7 files changed, 18 insertions, 27 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 920366399eed..5209e47b7fe3 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -841,7 +841,7 @@ static void shrink_readahead_size_eio(struct file *filp,
 /**
  * do_generic_mapping_read - generic file read routine
  * @mapping:    address_space to be read
- * @_ra:        file's readahead state
+ * @ra:         file's readahead state
  * @filp:       the file to read
  * @ppos:       current file position
  * @desc:       read_descriptor
diff --git a/mm/memory.c b/mm/memory.c
index bd16dcaeefb8..142683df8755 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -259,9 +259,6 @@ void free_pgd_range(struct mmu_gather **tlb,
                         continue;
                 free_pud_range(*tlb, pgd, addr, next, floor, ceiling);
         } while (pgd++, addr = next, addr != end);
-
-        if (!(*tlb)->fullmm)
-                flush_tlb_pgtables((*tlb)->mm, start, end);
 }
 
 void free_pgtables(struct mmu_gather **tlb, struct vm_area_struct *vma,
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 568152ae6caf..c1592a94582f 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -78,6 +78,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/module.h>
+#include <linux/nsproxy.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/compat.h>
@@ -940,7 +941,7 @@ asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
 
         /* Find the mm_struct */
         read_lock(&tasklist_lock);
-        task = pid ? find_task_by_pid(pid) : current;
+        task = pid ? find_task_by_vpid(pid) : current;
         if (!task) {
                 read_unlock(&tasklist_lock);
                 return -ESRCH;
@@ -1388,7 +1389,6 @@ EXPORT_SYMBOL(alloc_pages_current);
  * keeps mempolicies cpuset relative after its cpuset moves.  See
  * further kernel/cpuset.c update_nodemask().
  */
-void *cpuset_being_rebound;
 
 /* Slow path of a mempolicy copy */
 struct mempolicy *__mpol_copy(struct mempolicy *old)
@@ -2019,4 +2019,3 @@ out:
                 m->version = (vma != priv->tail_vma) ? vma->vm_start : 0;
         return 0;
 }
-
diff --git a/mm/migrate.c b/mm/migrate.c
index 06d0877a66ef..4d6ee03db946 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -19,6 +19,7 @@
 #include <linux/pagemap.h>
 #include <linux/buffer_head.h>
 #include <linux/mm_inline.h>
+#include <linux/nsproxy.h>
 #include <linux/pagevec.h>
 #include <linux/rmap.h>
 #include <linux/topology.h>
@@ -924,7 +925,7 @@ asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
 
         /* Find the mm_struct */
         read_lock(&tasklist_lock);
-        task = pid ? find_task_by_pid(pid) : current;
+        task = pid ? find_task_by_vpid(pid) : current;
         if (!task) {
                 read_unlock(&tasklist_lock);
                 return -ESRCH;
diff --git a/mm/mmap.c b/mm/mmap.c
index 4275e81e25ba..7a30c4988231 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1048,8 +1048,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
 
         /* The open routine did something to the protections already? */
         if (pgprot_val(vma->vm_page_prot) !=
-            pgprot_val(protection_map[vm_flags &
-                    (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]))
+            pgprot_val(vm_get_page_prot(vm_flags)))
                 return 0;
 
         /* Specialty mapping? */
@@ -1130,8 +1129,7 @@ munmap_back:
         vma->vm_start = addr;
         vma->vm_end = addr + len;
         vma->vm_flags = vm_flags;
-        vma->vm_page_prot = protection_map[vm_flags &
-                                (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
+        vma->vm_page_prot = vm_get_page_prot(vm_flags);
         vma->vm_pgoff = pgoff;
 
         if (file) {
@@ -2002,8 +2000,7 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
         vma->vm_end = addr + len;
         vma->vm_pgoff = pgoff;
         vma->vm_flags = flags;
-        vma->vm_page_prot = protection_map[flags &
-                                (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
+        vma->vm_page_prot = vm_get_page_prot(flags);
         vma_link(mm, vma, prev, rb_link, rb_parent);
 out:
         mm->total_vm += len >> PAGE_SHIFT;
@@ -2209,7 +2206,7 @@ int install_special_mapping(struct mm_struct *mm,
         vma->vm_end = addr + len;
 
         vma->vm_flags = vm_flags | mm->def_flags;
-        vma->vm_page_prot = protection_map[vma->vm_flags & 7];
+        vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 
         vma->vm_ops = &special_mapping_vmops;
         vma->vm_private_data = pages;
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 1d4d69790e59..55227845abbe 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -192,11 +192,9 @@ success:
          * held in write mode.
          */
         vma->vm_flags = newflags;
-        vma->vm_page_prot = protection_map[newflags &
-                (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
+        vma->vm_page_prot = vm_get_page_prot(newflags);
         if (vma_wants_writenotify(vma)) {
-                vma->vm_page_prot = protection_map[newflags &
-                        (VM_READ|VM_WRITE|VM_EXEC)];
+                vma->vm_page_prot = vm_get_page_prot(newflags);
                 dirty_accountable = 1;
         }
 
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index a64decb5b13f..824cade07827 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -212,7 +212,7 @@ static struct task_struct *select_bad_process(unsigned long *ppoints)
                 if (!p->mm)
                         continue;
                 /* skip the init task */
-                if (is_init(p))
+                if (is_global_init(p))
                         continue;
 
                 /*
@@ -265,7 +265,7 @@ static struct task_struct *select_bad_process(unsigned long *ppoints)
  */
 static void __oom_kill_task(struct task_struct *p, int verbose)
 {
-        if (is_init(p)) {
+        if (is_global_init(p)) {
                 WARN_ON(1);
                 printk(KERN_WARNING "tried to kill init!\n");
                 return;
@@ -278,7 +278,8 @@ static void __oom_kill_task(struct task_struct *p, int verbose)
         }
 
         if (verbose)
-                printk(KERN_ERR "Killed process %d (%s)\n", p->pid, p->comm);
+                printk(KERN_ERR "Killed process %d (%s)\n",
+                                task_pid_nr(p), p->comm);
 
         /*
          * We give our sacrificial lamb high priority and access to
@@ -326,7 +327,7 @@ static int oom_kill_task(struct task_struct *p)
          * to memory reserves though, otherwise we might deplete all memory.
          */
         do_each_thread(g, q) {
-                if (q->mm == mm && q->tgid != p->tgid)
+                if (q->mm == mm && !same_thread_group(q, p))
                         force_sig(SIGKILL, q);
         } while_each_thread(g, q);
 
@@ -337,7 +338,6 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
                             unsigned long points, const char *message)
 {
         struct task_struct *c;
-        struct list_head *tsk;
 
         if (printk_ratelimit()) {
                 printk(KERN_WARNING "%s invoked oom-killer: "
@@ -357,11 +357,10 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
         }
 
         printk(KERN_ERR "%s: kill process %d (%s) score %li or a child\n",
-                                        message, p->pid, p->comm, points);
+                                        message, task_pid_nr(p), p->comm, points);
 
         /* Try to kill a child first */
-        list_for_each(tsk, &p->children) {
-                c = list_entry(tsk, struct task_struct, sibling);
+        list_for_each_entry(c, &p->children, sibling) {
                 if (c->mm == p->mm)
                         continue;
                 if (!oom_kill_task(c))