lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Btrfs: Add flush barriers on commit

Browse Source 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-01-09 09:23:21 -05:00
parent bcd987feef
commit 21ad10cf3e
3 changed files with 16 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
fs/btrfs/disk-io.c
View File

@@ -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;
}