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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2022-06-05 17:25:39 +0200 |
|---|---|---|
| committer |   akpm <akpm@linux-foundation.org> | 2022-06-16 19:48:30 -0700 |
| commit | 21bfe8db0a4223c16d4f863ef4250dce5ffd08bb (patch) | |
| tree | 1861d309a2f200eab2cb21351d0aa8ad346c3299 | |
| parent | mm/slab: delete cache_alloc_debugcheck_before() (diff) | |
| download | linux-dev-21bfe8db0a4223c16d4f863ef4250dce5ffd08bb.tar.xz linux-dev-21bfe8db0a4223c16d4f863ef4250dce5ffd08bb.zip | |
mm/mempool: use might_alloc()
mempool are generally used for GFP_NOIO, so this wont benefit all that
much because might_alloc currently only checks GFP_NOFS. But it does
validate against mmu notifier pte zapping, some might catch some drivers
doing really silly things, plus it's a bit more meaningful in what we're
checking for here.
Link: https://lkml.kernel.org/r/20220605152539.3196045-3-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/mempool.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mempool.c b/mm/mempool.c index b933d0fc21b8..96488b13a1ef 100644 --- a/mm/mempool.c +++ b/mm/mempool.c @@ -379,7 +379,7 @@ void *mempool_alloc(mempool_t *pool, gfp_t gfp_mask) gfp_t gfp_temp; VM_WARN_ON_ONCE(gfp_mask & __GFP_ZERO); - might_sleep_if(gfp_mask & __GFP_DIRECT_RECLAIM); + might_alloc(gfp_mask); gfp_mask |= __GFP_NOMEMALLOC; /* don't allocate emergency reserves */ gfp_mask |= __GFP_NORETRY; /* don't loop in __alloc_pages */ |