbuf = kmalloc(++len, GFP_NOIO);
                         if (!smallbuf)
                                 return buf;
                         memcpy(smallbuf, buf, len);
@@ -1731,7 +1731,7 @@ int usb_set_configuration(struct usb_device *dev, int configuration)
         if (cp) {
                 nintf = cp->desc.bNumInterfaces;
                 new_interfaces = kmalloc(nintf * sizeof(*new_interfaces),
-                                GFP_KERNEL);
+                                GFP_NOIO);
                 if (!new_interfaces) {
                         dev_err(&dev->dev, "Out of memory\n");
                         return -ENOMEM;
@@ -1740,7 +1740,7 @@ int usb_set_configuration(struct usb_device *dev, int configuration)
                 for (; n < nintf; ++n) {
                         new_interfaces[n] = kzalloc(
                                         sizeof(struct usb_interface),
-                                        GFP_KERNEL);
+                                        GFP_NOIO);
                         if (!new_interfaces[n]) {
                                 dev_err(&dev->dev, "Out of memory\n");
                                 ret = -ENOMEM;
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 485edf937f25..5f3908f6e2dc 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -115,6 +115,12 @@ show_speed(struct device *dev, struct device_attribute *attr, char *buf)
         case USB_SPEED_HIGH:
                 speed = "480";
                 break;
+        case USB_SPEED_VARIABLE:
+                speed = "480";
+                break;
+        case USB_SPEED_SUPER:
+                speed = "5000";
+                break;
         default:
                 speed = "unknown";
         }
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 5859522d6edd..1ec3857f22e6 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -787,9 +787,10 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
 
                         /* start 20 msec resume signaling from this port,
                          * and make khubd collect PORT_STAT_C_SUSPEND to
-                         * stop that signaling.
+                         * stop that signaling.  Use 5 ms extra for safety,
+                         * like usb_port_resume() does.
                          */
-                        ehci->reset_done [i] = jiffies + msecs_to_jiffies (20);
+                        ehci->reset_done[i] = jiffies + msecs_to_jiffies(25);
                         ehci_dbg (ehci, "port %d remote wakeup\n", i + 1);
                         mod_timer(&hcd->rh_timer, ehci->reset_done[i]);
                 }
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 2c6571c05f35..c75d9270c752 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -120,9 +120,26 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
         del_timer_sync(&ehci->watchdog);
         del_timer_sync(&ehci->iaa_watchdog);
 
-        port = HCS_N_PORTS (ehci->hcs_params);
         spin_lock_irq (&ehci->lock);
 
+        /* Once the controller is stopped, port resumes that are already
+         * in progress won't complete.  Hence if remote wakeup is enabled
+         * for the root hub and any ports are in the middle of a resume or
+         * remote wakeup, we must fail the suspend.
+         */
+        if (hcd->self.root_hub->do_remote_wakeup) {
+                port = HCS_N_PORTS(ehci->hcs_params);
+                while (port--) {
+                        if (ehci->reset_done[port] != 0) {
+                                spin_unlock_irq(&ehci->lock);
+                                ehci_dbg(ehci, "suspend failed because "
+                                                "port %d is resuming\n",
+                                                port + 1);
+                                return -EBUSY;
+                        }
+                }
+        }
+
         /* stop schedules, clean any completed work */
         if (HC_IS_RUNNING(hcd->state)) {
                 ehci_quiesce (ehci);
@@ -138,6 +155,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
          */
         ehci->bus_suspended = 0;
         ehci->owned_ports = 0;
+        port = HCS_N_PORTS(ehci->hcs_params);
         while (port--) {
                 u32 __iomem     *reg = &ehci->regs->port_status [port];
                 u32             t1 = ehci_readl(ehci, reg) & ~PORT_RWC_BITS;
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index a427d3b00634..89521775c567 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -849,9 +849,10 @@ qh_make (
                                  * But interval 1 scheduling is simpler, and
                                  * includes high bandwidth.
                                  */
-                                dbg ("intr period %d uframes, NYET!",
-                                                urb->interval);
-                                goto done;
+                                urb->interval = 1;
+                        } else if (qh->period > ehci->periodic_size) {
+                                qh->period = ehci->periodic_size;
+                                urb->interval = qh->period << 3;
                         }
                 } else {
                         int             think_time;
@@ -874,6 +875,10 @@ qh_make (
                                         usb_calc_bus_time (urb->dev->speed,
                                         is_input, 0, max_packet (maxp)));
                         qh->period = urb->interval;
+                        if (qh->period > ehci->periodic_size) {
+                                qh->period = ehci->periodic_size;
+                                urb->interval = qh->period;
+                        }
                 }
         }
 
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 0951818ef93b..78e7c3cfcb72 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -242,9 +242,10 @@ err:
 static void fhci_usb_free(void *lld)
 {
         struct fhci_usb *usb = lld;
-        struct fhci_hcd *fhci = usb->fhci;
+        struct fhci_hcd *fhci;
 
         if (usb) {
+                fhci = usb->fhci;
                 fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF);
                 fhci_ep0_free(usb);
                 kfree(usb->actual_frame);
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 73352f3739b5..42971657fde2 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -2270,10 +2270,10 @@ static int isp1362_mem_config(struct usb_hcd *hcd)
         dev_info(hcd->self.controller, "ISP1362 Memory usage:\n");
         dev_info(hcd->self.controller, "  ISTL:    2 * %4d:     %4d @ $%04x:$%04x\n",
                  istl_size / 2, istl_size, 0, istl_size / 2);
-        dev_info(hcd->self.controller, "  INTL: %4d * (%3lu+8):  %4d @ $%04x\n",
+        dev_info(hcd->self.controller, "  INTL: %4d * (%3zu+8):  %4d @ $%04x\n",
                  ISP1362_INTL_BUFFERS, intl_blksize - PTD_HEADER_SIZE,
                  intl_size, istl_size);
-        dev_info(hcd->self.controller, "  ATL : %4d * (%3lu+8):  %4d @ $%04x\n",
+        dev_info(hcd->self.controller, "  ATL : %4d * (%3zu+8):  %4d @ $%04x\n",
                  atl_buffers, atl_blksize - PTD_HEADER_SIZE,
                  atl_size, istl_size + intl_size);
         dev_info(hcd->self.controller, "  USED/FREE:   %4d      %4d\n", total,
@@ -2697,6 +2697,8 @@ static int __init isp1362_probe(struct platform_device *pdev)
         void __iomem *data_reg;
         int irq;
         int retval = 0;
+        struct resource *irq_res;
+        unsigned int irq_flags = 0;
 
         /* basic sanity checks first.  board-specific init logic should
          * have initialized this the three resources and probably board
@@ -2710,11 +2712,12 @@ static int __init isp1362_probe(struct platform_device *pdev)
 
         data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         addr = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-        irq = platform_get_irq(pdev, 0);
-        if (!addr || !data || irq < 0) {
+        irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+        if (!addr || !data || !irq_res) {
                 retval = -ENODEV;
                 goto err1;
         }
+        irq = irq_res->start;
 
 #ifdef CONFIG_USB_HCD_DMA
         if (pdev->dev.dma_mask) {
@@ -2781,12 +2784,16 @@ static int __init isp1362_probe(struct platform_device *pdev)
         }
 #endif
 
