41 files changed, 271 insertions, 153 deletions

diff --git a/arch/x86/include/asm/ce4100.h b/arch/x86/include/asm/ce4100.h
new file mode 100644
index 000000000000..e656ad8c0a2e
--- /dev/null
+++ b/arch/x86/include/asm/ce4100.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_CE4100_H_
+#define _ASM_CE4100_H_
+
+int ce4100_pci_init(void);
+
+#endif
diff --git a/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 13a389179514..452932d34730 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -106,8 +106,8 @@ void __init setup_bios_corruption_check(void)
                 addr += size;
         }
 
-        printk(KERN_INFO "Scanning %d areas for low memory corruption\n",
-               num_scan_areas);
+        if (num_scan_areas)
+                printk(KERN_INFO "Scanning %d areas for low memory corruption\n", num_scan_areas);
 }
 
 
@@ -143,12 +143,12 @@ static void check_corruption(struct work_struct *dummy)
 {
         check_for_bios_corruption();
         schedule_delayed_work(&bios_check_work,
-                round_jiffies_relative(corruption_check_period*HZ)); 
+                round_jiffies_relative(corruption_check_period*HZ));
 }
 
 static int start_periodic_check_for_corruption(void)
 {
-        if (!memory_corruption_check || corruption_check_period == 0)
+        if (!num_scan_areas || !memory_corruption_check || corruption_check_period == 0)
                 return 0;
 
         printk(KERN_INFO "Scanning for low memory corruption every %d seconds\n",
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 7d90ceb882a4..20e3f8702d1e 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -229,15 +229,14 @@ void vmalloc_sync_all(void)
         for (address = VMALLOC_START & PMD_MASK;
              address >= TASK_SIZE && address < FIXADDR_TOP;
              address += PMD_SIZE) {
-
-                unsigned long flags;
                 struct page *page;
 
-                spin_lock_irqsave(&pgd_lock, flags);
+                spin_lock(&pgd_lock);
                 list_for_each_entry(page, &pgd_list, lru) {
                         spinlock_t *pgt_lock;
                         pmd_t *ret;
 
+                        /* the pgt_lock only for Xen */
                         pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
 
                         spin_lock(pgt_lock);
@@ -247,7 +246,7 @@ void vmalloc_sync_all(void)
                         if (!ret)
                                 break;
                 }
-                spin_unlock_irqrestore(&pgd_lock, flags);
+                spin_unlock(&pgd_lock);
         }
 }
 
@@ -828,6 +827,13 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
                unsigned long address, unsigned int fault)
 {
         if (fault & VM_FAULT_OOM) {
+                /* Kernel mode? Handle exceptions or die: */
+                if (!(error_code & PF_USER)) {
+                        up_read(&current->mm->mmap_sem);
+                        no_context(regs, error_code, address);
+                        return;
+                }
+
                 out_of_memory(regs, error_code, address);
         } else {
                 if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 71a59296af80..c14a5422e152 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -105,18 +105,18 @@ void sync_global_pgds(unsigned long start, unsigned long end)
 
         for (address = start; address <= end; address += PGDIR_SIZE) {
                 const pgd_t *pgd_ref = pgd_offset_k(address);
-                unsigned long flags;
                 struct page *page;
 
                 if (pgd_none(*pgd_ref))
                         continue;
 
-                spin_lock_irqsave(&pgd_lock, flags);
+                spin_lock(&pgd_lock);
                 list_for_each_entry(page, &pgd_list, lru) {
                         pgd_t *pgd;
                         spinlock_t *pgt_lock;
 
                         pgd = (pgd_t *)page_address(page) + pgd_index(address);
+                        /* the pgt_lock only for Xen */
                         pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
                         spin_lock(pgt_lock);
 
@@ -128,7 +128,7 @@ void sync_global_pgds(unsigned long start, unsigned long end)
 
                         spin_unlock(pgt_lock);
                 }
-                spin_unlock_irqrestore(&pgd_lock, flags);
+                spin_unlock(&pgd_lock);
         }
 }
 
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index d343b3c81f3c..90825f2eb0f4 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -57,12 +57,10 @@ static unsigned long direct_pages_count[PG_LEVEL_NUM];
 
 void update_page_count(int level, unsigned long pages)
 {
-        unsigned long flags;
-
         /* Protect against CPA */
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock(&pgd_lock);
         direct_pages_count[level] += pages;
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock(&pgd_lock);
 }
 
 static void split_page_count(int level)
@@ -394,7 +392,7 @@ static int
 try_preserve_large_page(pte_t *kpte, unsigned long address,
                         struct cpa_data *cpa)
 {
-        unsigned long nextpage_addr, numpages, pmask, psize, flags, addr, pfn;
+        unsigned long nextpage_addr, numpages, pmask, psize, addr, pfn;
         pte_t new_pte, old_pte, *tmp;
         pgprot_t old_prot, new_prot, req_prot;
         int i, do_split = 1;
@@ -403,7 +401,7 @@ try_preserve_large_page(pte_t *kpte, unsigned long address,
         if (cpa->force_split)
                 return 1;
 
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock(&pgd_lock);
         /*
          * Check for races, another CPU might have split this page
          * up already:
@@ -498,14 +496,14 @@ try_preserve_large_page(pte_t *kpte, unsigned long address,
         }
 
 out_unlock:
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock(&pgd_lock);
 
         return do_split;
 }
 
 static int split_large_page(pte_t *kpte, unsigned long address)
 {
-        unsigned long flags, pfn, pfninc = 1;
+        unsigned long pfn, pfninc = 1;
         unsigned int i, level;
         pte_t *pbase, *tmp;
         pgprot_t ref_prot;
@@ -519,7 +517,7 @@ static int split_large_page(pte_t *kpte, unsigned long address)
         if (!base)
                 return -ENOMEM;
 
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock(&pgd_lock);
         /*
          * Check for races, another CPU might have split this page
          * up for us already:
@@ -591,7 +589,7 @@ out_unlock:
          */
         if (base)
                 __free_page(base);
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock(&pgd_lock);
 
         return 0;
 }
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 500242d3c96d..0113d19c8aa6 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -121,14 +121,12 @@ static void pgd_ctor(struct mm_struct *mm, pgd_t *pgd)
 
 static void pgd_dtor(pgd_t *pgd)
 {
-        unsigned long flags; /* can be called from interrupt context */
-
         if (SHARED_KERNEL_PMD)
                 return;
 
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock(&pgd_lock);
         pgd_list_del(pgd);
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock(&pgd_lock);
 }
 
