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| author |   Vegard Nossum <vegard.nossum@gmail.com> | 2009-06-15 15:50:49 +0200 |
|---|---|---|
| committer | Vegard Nossum <vegard.nossum@gmail.com> | 2009-06-15 15:50:49 +0200 |
| commit | 722f2a6c87f34ee0fd0130a8cf45f81e0705594a (patch) | |
| tree | 50b054df34d2731eb0ba0cf1a6c27e43e7eed428 /mm/slub.c | |
| parent | signal: fix __send_signal() false positive kmemcheck warning (diff) | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next (diff) | |
| download | linux-dev-722f2a6c87f34ee0fd0130a8cf45f81e0705594a.tar.xz linux-dev-722f2a6c87f34ee0fd0130a8cf45f81e0705594a.zip | |
Merge commit 'linus/master' into HEAD
Conflicts:
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Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mm/slub.c b/mm/slub.c index 898fb5047dcc..15960a09abb1 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -179,6 +179,12 @@ static enum { SYSFS /* Sysfs up */ } slab_state = DOWN; +/* + * The slab allocator is initialized with interrupts disabled. Therefore, make + * sure early boot allocations don't accidentally enable interrupts. + */ +static gfp_t slab_gfp_mask __read_mostly = SLAB_GFP_BOOT_MASK; + /* A list of all slab caches on the system */ static DECLARE_RWSEM(slub_lock); static LIST_HEAD(slab_caches); @@ -1618,6 +1624,8 @@ static __always_inline void *slab_alloc(struct kmem_cache *s, unsigned long flags; unsigned int objsize; + gfpflags &= slab_gfp_mask; + lockdep_trace_alloc(gfpflags); might_sleep_if(gfpflags & __GFP_WAIT); @@ -3132,6 +3140,14 @@ void __init kmem_cache_init(void) nr_cpu_ids, nr_node_ids); } +void __init kmem_cache_init_late(void) +{ + /* + * Interrupts are enabled now so all GFP allocations are safe. + */ + slab_gfp_mask = __GFP_BITS_MASK; +} + /* * Find a mergeable slab cache */ |