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| author | Hugh Dickins <hughd@google.com> | 2011-02-25 23:44:29 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-02-26 00:07:37 +0100 |
| commit | e5598f8bf5449bc09e4005600ead32e6f2a3e79b (patch) | |
| tree | c9c26f9274668d2d47e444d512b2d3d892f9c314 | |
| parent | thp: fix interleaving for transparent hugepages (diff) | |
| download | linux-e5598f8bf5449bc09e4005600ead32e6f2a3e79b.tar.xz linux-e5598f8bf5449bc09e4005600ead32e6f2a3e79b.zip | |
memcg: more mem_cgroup_uncharge() batching
It seems odd that truncate_inode_pages_range(), called not only when
truncating but also when evicting inodes, has mem_cgroup_uncharge_start
and _end() batching in its second loop to clear up a few leftovers, but
not in its first loop that does almost all the work: add them there too.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/truncate.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index 49feb46e77b8..d64296be00d3 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -225,6 +225,7 @@ void truncate_inode_pages_range(struct address_space *mapping, next = start; while (next <= end && pagevec_lookup(&pvec, mapping, next, PAGEVEC_SIZE)) { + mem_cgroup_uncharge_start(); for (i = 0; i < pagevec_count(&pvec); i++) { struct page *page = pvec.pages[i]; pgoff_t page_index = page->index; @@ -247,6 +248,7 @@ void truncate_inode_pages_range(struct address_space *mapping, unlock_page(page); } pagevec_release(&pvec); + mem_cgroup_uncharge_end(); cond_resched(); } |