diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-11-28 21:12:40 +0100 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2012-02-07 12:47:12 -0500 |
| commit | 9927dbe2f4296a830deaa45033508f70c66c7204 (patch) | |
| tree | 013d01d340e78074ffdd49f651c151e03bb468b8 | |
| parent | a1d7b26a1aaae56f25b97fbee9a857ac9a895a15 (diff) | |
slab, lockdep: Fix silly bug
Commit 30765b92 ("slab, lockdep: Annotate the locks before using
them") moves the init_lock_keys() call from after g_cpucache_up =
FULL, to before it. And overlooks the fact that init_node_lock_keys()
tests for it and ignores everything !FULL.
Introduce a LATE stage and change the lockdep test to be <LATE.
Cc: stable@kernel.org
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Hans Schillstrom <hans@schillstrom.com>
Cc: Christoph Lameter <cl@gentwo.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Sitsofe Wheeler <sitsofe@yahoo.com>
Cc: linux-mm@kvack.org
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/n/tip-gadqbdfxorhia1w5ewmoiodd@git.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | mm/slab.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/slab.c b/mm/slab.c index 015cd76a1a24..433b9a2b0b31 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -594,6 +594,7 @@ static enum { PARTIAL_AC, PARTIAL_L3, EARLY, + LATE, FULL } g_cpucache_up; @@ -670,7 +671,7 @@ static void init_node_lock_keys(int q) { struct cache_sizes *s = malloc_sizes; - if (g_cpucache_up != FULL) + if (g_cpucache_up < LATE) return; for (s = malloc_sizes; s->cs_size != ULONG_MAX; s++) { @@ -1725,6 +1726,8 @@ void __init kmem_cache_init_late(void) { struct kmem_cache *cachep; + g_cpucache_up = LATE; + /* Annotate slab for lockdep -- annotate the malloc caches */ init_lock_keys(); |