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ceph: use list_move_tail instead of list_del/list_add_tail

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Using list_move_tail() instead of list_del() + list_add_tail().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Wei Yongjun 2012-09-05 14:34:32 +08:00 committed by Alex Elder
parent 523f32582f
commit cc4829e596
1 changed files with 2 additions and 3 deletions
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5
net/ceph/pagelist.c
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@ -1,4 +1,3 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/gfp.h> #include <linux/gfp.h>
#include <linux/pagemap.h> #include <linux/pagemap.h>
@ -134,8 +133,8 @@ int ceph_pagelist_truncate(struct ceph_pagelist *pl,
ceph_pagelist_unmap_tail(pl); ceph_pagelist_unmap_tail(pl);
while (pl->head.prev != c->page_lru) { while (pl->head.prev != c->page_lru) {
page = list_entry(pl->head.prev, struct page, lru); page = list_entry(pl->head.prev, struct page, lru);
list_del(&page->lru); /* remove from pagelist */ /* move from pagelist to reserve */
list_add_tail(&page->lru, &pl->free_list); /* add to reserve */ list_move_tail(&page->lru, &pl->free_list);
++pl->num_pages_free; ++pl->num_pages_free;
} }
pl->room = c->room; pl->room = c->room;