-#ifdef CONFIG_ARM
-        if (isp1362_hcd->board)
-                set_irq_type(irq, isp1362_hcd->board->int_act_high ? IRQT_RISING : IRQT_FALLING);
-#endif
+        if (irq_res->flags & IORESOURCE_IRQ_HIGHEDGE)
+                irq_flags |= IRQF_TRIGGER_RISING;
+        if (irq_res->flags & IORESOURCE_IRQ_LOWEDGE)
+                irq_flags |= IRQF_TRIGGER_FALLING;
+        if (irq_res->flags & IORESOURCE_IRQ_HIGHLEVEL)
+                irq_flags |= IRQF_TRIGGER_HIGH;
+        if (irq_res->flags & IORESOURCE_IRQ_LOWLEVEL)
+                irq_flags |= IRQF_TRIGGER_LOW;
 
-        retval = usb_add_hcd(hcd, irq, IRQF_TRIGGER_LOW | IRQF_DISABLED | IRQF_SHARED);
+        retval = usb_add_hcd(hcd, irq, irq_flags | IRQF_DISABLED | IRQF_SHARED);
         if (retval != 0)
                 goto err6;
         pr_info("%s, irq %d\n", hcd->product_desc, irq);
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 9600a58299db..27b8f7cb4471 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -1039,12 +1039,12 @@ static void do_atl_int(struct usb_hcd *usb_hcd)
                 if (!nakcount && (dw3 & DW3_QTD_ACTIVE)) {
                         u32 buffstatus;
 
-                        /* XXX
+                        /*
                          * NAKs are handled in HW by the chip. Usually if the
                          * device is not able to send data fast enough.
-                         * This did not trigger for a long time now.
+                         * This happens mostly on slower hardware.
                          */
-                        printk(KERN_ERR "Reloading ptd %p/%p... qh %p readed: "
+                        printk(KERN_NOTICE "Reloading ptd %p/%p... qh %p read: "
                                         "%d of %zu done: %08x cur: %08x\n", qtd,
                                         urb, qh, PTD_XFERRED_LENGTH(dw3),
                                         qtd->length, done_map,
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 5cd0e48f67fb..99cd00fd3514 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -749,7 +749,20 @@ static int uhci_rh_suspend(struct usb_hcd *hcd)
         spin_lock_irq(&uhci->lock);
         if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
                 rc = -ESHUTDOWN;
-        else if (!uhci->dead)
+        else if (uhci->dead)
+                ;               /* Dead controllers tell no tales */
+
+        /* Once the controller is stopped, port resumes that are already
+         * in progress won't complete.  Hence if remote wakeup is enabled
+         * for the root hub and any ports are in the middle of a resume or
+         * remote wakeup, we must fail the suspend.
+         */
+        else if (hcd->self.root_hub->do_remote_wakeup &&
+                        uhci->resuming_ports) {
+                dev_dbg(uhci_dev(uhci), "suspend failed because a port "
+                                "is resuming\n");
+                rc = -EBUSY;
+        } else
                 suspend_rh(uhci, UHCI_RH_SUSPENDED);
         spin_unlock_irq(&uhci->lock);
         return rc;
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 885b585360b9..8270055848ca 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -167,7 +167,7 @@ static void uhci_check_ports(struct uhci_hcd *uhci)
                                 /* Port received a wakeup request */
                                 set_bit(port, &uhci->resuming_ports);
                                 uhci->ports_timeout = jiffies +
-                                                msecs_to_jiffies(20);
+                                                msecs_to_jiffies(25);
 
                                 /* Make sure we see the port again
                                  * after the resuming period is over. */
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index f1ea3a33b6e6..83443d6306d6 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -386,12 +386,12 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
 
         dbg("%s - port %d", __func__, port->number);
 
-        if (serial->type->max_in_flight_urbs) {
-                spin_lock_irqsave(&port->lock, flags);
+        spin_lock_irqsave(&port->lock, flags);
+        if (serial->type->max_in_flight_urbs)
                 chars = port->tx_bytes_flight;
-                spin_unlock_irqrestore(&port->lock, flags);
-        } else if (serial->num_bulk_out)
+        else if (serial->num_bulk_out)
                 chars = kfifo_len(&port->write_fifo);
+        spin_unlock_irqrestore(&port->lock, flags);
 
         dbg("%s - returns %d", __func__, chars);
         return chars;
@@ -489,6 +489,8 @@ void usb_serial_generic_write_bulk_callback(struct urb *urb)
         dbg("%s - port %d", __func__, port->number);
 
         if (port->serial->type->max_in_flight_urbs) {
+                kfree(urb->transfer_buffer);
+
                 spin_lock_irqsave(&port->lock, flags);
                 --port->urbs_in_flight;
                 port->tx_bytes_flight -= urb->transfer_buffer_length;
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 64a0a2c27e12..c932f9053188 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1807,13 +1807,6 @@ UNUSUAL_DEV(  0x2735, 0x100b, 0x0000, 0x9999,
                 US_SC_DEVICE, US_PR_DEVICE, NULL,
                 US_FL_GO_SLOW ),
 
-/* Reported by Rohan Hart <rohan.hart17@gmail.com> */
-UNUSUAL_DEV(  0x2770, 0x915d, 0x0010, 0x0010,
-                "INTOVA",
-                "Pixtreme",
-                US_SC_DEVICE, US_PR_DEVICE, NULL,
-                US_FL_FIX_CAPACITY ),
-
 /* Reported by Frederic Marchal <frederic.marchal@wowcompany.com>
  * Mio Moov 330
  */
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 5a53d4f0dd11..e9f995486ec1 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -434,7 +434,8 @@ static void adjust_quirks(struct us_data *us)
         u16 vid = le16_to_cpu(us->pusb_dev->descriptor.idVendor);
         u16 pid = le16_to_cpu(us->pusb_dev->descriptor.idProduct);
         unsigned f = 0;
-        unsigned int mask = (US_FL_SANE_SENSE | US_FL_FIX_CAPACITY |
+        unsigned int mask = (US_FL_SANE_SENSE | US_FL_BAD_SENSE |
+                        US_FL_FIX_CAPACITY |
                         US_FL_CAPACITY_HEURISTICS | US_FL_IGNORE_DEVICE |
                         US_FL_NOT_LOCKABLE | US_FL_MAX_SECTORS_64 |
                         US_FL_CAPACITY_OK | US_FL_IGNORE_RESIDUE |
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 430a5848a9a5..c7a9479934af 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -96,9 +96,6 @@ static void wdt_enable(void)
 {
         spin_lock(&io_lock);
 
-        if (wdt_clk)
-                clk_set_rate(wdt_clk, 1);
-
         /* stop counter, initiate counter reset */
         __raw_writel(RESET_COUNT, WDTIM_CTRL(wdt_base));
         /*wait for reset to complete. 100% guarantee event */
@@ -125,19 +122,25 @@ static void wdt_disable(void)
         spin_lock(&io_lock);
 
         __raw_writel(0, WDTIM_CTRL(wdt_base));  /*stop counter */
-        if (wdt_clk)
-                clk_set_rate(wdt_clk, 0);
 
         spin_unlock(&io_lock);
 }
 
 static int pnx4008_wdt_open(struct inode *inode, struct file *file)
 {
+        int ret;
+
         if (test_and_set_bit(WDT_IN_USE, &wdt_status))
                 return -EBUSY;
 
         clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
 
+        ret = clk_enable(wdt_clk);
+        if (ret) {
+                clear_bit(WDT_IN_USE, &wdt_status);
+                return ret;
+        }
+
         wdt_enable();
 
         return nonseekable_open(inode, file);
@@ -225,6 +228,7 @@ static int pnx4008_wdt_release(struct inode *inode, struct file *file)
                 printk(KERN_WARNING "WATCHDOG: Device closed unexpectdly\n");
 
         wdt_disable();
+        clk_disable(wdt_clk);
         clear_bit(WDT_IN_USE, &wdt_status);
         clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
 
