Messages in this thread Patch in this message | | | From | Minchan Kim <> | Subject | [RFC 4/5] swap: Remove unnecessary page release | Date | Sat, 18 Dec 2010 02:13:39 +0900 |
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This patch series changes remove_from_page_cache's page ref counting rule. page cache ref count is decreased in remove_from_page_cache. So we don't need call again in caller context.
Cc:Hugh Dickins <hughd@google.com> Cc: linux-mm@kvack.org Signed-off-by: Minchan Kim <minchan.kim@gmail.com> --- mm/shmem.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/mm/shmem.c b/mm/shmem.c index fa9acc9..16800f2 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1091,7 +1091,6 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) spin_unlock(&info->lock); swap_shmem_alloc(swap); BUG_ON(page_mapped(page)); - page_cache_release(page); /* pagecache ref */ swap_writepage(page, wbc); if (inode) { mutex_lock(&shmem_swaplist_mutex); -- 1.7.0.4
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