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mm/slab: use list_move instead of list_del/list_add

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Using list_move() instead of list_del() + list_add() to avoid needlessly
poisoning the next and prev values.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Wei Yongjun <[email protected]>
Acked-by: David Rientjes <[email protected]>
Acked-by: Christoph Lameter <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Wei Yongjun 2016-07-26 15:22:11 -07:00 • committed by Linus Torvalds
commit de24baecd7
1 changed files with 1 additions and 2 deletions
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3
mm/slab.c
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@ -3452,8 +3452,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp,
n->free_objects -= cachep->num;
page = list_last_entry(&n->slabs_free, struct page, lru);
list_del(&page->lru);
list_add(&page->lru, list);
list_move(&page->lru, list);
}
}