| commit | c5593ca3c8a82eb397804e22a34d2c7061b55f56 | [log] [tgz] |
|---|---|---|
| author | David Sterba <dsterba@suse.com> | Fri Jun 16 00:09:21 2017 +0200 |
| committer | David Sterba <dsterba@suse.com> | Mon Jan 22 16:08:12 2018 +0100 |
| tree | c5e197d2ff5f6b6065408dd346a4d09a1c01451f | |
| parent | 08ffcae8c92e7154ba5fb78c926463a21cba6501 [diff] |
btrfs: switch to RCU for device traversal in btrfs_ioctl_dev_info We don't need to use the mutex as we do not modify the devices nor the list itself and just read some information: does not change during device lifetime: - devid - uuid - name (ie. the path) may change in parallel to the ioctl call, but can lead only to reporting inacurracy: - bytes_used - total_bytes Signed-off-by: David Sterba <dsterba@suse.com>