 /*
@@ -260,7 +258,6 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 {
         pgd_t *pgd;
         pmd_t *pmds[PREALLOCATED_PMDS];
-        unsigned long flags;
 
         pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
 
@@ -280,12 +277,12 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
          * respect to anything walking the pgd_list, so that they
          * never see a partially populated pgd.
          */
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock(&pgd_lock);
 
         pgd_ctor(mm, pgd);
         pgd_prepopulate_pmd(mm, pgd, pmds);
 
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock(&pgd_lock);
 
         return pgd;
 
diff --git a/arch/x86/pci/ce4100.c b/arch/x86/pci/ce4100.c
index 85b68ef5e809..9260b3eb18d4 100644
--- a/arch/x86/pci/ce4100.c
+++ b/arch/x86/pci/ce4100.c
@@ -34,6 +34,7 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 
+#include <asm/ce4100.h>
 #include <asm/pci_x86.h>
 
 struct sim_reg {
@@ -306,10 +307,10 @@ struct pci_raw_ops ce4100_pci_conf = {
         .write = ce4100_conf_write,
 };
 
-static int __init ce4100_pci_init(void)
+int __init ce4100_pci_init(void)
 {
         init_sim_regs();
         raw_pci_ops = &ce4100_pci_conf;
-        return 0;
+        /* Indicate caller that it should invoke pci_legacy_init() */
+        return 1;
 }
-subsys_initcall(ce4100_pci_init);
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index d2c0d51a7178..cd6f184c3b3f 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -15,6 +15,7 @@
 #include <linux/serial_reg.h>
 #include <linux/serial_8250.h>
 
+#include <asm/ce4100.h>
 #include <asm/setup.h>
 #include <asm/io.h>
 
@@ -129,4 +130,5 @@ void __init x86_ce4100_early_setup(void)
         x86_init.resources.probe_roms = x86_init_noop;
         x86_init.mpparse.get_smp_config = x86_init_uint_noop;
         x86_init.mpparse.find_smp_config = sdv_find_smp_config;
+        x86_init.pci.init = ce4100_pci_init;
 }
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 5e92b61ad574..f6089421147a 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -986,10 +986,9 @@ static void xen_pgd_pin(struct mm_struct *mm)
  */
 void xen_mm_pin_all(void)
 {
-        unsigned long flags;
         struct page *page;
 
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock(&pgd_lock);
 
         list_for_each_entry(page, &pgd_list, lru) {
                 if (!PagePinned(page)) {
@@ -998,7 +997,7 @@ void xen_mm_pin_all(void)
                 }
         }
 
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock(&pgd_lock);
 }
 
 /*
@@ -1099,10 +1098,9 @@ static void xen_pgd_unpin(struct mm_struct *mm)
  */
 void xen_mm_unpin_all(void)
 {
-        unsigned long flags;
         struct page *page;
 
-        spin_lock_irqsave(&pgd_lock, flags);
+        spin_lock(&pgd_lock);
 
         list_for_each_entry(page, &pgd_list, lru) {
                 if (PageSavePinned(page)) {
@@ -1112,7 +1110,7 @@ void xen_mm_unpin_all(void)
                 }
         }
 
-        spin_unlock_irqrestore(&pgd_lock, flags);
+        spin_unlock(&pgd_lock);
 }
 
 void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index d270b3ff896b..6140ea1de45a 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2194,7 +2194,6 @@ int evergreen_mc_init(struct radeon_device *rdev)
                 rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
         }
         rdev->mc.visible_vram_size = rdev->mc.aper_size;
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
         r700_vram_gtt_location(rdev, &rdev->mc);
         radeon_update_bandwidth_info(rdev);
 
@@ -2934,7 +2933,7 @@ static int evergreen_startup(struct radeon_device *rdev)
         /* XXX: ontario has problems blitting to gart at the moment */
         if (rdev->family == CHIP_PALM) {
                 rdev->asic->copy = NULL;
-                rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
+                radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
         }
 
         /* allocate wb buffer */
diff --git a/drivers/gpu/drm/radeon/evergreen_blit_kms.c b/drivers/gpu/drm/radeon/evergreen_blit_kms.c
index 2adfb03f479b..2be698e78ff2 100644
--- a/drivers/gpu/drm/radeon/evergreen_blit_kms.c
+++ b/drivers/gpu/drm/radeon/evergreen_blit_kms.c
@@ -623,7 +623,7 @@ done:
                 dev_err(rdev->dev, "(%d) pin blit object failed\n", r);
                 return r;
         }
-        rdev->mc.active_vram_size = rdev->mc.real_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
         return 0;
 }
 
@@ -631,7 +631,7 @@ void evergreen_blit_fini(struct radeon_device *rdev)
 {
         int r;
 
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
         if (rdev->r600_blit.shader_obj == NULL)
                 return;
         /* If we can't reserve the bo, unref should be enough to destroy
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 79de991e1ea3..e372f9e1e5ce 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1024,7 +1024,7 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
                 return r;
         }
         rdev->cp.ready = true;
-        rdev->mc.active_vram_size = rdev->mc.real_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
         return 0;
 }
 
@@ -1042,7 +1042,7 @@ void r100_cp_fini(struct radeon_device *rdev)
 void r100_cp_disable(struct radeon_device *rdev)
 {
         /* Disable ring */
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
         rdev->cp.ready = false;
         WREG32(RADEON_CP_CSQ_MODE, 0);
         WREG32(RADEON_CP_CSQ_CNTL, 0);
@@ -2312,7 +2312,6 @@ void r100_vram_init_sizes(struct radeon_device *rdev)
         /* FIXME we don't use the second aperture yet when we could use it */
         if (rdev->mc.visible_vram_size > rdev->mc.aper_size)
                 rdev->mc.visible_vram_size = rdev->mc.aper_size;
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
         config_aper_size = RREG32(RADEON_CONFIG_APER_SIZE);
         if (rdev->flags & RADEON_IS_IGP) {
                 uint32_t tom;
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index de88624d5f87..9b3fad23b76c 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1255,7 +1255,6 @@ int r600_mc_init(struct radeon_device *rdev)
         rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
         rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
         rdev->mc.visible_vram_size = rdev->mc.aper_size;
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
         r600_vram_gtt_location(rdev, &rdev->mc);
 
         if (rdev->flags & RADEON_IS_IGP) {
@@ -1937,7 +1936,7 @@ void r600_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v)
  */
 void r600_cp_stop(struct radeon_device *rdev)
 {
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
         WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
         WREG32(SCRATCH_UMSK, 0);
 }
diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c
index 41f7aafc97c4..df68d91e8190 100644
--- a/drivers/gpu/drm/radeon/r600_blit_kms.c
+++ b/drivers/gpu/drm/radeon/r600_blit_kms.c
@@ -558,7 +558,7 @@ done:
                 dev_err(rdev->dev, "(%d) pin blit object failed\n", r);
                 return r;
         }
-        rdev->mc.active_vram_size = rdev->mc.real_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
         return 0;
 }
 
