diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-02-08 08:55:43 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-02-08 08:55:46 +0100 |
| commit | 6d3e0907b8b239d16720d144e2675ecf10d3bc3b (patch) | |
| tree | e0b0743b5f6f82b057cafc4f3687396a6e01a0b4 /fs/ext4/fsync.c | |
| parent | 23577256953c870de9b724c3a2611ce7be6a1e4e (diff) | |
| parent | 50200df462023b187d80a99a52f5f2cfe3c86c26 (diff) | |
Merge branch 'sched/urgent' into sched/core
Merge reason: Merge dependent fix, update to latest -rc.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/ext4/fsync.c')
| -rw-r--r-- | fs/ext4/fsync.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c index 0b22497d92e1..98bd140aad01 100644 --- a/fs/ext4/fsync.c +++ b/fs/ext4/fsync.c @@ -88,9 +88,21 @@ int ext4_sync_file(struct file *file, struct dentry *dentry, int datasync) return ext4_force_commit(inode->i_sb); commit_tid = datasync ? ei->i_datasync_tid : ei->i_sync_tid; - if (jbd2_log_start_commit(journal, commit_tid)) + if (jbd2_log_start_commit(journal, commit_tid)) { + /* + * When the journal is on a different device than the + * fs data disk, we need to issue the barrier in + * writeback mode. (In ordered mode, the jbd2 layer + * will take care of issuing the barrier. In + * data=journal, all of the data blocks are written to + * the journal device.) + */ + if (ext4_should_writeback_data(inode) && + (journal->j_fs_dev != journal->j_dev) && + (journal->j_flags & JBD2_BARRIER)) + blkdev_issue_flush(inode->i_sb->s_bdev, NULL); jbd2_log_wait_commit(journal, commit_tid); - else if (journal->j_flags & JBD2_BARRIER) + } else if (journal->j_flags & JBD2_BARRIER) blkdev_issue_flush(inode->i_sb->s_bdev, NULL); return ret; } |