@@ -273,25 +277,33 @@ static int __devinit pnx4008_wdt_probe(struct platform_device *pdev)
         }
         wdt_base = (void __iomem *)IO_ADDRESS(res->start);
 
-        wdt_clk = clk_get(&pdev->dev, "wdt_ck");
+        wdt_clk = clk_get(&pdev->dev, NULL);
         if (IS_ERR(wdt_clk)) {
                 ret = PTR_ERR(wdt_clk);
                 release_resource(wdt_mem);
                 kfree(wdt_mem);
                 goto out;
-        } else
-                clk_set_rate(wdt_clk, 1);
+        }
+
+        ret = clk_enable(wdt_clk);
+        if (ret) {
+                release_resource(wdt_mem);
+                kfree(wdt_mem);
+                goto out;
+        }
 
         ret = misc_register(&pnx4008_wdt_miscdev);
         if (ret < 0) {
                 printk(KERN_ERR MODULE_NAME "cannot register misc device\n");
                 release_resource(wdt_mem);
                 kfree(wdt_mem);
-                clk_set_rate(wdt_clk, 0);
+                clk_disable(wdt_clk);
+                clk_put(wdt_clk);
         } else {
                 boot_status = (__raw_readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
                     WDIOF_CARDRESET : 0;
                 wdt_disable();          /*disable for now */
+                clk_disable(wdt_clk);
                 set_bit(WDT_DEVICE_INITED, &wdt_status);
         }
 
@@ -302,11 +314,10 @@ out:
 static int __devexit pnx4008_wdt_remove(struct platform_device *pdev)
 {
         misc_deregister(&pnx4008_wdt_miscdev);
-        if (wdt_clk) {
-                clk_set_rate(wdt_clk, 0);
-                clk_put(wdt_clk);
-                wdt_clk = NULL;
-        }
+
+        clk_disable(wdt_clk);
+        clk_put(wdt_clk);
+
         if (wdt_mem) {
                 release_resource(wdt_mem);
                 kfree(wdt_mem);
diff --git a/fs/bio.c b/fs/bio.c
index 76e6713abf94..12429c9553eb 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -78,7 +78,7 @@ static struct kmem_cache *bio_find_or_create_slab(unsigned int extra_size)
 
         i = 0;
         while (i < bio_slab_nr) {
-                struct bio_slab *bslab = &bio_slabs[i];
+                bslab = &bio_slabs[i];
 
                 if (!bslab->slab && entry == -1)
                         entry = i;
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 2e9e69987a82..54f4798ab46a 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -112,12 +112,14 @@ static int btrfs_set_acl(struct btrfs_trans_handle *trans,
         switch (type) {
         case ACL_TYPE_ACCESS:
                 mode = inode->i_mode;
-                ret = posix_acl_equiv_mode(acl, &mode);
-                if (ret < 0)
-                        return ret;
-                ret = 0;
-                inode->i_mode = mode;
                 name = POSIX_ACL_XATTR_ACCESS;
+                if (acl) {
+                        ret = posix_acl_equiv_mode(acl, &mode);
+                        if (ret < 0)
+                                return ret;
+                        inode->i_mode = mode;
+                }
+                ret = 0;
                 break;
         case ACL_TYPE_DEFAULT:
                 if (!S_ISDIR(inode->i_mode))
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 56e50137d0e6..432a2da4641e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -83,6 +83,17 @@ static int block_group_bits(struct btrfs_block_group_cache *cache, u64 bits)
         return (cache->flags & bits) == bits;
 }
 
+void btrfs_get_block_group(struct btrfs_block_group_cache *cache)
+{
+        atomic_inc(&cache->count);
+}
+
+void btrfs_put_block_group(struct btrfs_block_group_cache *cache)
+{
+        if (atomic_dec_and_test(&cache->count))
+                kfree(cache);
+}
+
 /*
  * this adds the block group to the fs_info rb tree for the block group
  * cache
@@ -156,7 +167,7 @@ block_group_cache_tree_search(struct btrfs_fs_info *info, u64 bytenr,
                 }
         }
         if (ret)
-                atomic_inc(&ret->count);
+                btrfs_get_block_group(ret);
         spin_unlock(&info->block_group_cache_lock);
 
         return ret;
@@ -407,6 +418,8 @@ err:
 
         put_caching_control(caching_ctl);
         atomic_dec(&block_group->space_info->caching_threads);
+        btrfs_put_block_group(block_group);
+
         return 0;
 }
 
@@ -447,6 +460,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache)
         up_write(&fs_info->extent_commit_sem);
 
         atomic_inc(&cache->space_info->caching_threads);
+        btrfs_get_block_group(cache);
 
         tsk = kthread_run(caching_kthread, cache, "btrfs-cache-%llu\n",
                           cache->key.objectid);
@@ -486,12 +500,6 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group(
         return cache;
 }
 
-void btrfs_put_block_group(struct btrfs_block_group_cache *cache)
-{
-        if (atomic_dec_and_test(&cache->count))
-                kfree(cache);
-}
-
 static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info,
                                                   u64 flags)
 {
@@ -2582,7 +2590,7 @@ next_block_group(struct btrfs_root *root,
         if (node) {
                 cache = rb_entry(node, struct btrfs_block_group_cache,
                                  cache_node);
-                atomic_inc(&cache->count);
+                btrfs_get_block_group(cache);
         } else
                 cache = NULL;
         spin_unlock(&root->fs_info->block_group_cache_lock);
@@ -4227,7 +4235,7 @@ search:
                 u64 offset;
                 int cached;
 
-                atomic_inc(&block_group->count);
+                btrfs_get_block_group(block_group);
                 search_start = block_group->key.objectid;
 
 have_block_group:
@@ -4315,7 +4323,7 @@ have_block_group:
 
                                 btrfs_put_block_group(block_group);
                                 block_group = last_ptr->block_group;
-                                atomic_inc(&block_group->count);
+                                btrfs_get_block_group(block_group);
                                 spin_unlock(&last_ptr->lock);
                                 spin_unlock(&last_ptr->refill_lock);
 