@@ -566,7 +566,7 @@ void r600_blit_fini(struct radeon_device *rdev)
 {
         int r;
 
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
         if (rdev->r600_blit.shader_obj == NULL)
                 return;
         /* If we can't reserve the bo, unref should be enough to destroy
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 56c48b67ef3d..6b3429495118 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -345,7 +345,6 @@ struct radeon_mc {
          * about vram size near mc fb location */
         u64                     mc_vram_size;
         u64                     visible_vram_size;
-        u64                     active_vram_size;
         u64                     gtt_size;
         u64                     gtt_start;
         u64                     gtt_end;
@@ -1448,6 +1447,7 @@ extern void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *m
 extern void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc);
 extern int radeon_resume_kms(struct drm_device *dev);
 extern int radeon_suspend_kms(struct drm_device *dev, pm_message_t state);
+extern void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size);
 
 /* r600, rv610, rv630, rv620, rv635, rv670, rs780, rs880 */
 extern bool r600_card_posted(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index df95eb83dac6..1fe95dfe48c9 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -156,9 +156,12 @@ int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
 {
         struct radeon_device *rdev = dev->dev_private;
         struct drm_radeon_gem_info *args = data;
+        struct ttm_mem_type_manager *man;
+
+        man = &rdev->mman.bdev.man[TTM_PL_VRAM];
 
         args->vram_size = rdev->mc.real_vram_size;
-        args->vram_visible = rdev->mc.real_vram_size;
+        args->vram_visible = (u64)man->size << PAGE_SHIFT;
         if (rdev->stollen_vga_memory)
                 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
         args->vram_visible -= radeon_fbdev_total_size(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index e5b2cf10cbf4..8389b4c63d12 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -589,6 +589,20 @@ void radeon_ttm_fini(struct radeon_device *rdev)
         DRM_INFO("radeon: ttm finalized\n");
 }
 
+/* this should only be called at bootup or when userspace
+ * isn't running */
+void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
+{
+        struct ttm_mem_type_manager *man;
+
+        if (!rdev->mman.initialized)
+                return;
+
+        man = &rdev->mman.bdev.man[TTM_PL_VRAM];
+        /* this just adjusts TTM size idea, which sets lpfn to the correct value */
+        man->size = size >> PAGE_SHIFT;
+}
+
 static struct vm_operations_struct radeon_ttm_vm_ops;
 static const struct vm_operations_struct *ttm_vm_ops = NULL;
 
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 5afe294ed51f..8af4679db23e 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -751,7 +751,6 @@ void rs600_mc_init(struct radeon_device *rdev)
         rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
         rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
         rdev->mc.visible_vram_size = rdev->mc.aper_size;
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
         rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
         base = RREG32_MC(R_000004_MC_FB_LOCATION);
         base = G_000004_MC_FB_START(base) << 16;
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 6638c8e4c81b..66c949b7c18c 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -157,7 +157,6 @@ void rs690_mc_init(struct radeon_device *rdev)
         rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
         rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
         rdev->mc.visible_vram_size = rdev->mc.aper_size;
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
         base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
         base = G_000100_MC_FB_START(base) << 16;
         rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index d8ba67690656..714ad45757d0 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -307,7 +307,7 @@ static void rv770_mc_program(struct radeon_device *rdev)
  */
 void r700_cp_stop(struct radeon_device *rdev)
 {
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
+        radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
         WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
         WREG32(SCRATCH_UMSK, 0);
 }
@@ -1123,7 +1123,6 @@ int rv770_mc_init(struct radeon_device *rdev)
         rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
         rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
         rdev->mc.visible_vram_size = rdev->mc.aper_size;
-        rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
         r700_vram_gtt_location(rdev, &rdev->mc);
         radeon_update_bandwidth_info(rdev);
 
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index eca855a55c0d..3de4ba0260a5 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -646,7 +646,7 @@ static int __devexit cpwd_remove(struct platform_device *op)
         struct cpwd *p = dev_get_drvdata(&op->dev);
         int i;
 
-        for (i = 0; i < 4; i++) {
+        for (i = 0; i < WD_NUMDEVS; i++) {
                 misc_deregister(&p->devs[i].misc);
 
                 if (!p->enabled) {
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 24b966d5061a..204a5603c4ae 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -710,7 +710,7 @@ static int __devinit hpwdt_init_nmi_decoding(struct pci_dev *dev)
         return 0;
 }
 
-static void __devexit hpwdt_exit_nmi_decoding(void)
+static void hpwdt_exit_nmi_decoding(void)
 {
         unregister_die_notifier(&die_notifier);
         if (cru_rom_addr)
@@ -726,7 +726,7 @@ static int __devinit hpwdt_init_nmi_decoding(struct pci_dev *dev)
         return 0;
 }
 
-static void __devexit hpwdt_exit_nmi_decoding(void)
+static void hpwdt_exit_nmi_decoding(void)
 {
 }
 #endif /* CONFIG_HPWDT_NMI_DECODING */
diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c
index 0461858e07d0..b61ab1c54293 100644
--- a/drivers/watchdog/sch311x_wdt.c
+++ b/drivers/watchdog/sch311x_wdt.c
@@ -508,7 +508,7 @@ static int __init sch311x_detect(int sio_config_port, unsigned short *addr)
         sch311x_sio_outb(sio_config_port, 0x07, 0x0a);
 
         /* Check if Logical Device Register is currently active */
-        if (sch311x_sio_inb(sio_config_port, 0x30) && 0x01 == 0)
+        if ((sch311x_sio_inb(sio_config_port, 0x30) & 0x01) == 0)
                 printk(KERN_INFO PFX "Seems that LDN 0x0a is not active...\n");
 
