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| author | Jeff Mahoney <jeffm@suse.com> | 2016-09-20 08:50:21 -0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-09-26 18:08:44 +0200 |
| commit | cea67ab92d3d4da9f2b4141d87cb8664757daca0 (patch) | |
| tree | 75f6575c0d9aecef3d981ff0083222b2c4932be9 /lib | |
| parent | 02794222c4132ac003e7281fb71f4ec1645ffc87 (diff) | |
| download | linux-cea67ab92d3d4da9f2b4141d87cb8664757daca0.tar.gz | |
btrfs: clean the old superblocks before freeing the device
btrfs_rm_device frees the block device but then re-opens it using the saved device name. A race exists between the close and the re-open that allows the block size to be changed. The result is getting stuck forever in the reclaim loop in __getblk_slow. This patch moves the superblock cleanup before closing the block device, which is also consistent with other callers. We also don't need a private copy of dev_name as the whole routine operates under the uuid_mutex. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions