Merge ../linux-2.6

12 files changed, 99 insertions, 105 deletions

diff --git a/include/asm-arm/arch-pnx4008/irqs.h b/include/asm-arm/arch-pnx4008/irqs.h
index 13ec7ed0f501..a25d18f2d87a 100644
--- a/include/asm-arm/arch-pnx4008/irqs.h
+++ b/include/asm-arm/arch-pnx4008/irqs.h
@@ -135,30 +135,30 @@
 
 #define PNX4008_IRQ_TYPES \
 {                                           /*IRQ #'s: */         \
-IRQT_LOW,  IRQT_LOW,  IRQT_LOW,  IRQT_HIGH, /*  0, 1, 2, 3 */     \
-IRQT_LOW,  IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /*  4, 5, 6, 7 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /*  8, 9,10,11 */     \
-IRQT_LOW,  IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 12,13,14,15 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 16,17,18,19 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 20,21,22,23 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 24,25,26,27 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_LOW,  IRQT_LOW,  /* 28,29,30,31 */     \
-IRQT_HIGH, IRQT_LOW,  IRQT_HIGH, IRQT_HIGH, /* 32,33,34,35 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_FALLING, IRQT_HIGH, /* 36,37,38,39 */  \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 40,41,42,43 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 44,45,46,47 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_LOW,  IRQT_LOW,  /* 48,49,50,51 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 52,53,54,55 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_LOW,  IRQT_HIGH, /* 56,57,58,59 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 60,61,62,63 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 64,65,66,67 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 68,69,70,71 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 72,73,74,75 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 76,77,78,79 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 80,81,82,83 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 84,85,86,87 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 88,89,90,91 */     \
-IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, IRQT_HIGH, /* 92,93,94,95 */     \
+IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_HIGH, /*  0, 1, 2, 3 */     \
+IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /*  4, 5, 6, 7 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /*  8, 9,10,11 */     \
+IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 12,13,14,15 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 16,17,18,19 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 20,21,22,23 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 24,25,26,27 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_LOW,  /* 28,29,30,31 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 32,33,34,35 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_FALLING, IRQ_TYPE_LEVEL_HIGH, /* 36,37,38,39 */  \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 40,41,42,43 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 44,45,46,47 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_LOW,  /* 48,49,50,51 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 52,53,54,55 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_LOW,  IRQ_TYPE_LEVEL_HIGH, /* 56,57,58,59 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 60,61,62,63 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 64,65,66,67 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 68,69,70,71 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 72,73,74,75 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 76,77,78,79 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 80,81,82,83 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 84,85,86,87 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 88,89,90,91 */     \
+IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_HIGH, /* 92,93,94,95 */     \
 }
 
 /* Start Enable Pin Interrupts - table 58 page 66 */
diff --git a/include/asm-arm/arch-pxa/idp.h b/include/asm-arm/arch-pxa/idp.h
index b6952534a4e1..21aa8ac35c1c 100644
--- a/include/asm-arm/arch-pxa/idp.h
+++ b/include/asm-arm/arch-pxa/idp.h
@@ -138,18 +138,18 @@
 #define TOUCH_PANEL_IRQ                 IRQ_GPIO(5)
 #define IDE_IRQ                         IRQ_GPIO(21)
 
-#define TOUCH_PANEL_IRQ_EDGE            IRQT_FALLING
+#define TOUCH_PANEL_IRQ_EDGE            IRQ_TYPE_EDGE_FALLING
 
 #define ETHERNET_IRQ                    IRQ_GPIO(4)
-#define ETHERNET_IRQ_EDGE               IRQT_RISING
+#define ETHERNET_IRQ_EDGE               IRQ_TYPE_EDGE_RISING
 
-#define IDE_IRQ_EDGE                    IRQT_RISING
+#define IDE_IRQ_EDGE                    IRQ_TYPE_EDGE_RISING
 
 #define PCMCIA_S0_CD_VALID              IRQ_GPIO(7)
-#define PCMCIA_S0_CD_VALID_EDGE         IRQT_BOTHEDGE
+#define PCMCIA_S0_CD_VALID_EDGE         IRQ_TYPE_EDGE_BOTH
 
 #define PCMCIA_S1_CD_VALID              IRQ_GPIO(8)
-#define PCMCIA_S1_CD_VALID_EDGE         IRQT_BOTHEDGE
+#define PCMCIA_S1_CD_VALID_EDGE         IRQ_TYPE_EDGE_BOTH
 