         /* Get the base address of the runtime registers */
diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c
index a6c12dec91a1..df2a64dc9672 100644
--- a/drivers/watchdog/w83697ug_wdt.c
+++ b/drivers/watchdog/w83697ug_wdt.c
@@ -109,7 +109,7 @@ static int w83697ug_select_wd_register(void)
         outb_p(0x08, WDT_EFDR); /* select logical device 8 (GPIO2) */
         outb_p(0x30, WDT_EFER); /* select CR30 */
         c = inb_p(WDT_EFDR);
-        outb_p(c || 0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
+        outb_p(c | 0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
 
         return 0;
 }
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 1cc600e77bb4..2f8e61816d75 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -37,6 +37,7 @@
 #include <linux/inet.h>
 #include <linux/nfs_xdr.h>
 #include <linux/slab.h>
+#include <linux/compat.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -89,7 +90,11 @@ int nfs_wait_bit_killable(void *word)
  */
 u64 nfs_compat_user_ino64(u64 fileid)
 {
-        int ino;
+#ifdef CONFIG_COMPAT
+        compat_ulong_t ino;
+#else   
+        unsigned long ino;
+#endif
 
         if (enable_ino64)
                 return fileid;
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 7a7474073148..1be36cf65bfc 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -298,6 +298,11 @@ struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp);
 #if defined(CONFIG_NFS_V4_1)
 struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp);
 struct rpc_cred *nfs4_get_exchange_id_cred(struct nfs_client *clp);
+extern void nfs4_schedule_session_recovery(struct nfs4_session *);
+#else
+static inline void nfs4_schedule_session_recovery(struct nfs4_session *session)
+{
+}
 #endif /* CONFIG_NFS_V4_1 */
 
 extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *);
@@ -307,10 +312,9 @@ extern void nfs4_put_open_state(struct nfs4_state *);
 extern void nfs4_close_state(struct path *, struct nfs4_state *, fmode_t);
 extern void nfs4_close_sync(struct path *, struct nfs4_state *, fmode_t);
 extern void nfs4_state_set_mode_locked(struct nfs4_state *, fmode_t);
-extern void nfs4_schedule_state_recovery(struct nfs_client *);
+extern void nfs4_schedule_lease_recovery(struct nfs_client *);
 extern void nfs4_schedule_state_manager(struct nfs_client *);
-extern int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state);
-extern int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state);
+extern void nfs4_schedule_stateid_recovery(const struct nfs_server *, struct nfs4_state *);
 extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags);
 extern void nfs41_handle_recall_slot(struct nfs_client *clp);
 extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index f5c9b125e8cc..b73c34375f60 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -219,6 +219,10 @@ decode_and_add_ds(__be32 **pp, struct inode *inode)
                 goto out_err;
         }
         buf = kmalloc(rlen + 1, GFP_KERNEL);
+        if (!buf) {
+                dprintk("%s: Not enough memory\n", __func__);
+                goto out_err;
+        }
         buf[rlen] = '\0';
         memcpy(buf, r_addr, rlen);
 
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 1ff76acc7e98..0a07e353a961 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -51,7 +51,6 @@
 #include <linux/sunrpc/bc_xprt.h>
 #include <linux/xattr.h>
 #include <linux/utsname.h>
-#include <linux/mm.h>
 
 #include "nfs4_fs.h"
 #include "delegation.h"
@@ -257,12 +256,13 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode,
                 case -NFS4ERR_OPENMODE:
                         if (state == NULL)
                                 break;
-                        nfs4_state_mark_reclaim_nograce(clp, state);
-                        goto do_state_recovery;
+                        nfs4_schedule_stateid_recovery(server, state);
+                        goto wait_on_recovery;
                 case -NFS4ERR_STALE_STATEID:
                 case -NFS4ERR_STALE_CLIENTID:
                 case -NFS4ERR_EXPIRED:
-                        goto do_state_recovery;
+                        nfs4_schedule_lease_recovery(clp);
+                        goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
                 case -NFS4ERR_BADSESSION:
                 case -NFS4ERR_BADSLOT:
@@ -273,7 +273,7 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode,
                 case -NFS4ERR_SEQ_MISORDERED:
                         dprintk("%s ERROR: %d Reset session\n", __func__,
                                 errorcode);
-                        nfs4_schedule_state_recovery(clp);
+                        nfs4_schedule_session_recovery(clp->cl_session);
                         exception->retry = 1;
                         break;
 #endif /* defined(CONFIG_NFS_V4_1) */
@@ -296,8 +296,7 @@ static int nfs4_handle_exception(const struct nfs_server *server, int errorcode,
         }
         /* We failed to handle the error */
         return nfs4_map_errors(ret);
-do_state_recovery:
-        nfs4_schedule_state_recovery(clp);
+wait_on_recovery:
         ret = nfs4_wait_clnt_recover(clp);
         if (ret == 0)
                 exception->retry = 1;
@@ -436,8 +435,8 @@ static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *
                 clp = res->sr_session->clp;
                 do_renew_lease(clp, timestamp);
                 /* Check sequence flags */
-                if (atomic_read(&clp->cl_count) > 1)
-                        nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
+                if (res->sr_status_flags != 0)
+                        nfs4_schedule_lease_recovery(clp);
                 break;
         case -NFS4ERR_DELAY:
                 /* The server detected a resend of the RPC call and
@@ -1256,14 +1255,13 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
                         case -NFS4ERR_BAD_HIGH_SLOT:
                         case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
                         case -NFS4ERR_DEADSESSION:
-                                nfs4_schedule_state_recovery(
-                                        server->nfs_client);
+                                nfs4_schedule_session_recovery(server->nfs_client->cl_session);
                                 goto out;
                         case -NFS4ERR_STALE_CLIENTID:
                         case -NFS4ERR_STALE_STATEID:
                         case -NFS4ERR_EXPIRED:
                                 /* Don't recall a delegation if it was lost */
-                                nfs4_schedule_state_recovery(server->nfs_client);
+                                nfs4_schedule_lease_recovery(server->nfs_client);
                                 goto out;
                         case -ERESTARTSYS:
                                 /*
@@ -1272,7 +1270,7 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
                                  */
                         case -NFS4ERR_ADMIN_REVOKED:
                         case -NFS4ERR_BAD_STATEID:
-                                nfs4_state_mark_reclaim_nograce(server->nfs_client, state);
+                                nfs4_schedule_stateid_recovery(server, state);
                         case -EKEYEXPIRED:
                                 /*
                                  * User RPCSEC_GSS context has expired.
@@ -1588,7 +1586,7 @@ static int nfs4_recover_expired_lease(struct nfs_server *server)
                 if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) &&
                     !test_bit(NFS4CLNT_CHECK_LEASE,&clp->cl_state))
                         break;
-                nfs4_schedule_state_recovery(clp);
+                nfs4_schedule_state_manager(clp);
                 ret = -EIO;
         }
         return ret;
@@ -3179,7 +3177,7 @@ static void nfs4_renew_done(struct rpc_task *task, void *calldata)
         if (task->tk_status < 0) {
                 /* Unless we're shutting down, schedule state recovery! */
                 if (test_bit(NFS_CS_RENEWD, &clp->cl_res_state) != 0)
-                        nfs4_schedule_state_recovery(clp);
+                        nfs4_schedule_lease_recovery(clp);
                 return;
         }
         do_renew_lease(clp, timestamp);
@@ -3262,7 +3260,7 @@ static int buf_to_pages_noslab(const void *buf, size_t buflen,
         spages = pages;
 
