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Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 92caa8035f3..a6b83744b05 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -579,6 +579,10 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
async->bio_flags = bio_flags;
atomic_inc(&fs_info->nr_async_submits);
+
+ if (rw & (1 << BIO_RW_SYNCIO))
+ btrfs_set_work_high_prio(&async->work);
+
btrfs_queue_worker(&fs_info->workers, &async->work);
#if 0
int limit = btrfs_async_submit_limit(fs_info);
@@ -656,6 +660,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
return btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,
mirror_num, 0);
}
+
/*
* kthread helpers are used to submit writes so that checksumming
* can happen in parallel across all CPUs
@@ -2095,10 +2100,10 @@ static int write_dev_supers(struct btrfs_device *device,
device->barriers = 0;
get_bh(bh);
lock_buffer(bh);
- ret = submit_bh(WRITE, bh);
+ ret = submit_bh(WRITE_SYNC, bh);
}
} else {
- ret = submit_bh(WRITE, bh);
+ ret = submit_bh(WRITE_SYNC, bh);
}
if (!ret && wait) {