 #define PCMCIA_S0_RDYINT                IRQ_GPIO(19)
 #define PCMCIA_S1_RDYINT                IRQ_GPIO(22)
diff --git a/include/asm-arm/arch-pxa/pcm990_baseboard.h b/include/asm-arm/arch-pxa/pcm990_baseboard.h
index b699d0d7bdb2..2e2013179063 100644
--- a/include/asm-arm/arch-pxa/pcm990_baseboard.h
+++ b/include/asm-arm/arch-pxa/pcm990_baseboard.h
@@ -29,14 +29,14 @@
 /* CPLD's interrupt controller is connected to PCM-027 GPIO 9 */
 #define PCM990_CTRL_INT_IRQ_GPIO        9
 #define PCM990_CTRL_INT_IRQ             IRQ_GPIO(PCM990_CTRL_INT_IRQ_GPIO)
-#define PCM990_CTRL_INT_IRQ_EDGE        IRQT_RISING
+#define PCM990_CTRL_INT_IRQ_EDGE        IRQ_TYPE_EDGE_RISING
 #define PCM990_CTRL_PHYS                PXA_CS1_PHYS    /* 16-Bit */
 #define PCM990_CTRL_BASE                0xea000000
 #define PCM990_CTRL_SIZE                (1*1024*1024)
 
 #define PCM990_CTRL_PWR_IRQ_GPIO        14
 #define PCM990_CTRL_PWR_IRQ             IRQ_GPIO(PCM990_CTRL_PWR_IRQ_GPIO)
-#define PCM990_CTRL_PWR_IRQ_EDGE        IRQT_RISING
+#define PCM990_CTRL_PWR_IRQ_EDGE        IRQ_TYPE_EDGE_RISING
 
 /* visible CPLD (U7) registers */
 #define PCM990_CTRL_REG0        0x0000  /* RESET REGISTER */
@@ -133,7 +133,7 @@
  */
 #define PCM990_IDE_IRQ_GPIO     13
 #define PCM990_IDE_IRQ          IRQ_GPIO(PCM990_IDE_IRQ_GPIO)
-#define PCM990_IDE_IRQ_EDGE     IRQT_RISING
+#define PCM990_IDE_IRQ_EDGE     IRQ_TYPE_EDGE_RISING
 #define PCM990_IDE_PLD_PHYS     0x20000000      /* 16 bit wide */
 #define PCM990_IDE_PLD_BASE     0xee000000
 #define PCM990_IDE_PLD_SIZE     (1*1024*1024)
@@ -189,11 +189,11 @@
  */
 #define PCM990_CF_IRQ_GPIO      11
 #define PCM990_CF_IRQ           IRQ_GPIO(PCM990_CF_IRQ_GPIO)
-#define PCM990_CF_IRQ_EDGE      IRQT_RISING
+#define PCM990_CF_IRQ_EDGE      IRQ_TYPE_EDGE_RISING
 
 #define PCM990_CF_CD_GPIO       12
 #define PCM990_CF_CD            IRQ_GPIO(PCM990_CF_CD_GPIO)
-#define PCM990_CF_CD_EDGE       IRQT_RISING
+#define PCM990_CF_CD_EDGE       IRQ_TYPE_EDGE_RISING
 
 #define PCM990_CF_PLD_PHYS      0x30000000      /* 16 bit wide */
 #define PCM990_CF_PLD_BASE      0xef000000
@@ -259,14 +259,14 @@
  */
 #define PCM990_AC97_IRQ_GPIO    10
 #define PCM990_AC97_IRQ         IRQ_GPIO(PCM990_AC97_IRQ_GPIO)
-#define PCM990_AC97_IRQ_EDGE    IRQT_RISING
+#define PCM990_AC97_IRQ_EDGE    IRQ_TYPE_EDGE_RISING
 
 /*
  * MMC phyCORE
  */
 #define PCM990_MMC0_IRQ_GPIO    9
 #define PCM990_MMC0_IRQ         IRQ_GPIO(PCM990_MMC0_IRQ_GPIO)
-#define PCM990_MMC0_IRQ_EDGE    IRQT_FALLING
+#define PCM990_MMC0_IRQ_EDGE    IRQ_TYPE_EDGE_FALLING
 
 /*
  * USB phyCore
diff --git a/include/asm-arm/arch-pxa/pxa25x-udc.h b/include/asm-arm/arch-pxa/pxa25x-udc.h
index 840305916b6d..1b80a4805a60 100644
--- a/include/asm-arm/arch-pxa/pxa25x-udc.h
+++ b/include/asm-arm/arch-pxa/pxa25x-udc.h
@@ -2,7 +2,7 @@
 #define _ASM_ARCH_PXA25X_UDC_H
 