         do {
-                len = min(PAGE_CACHE_SIZE, buflen);
+                len = min_t(size_t, PAGE_CACHE_SIZE, buflen);
                 newpage = alloc_page(GFP_KERNEL);
 
                 if (newpage == NULL)
@@ -3504,12 +3502,13 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
                 case -NFS4ERR_OPENMODE:
                         if (state == NULL)
                                 break;
-                        nfs4_state_mark_reclaim_nograce(clp, state);
-                        goto do_state_recovery;
+                        nfs4_schedule_stateid_recovery(server, state);
+                        goto wait_on_recovery;
                 case -NFS4ERR_STALE_STATEID:
                 case -NFS4ERR_STALE_CLIENTID:
                 case -NFS4ERR_EXPIRED:
-                        goto do_state_recovery;
+                        nfs4_schedule_lease_recovery(clp);
+                        goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
                 case -NFS4ERR_BADSESSION:
                 case -NFS4ERR_BADSLOT:
@@ -3520,7 +3519,7 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
                 case -NFS4ERR_SEQ_MISORDERED:
                         dprintk("%s ERROR %d, Reset session\n", __func__,
                                 task->tk_status);
-                        nfs4_schedule_state_recovery(clp);
+                        nfs4_schedule_session_recovery(clp->cl_session);
                         task->tk_status = 0;
                         return -EAGAIN;
 #endif /* CONFIG_NFS_V4_1 */
@@ -3537,9 +3536,8 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
         }
         task->tk_status = nfs4_map_errors(task->tk_status);
         return 0;
-do_state_recovery:
+wait_on_recovery:
         rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
-        nfs4_schedule_state_recovery(clp);
         if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
                 rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
         task->tk_status = 0;
@@ -4150,7 +4148,7 @@ static void nfs4_lock_release(void *calldata)
                 task = nfs4_do_unlck(&data->fl, data->ctx, data->lsp,
                                 data->arg.lock_seqid);
                 if (!IS_ERR(task))
-                        rpc_put_task(task);
+                        rpc_put_task_async(task);
                 dprintk("%s: cancelling lock!\n", __func__);
         } else
                 nfs_free_seqid(data->arg.lock_seqid);
@@ -4174,23 +4172,18 @@ static const struct rpc_call_ops nfs4_recover_lock_ops = {
 
 static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_state *lsp, int new_lock_owner, int error)
 {
-        struct nfs_client *clp = server->nfs_client;
-        struct nfs4_state *state = lsp->ls_state;
-
         switch (error) {
         case -NFS4ERR_ADMIN_REVOKED:
         case -NFS4ERR_BAD_STATEID:
-        case -NFS4ERR_EXPIRED:
+                lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
                 if (new_lock_owner != 0 ||
                    (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
-                        nfs4_state_mark_reclaim_nograce(clp, state);
-                lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
+                        nfs4_schedule_stateid_recovery(server, lsp->ls_state);
                 break;
         case -NFS4ERR_STALE_STATEID:
-                if (new_lock_owner != 0 ||
-                    (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
-                        nfs4_state_mark_reclaim_reboot(clp, state);
                 lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED;
+        case -NFS4ERR_EXPIRED:
+                nfs4_schedule_lease_recovery(server->nfs_client);
         };
 }
 
@@ -4406,12 +4399,14 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
                         case -NFS4ERR_EXPIRED:
                         case -NFS4ERR_STALE_CLIENTID:
                         case -NFS4ERR_STALE_STATEID:
+                                nfs4_schedule_lease_recovery(server->nfs_client);
+                                goto out;
                         case -NFS4ERR_BADSESSION:
                         case -NFS4ERR_BADSLOT:
                         case -NFS4ERR_BAD_HIGH_SLOT:
                         case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
                         case -NFS4ERR_DEADSESSION:
-                                nfs4_schedule_state_recovery(server->nfs_client);
+                                nfs4_schedule_session_recovery(server->nfs_client->cl_session);
                                 goto out;
                         case -ERESTARTSYS:
                                 /*
@@ -4421,7 +4416,7 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
                         case -NFS4ERR_ADMIN_REVOKED:
                         case -NFS4ERR_BAD_STATEID:
                         case -NFS4ERR_OPENMODE:
-                                nfs4_state_mark_reclaim_nograce(server->nfs_client, state);
+                                nfs4_schedule_stateid_recovery(server, state);
                                 err = 0;
                                 goto out;
                         case -EKEYEXPIRED:
@@ -5028,10 +5023,20 @@ int nfs4_proc_create_session(struct nfs_client *clp)
         int status;
         unsigned *ptr;
         struct nfs4_session *session = clp->cl_session;
+        long timeout = 0;
+        int err;
 
         dprintk("--> %s clp=%p session=%p\n", __func__, clp, session);
 
-        status = _nfs4_proc_create_session(clp);
+        do {
+                status = _nfs4_proc_create_session(clp);
+                if (status == -NFS4ERR_DELAY) {
+                        err = nfs4_delay(clp->cl_rpcclient, &timeout);
+                        if (err)
+                                status = err;
+                }
+        } while (status == -NFS4ERR_DELAY);
+
         if (status)
                 goto out;
 
