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mm/slub.c: freelist is ensured to be NULL when new_slab() fails
new_slab_objects() will return immediately if freelist is not NULL. if (freelist) return freelist; One more assignment operation could be avoided. Link: http://lkml.kernel.org/r/20181229062512.30469-1-rocking@whu.edu.cn Signed-off-by: Peng Wang <rocking@whu.edu.cn> Reviewed-by: Pekka Enberg <penberg@kernel.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: David Rientjes <rientjes@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 1 additions and 2 deletions
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@ -2482,8 +2482,7 @@ static inline void *new_slab_objects(struct kmem_cache *s, gfp_t flags,
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stat(s, ALLOC_SLAB);
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stat(s, ALLOC_SLAB);
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c->page = page;
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c->page = page;
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*pc = c;
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*pc = c;
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} else
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}
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freelist = NULL;
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return freelist;
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return freelist;
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}
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}
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