@@ -7395,9 +7403,7 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
                         wait_block_group_cache_done(block_group);
 
                 btrfs_remove_free_space_cache(block_group);
-
-                WARN_ON(atomic_read(&block_group->count) != 1);
-                kfree(block_group);
+                btrfs_put_block_group(block_group);
 
                 spin_lock(&info->block_group_cache_lock);
         }
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index feaa13b105d9..c02033596f02 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -506,7 +506,8 @@ next_slot:
 }
 
 static int extent_mergeable(struct extent_buffer *leaf, int slot,
-                            u64 objectid, u64 bytenr, u64 *start, u64 *end)
+                            u64 objectid, u64 bytenr, u64 orig_offset,
+                            u64 *start, u64 *end)
 {
         struct btrfs_file_extent_item *fi;
         struct btrfs_key key;
@@ -522,6 +523,7 @@ static int extent_mergeable(struct extent_buffer *leaf, int slot,
         fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item);
         if (btrfs_file_extent_type(leaf, fi) != BTRFS_FILE_EXTENT_REG ||
             btrfs_file_extent_disk_bytenr(leaf, fi) != bytenr ||
+            btrfs_file_extent_offset(leaf, fi) != key.offset - orig_offset ||
             btrfs_file_extent_compression(leaf, fi) ||
             btrfs_file_extent_encryption(leaf, fi) ||
             btrfs_file_extent_other_encoding(leaf, fi))
@@ -561,6 +563,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
         u64 split;
         int del_nr = 0;
         int del_slot = 0;
+        int recow;
         int ret;
 
         btrfs_drop_extent_cache(inode, start, end - 1, 0);
@@ -568,6 +571,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
         path = btrfs_alloc_path();
         BUG_ON(!path);
 again:
+        recow = 0;
         split = start;
         key.objectid = inode->i_ino;
         key.type = BTRFS_EXTENT_DATA_KEY;
@@ -591,12 +595,60 @@ again:
         bytenr = btrfs_file_extent_disk_bytenr(leaf, fi);
         num_bytes = btrfs_file_extent_disk_num_bytes(leaf, fi);
         orig_offset = key.offset - btrfs_file_extent_offset(leaf, fi);
+        memcpy(&new_key, &key, sizeof(new_key));
+
+        if (start == key.offset && end < extent_end) {
+                other_start = 0;
+                other_end = start;
+                if (extent_mergeable(leaf, path->slots[0] - 1,
+                                     inode->i_ino, bytenr, orig_offset,
+                                     &other_start, &other_end)) {
+                        new_key.offset = end;
+                        btrfs_set_item_key_safe(trans, root, path, &new_key);
+                        fi = btrfs_item_ptr(leaf, path->slots[0],
+                                            struct btrfs_file_extent_item);
+                        btrfs_set_file_extent_num_bytes(leaf, fi,
+                                                        extent_end - end);
+                        btrfs_set_file_extent_offset(leaf, fi,
+                                                     end - orig_offset);
+                        fi = btrfs_item_ptr(leaf, path->slots[0] - 1,
+                                            struct btrfs_file_extent_item);
+                        btrfs_set_file_extent_num_bytes(leaf, fi,
+                                                        end - other_start);
+                        btrfs_mark_buffer_dirty(leaf);
+                        goto out;
+                }
+        }
+
+        if (start > key.offset && end == extent_end) {
+                other_start = end;
+                other_end = 0;
+                if (extent_mergeable(leaf, path->slots[0] + 1,
+                                     inode->i_ino, bytenr, orig_offset,
+                                     &other_start, &other_end)) {
+                        fi = btrfs_item_ptr(leaf, path->slots[0],
+                                            struct btrfs_file_extent_item);
+                        btrfs_set_file_extent_num_bytes(leaf, fi,
+                                                        start - key.offset);
+                        path->slots[0]++;
+                        new_key.offset = start;
+                        btrfs_set_item_key_safe(trans, root, path, &new_key);
+
+                        fi = btrfs_item_ptr(leaf, path->slots[0],
+                                            struct btrfs_file_extent_item);
+                        btrfs_set_file_extent_num_bytes(leaf, fi,
+                                                        other_end - start);
+                        btrfs_set_file_extent_offset(leaf, fi,
+                                                     start - orig_offset);
+                        btrfs_mark_buffer_dirty(leaf);
+                        goto out;
+                }
+        }
 
         while (start > key.offset || end < extent_end) {
                 if (key.offset == start)
                         split = end;
 
-                memcpy(&new_key, &key, sizeof(new_key));
                 new_key.offset = split;
                 ret = btrfs_duplicate_item(trans, root, path, &new_key);
                 if (ret == -EAGAIN) {
@@ -631,15 +683,18 @@ again:
                         path->slots[0]--;
                         extent_end = end;
                 }
+                recow = 1;
         }
 
-        fi = btrfs_item_ptr(leaf, path->slots[0],
-                            struct btrfs_file_extent_item);
-
         other_start = end;
         other_end = 0;
-        if (extent_mergeable(leaf, path->slots[0] + 1, inode->i_ino,
-                             bytenr, &other_start, &other_end)) {
+        if (extent_mergeable(leaf, path->slots[0] + 1,
+                             inode->i_ino, bytenr, orig_offset,
+                             &other_start, &other_end)) {
+                if (recow) {
+                        btrfs_release_path(root, path);
+                        goto again;
+                }
                 extent_end = other_end;
                 del_slot = path->slots[0] + 1;
                 del_nr++;
@@ -650,8 +705,13 @@ again:
         }
         other_start = 0;
         other_end = start;
-        if (extent_mergeable(leaf, path->slots[0] - 1, inode->i_ino,
-                             bytenr, &other_start, &other_end)) {
+        if (extent_mergeable(leaf, path->slots[0] - 1,
+                             inode->i_ino, bytenr, orig_offset,
+                             &other_start, &other_end)) {
+                if (recow) {
+                        btrfs_release_path(root, path);
+                        goto again;
+                }
                 key.offset = other_start;
                 del_slot = path->slots[0];
                 del_nr++;
@@ -660,22 +720,22 @@ again:
                                         inode->i_ino, orig_offset);
                 BUG_ON(ret);
         }
+        fi = btrfs_item_ptr(leaf, path->slots[0],
+                           struct btrfs_file_extent_item);
         if (del_nr == 0) {
                 btrfs_set_file_extent_type(leaf, fi,
                                            BTRFS_FILE_EXTENT_REG);
                 btrfs_mark_buffer_dirty(leaf);
-                goto out;
-        }
-
-        fi = btrfs_item_ptr(leaf, del_slot - 1,
-                            struct btrfs_file_extent_item);
-        btrfs_set_file_extent_type(leaf, fi, BTRFS_FILE_EXTENT_REG);
-        btrfs_set_file_extent_num_bytes(leaf, fi,
-                                        extent_end - key.offset);
-        btrfs_mark_buffer_dirty(leaf);
+        } else {
+                btrfs_set_file_extent_type(leaf, fi,
+                                           BTRFS_FILE_EXTENT_REG);
+                btrfs_set_file_extent_num_bytes(leaf, fi,
+                                                extent_end - key.offset);
+                btrfs_mark_buffer_dirty(leaf);
 
-        ret = btrfs_del_items(trans, root, path, del_slot, del_nr);
-        BUG_ON(ret);
+                ret = btrfs_del_items(trans, root, path, del_slot, del_nr);
+                BUG_ON(ret);
+        }
 out:
         btrfs_free_path(path);
         return 0;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5440bab23635..b330e27c2d8b 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3796,6 +3796,12 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
 
         if (location.type == BTRFS_INODE_ITEM_KEY) {
                 inode = btrfs_iget(dir->i_sb, &location, root);
+                if (unlikely(root->clean_orphans) &&
+                    !(inode->i_sb->s_flags & MS_RDONLY)) {
+                        down_read(&root->fs_info->cleanup_work_sem);
+                        btrfs_orphan_cleanup(root);
+                        up_read(&root->fs_info->cleanup_work_sem);
+                }
                 return inode;
         }
 
@@ -3995,7 +4001,11 @@ skip:
 