@@ -5140,7 +5145,7 @@ static int nfs41_sequence_handle_errors(struct rpc_task *task, struct nfs_client
                 rpc_delay(task, NFS4_POLL_RETRY_MAX);
                 return -EAGAIN;
         default:
-                nfs4_schedule_state_recovery(clp);
+                nfs4_schedule_lease_recovery(clp);
         }
         return 0;
 }
@@ -5227,7 +5232,7 @@ static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cr
         if (IS_ERR(task))
                 ret = PTR_ERR(task);
         else
-                rpc_put_task(task);
+                rpc_put_task_async(task);
         dprintk("<-- %s status=%d\n", __func__, ret);
         return ret;
 }
@@ -5243,8 +5248,13 @@ static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
                 goto out;
         }
         ret = rpc_wait_for_completion_task(task);
-        if (!ret)
+        if (!ret) {
+                struct nfs4_sequence_res *res = task->tk_msg.rpc_resp;
+
+                if (task->tk_status == 0)
+                        nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
                 ret = task->tk_status;
+        }
         rpc_put_task(task);
 out:
         dprintk("<-- %s status=%d\n", __func__, ret);
@@ -5281,7 +5291,7 @@ static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nf
                 rpc_delay(task, NFS4_POLL_RETRY_MAX);
                 return -EAGAIN;
         default:
-                nfs4_schedule_state_recovery(clp);
+                nfs4_schedule_lease_recovery(clp);
         }
         return 0;
 }
@@ -5349,6 +5359,9 @@ static int nfs41_proc_reclaim_complete(struct nfs_client *clp)
                 status = PTR_ERR(task);
                 goto out;
         }
+        status = nfs4_wait_for_completion_rpc_task(task);
+        if (status == 0)
+                status = task->tk_status;
         rpc_put_task(task);
         return 0;
 out:
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index e6742b57a04c..0592288f9f06 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1007,9 +1007,9 @@ void nfs4_schedule_state_manager(struct nfs_client *clp)
 }
 
 /*
- * Schedule a state recovery attempt
+ * Schedule a lease recovery attempt
  */
-void nfs4_schedule_state_recovery(struct nfs_client *clp)
+void nfs4_schedule_lease_recovery(struct nfs_client *clp)
 {
         if (!clp)
                 return;
@@ -1018,7 +1018,7 @@ void nfs4_schedule_state_recovery(struct nfs_client *clp)
         nfs4_schedule_state_manager(clp);
 }
 
-int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state)
+static int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state)
 {
 
         set_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags);
@@ -1032,7 +1032,7 @@ int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *st
         return 1;
 }
 
-int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state)
+static int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state)
 {
         set_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags);
         clear_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags);
@@ -1041,6 +1041,14 @@ int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *s
         return 1;
 }
 
+void nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4_state *state)
+{
+        struct nfs_client *clp = server->nfs_client;
+
+        nfs4_state_mark_reclaim_nograce(clp, state);
+        nfs4_schedule_state_manager(clp);
+}
+
 static int nfs4_reclaim_locks(struct nfs4_state *state, const struct nfs4_state_recovery_ops *ops)
 {
         struct inode *inode = state->inode;
@@ -1436,10 +1444,15 @@ static int nfs4_reclaim_lease(struct nfs_client *clp)
 }
 
 #ifdef CONFIG_NFS_V4_1
+void nfs4_schedule_session_recovery(struct nfs4_session *session)
+{
+        nfs4_schedule_lease_recovery(session->clp);
+}
+
 void nfs41_handle_recall_slot(struct nfs_client *clp)
 {
         set_bit(NFS4CLNT_RECALL_SLOT, &clp->cl_state);
-        nfs4_schedule_state_recovery(clp);
+        nfs4_schedule_state_manager(clp);
 }
 
 static void nfs4_reset_all_state(struct nfs_client *clp)
@@ -1447,7 +1460,7 @@ static void nfs4_reset_all_state(struct nfs_client *clp)
         if (test_and_set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0) {
                 clp->cl_boot_time = CURRENT_TIME;
                 nfs4_state_start_reclaim_nograce(clp);
-                nfs4_schedule_state_recovery(clp);
+                nfs4_schedule_state_manager(clp);
         }
 }
 
@@ -1455,7 +1468,7 @@ static void nfs41_handle_server_reboot(struct nfs_client *clp)
 {
         if (test_and_set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0) {
                 nfs4_state_start_reclaim_reboot(clp);
-                nfs4_schedule_state_recovery(clp);
+                nfs4_schedule_state_manager(clp);
         }
 }
 
@@ -1475,7 +1488,7 @@ static void nfs41_handle_cb_path_down(struct nfs_client *clp)
 {
         nfs_expire_all_delegations(clp);
         if (test_and_set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state) == 0)
-                nfs4_schedule_state_recovery(clp);
+                nfs4_schedule_state_manager(clp);
 }
 
 void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 4e2c168b6ee9..94d50e86a124 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1660,7 +1660,7 @@ static void encode_create_session(struct xdr_stream *xdr,
 
         p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12);
         *p++ = cpu_to_be32(OP_CREATE_SESSION);
-        p = xdr_encode_hyper(p, clp->cl_ex_clid);
+        p = xdr_encode_hyper(p, clp->cl_clientid);
         *p++ = cpu_to_be32(clp->cl_seqid);                      /*Sequence id */
         *p++ = cpu_to_be32(args->flags);                        /*flags */
 
@@ -4694,7 +4694,7 @@ static int decode_exchange_id(struct xdr_stream *xdr,
         p = xdr_inline_decode(xdr, 8);
         if (unlikely(!p))
                 goto out_overflow;
-        xdr_decode_hyper(p, &clp->cl_ex_clid);
+        xdr_decode_hyper(p, &clp->cl_clientid);
         p = xdr_inline_decode(xdr, 12);
         if (unlikely(!p))
                 goto out_overflow;
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index 903908a20023..c541093a5bf2 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -86,11 +86,14 @@
 /* Default path we try to mount. "%s" gets replaced by our IP address */
 #define NFS_ROOT                "/tftpboot/%s"
 
+/* Default NFSROOT mount options. */
+#define NFS_DEF_OPTIONS         "udp"
+
 /* Parameters passed from the kernel command line */
 static char nfs_root_parms[256] __initdata = "";
 
 /* Text-based mount options passed to super.c */
-static char nfs_root_options[256] __initdata = "";
+static char nfs_root_options[256] __initdata = NFS_DEF_OPTIONS;
 
 /* Address of NFS server */
 static __be32 servaddr __initdata = htonl(INADDR_NONE);
@@ -160,8 +163,14 @@ static int __init root_nfs_copy(char *dest, const char *src,
 }
 
 static int __init root_nfs_cat(char *dest, const char *src,
-                                  const size_t destlen)
+                               const size_t destlen)
 {
+        size_t len = strlen(dest);
+
+        if (len && dest[len - 1] != ',')
+                if (strlcat(dest, ",", destlen) > destlen)
+                        return -1;
+
         if (strlcat(dest, src, destlen) > destlen)
                 return -1;
         return 0;
@@ -194,16 +203,6 @@ static int __init root_nfs_parse_options(char *incoming, char *exppath,
                 if (root_nfs_cat(nfs_root_options, incoming,
                                                 sizeof(nfs_root_options)))
                         return -1;
-
-        /*
-         * Possibly prepare for more options to be appended
-         */
-        if (nfs_root_options[0] != '\0' &&
-            nfs_root_options[strlen(nfs_root_options)] != ',')
-                if (root_nfs_cat(nfs_root_options, ",",
-                                                sizeof(nfs_root_options)))
-                        return -1;
-
         return 0;
 }
 
