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| author | Christoph Lameter <cl@linux.com> | 2011-03-22 13:35:00 -0500 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2011-03-22 20:48:04 +0200 |
| commit | 4fdccdfbb4652a7bbac8adbce7449eb093775118 (patch) | |
| tree | ff780cfea8087ea4143b1a2186257448f0bad3bb /mm | |
| parent | 2fd66c517d5e98de2528d86e0e62f5069ff99f59 (diff) | |
| download | linux-stable-4fdccdfbb4652a7bbac8adbce7449eb093775118.tar.gz linux-stable-4fdccdfbb4652a7bbac8adbce7449eb093775118.tar.bz2 linux-stable-4fdccdfbb4652a7bbac8adbce7449eb093775118.zip | |
slub: Add statistics for this_cmpxchg_double failures
Add some statistics for debugging.
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slub.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c index e126cfbd3df2..93de30db95f5 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -217,7 +217,7 @@ static inline void sysfs_slab_remove(struct kmem_cache *s) #endif -static inline void stat(struct kmem_cache *s, enum stat_item si) +static inline void stat(const struct kmem_cache *s, enum stat_item si) { #ifdef CONFIG_SLUB_STATS __this_cpu_inc(s->cpu_slab->stat[si]); @@ -1597,6 +1597,7 @@ static inline void note_cmpxchg_failure(const char *n, printk("for unknown reason: actual=%lx was=%lx target=%lx\n", actual_tid, tid, next_tid(tid)); #endif + stat(s, CMPXCHG_DOUBLE_CPU_FAIL); } #endif |