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[S390] use helpers for rlimits 

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
3e10e716ab
or ACCESS_ONCE if not applicable.

Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Cc: linux-s390@vger.kernel.org
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
hifive-unleashed-5.1
Jiri Slaby 2010-01-13 20:44:33 +01:00 committed by Martin Schwidefsky
parent 16e1a57769
commit a58c26bba9
1 changed files with 2 additions and 2 deletions
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4
arch/s390/mm/mmap.c
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@ -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