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Btrfs: Release uuid_mutex for shrink during device delete 

Device scanning waits on the uuid_mutex, which can result in a very long
wait if dev delete is shrinking the device.

Signed-off-by: Carey Underwood <cwillu@cwillu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
wifi-calibration
Carey Underwood 2013-03-04 16:37:06 -06:00 committed by Chris Mason
parent b2aaaa3b8c
commit d790155457
1 changed files with 2 additions and 0 deletions
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2
fs/btrfs/volumes.c
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@ -1562,7 +1562,9 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
clear_super = true;
}
mutex_unlock(&uuid_mutex);
ret = btrfs_shrink_device(device, 0);
mutex_lock(&uuid_mutex);
if (ret)
goto error_undo;