         /* Reached end of directory/root. Bump pos past the last item. */
         if (key_type == BTRFS_DIR_INDEX_KEY)
-                filp->f_pos = INT_LIMIT(off_t);
+                /*
+                 * 32-bit glibc will use getdents64, but then strtol -
+                 * so the last number we can serve is this.
+                 */
+                filp->f_pos = 0x7fffffff;
         else
                 filp->f_pos++;
 nopos:
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index b10a49d4bc6a..5c2a9e78a949 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -626,6 +626,8 @@ int btrfs_ordered_update_i_size(struct inode *inode, u64 offset,
 
         if (ordered)
                 offset = entry_end(ordered);
+        else
+                offset = ALIGN(offset, BTRFS_I(inode)->root->sectorsize);
 
         mutex_lock(&tree->mutex);
         disk_i_size = BTRFS_I(inode)->disk_i_size;
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index a9728680eca8..ed3e4a2ec2c8 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3281,8 +3281,10 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
                 return -ENOMEM;
 
         path = btrfs_alloc_path();
-        if (!path)
+        if (!path) {
+                kfree(cluster);
                 return -ENOMEM;
+        }
 
         rc->extents_found = 0;
         rc->extents_skipped = 0;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 198cff28766d..220dad5db017 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2649,8 +2649,10 @@ again:
         em = lookup_extent_mapping(em_tree, logical, *length);
         read_unlock(&em_tree->lock);
 
-        if (!em && unplug_page)
+        if (!em && unplug_page) {
+                kfree(multi);
                 return 0;
+        }
 
         if (!em) {
                 printk(KERN_CRIT "unable to find logical %llu len %llu\n",
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 332dd00f0894..c5c45de1a2ee 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1005,6 +1005,9 @@ COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
 COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
 COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
 #endif
+/* Big V (don't complain on serial console) */
+IGNORE_IOCTL(VT_OPENQRY)
+IGNORE_IOCTL(VT_GETMODE)
 /* Little p (/dev/rtc, /dev/envctrl, etc.) */
 COMPATIBLE_IOCTL(RTC_AIE_ON)
 COMPATIBLE_IOCTL(RTC_AIE_OFF)
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index fbb6e5eed697..7cb0a59f4b9d 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1748,7 +1748,7 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm,
                             char *cipher_name, size_t *key_size)
 {
         char dummy_key[ECRYPTFS_MAX_KEY_BYTES];
-        char *full_alg_name;
+        char *full_alg_name = NULL;
         int rc;
 
         *key_tfm = NULL;
@@ -1763,7 +1763,6 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm,
         if (rc)
                 goto out;
         *key_tfm = crypto_alloc_blkcipher(full_alg_name, 0, CRYPTO_ALG_ASYNC);
-        kfree(full_alg_name);
         if (IS_ERR(*key_tfm)) {
                 rc = PTR_ERR(*key_tfm);
                 printk(KERN_ERR "Unable to allocate crypto cipher with name "
@@ -1786,6 +1785,7 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm,
                 goto out;
         }
 out:
+        kfree(full_alg_name);
         return rc;
 }
 
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 9e944057001b..678172b61be2 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -158,7 +158,7 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
         struct dentry *ecryptfs_dentry = file->f_path.dentry;
         /* Private value of ecryptfs_dentry allocated in
          * ecryptfs_lookup() */
-        struct dentry *lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry);
+        struct dentry *lower_dentry;
         struct ecryptfs_file_info *file_info;
 
         mount_crypt_stat = &ecryptfs_superblock_to_private(
@@ -191,13 +191,6 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
                                       | ECRYPTFS_ENCRYPTED);
         }
         mutex_unlock(&crypt_stat->cs_mutex);
-        if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY)
-            && !(file->f_flags & O_RDONLY)) {
-                rc = -EPERM;
-                printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs "
-                       "file must hence be opened RO\n", __func__);
-                goto out;
-        }
         if (!ecryptfs_inode_to_private(inode)->lower_file) {
                 rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
                 if (rc) {
@@ -208,6 +201,13 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
                         goto out;
                 }
         }
+        if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY)
+            && !(file->f_flags & O_RDONLY)) {
+                rc = -EPERM;
+                printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs "
+                       "file must hence be opened RO\n", __func__);
+                goto out;
+        }
         ecryptfs_set_file_lower(
                 file, ecryptfs_inode_to_private(inode)->lower_file);
         if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) {
@@ -299,7 +299,6 @@ static int ecryptfs_ioctl(struct inode *inode, struct file *file,
 const struct file_operations ecryptfs_dir_fops = {
         .readdir = ecryptfs_readdir,
         .ioctl = ecryptfs_ioctl,
-        .mmap = generic_file_mmap,
         .open = ecryptfs_open,
         .flush = ecryptfs_flush,
         .release = ecryptfs_release,
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 7f8545032930..4a430ab4115c 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -282,7 +282,8 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry,
                 goto out;
         }
         rc = ecryptfs_interpose(lower_dentry, ecryptfs_dentry,
-                                ecryptfs_dir_inode->i_sb, 1);
+                                ecryptfs_dir_inode->i_sb,
+                                ECRYPTFS_INTERPOSE_FLAG_D_ADD);
         if (rc) {
                 printk(KERN_ERR "%s: Error interposing; rc = [%d]\n",
                        __func__, rc);
@@ -463,9 +464,6 @@ out_lock:
         unlock_dir(lower_dir_dentry);
         dput(lower_new_dentry);
         dput(lower_old_dentry);
-        d_drop(lower_old_dentry);
-        d_drop(new_dentry);
-        d_drop(old_dentry);
         return rc;
 }
 
@@ -614,6 +612,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         struct dentry *lower_new_dentry;
         struct dentry *lower_old_dir_dentry;
         struct dentry *lower_new_dir_dentry;
+        struct dentry *trap = NULL;
 
         lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry);
         lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry);
@@ -621,7 +620,17 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         dget(lower_new_dentry);
         lower_old_dir_dentry = dget_parent(lower_old_dentry);
         lower_new_dir_dentry = dget_parent(lower_new_dentry);
-        lock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
+        trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
+        /* source should not be ancestor of target */
+        if (trap == lower_old_dentry) {
+                rc = -EINVAL;
+                goto out_lock;
+        }
+        /* target should not be ancestor of source */
+        if (trap == lower_new_dentry) {
+                rc = -ENOTEMPTY;
+                goto out_lock;
+        }
         rc = vfs_rename(lower_old_dir_dentry->d_inode, lower_old_dentry,
                         lower_new_dir_dentry->d_inode, lower_new_dentry);
         if (rc)
@@ -772,18 +781,23 @@ upper_size_to_lower_size(struct ecryptfs_crypt_stat *crypt_stat,
 }
 
 /**
- * ecryptfs_truncate
+ * truncate_upper
  * @dentry: The ecryptfs layer dentry
- * @new_length: The length to expand the file to
+ * @ia: Address of the ecryptfs inode's attributes
+ * @lower_ia: Address of the lower inode's attributes
  *
  * Function to handle truncations modifying the size of the file. Note
  * that the file sizes are interpolated. When expanding, we are simply
- * writing strings of 0's out. When truncating, we need to modify the
- * underlying file size according to the page index interpolations.
+ * writing strings of 0's out. When truncating, we truncate the upper
+ * inode and update the lower_ia according to the page index
+ * interpolations. If ATTR_SIZE is set in lower_ia->ia_valid upon return,
+ * the caller must use lower_ia in a call to notify_change() to perform
+ * the truncation of the lower inode.
  *
  * Returns zero on success; non-zero otherwise
  */
-int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
+static int truncate_upper(struct dentry *dentry, struct iattr *ia,
+                          struct iattr *lower_ia)
 {
         int rc = 0;
         struct inode *inode = dentry->d_inode;
@@ -794,8 +808,10 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
         loff_t lower_size_before_truncate;
         loff_t lower_size_after_truncate;
 
