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| author | Hugh Dickins <hugh@veritas.com> | 2007-01-05 16:36:36 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-05 23:55:23 -0800 |
| commit | b6a60451813bad6a9f57cb159004c3b3e12a1cd3 (patch) | |
| tree | 643ae50ba5a1745950eac093e86072473a3d10ca | |
| parent | be6aab0e9fa6d3c6d75aa1e38ac972d8b4ee82b8 (diff) | |
| download | blackbird-op-linux-b6a60451813bad6a9f57cb159004c3b3e12a1cd3.tar.gz blackbird-op-linux-b6a60451813bad6a9f57cb159004c3b3e12a1cd3.zip | |
[PATCH] fix BUG_ON(!PageSlab) from fallback_alloc
pdflush hit the BUG_ON(!PageSlab(page)) in kmem_freepages called from
fallback_alloc: cache_grow already freed those pages when alloc_slabmgmt
failed. But it wouldn't have freed them if __GFP_NO_GROW, so make sure
fallback_alloc doesn't waste its time on that case.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Pekka J Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | mm/slab.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/slab.c b/mm/slab.c index 0d4e57431de4..c6100628a6ef 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3281,7 +3281,7 @@ retry: flags | GFP_THISNODE, nid); } - if (!obj) { + if (!obj && !(flags & __GFP_NO_GROW)) { /* * This allocation will be performed within the constraints * of the current cpuset / memory policy requirements. @@ -3310,7 +3310,7 @@ retry: */ goto retry; } else { - kmem_freepages(cache, obj); + /* cache_grow already freed obj */ obj = NULL; } } |
