Messages in this thread Patch in this message | | | From | Jiri Slaby <> | Subject | [PATCH] S390: use helpers for rlimits | Date | Wed, 6 Jan 2010 16:24:32 +0100 |
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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 or ACCESS_ONCE if not applicable.
Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org --- arch/s390/mm/mmap.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index f4558cc..869efba 100644 --- a/arch/s390/mm/mmap.c +++ b/arch/s390/mm/mmap.c @@ -40,7 +40,7 @@ static inline 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; @@ -61,7 +61,7 @@ static inline int mmap_is_legacy(void) #endif return sysctl_legacy_va_layout || (current->personality & ADDR_COMPAT_LAYOUT) || - current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY; + rlimit(RLIMIT_STACK) == RLIM_INFINITY; } #ifndef CONFIG_64BIT -- 1.6.5.7
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