-        if (unlikely((new_length == i_size)))
+        if (unlikely((ia->ia_size == i_size))) {
+                lower_ia->ia_valid &= ~ATTR_SIZE;
                 goto out;
+        }
         crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat;
         /* Set up a fake ecryptfs file, this is used to interface with
          * the file in the underlying filesystem so that the
@@ -815,28 +831,30 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
                 &fake_ecryptfs_file,
                 ecryptfs_inode_to_private(dentry->d_inode)->lower_file);
         /* Switch on growing or shrinking file */
-        if (new_length > i_size) {
+        if (ia->ia_size > i_size) {
                 char zero[] = { 0x00 };
 
+                lower_ia->ia_valid &= ~ATTR_SIZE;
                 /* Write a single 0 at the last position of the file;
                  * this triggers code that will fill in 0's throughout
                  * the intermediate portion of the previous end of the
                  * file and the new and of the file */
                 rc = ecryptfs_write(&fake_ecryptfs_file, zero,
-                                    (new_length - 1), 1);
-        } else { /* new_length < i_size_read(inode) */
-                /* We're chopping off all the pages down do the page
-                 * in which new_length is located. Fill in the end of
-                 * that page from (new_length & ~PAGE_CACHE_MASK) to
+                                    (ia->ia_size - 1), 1);
+        } else { /* ia->ia_size < i_size_read(inode) */
+                /* We're chopping off all the pages down to the page
+                 * in which ia->ia_size is located. Fill in the end of
+                 * that page from (ia->ia_size & ~PAGE_CACHE_MASK) to
                  * PAGE_CACHE_SIZE with zeros. */
                 size_t num_zeros = (PAGE_CACHE_SIZE
-                                    - (new_length & ~PAGE_CACHE_MASK));
+                                    - (ia->ia_size & ~PAGE_CACHE_MASK));
 
                 if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
-                        rc = vmtruncate(inode, new_length);
+                        rc = vmtruncate(inode, ia->ia_size);
                         if (rc)
                                 goto out_free;
-                        rc = vmtruncate(lower_dentry->d_inode, new_length);
+                        lower_ia->ia_size = ia->ia_size;
+                        lower_ia->ia_valid |= ATTR_SIZE;
                         goto out_free;
                 }
                 if (num_zeros) {
@@ -848,7 +866,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
                                 goto out_free;
                         }
                         rc = ecryptfs_write(&fake_ecryptfs_file, zeros_virt,
-                                            new_length, num_zeros);
+                                            ia->ia_size, num_zeros);
                         kfree(zeros_virt);
                         if (rc) {
                                 printk(KERN_ERR "Error attempting to zero out "
@@ -857,7 +875,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
                                 goto out_free;
                         }
                 }
-                vmtruncate(inode, new_length);
+                vmtruncate(inode, ia->ia_size);
                 rc = ecryptfs_write_inode_size_to_metadata(inode);
                 if (rc) {
                         printk(KERN_ERR "Problem with "
@@ -870,10 +888,12 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
                 lower_size_before_truncate =
                     upper_size_to_lower_size(crypt_stat, i_size);
                 lower_size_after_truncate =
-                    upper_size_to_lower_size(crypt_stat, new_length);
-                if (lower_size_after_truncate < lower_size_before_truncate)
-                        vmtruncate(lower_dentry->d_inode,
-                                   lower_size_after_truncate);
+                    upper_size_to_lower_size(crypt_stat, ia->ia_size);
+                if (lower_size_after_truncate < lower_size_before_truncate) {
+                        lower_ia->ia_size = lower_size_after_truncate;
+                        lower_ia->ia_valid |= ATTR_SIZE;
+                } else
+                        lower_ia->ia_valid &= ~ATTR_SIZE;
         }
 out_free:
         if (ecryptfs_file_to_private(&fake_ecryptfs_file))
@@ -883,6 +903,33 @@ out:
         return rc;
 }
 
+/**
+ * ecryptfs_truncate
+ * @dentry: The ecryptfs layer dentry
+ * @new_length: The length to expand the file to
+ *
+ * Simple function that handles the truncation of an eCryptfs inode and
+ * its corresponding lower inode.
+ *
+ * Returns zero on success; non-zero otherwise
+ */
+int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
+{
+        struct iattr ia = { .ia_valid = ATTR_SIZE, .ia_size = new_length };
+        struct iattr lower_ia = { .ia_valid = 0 };
+        int rc;
+
+        rc = truncate_upper(dentry, &ia, &lower_ia);
+        if (!rc && lower_ia.ia_valid & ATTR_SIZE) {
+                struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
+
+                mutex_lock(&lower_dentry->d_inode->i_mutex);
+                rc = notify_change(lower_dentry, &lower_ia);
+                mutex_unlock(&lower_dentry->d_inode->i_mutex);
+        }
+        return rc;
+}
+
 static int
 ecryptfs_permission(struct inode *inode, int mask)
 {
@@ -905,6 +952,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
 {
         int rc = 0;
         struct dentry *lower_dentry;
+        struct iattr lower_ia;
         struct inode *inode;
         struct inode *lower_inode;
         struct ecryptfs_crypt_stat *crypt_stat;
@@ -943,15 +991,11 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
                 }
         }
         mutex_unlock(&crypt_stat->cs_mutex);
+        memcpy(&lower_ia, ia, sizeof(lower_ia));
+        if (ia->ia_valid & ATTR_FILE)
+                lower_ia.ia_file = ecryptfs_file_to_lower(ia->ia_file);
         if (ia->ia_valid & ATTR_SIZE) {
-                ecryptfs_printk(KERN_DEBUG,
-                                "ia->ia_valid = [0x%x] ATTR_SIZE" " = [0x%x]\n",
-                                ia->ia_valid, ATTR_SIZE);
-                rc = ecryptfs_truncate(dentry, ia->ia_size);
-                /* ecryptfs_truncate handles resizing of the lower file */
-                ia->ia_valid &= ~ATTR_SIZE;
-                ecryptfs_printk(KERN_DEBUG, "ia->ia_valid = [%x]\n",
-                                ia->ia_valid);
+                rc = truncate_upper(dentry, ia, &lower_ia);
                 if (rc < 0)
                         goto out;
         }
@@ -960,17 +1004,32 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
          * mode change is for clearing setuid/setgid bits. Allow lower fs
          * to interpret this in its own way.
          */
-        if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID))
-                ia->ia_valid &= ~ATTR_MODE;
+        if (lower_ia.ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID))
+                lower_ia.ia_valid &= ~ATTR_MODE;
 
         mutex_lock(&lower_dentry->d_inode->i_mutex);
-        rc = notify_change(lower_dentry, ia);
+        rc = notify_change(lower_dentry, &lower_ia);
         mutex_unlock(&lower_dentry->d_inode->i_mutex);
 out:
         fsstack_copy_attr_all(inode, lower_inode);
         return rc;
 }
 
