From 4a6de50d5408cdc699588119e2338e580adc2b73 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 30 Mar 2016 11:25:31 -0700 Subject: [PATCH] f2fs: use PGP_LOCK to check its truncation Previously, after trylock_page is succeeded, it doesn't check its mapping. In order to fix that, we can just give PGP_LOCK to pagecache_get_page. Signed-off-by: Jaegeuk Kim --- fs/f2fs/node.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 1a33de9d84b1..ade221c9756b 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1202,13 +1202,10 @@ static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) if (!inode) return; - page = pagecache_get_page(inode->i_mapping, 0, FGP_NOWAIT, 0); + page = pagecache_get_page(inode->i_mapping, 0, FGP_LOCK|FGP_NOWAIT, 0); if (!page) goto iput_out; - if (!trylock_page(page)) - goto release_out; - if (!PageUptodate(page)) goto page_out; @@ -1223,9 +1220,7 @@ static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) else set_page_dirty(page); page_out: - unlock_page(page); -release_out: - f2fs_put_page(page, 0); + f2fs_put_page(page, 1); iput_out: iput(inode); } -- 2.39.5