| commit | 619c8c763928841b1112e1d417f88bc1d44daecb | [log] [tgz] |
|---|---|---|
| author | Ian Kent <raven@themaw.net> | Mon Nov 22 02:21:38 2010 +0000 |
| committer | Chris Mason <chris.mason@oracle.com> | Sat Nov 27 13:37:44 2010 -0500 |
| tree | 23fc73cf043faac2cdb15a0b22e6e9e29a69797a | |
| parent | bc1cbf1f86aa2501efa9ca637c736fce6bcc4b1d [diff] |
Btrfs - fix race between btrfs_get_sb() and umount When mounting a btrfs file system btrfs_test_super() may attempt to use sb->s_fs_info, the btrfs root, of a super block that is going away and that has had the btrfs root set to NULL in its ->put_super(). But if the super block is going away it cannot be an existing super block so we can return false in this case. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Chris Mason <chris.mason@oracle.com>