+int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
+                     struct kstat *stat)
+{
+        struct kstat lower_stat;
+        int rc;
+
+        rc = vfs_getattr(ecryptfs_dentry_to_lower_mnt(dentry),
+                         ecryptfs_dentry_to_lower(dentry), &lower_stat);
+        if (!rc) {
+                generic_fillattr(dentry->d_inode, stat);
+                stat->blocks = lower_stat.blocks;
+        }
+        return rc;
+}
+
 int
 ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
                   size_t size, int flags)
@@ -1100,6 +1159,7 @@ const struct inode_operations ecryptfs_dir_iops = {
 const struct inode_operations ecryptfs_main_iops = {
         .permission = ecryptfs_permission,
         .setattr = ecryptfs_setattr,
+        .getattr = ecryptfs_getattr,
         .setxattr = ecryptfs_setxattr,
         .getxattr = ecryptfs_getxattr,
         .listxattr = ecryptfs_listxattr,
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 567bc4b9f70a..ea2f92101dfe 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -585,8 +585,8 @@ out:
  *                        with as much information as it can before needing
  *                        the lower filesystem.
  * ecryptfs_read_super(): this accesses the lower filesystem and uses
- *                        ecryptfs_interpolate to perform most of the linking
- * ecryptfs_interpolate(): links the lower filesystem into ecryptfs
+ *                        ecryptfs_interpose to perform most of the linking
+ * ecryptfs_interpose(): links the lower filesystem into ecryptfs (inode.c)
  */
 static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags,
                         const char *dev_name, void *raw_data,
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 9d7febde10a1..09469971472f 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -152,7 +152,7 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
 #include <linux/hardirq.h>
 #define ACPI_PREEMPTION_POINT() \
         do { \
-                if (!in_atomic_preempt_off()) \
+                if (!in_atomic_preempt_off() && !irqs_disabled()) \
                         cond_resched(); \
         } while (0)
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 36924255c0d5..b926afe8c03e 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -80,7 +80,7 @@ char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 void __acpi_unmap_table(char *map, unsigned long size);
 int early_acpi_boot_init(void);
 int acpi_boot_init (void);
-int acpi_boot_table_init (void);
+void acpi_boot_table_init (void);
 int acpi_mps_check (void);
 int acpi_numa_init (void);
 
@@ -321,9 +321,9 @@ static inline int acpi_boot_init(void)
         return 0;
 }
 
-static inline int acpi_boot_table_init(void)
+static inline void acpi_boot_table_init(void)
 {
-        return 0;
+        return;
 }
 
 static inline int acpi_mps_check(void)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 9b98173a8184..5c8018977efa 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -938,6 +938,8 @@ extern void blk_queue_io_opt(struct request_queue *q, unsigned int opt);
 extern void blk_set_default_limits(struct queue_limits *lim);
 extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                             sector_t offset);
+extern int bdev_stack_limits(struct queue_limits *t, struct block_device *bdev,
+                            sector_t offset);
 extern void disk_stack_limits(struct gendisk *disk, struct block_device *bdev,
                               sector_t offset);
 extern void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b);
@@ -1148,8 +1150,11 @@ static inline int queue_discard_alignment(struct request_queue *q)
 static inline int queue_sector_discard_alignment(struct request_queue *q,
                                                  sector_t sector)
 {
-        return ((sector << 9) - q->limits.discard_alignment)
-                & (q->limits.discard_granularity - 1);
+        struct queue_limits *lim = &q->limits;
+        unsigned int alignment = (sector << 9) & (lim->discard_granularity - 1);
+
+        return (lim->discard_granularity + lim->discard_alignment - alignment)
+                & (lim->discard_granularity - 1);
 }
 
 static inline unsigned int queue_discard_zeroes_data(struct request_queue *q)
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index e84f4733cb55..78962272338a 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -53,7 +53,7 @@
 
 
 extern const char *drbd_buildtag(void);
-#define REL_VERSION "8.3.6"
+#define REL_VERSION "8.3.7"
 #define API_VERSION 88
 #define PRO_VERSION_MIN 86
 #define PRO_VERSION_MAX 91
diff --git a/include/linux/drbd_nl.h b/include/linux/drbd_nl.h
index db5721ad50d1..a4d82f895994 100644
--- a/include/linux/drbd_nl.h
+++ b/include/linux/drbd_nl.h
@@ -69,6 +69,7 @@ NL_PACKET(disconnect, 6, )
 
 NL_PACKET(resize, 7,
         NL_INT64(               29,     T_MAY_IGNORE,   resize_size)
+        NL_BIT(                 68,     T_MAY_IGNORE,   resize_force)
 )
 
 NL_PACKET(syncer_conf, 8,
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index c6c0c41af35f..9717081c75ad 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -256,9 +256,9 @@ extern struct hd_struct *disk_map_sector_rcu(struct gendisk *disk,
 #define part_stat_read(part, field)                                     \
 ({                                                                      \
         typeof((part)->dkstats->field) res = 0;                         \
-        int i;                                                          \
-        for_each_possible_cpu(i)                                        \
-                res += per_cpu_ptr((part)->dkstats, i)->field;          \
+        unsigned int _cpu;                                              \
+        for_each_possible_cpu(_cpu)                                     \
+                res += per_cpu_ptr((part)->dkstats, _cpu)->field;       \
         res;                                                            \
 })
 
diff --git a/include/linux/i2c-pnx.h b/include/linux/i2c-pnx.h
index 9eb07bbc6522..a87124d4d533 100644
--- a/include/linux/i2c-pnx.h
+++ b/include/linux/i2c-pnx.h
@@ -12,9 +12,8 @@
 #ifndef __I2C_PNX_H__
 #define __I2C_PNX_H__
 
-#include <linux/pm.h>
-
 struct platform_device;
+struct clk;
 
 struct i2c_pnx_mif {
         int                     ret;            /* Return value */
@@ -26,20 +25,18 @@ struct i2c_pnx_mif {
 };
 
 struct i2c_pnx_algo_data {
-        u32                     base;
-        u32                     ioaddr;
-        int                     irq;
+        void __iomem            *ioaddr;
         struct i2c_pnx_mif      mif;
         int                     last;
+        struct clk              *clk;
+        struct i2c_pnx_data     *i2c_pnx;
+        struct i2c_adapter      adapter;
 };
 
 struct i2c_pnx_data {
-        int (*suspend) (struct platform_device *pdev, pm_message_t state);
-        int (*resume) (struct platform_device *pdev);
-        u32 (*calculate_input_freq) (struct platform_device *pdev);
-        int (*set_clock_run) (struct platform_device *pdev);
-        int (*set_clock_stop) (struct platform_device *pdev);
-        struct i2c_adapter *adapter;
+        const char *name;
+        u32 base;
+        int irq;
 };
 
 #endif /* __I2C_PNX_H__ */
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index a63235996309..78ef023227d4 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -4,32 +4,6 @@
 #include <linux/radix-tree.h>
 #include <linux/rcupdate.h>
 
-/*
- * This is the per-process anticipatory I/O scheduler state.
- */
-struct as_io_context {
-        spinlock_t lock;
-
-        void (*dtor)(struct as_io_context *aic); /* destructor */
-        void (*exit)(struct as_io_context *aic); /* called on task exit */
-
-        unsigned long state;
-        atomic_t nr_queued; /* queued reads & sync writes */
-        atomic_t nr_dispatched; /* number of requests gone to the drivers */
-
-        /* IO History tracking */
-        /* Thinktime */
-        unsigned long last_end_request;
-        unsigned long ttime_total;
-        unsigned long ttime_samples;
-        unsigned long ttime_mean;
-        /* Layout pattern */
-        unsigned int seek_samples;
-        sector_t last_request_pos;
-        u64 seek_total;
-        sector_t seek_mean;
-};
-
 struct cfq_queue;
 struct cfq_io_context {
         void *key;
@@ -78,7 +52,6 @@ struct io_context {
         unsigned long last_waited; /* Time last woken after wait for request */
         int nr_batch_requests;     /* Number of requests left in the batch */
 