 #ifdef _ASM_ARCH_PXA27X_UDC_H
-#error You can't include both PXA25x and PXA27x UDC support
+#error "You can't include both PXA25x and PXA27x UDC support"
 #endif
 
 #define UDC_RES1        __REG(0x40600004)  /* UDC Undocumented - Reserved1 */
diff --git a/include/asm-arm/arch-sa1100/ide.h b/include/asm-arm/arch-sa1100/ide.h
index b14cbda01dc3..193f6c15f4dd 100644
--- a/include/asm-arm/arch-sa1100/ide.h
+++ b/include/asm-arm/arch-sa1100/ide.h
@@ -61,7 +61,7 @@ ide_init_default_hwifs(void)
 
         /* Enable GPIO as interrupt line */
         GPDR &= ~LART_GPIO_IDE;
-        set_irq_type(LART_IRQ_IDE, IRQT_RISING);
+        set_irq_type(LART_IRQ_IDE, IRQ_TYPE_EDGE_RISING);
 
         /* set PCMCIA interface timing */
         MECR = 0x00060006;
diff --git a/include/asm-arm/bitops.h b/include/asm-arm/bitops.h
index 5c60bfc1a84d..9a1db20e032a 100644
--- a/include/asm-arm/bitops.h
+++ b/include/asm-arm/bitops.h
@@ -277,9 +277,16 @@ static inline int constant_fls(int x)
  * the clz instruction for much better code efficiency.
  */
 
-#define fls(x) \
+#define __fls(x) \
         ( __builtin_constant_p(x) ? constant_fls(x) : \
           ({ int __r; asm("clz\t%0, %1" : "=r"(__r) : "r"(x) : "cc"); 32-__r; }) )
+
+/* Implement fls() in C so that 64-bit args are suitably truncated */
+static inline int fls(int x)
+{
+        return __fls(x);
+}
+
 #define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
 #define __ffs(x) (ffs(x) - 1)
 #define ffz(x) __ffs( ~(x) )
diff --git a/include/asm-arm/cacheflush.h b/include/asm-arm/cacheflush.h
index 03cf1ee977b7..e68a1cbcc852 100644
--- a/include/asm-arm/cacheflush.h
+++ b/include/asm-arm/cacheflush.h
@@ -459,15 +459,19 @@ static inline void flush_ioremap_region(unsigned long phys, void __iomem *virt,
 #define __cacheid_vivt_asid_tagged_instr(val)   (__cacheid_type_v7(val) ? ((val & (3 << 14)) == (1 << 14)) : 0)
 
 #if defined(CONFIG_CPU_CACHE_VIVT) && !defined(CONFIG_CPU_CACHE_VIPT)
-
+/*
+ * VIVT caches only
+ */
 #define cache_is_vivt()                 1
 #define cache_is_vipt()                 0
 #define cache_is_vipt_nonaliasing()     0
 #define cache_is_vipt_aliasing()        0
 #define icache_is_vivt_asid_tagged()    0
 
-#elif defined(CONFIG_CPU_CACHE_VIPT)
-
+#elif !defined(CONFIG_CPU_CACHE_VIVT) && defined(CONFIG_CPU_CACHE_VIPT)
+/*
+ * VIPT caches only
+ */
 #define cache_is_vivt()                 0
 #define cache_is_vipt()                 1
 #define cache_is_vipt_nonaliasing()                                     \
@@ -489,7 +493,12 @@ static inline void flush_ioremap_region(unsigned long phys, void __iomem *virt,
         })
 
 #else
-
+/*
+ * VIVT or VIPT caches.  Note that this is unreliable since ARM926
+ * and V6 CPUs satisfy the "(val & (15 << 25)) == (14 << 25)" test.
+ * There's no way to tell from the CacheType register what type (!)
+ * the cache is.
+ */
 #define cache_is_vivt()                                                 \
         ({                                                              \
                 unsigned int __val = read_cpuid(CPUID_CACHETYPE);       \
diff --git a/include/asm-arm/irq.h b/include/asm-arm/irq.h
index 1b882a255e35..9cb01907e43b 100644
--- a/include/asm-arm/irq.h
+++ b/include/asm-arm/irq.h
@@ -19,23 +19,6 @@
 #define NO_IRQ  ((unsigned int)(-1))
 #endif
 
