From 21ad10cf3e9c1ef42e725e5c3a593c49f779a16b Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Wed, 9 Jan 2008 09:23:21 -0500 Subject: Btrfs: Add flush barriers on commit Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'fs/btrfs/disk-io.c') diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index e0940a39ff07..a481b970608c 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -762,10 +762,15 @@ int write_ctree_super(struct btrfs_trans_handle *trans, struct btrfs_root int ret; struct extent_buffer *super = root->fs_info->sb_buffer; struct inode *btree_inode = root->fs_info->btree_inode; + struct super_block *sb = root->fs_info->sb; + if (!btrfs_test_opt(root, NOBARRIER)) + blkdev_issue_flush(sb->s_bdev, NULL); set_extent_buffer_dirty(&BTRFS_I(btree_inode)->extent_tree, super); ret = sync_page_range_nolock(btree_inode, btree_inode->i_mapping, super->start, super->len); + if (!btrfs_test_opt(root, NOBARRIER)) + blkdev_issue_flush(sb->s_bdev, NULL); return ret; } -- cgit v1.2.3