diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2010-01-06 08:24:31 +0300 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-01-15 05:20:08 +0300 |
| commit | 4bf936b9e484bb8ee5f32bfd1351893810864f58 (patch) | |
| tree | c1ae85550c155bdcd8eb482898d3c0ea52409975 /arch/powerpc | |
| parent | c81b812a333818c5cc1be2e086c8509d853ebeeb (diff) | |
| download | linux-4bf936b9e484bb8ee5f32bfd1351893810864f58.tar.xz | |
powerpc: 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
3e10e716abf3c71bdb5d86b8f507f9e72236c9cd
or ACCESS_ONCE if not applicable.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/mm/mmap_64.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/coredump.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/mm/mmap_64.c b/arch/powerpc/mm/mmap_64.c index 0d957a4c70fe..5a783d8e8e8e 100644 --- a/arch/powerpc/mm/mmap_64.c +++ b/arch/powerpc/mm/mmap_64.c @@ -47,7 +47,7 @@ static inline 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; @@ -77,7 +77,7 @@ static unsigned long mmap_rnd(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) gap = MIN_GAP; diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c index c4d4a19235e0..eea120229cdb 100644 --- a/arch/powerpc/platforms/cell/spufs/coredump.c +++ b/arch/powerpc/platforms/cell/spufs/coredump.c @@ -54,7 +54,7 @@ static ssize_t do_coredump_read(int num, struct spu_context *ctx, void *buffer, */ static int spufs_dump_write(struct file *file, const void *addr, int nr, loff_t *foffset) { - unsigned long limit = current->signal->rlim[RLIMIT_CORE].rlim_cur; + unsigned long limit = rlimit(RLIMIT_CORE); ssize_t written; if (*foffset + nr > limit) |