-
-/*
- * Migration helpers
- */
-#define __IRQT_FALEDGE  IRQ_TYPE_EDGE_FALLING
-#define __IRQT_RISEDGE  IRQ_TYPE_EDGE_RISING
-#define __IRQT_LOWLVL   IRQ_TYPE_LEVEL_LOW
-#define __IRQT_HIGHLVL  IRQ_TYPE_LEVEL_HIGH
-
-#define IRQT_NOEDGE     (0)
-#define IRQT_RISING     (__IRQT_RISEDGE)
-#define IRQT_FALLING    (__IRQT_FALEDGE)
-#define IRQT_BOTHEDGE   (__IRQT_RISEDGE|__IRQT_FALEDGE)
-#define IRQT_LOW        (__IRQT_LOWLVL)
-#define IRQT_HIGH       (__IRQT_HIGHLVL)
-#define IRQT_PROBE      IRQ_TYPE_PROBE
-
 #ifndef __ASSEMBLY__
 struct irqaction;
 extern void migrate_irqs(void);
diff --git a/include/asm-arm/pci.h b/include/asm-arm/pci.h
index 75feb1574a69..2d84792f2e12 100644
--- a/include/asm-arm/pci.h
+++ b/include/asm-arm/pci.h
@@ -78,6 +78,14 @@ pcibios_select_root(struct pci_dev *pdev, struct resource *res)
         return root;
 }
 
+/*
+ * Dummy implementation; always return 0.
+ */
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+        return 0;
+}
+
 #endif /* __KERNEL__ */
  
 #endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 034c1ca6b332..5270d449ff9d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -505,7 +505,7 @@ struct signal_struct {
         unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
         unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
         unsigned long inblock, oublock, cinblock, coublock;
-        struct proc_io_accounting ioac;
+        struct task_io_accounting ioac;
 
         /*
          * Cumulative ns of scheduled CPU time for dead threads in the
@@ -1253,7 +1253,7 @@ struct task_struct {
 
         unsigned long ptrace_message;
         siginfo_t *last_siginfo; /* For ptrace use.  */
-        struct proc_io_accounting ioac;
+        struct task_io_accounting ioac;
 #if defined(CONFIG_TASK_XACCT)
         u64 acct_rss_mem1;      /* accumulated rss usage */
         u64 acct_vm_mem1;       /* accumulated virtual memory usage */
@@ -2183,22 +2183,22 @@ extern long sched_group_rt_period(struct task_group *tg);
 #ifdef CONFIG_TASK_XACCT
 static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
 {
-        tsk->ioac.chr.rchar += amt;
+        tsk->ioac.rchar += amt;
 }
 
 static inline void add_wchar(struct task_struct *tsk, ssize_t amt)
 {
-        tsk->ioac.chr.wchar += amt;
+        tsk->ioac.wchar += amt;
 }
 
 static inline void inc_syscr(struct task_struct *tsk)
 {
-        tsk->ioac.chr.syscr++;
+        tsk->ioac.syscr++;
 }
 
 static inline void inc_syscw(struct task_struct *tsk)
 {
-        tsk->ioac.chr.syscw++;
+        tsk->ioac.syscw++;
 }
 #else
 static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
diff --git a/include/linux/task_io_accounting.h b/include/linux/task_io_accounting.h
index 165390f8b936..5e88afc9a2fb 100644
--- a/include/linux/task_io_accounting.h
+++ b/include/linux/task_io_accounting.h
@@ -1,5 +1,5 @@
 /*
- * proc_io_accounting: a structure which is used for recording a single task's
+ * task_io_accounting: a structure which is used for recording a single task's
  * IO statistics.
  *
  * Don't include this header file directly - it is designed to be dragged in via
@@ -8,8 +8,8 @@
  * Blame akpm@osdl.org for all this.
  */
 
+struct task_io_accounting {
 #ifdef CONFIG_TASK_XACCT
-struct task_chr_io_accounting {
         /* bytes read */
         u64 rchar;
         /*  bytes written */
@@ -18,14 +18,9 @@ struct task_chr_io_accounting {
         u64 syscr;
         /* # of write syscalls */
         u64 syscw;
-};
-#else /* CONFIG_TASK_XACCT */
-struct task_chr_io_accounting {
-};
 #endif /* CONFIG_TASK_XACCT */
 