-        struct as_io_context *aic;
         struct radix_tree_root radix_root;
         struct hlist_head cic_list;
         void *ioc_data;
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c66b34f75eea..8fa71874113f 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -814,9 +814,14 @@ extern int perf_event_overflow(struct perf_event *event, int nmi,
  */
 static inline int is_software_event(struct perf_event *event)
 {
-        return (event->attr.type != PERF_TYPE_RAW) &&
-                (event->attr.type != PERF_TYPE_HARDWARE) &&
-                (event->attr.type != PERF_TYPE_HW_CACHE);
+        switch (event->attr.type) {
+        case PERF_TYPE_SOFTWARE:
+        case PERF_TYPE_TRACEPOINT:
+        /* for now the breakpoint stuff also works as software event */
+        case PERF_TYPE_BREAKPOINT:
+                return 1;
+        }
+        return 0;
 }
 
 extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
diff --git a/include/linux/topology.h b/include/linux/topology.h
index 57e63579bfdd..5b81156780b1 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -99,7 +99,7 @@ int arch_update_cpu_topology(void);
                                 | 1*SD_WAKE_AFFINE                      \
                                 | 1*SD_SHARE_CPUPOWER                   \
                                 | 0*SD_POWERSAVINGS_BALANCE             \
-                                | 0*SD_SHARE_PKG_RESOURCES              \
+                                | 1*SD_SHARE_PKG_RESOURCES              \
                                 | 0*SD_SERIALIZE                        \
                                 | 0*SD_PREFER_SIBLING                   \
                                 ,                                       \
diff --git a/include/linux/usb.h b/include/linux/usb.h
index e101a2d04d75..d7ace1b80f09 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -192,6 +192,7 @@ struct usb_interface {
         unsigned needs_altsetting0:1;   /* switch to altsetting 0 is pending */
         unsigned needs_binding:1;       /* needs delayed unbind/rebind */
         unsigned reset_running:1;
+        unsigned resetting_device:1;    /* true: bandwidth alloc after reset */
 
         struct device dev;              /* interface specific device info */
         struct device *usb_dev;
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 603c0d8b5df1..d27746bd3a06 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3268,6 +3268,9 @@ static void perf_event_task_output(struct perf_event *event,
 
 static int perf_event_task_match(struct perf_event *event)
 {
+        if (event->state != PERF_EVENT_STATE_ACTIVE)
+                return 0;
+
         if (event->cpu != -1 && event->cpu != smp_processor_id())
                 return 0;
 
@@ -3377,6 +3380,9 @@ static void perf_event_comm_output(struct perf_event *event,
 
 static int perf_event_comm_match(struct perf_event *event)
 {
+        if (event->state != PERF_EVENT_STATE_ACTIVE)
+                return 0;
+
         if (event->cpu != -1 && event->cpu != smp_processor_id())
                 return 0;
 
@@ -3494,6 +3500,9 @@ static void perf_event_mmap_output(struct perf_event *event,
 static int perf_event_mmap_match(struct perf_event *event,
                                    struct perf_mmap_event *mmap_event)
 {
+        if (event->state != PERF_EVENT_STATE_ACTIVE)
+                return 0;
+
         if (event->cpu != -1 && event->cpu != smp_processor_id())
                 return 0;
 
diff --git a/kernel/sched.c b/kernel/sched.c
index c535cc4f6428..4508fe7048be 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5530,8 +5530,11 @@ need_resched_nonpreemptible:
 
         post_schedule(rq);
 
-        if (unlikely(reacquire_kernel_lock(current) < 0))
+        if (unlikely(reacquire_kernel_lock(current) < 0)) {
+                prev = rq->curr;
+                switch_count = &prev->nivcsw;
                 goto need_resched_nonpreemptible;
+        }
 
         preempt_enable_no_resched();
         if (need_resched())
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 42ac3c9f66f6..8fe7ee81c552 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1508,7 +1508,7 @@ static int select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flag
                          * If there's an idle sibling in this domain, make that
                          * the wake_affine target instead of the current cpu.
                          */
-                        if (tmp->flags & SD_PREFER_SIBLING)
+                        if (tmp->flags & SD_SHARE_PKG_RESOURCES)
                                 target = select_idle_sibling(p, tmp, target);
 
                         if (target >= 0) {
diff --git a/kernel/timer.c b/kernel/timer.c
index 15533b792397..c61a7949387f 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1198,6 +1198,7 @@ void update_process_times(int user_tick)
         run_local_timers();
         rcu_check_callbacks(cpu, user_tick);
         printk_tick();
+        perf_event_do_pending();
         scheduler_tick();
         run_posix_cpu_timers(p);
 }
@@ -1209,8 +1210,6 @@ static void run_timer_softirq(struct softirq_action *h)
 {
         struct tvec_base *base = __get_cpu_var(tvec_bases);
 
-        perf_event_do_pending();
-
         hrtimer_run_pending();
 
         if (time_after_eq(jiffies, base->timer_jiffies))
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 37e69295f250..d55d905463eb 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -555,10 +555,8 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end,
         }
         rcu_read_unlock();
 
-        if (nr) {
-                BUG_ON(nr > atomic_read(&vmap_lazy_nr));
+        if (nr)
                 atomic_sub(nr, &vmap_lazy_nr);
-        }
 
         if (nr || force_flush)
                 flush_tlb_kernel_range(*start, *end);
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 7ceb7416c316..93c67bf53d2c 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -375,7 +375,7 @@ static void __print_result(struct rb_root *root, struct perf_session *session,
 
         printf("%.102s\n", graph_dotted_line);
         printf(" %-34s |",  is_caller ? "Callsite": "Alloc Ptr");
-        printf(" Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag\n");
+        printf(" Total_alloc/Per | Total_req/Per   | Hit      | Ping-pong | Frag\n");
         printf("%.102s\n", graph_dotted_line);
 
         next = rb_first(root);
@@ -401,7 +401,7 @@ static void __print_result(struct rb_root *root, struct perf_session *session,
                         snprintf(buf, sizeof(buf), "%#Lx", addr);
                 printf(" %-34s |", buf);
 
-                printf(" %9llu/%-5lu | %9llu/%-5lu | %6lu | %8lu | %6.3f%%\n",
+                printf(" %9llu/%-5lu | %9llu/%-5lu | %8lu | %8lu | %6.3f%%\n",
                        (unsigned long long)data->bytes_alloc,
                        (unsigned long)data->bytes_alloc / data->hit,
                        (unsigned long long)data->bytes_req,
@@ -784,7 +784,8 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __used)
                         setup_sorting(&alloc_sort, default_sort_order);
 
                 return __cmd_kmem();
-        }
+        } else
+                usage_with_options(kmem_usage, kmem_options);
 
         return 0;
 }
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index a589a43112d6..3f8bbcfb1e9b 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -280,7 +280,7 @@ static u64 cpus_pstate_state[MAX_CPUS];
 
 static int process_comm_event(event_t *event, struct perf_session *session __used)
 {
-        pid_set_comm(event->comm.pid, event->comm.comm);
+        pid_set_comm(event->comm.tid, event->comm.comm);
         return 0;
 }