From ae1b7f7d4b9ea587fda95c38301f4e72e8146634 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 23 Sep 2009 20:33:42 +0800 Subject: [PATCH] writeback: cleanup writeback_single_inode() Make the if-else straight in writeback_single_inode(). No behavior change. Cc: Jan Kara Cc: Michael Rubin Cc: Peter Zijlstra Signed-off-by: Fengguang Wu Signed-off-by: Jens Axboe --- fs/fs-writeback.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 551684de1392..916e83489caa 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -449,8 +449,13 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) spin_lock(&inode_lock); inode->i_state &= ~I_SYNC; if (!(inode->i_state & (I_FREEING | I_CLEAR))) { - if (!(inode->i_state & I_DIRTY) && - mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) { + if (inode->i_state & I_DIRTY) { + /* + * Someone redirtied the inode while were writing back + * the pages. + */ + redirty_tail(inode); + } else if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) { /* * We didn't write back all the pages. nfs_writepages() * sometimes bales out without doing anything. Redirty @@ -494,12 +499,6 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc) inode->i_state |= I_DIRTY_PAGES; redirty_tail(inode); } - } else if (inode->i_state & I_DIRTY) { - /* - * Someone redirtied the inode while were writing back - * the pages. - */ - redirty_tail(inode); } else if (atomic_read(&inode->i_count)) { /* * The inode is clean, inuse