Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

[karo-tx-linux.git] / fs / ext4 / super.c

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5977b356a43531e60adcc54cf46dff972e379899..203f9e4a70be3afe974d492d9ca3c7f5c089738f 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3511,7 +3511,12 @@ 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");
+       /*
+        * The maximum number of concurrent works can be high and
+        * concurrency isn't really necessary.  Limit it to 1.
+        */
+       EXT4_SB(sb)->dio_unwritten_wq =
+               alloc_workqueue("ext4-dio-unwritten", WQ_MEM_RECLAIM, 1);
        if (!EXT4_SB(sb)->dio_unwritten_wq) {
                printk(KERN_ERR "EXT4-fs: failed to create DIO workqueue\n");
                goto failed_mount_wq;