@@ -217,7 +216,7 @@ static int __init root_nfs_parse_options(char *incoming, char *exppath,
  */
 static int __init root_nfs_data(char *cmdline)
 {
-        char addr_option[sizeof("nolock,addr=") + INET_ADDRSTRLEN + 1];
+        char mand_options[sizeof("nolock,addr=") + INET_ADDRSTRLEN + 1];
         int len, retval = -1;
         char *tmp = NULL;
         const size_t tmplen = sizeof(nfs_export_path);
@@ -244,9 +243,9 @@ static int __init root_nfs_data(char *cmdline)
          * Append mandatory options for nfsroot so they override
          * what has come before
          */
-        snprintf(addr_option, sizeof(addr_option), "nolock,addr=%pI4",
+        snprintf(mand_options, sizeof(mand_options), "nolock,addr=%pI4",
                         &servaddr);
-        if (root_nfs_cat(nfs_root_options, addr_option,
+        if (root_nfs_cat(nfs_root_options, mand_options,
                                                 sizeof(nfs_root_options)))
                 goto out_optionstoolong;
 
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index e313a51acdd1..6481d537d69d 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -180,7 +180,7 @@ static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct n
         task_setup_data.rpc_client = NFS_CLIENT(dir);
         task = rpc_run_task(&task_setup_data);
         if (!IS_ERR(task))
-                rpc_put_task(task);
+                rpc_put_task_async(task);
         return 1;
 }
 
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index c8278f4046cb..42b92d7a9cc4 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1292,6 +1292,8 @@ static int nfs_commit_rpcsetup(struct list_head *head,
         task = rpc_run_task(&task_setup_data);
         if (IS_ERR(task))
                 return PTR_ERR(task);
+        if (how & FLUSH_SYNC)
+                rpc_wait_for_completion_task(task);
         rpc_put_task(task);
         return 0;
 }
diff --git a/fs/partitions/osf.c b/fs/partitions/osf.c
index 48cec7cbca17..be03a0b08b47 100644
--- a/fs/partitions/osf.c
+++ b/fs/partitions/osf.c
@@ -10,10 +10,13 @@
 #include "check.h"
 #include "osf.h"
 
+#define MAX_OSF_PARTITIONS 8
+
 int osf_partition(struct parsed_partitions *state)
 {
         int i;
         int slot = 1;
+        unsigned int npartitions;
         Sector sect;
         unsigned char *data;
         struct disklabel {
@@ -45,7 +48,7 @@ int osf_partition(struct parsed_partitions *state)
                         u8  p_fstype;
                         u8  p_frag;
                         __le16 p_cpg;
-                } d_partitions[8];
+                } d_partitions[MAX_OSF_PARTITIONS];
         } * label;
         struct d_partition * partition;
 
@@ -63,7 +66,12 @@ int osf_partition(struct parsed_partitions *state)
                 put_dev_sector(sect);
                 return 0;
         }
-        for (i = 0 ; i < le16_to_cpu(label->d_npartitions); i++, partition++) {
+        npartitions = le16_to_cpu(label->d_npartitions);
+        if (npartitions > MAX_OSF_PARTITIONS) {
+                put_dev_sector(sect);
+                return 0;
+        }
+        for (i = 0 ; i < npartitions; i++, partition++) {
                 if (slot == state->limit)
                         break;
                 if (le32_to_cpu(partition->p_size))
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index b197563913bf..3e112de12d8d 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -68,11 +68,7 @@ struct nfs_client {
         unsigned char           cl_id_uniquifier;
         u32                     cl_cb_ident;    /* v4.0 callback identifier */
         const struct nfs4_minor_version_ops *cl_mvops;
-#endif /* CONFIG_NFS_V4 */
 
-#ifdef CONFIG_NFS_V4_1
-        /* clientid returned from EXCHANGE_ID, used by session operations */
-        u64                     cl_ex_clid;
         /* The sequence id to use for the next CREATE_SESSION */
         u32                     cl_seqid;
         /* The flags used for obtaining the clientid during EXCHANGE_ID */
@@ -80,7 +76,7 @@ struct nfs_client {
         struct nfs4_session     *cl_session;    /* sharred session */
         struct list_head        cl_layouts;
         struct pnfs_deviceid_cache *cl_devid_cache; /* pNFS deviceid cache */
-#endif /* CONFIG_NFS_V4_1 */
+#endif /* CONFIG_NFS_V4 */
 
 #ifdef CONFIG_NFS_FSCACHE
         struct fscache_cookie   *fscache;       /* client index cache cookie */
@@ -185,7 +181,7 @@ struct nfs_server {
 /* maximum number of slots to use */
 #define NFS4_MAX_SLOT_TABLE RPC_MAX_SLOT_TABLE
 
-#if defined(CONFIG_NFS_V4_1)
+#if defined(CONFIG_NFS_V4)
 
 /* Sessions */
 #define SLOT_TABLE_SZ (NFS4_MAX_SLOT_TABLE/(8*sizeof(long)))
@@ -225,5 +221,5 @@ struct nfs4_session {
         struct nfs_client               *clp;
 };
 
-#endif /* CONFIG_NFS_V4_1 */
+#endif /* CONFIG_NFS_V4 */
 #endif
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 88513fd8e208..d81db8012c63 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -212,6 +212,7 @@ struct rpc_task *rpc_run_task(const struct rpc_task_setup *);
 struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req,
                                 const struct rpc_call_ops *ops);
 void            rpc_put_task(struct rpc_task *);
+void            rpc_put_task_async(struct rpc_task *);
 void            rpc_exit_task(struct rpc_task *);
 void            rpc_exit(struct rpc_task *, int);
 void            rpc_release_calldata(const struct rpc_call_ops *, void *);
diff --git a/kernel/sched.c b/kernel/sched.c
index 18d38e4ec7ba..42eab5a8437d 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4213,6 +4213,7 @@ void __wake_up_locked_key(wait_queue_head_t *q, unsigned int mode, void *key)
 {
         __wake_up_common(q, mode, 1, 0, key);
 }
+EXPORT_SYMBOL_GPL(__wake_up_locked_key);
 
