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authorakpm@osdl.org <akpm@osdl.org>2005-05-01 08:58:35 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-01 08:58:35 -0700
commit119f657c72fc07d6fd28c61de59cfba1566970a9 (patch)
tree33c8070aa904c4919cf244cdcd7c01e54589bb9e /include/linux/mm.h
parentf021e9210185b46e41ec3a0e78ec1621e168eacb (diff)
[PATCH] RLIMIT_AS checking fix
Address bug #4508: there's potential for wraparound in the various places where we perform RLIMIT_AS checking. (I'm a bit worried about acct_stack_growth(). Are we sure that vma->vm_mm is always equal to current->mm? If not, then we're comparing some other process's total_vm with the calling process's rlimits). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index c74a74ca401..8b007ad2d45 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -726,6 +726,7 @@ extern void __vma_link_rb(struct mm_struct *, struct vm_area_struct *,
extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
unsigned long addr, unsigned long len, pgoff_t pgoff);
extern void exit_mmap(struct mm_struct *);
+extern int may_expand_vm(struct mm_struct *mm, unsigned long npages);
extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);