 #ifdef CONFIG_TASK_IO_ACCOUNTING
-struct task_io_accounting {
         /*
          * The number of bytes which this task has caused to be read from
          * storage.
@@ -46,13 +41,5 @@ struct task_io_accounting {
          * information loss in doing that.
          */
         u64 cancelled_write_bytes;
-};
-#else /* CONFIG_TASK_IO_ACCOUNTING */
-struct task_io_accounting {
-};
 #endif /* CONFIG_TASK_IO_ACCOUNTING */
-
-struct proc_io_accounting {
-        struct task_chr_io_accounting chr;
-        struct task_io_accounting blk;
 };
diff --git a/include/linux/task_io_accounting_ops.h b/include/linux/task_io_accounting_ops.h
index e6f958ebe97f..4d090f9ee608 100644
--- a/include/linux/task_io_accounting_ops.h
+++ b/include/linux/task_io_accounting_ops.h
@@ -9,7 +9,7 @@
 #ifdef CONFIG_TASK_IO_ACCOUNTING
 static inline void task_io_account_read(size_t bytes)
 {
-        current->ioac.blk.read_bytes += bytes;
+        current->ioac.read_bytes += bytes;
 }
 
 /*
@@ -18,12 +18,12 @@ static inline void task_io_account_read(size_t bytes)
  */
 static inline unsigned long task_io_get_inblock(const struct task_struct *p)
 {
-        return p->ioac.blk.read_bytes >> 9;
+        return p->ioac.read_bytes >> 9;
 }
 
 static inline void task_io_account_write(size_t bytes)
 {
-        current->ioac.blk.write_bytes += bytes;
+        current->ioac.write_bytes += bytes;
 }
 
 /*
@@ -32,25 +32,25 @@ static inline void task_io_account_write(size_t bytes)
  */
 static inline unsigned long task_io_get_oublock(const struct task_struct *p)
 {
-        return p->ioac.blk.write_bytes >> 9;
+        return p->ioac.write_bytes >> 9;
 }
 
 static inline void task_io_account_cancelled_write(size_t bytes)
 {
-        current->ioac.blk.cancelled_write_bytes += bytes;
+        current->ioac.cancelled_write_bytes += bytes;
 }
 
-static inline void task_io_accounting_init(struct proc_io_accounting *ioac)
+static inline void task_io_accounting_init(struct task_io_accounting *ioac)
 {
         memset(ioac, 0, sizeof(*ioac));
 }
 
-static inline void task_blk_io_accounting_add(struct proc_io_accounting *dst,
-                                                struct proc_io_accounting *src)
+static inline void task_blk_io_accounting_add(struct task_io_accounting *dst,
+                                                struct task_io_accounting *src)
 {
-        dst->blk.read_bytes += src->blk.read_bytes;
-        dst->blk.write_bytes += src->blk.write_bytes;
-        dst->blk.cancelled_write_bytes += src->blk.cancelled_write_bytes;
+        dst->read_bytes += src->read_bytes;
+        dst->write_bytes += src->write_bytes;
+        dst->cancelled_write_bytes += src->cancelled_write_bytes;
 }
 
 #else
@@ -77,35 +77,35 @@ static inline void task_io_account_cancelled_write(size_t bytes)
 {
 }
 
-static inline void task_io_accounting_init(struct proc_io_accounting *ioac)
+static inline void task_io_accounting_init(struct task_io_accounting *ioac)
 {
 }
 
-static inline void task_blk_io_accounting_add(struct proc_io_accounting *dst,
-                                                struct proc_io_accounting *src)
+static inline void task_blk_io_accounting_add(struct task_io_accounting *dst,
+                                                struct task_io_accounting *src)
 {
 }
 
 #endif /* CONFIG_TASK_IO_ACCOUNTING */
 
 #ifdef CONFIG_TASK_XACCT
-static inline void task_chr_io_accounting_add(struct proc_io_accounting *dst,
-                                                struct proc_io_accounting *src)
+static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
+                                                struct task_io_accounting *src)
 {
-        dst->chr.rchar += src->chr.rchar;
-        dst->chr.wchar += src->chr.wchar;
-        dst->chr.syscr += src->chr.syscr;
-        dst->chr.syscw += src->chr.syscw;
+        dst->rchar += src->rchar;
+        dst->wchar += src->wchar;
+        dst->syscr += src->syscr;
+        dst->syscw += src->syscw;
 }
 #else
-static inline void task_chr_io_accounting_add(struct proc_io_accounting *dst,
-                                                struct proc_io_accounting *src)
+static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
+                                                struct task_io_accounting *src)
 {
 }
 #endif /* CONFIG_TASK_XACCT */
 
-static inline void task_io_accounting_add(struct proc_io_accounting *dst,
-                                                struct proc_io_accounting *src)
+static inline void task_io_accounting_add(struct task_io_accounting *dst,
+                                                struct task_io_accounting *src)
 {
         task_chr_io_accounting_add(dst, src);
         task_blk_io_accounting_add(dst, src);