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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2013-09-11 14:21:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:57:27 -0700 |
| commit | c0d934ba278935fa751057091fe4a7c02d814f68 (patch) | |
| tree | e1d34d7aaa2b486fc61162f7f37c4a20732dd371 /mm/hugetlb.c | |
| parent | b2261026825ed34066b24069359d118098bb1876 (diff) | |
| download | lwn-c0d934ba278935fa751057091fe4a7c02d814f68.tar.gz lwn-c0d934ba278935fa751057091fe4a7c02d814f68.zip | |
mm, hugetlb: remove redundant list_empty check in gather_surplus_pages()
If list is empty, list_for_each_entry_safe() doesn't do anything. So,
this check is redundant. Remove it.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Hillf Danton <dhillf@gmail.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 08b7595fe3c1..a13be48b818b 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1037,11 +1037,8 @@ free: spin_unlock(&hugetlb_lock); /* Free unnecessary surplus pages to the buddy allocator */ - if (!list_empty(&surplus_list)) { - list_for_each_entry_safe(page, tmp, &surplus_list, lru) { - put_page(page); - } - } + list_for_each_entry_safe(page, tmp, &surplus_list, lru) + put_page(page); spin_lock(&hugetlb_lock); return ret; |