From 237c0790e54020d522b8fd23097e8dcafb4e331d Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Thu, 30 Jun 2016 18:49:15 -0700 Subject: f2fs: call SetPageUptodate if needed SetPageUptodate() issues memory barrier, resulting in performance degrdation. Let's avoid that. Signed-off-by: Jaegeuk Kim --- fs/f2fs/inline.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'fs/f2fs/inline.c') diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index e10e958250ff..2cd0edcc4ebc 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -59,7 +59,8 @@ void read_inline_data(struct page *page, struct page *ipage) memcpy(dst_addr, src_addr, MAX_INLINE_DATA); flush_dcache_page(page); kunmap_atomic(dst_addr); - SetPageUptodate(page); + if (!PageUptodate(page)) + SetPageUptodate(page); } bool truncate_inline_inode(struct page *ipage, u64 from) @@ -97,7 +98,8 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page) else read_inline_data(page, ipage); - SetPageUptodate(page); + if (!PageUptodate(page)) + SetPageUptodate(page); f2fs_put_page(ipage, 1); unlock_page(page); return 0; @@ -370,7 +372,8 @@ static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage, NR_INLINE_DENTRY * F2FS_SLOT_LEN); kunmap_atomic(dentry_blk); - SetPageUptodate(page); + if (!PageUptodate(page)) + SetPageUptodate(page); set_page_dirty(page); /* clear inline dir and flag after data writeback */ -- cgit v1.2.3