 /**
  * __wake_up_sync_key - wake up threads blocked on a waitqueue.
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index dbe99a5f2073..113e35c47502 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1762,6 +1762,10 @@ static void collapse_huge_page(struct mm_struct *mm,
 #ifndef CONFIG_NUMA
         VM_BUG_ON(!*hpage);
         new_page = *hpage;
+        if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) {
+                up_read(&mm->mmap_sem);
+                return;
+        }
 #else
         VM_BUG_ON(*hpage);
         /*
@@ -1781,12 +1785,12 @@ static void collapse_huge_page(struct mm_struct *mm,
                 *hpage = ERR_PTR(-ENOMEM);
                 return;
         }
-#endif
         if (unlikely(mem_cgroup_newpage_charge(new_page, mm, GFP_KERNEL))) {
                 up_read(&mm->mmap_sem);
                 put_page(new_page);
                 return;
         }
+#endif
 
         /* after allocating the hugepage upgrade to mmap_sem write mode */
         up_read(&mm->mmap_sem);
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 243fc09b164e..59e599498e37 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -252,23 +252,37 @@ static void rpc_set_active(struct rpc_task *task)
 
 /*
  * Mark an RPC call as having completed by clearing the 'active' bit
+ * and then waking up all tasks that were sleeping.
  */
-static void rpc_mark_complete_task(struct rpc_task *task)
+static int rpc_complete_task(struct rpc_task *task)
 {
-        smp_mb__before_clear_bit();
+        void *m = &task->tk_runstate;
+        wait_queue_head_t *wq = bit_waitqueue(m, RPC_TASK_ACTIVE);
+        struct wait_bit_key k = __WAIT_BIT_KEY_INITIALIZER(m, RPC_TASK_ACTIVE);
+        unsigned long flags;
+        int ret;
+
+        spin_lock_irqsave(&wq->lock, flags);
         clear_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
-        smp_mb__after_clear_bit();
-        wake_up_bit(&task->tk_runstate, RPC_TASK_ACTIVE);
+        ret = atomic_dec_and_test(&task->tk_count);
+        if (waitqueue_active(wq))
+                __wake_up_locked_key(wq, TASK_NORMAL, &k);
+        spin_unlock_irqrestore(&wq->lock, flags);
+        return ret;
 }
 
 /*
  * Allow callers to wait for completion of an RPC call
+ *
+ * Note the use of out_of_line_wait_on_bit() rather than wait_on_bit()
+ * to enforce taking of the wq->lock and hence avoid races with
+ * rpc_complete_task().
  */
 int __rpc_wait_for_completion_task(struct rpc_task *task, int (*action)(void *))
 {
         if (action == NULL)
                 action = rpc_wait_bit_killable;
-        return wait_on_bit(&task->tk_runstate, RPC_TASK_ACTIVE,
+        return out_of_line_wait_on_bit(&task->tk_runstate, RPC_TASK_ACTIVE,
                         action, TASK_KILLABLE);
 }
 EXPORT_SYMBOL_GPL(__rpc_wait_for_completion_task);
@@ -857,34 +871,67 @@ static void rpc_async_release(struct work_struct *work)
         rpc_free_task(container_of(work, struct rpc_task, u.tk_work));
 }
 
-void rpc_put_task(struct rpc_task *task)
+static void rpc_release_resources_task(struct rpc_task *task)
 {
-        if (!atomic_dec_and_test(&task->tk_count))
-                return;
-        /* Release resources */
         if (task->tk_rqstp)
                 xprt_release(task);
         if (task->tk_msg.rpc_cred)
                 put_rpccred(task->tk_msg.rpc_cred);
         rpc_task_release_client(task);
-        if (task->tk_workqueue != NULL) {
+}
+
+static void rpc_final_put_task(struct rpc_task *task,
+                struct workqueue_struct *q)
+{
+        if (q != NULL) {
                 INIT_WORK(&task->u.tk_work, rpc_async_release);
-                queue_work(task->tk_workqueue, &task->u.tk_work);
+                queue_work(q, &task->u.tk_work);
         } else
                 rpc_free_task(task);
 }
+
+static void rpc_do_put_task(struct rpc_task *task, struct workqueue_struct *q)
+{
+        if (atomic_dec_and_test(&task->tk_count)) {
+                rpc_release_resources_task(task);
+                rpc_final_put_task(task, q);
+        }
+}
+
+void rpc_put_task(struct rpc_task *task)
+{
+        rpc_do_put_task(task, NULL);
+}
 EXPORT_SYMBOL_GPL(rpc_put_task);
 
+void rpc_put_task_async(struct rpc_task *task)
+{
+        rpc_do_put_task(task, task->tk_workqueue);
+}
+EXPORT_SYMBOL_GPL(rpc_put_task_async);
+
 static void rpc_release_task(struct rpc_task *task)
 {
         dprintk("RPC: %5u release task\n", task->tk_pid);
 
         BUG_ON (RPC_IS_QUEUED(task));
 
-        /* Wake up anyone who is waiting for task completion */
-        rpc_mark_complete_task(task);
+        rpc_release_resources_task(task);
 
-        rpc_put_task(task);
+        /*
+         * Note: at this point we have been removed from rpc_clnt->cl_tasks,
+         * so it should be safe to use task->tk_count as a test for whether
+         * or not any other processes still hold references to our rpc_task.
+         */
+        if (atomic_read(&task->tk_count) != 1 + !RPC_IS_ASYNC(task)) {
+                /* Wake up anyone who may be waiting for task completion */
+                if (!rpc_complete_task(task))
+                        return;
+        } else {
+                if (!atomic_dec_and_test(&task->tk_count))
+                        return;
+        }
+        rpc_final_put_task(task, task->tk_workqueue);
 }
 
 int rpciod_up(void)
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 9df1eadc912a..1a10dcd999ea 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -1335,6 +1335,7 @@ void svc_rdma_send_error(struct svcxprt_rdma *xprt, struct rpcrdma_msg *rmsgp,
                                             p, 0, length, DMA_FROM_DEVICE);
         if (ib_dma_mapping_error(xprt->sc_cm_id->device, ctxt->sge[0].addr)) {
                 put_page(p);
+                svc_rdma_put_context(ctxt, 1);
                 return;
         }
         atomic_inc(&xprt->sc_dma_used);
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index c431f5a57960..be96d429b475 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1631,7 +1631,8 @@ static struct socket *xs_create_sock(struct rpc_xprt *xprt,
         }
         xs_reclassify_socket(family, sock);
 
-        if (xs_bind(transport, sock)) {
+        err = xs_bind(transport, sock);
+        if (err) {
                 sock_release(sock);
                 goto out;
         }