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authorJiri Slaby <jslaby@suse.cz>2010-03-05 13:41:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 11:26:24 -0800
commit59e99e5b9706867f18d4a36c1e4645fbaacbec2e (patch)
treee977fb5eecccf1446296fd196072bd1287b0a92f /mm/mremap.c
parent06f9d8c2b50060543fb6e0af87ddb86e654dee6b (diff)
downloadlinaro-lsk-59e99e5b9706867f18d4a36c1e4645fbaacbec2e.tar.gz
mm: use rlimit helpers
Make sure compiler won't do weird things with limits. E.g. fetching them twice may return 2 different values after writable limits are implemented. I.e. either use rlimit helpers added in 3e10e716abf3c71bdb5d86b8f507f9e72236c9cd ("resource: add helpers for fetching rlimits") or ACCESS_ONCE if not applicable. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mremap.c')
-rw-r--r--mm/mremap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mremap.c b/mm/mremap.c
index 845190898d5..4c4c803453f 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -285,7 +285,7 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
if (vma->vm_flags & VM_LOCKED) {
unsigned long locked, lock_limit;
locked = mm->locked_vm << PAGE_SHIFT;
- lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
+ lock_limit = rlimit(RLIMIT_MEMLOCK);
locked += new_len - old_len;
if (locked > lock_limit && !capable(CAP_IPC_LOCK))
goto Eagain;