diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2010-01-27 19:32:22 +0300 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-01-28 02:17:31 +0300 |
| commit | 2854e72b58dad82f5248b30a45dda0df49e5fe05 (patch) | |
| tree | 6fb25ecf139c223fbb6d6c25e31ff1d2f93ec668 /arch/x86/mm/mmap.c | |
| parent | be8cde8b24c9dca1e54598690115eee5b1476519 (diff) | |
| download | linux-2854e72b58dad82f5248b30a45dda0df49e5fe05.tar.xz | |
x86: Use helpers for rlimits
Make sure compiler won't do weird things with limits. Fetching them
twice may return 2 different values after writable limits are
implemented.
We can either use rlimit helpers added in
3e10e716abf3c71bdb5d86b8f507f9e72236c9cd or ACCESS_ONCE if not
applicable; this patch uses the helpers.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
LKML-Reference: <1264609942-24621-1-git-send-email-jslaby@suse.cz>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/mm/mmap.c')
| -rw-r--r-- | arch/x86/mm/mmap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index c8191defc38a..1dab5194fd9d 100644 --- a/arch/x86/mm/mmap.c +++ b/arch/x86/mm/mmap.c @@ -71,7 +71,7 @@ static int mmap_is_legacy(void) if (current->personality & ADDR_COMPAT_LAYOUT) return 1; - if (current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY) + if (rlimit(RLIMIT_STACK) == RLIM_INFINITY) return 1; return sysctl_legacy_va_layout; @@ -96,7 +96,7 @@ static unsigned long mmap_rnd(void) static unsigned long mmap_base(void) { - unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur; + unsigned long gap = rlimit(RLIMIT_STACK); if (gap < MIN_GAP) gap = MIN_GAP; |