From 2854e72b58dad82f5248b30a45dda0df49e5fe05 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 27 Jan 2010 17:32:22 +0100 Subject: 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 LKML-Reference: <1264609942-24621-1-git-send-email-jslaby@suse.cz> Cc: Ingo Molnar Cc: Thomas Gleixner Signed-off-by: H. Peter Anvin --- arch/x86/mm/mmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/x86/mm/mmap.c') diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index c8191de..1dab519 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; -- cgit v1.1