Commit a58c26bb authored by Jiri Slaby's avatar Jiri Slaby Committed by Martin Schwidefsky
Browse files

[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
3e10e716


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: default avatarJiri Slaby <jslaby@suse.cz>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 16e1a577
...@@ -40,7 +40,7 @@ ...@@ -40,7 +40,7 @@
static inline unsigned long mmap_base(void) 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) if (gap < MIN_GAP)
gap = MIN_GAP; gap = MIN_GAP;
...@@ -61,7 +61,7 @@ static inline int mmap_is_legacy(void) ...@@ -61,7 +61,7 @@ static inline int mmap_is_legacy(void)
#endif #endif
return sysctl_legacy_va_layout || return sysctl_legacy_va_layout ||
(current->personality & ADDR_COMPAT_LAYOUT) || (current->personality & ADDR_COMPAT_LAYOUT) ||
current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY; rlimit(RLIMIT_STACK) == RLIM_INFINITY;
} }
#ifndef CONFIG_64BIT #ifndef CONFIG_64BIT
......
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