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| author | Wu Fengguang <fengguang.wu@intel.com> | 2009-09-23 20:33:42 +0800 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-09-25 18:08:25 +0200 |
| commit | ae1b7f7d4b9ea587fda95c38301f4e72e8146634 (patch) | |
| tree | 7b6861974a64c2251f3f8abd7f4edc4f7434a02c /fs/fs-writeback.c | |
| parent | 7fbdea32328312c65870c397a0a436c3226c8631 (diff) | |
| download | lwn-ae1b7f7d4b9ea587fda95c38301f4e72e8146634.tar.gz lwn-ae1b7f7d4b9ea587fda95c38301f4e72e8146634.zip | |
writeback: cleanup writeback_single_inode()
Make the if-else straight in writeback_single_inode().
No behavior change.
Cc: Jan Kara <jack@suse.cz>
Cc: Michael Rubin <mrubin@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 15 |
1 files 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 |