Commit a58c26bb authored Jan 13, 2010 by Jiri Slaby Committed by Martin Schwidefsky Jan 13, 2010

[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: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 16e1a577

arch/s390/mm/mmap.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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