Merge branch 'akpm' (Andrew's patch-bomb)

[profile/ivi/kernel-x86-ivi.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index 230f0ba..a7bf6a3 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -935,6 +935,19 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
 #endif /* CONFIG_PROC_FS */
 
 /*
+ * If a hint addr is less than mmap_min_addr change hint to be as
+ * low as possible but still greater than mmap_min_addr
+ */
+static inline unsigned long round_hint_to_min(unsigned long hint)
+{
+       hint &= PAGE_MASK;
+       if (((void *)hint != NULL) &&
+           (hint < mmap_min_addr))
+               return PAGE_ALIGN(mmap_min_addr);
+       return hint;
+}
+
+/*
  * The caller must hold down_write(&current->mm->mmap_sem).
  */
 
@@ -1234,7 +1247,7 @@ munmap_back:
         */
        if (accountable_mapping(file, vm_flags)) {
                charged = len >> PAGE_SHIFT;
-               if (security_vm_enough_memory(charged))
+               if (security_vm_enough_memory_mm(mm, charged))
                        return -ENOMEM;
                vm_flags |= VM_ACCOUNT;
        }
@@ -2183,7 +2196,7 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
        if (mm->map_count > sysctl_max_map_count)
                return -ENOMEM;
 
-       if (security_vm_enough_memory(len >> PAGE_SHIFT))
+       if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
                return -ENOMEM;
 
        /* Can we just expand an old private anonymous mapping? */
@@ -2227,7 +2240,6 @@ void exit_mmap(struct mm_struct *mm)
        struct mmu_gather tlb;
        struct vm_area_struct *vma;
        unsigned long nr_accounted = 0;
-       unsigned long end;
 
        /* mm's last user has gone, and its about to be pulled down */
        mmu_notifier_release(mm);
@@ -2252,11 +2264,11 @@ void exit_mmap(struct mm_struct *mm)
        tlb_gather_mmu(&tlb, mm, 1);
        /* update_hiwater_rss(mm) here? but nobody should be looking */
        /* Use -1 here to ensure all VMAs in the mm are unmapped */
-       end = unmap_vmas(&tlb, vma, 0, -1, &nr_accounted, NULL);
+       unmap_vmas(&tlb, vma, 0, -1, &nr_accounted, NULL);
        vm_unacct_memory(nr_accounted);
 
        free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0);
-       tlb_finish_mmu(&tlb, 0, end);
+       tlb_finish_mmu(&tlb, 0, -1);
 
        /*
         * Walk the list again, actually closing and freeing it,