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| author | Mingming Cao <cmm@us.ibm.com> | 2011-03-05 11:52:45 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-03-05 11:52:45 -0500 |
| commit | 198868f35de99e7197829314076e5465c37e4cc5 (patch) | |
| tree | 04d6044250667f150787bedf68db6ac3732458c9 | |
| parent | b616844310a6c8a4ab405d3436bbb6e53cfd852f (diff) | |
ext4: Use single thread to perform DIO unwritten convertion
While running ext4 testing on multiple core, we found there are per
cpu ext4-dio-unwritten threads processing conversion from unwritten
extents to written for IOs completed from async direct IO patch. Per
filesystem is enough, we don't need per cpu threads to work on
conversion.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
| -rw-r--r-- | fs/ext4/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9eaec22aa08..b357c2700d7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3514,7 +3514,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) percpu_counter_set(&sbi->s_dirtyblocks_counter, 0); no_journal: - EXT4_SB(sb)->dio_unwritten_wq = create_workqueue("ext4-dio-unwritten"); + EXT4_SB(sb)->dio_unwritten_wq = create_singlethread_workqueue("ext4-dio-unwritten"); if (!EXT4_SB(sb)->dio_unwritten_wq) { printk(KERN_ERR "EXT4-fs: failed to create DIO workqueue\n"); goto failed_mount_wq; |