| commit | 3009a62f3b18230a000d1a91e9a676036487e834 | [log] [tgz] |
|---|---|---|
| author | David Sterba <dsterba@suse.com> | Wed Mar 21 01:31:04 2018 +0100 |
| committer | David Sterba <dsterba@suse.com> | Mon May 28 18:07:25 2018 +0200 |
| tree | 87182c14f50c753c4b408b103c7bdc2215ac84c3 | |
| parent | dccdb07bc996e9c8de80d06813163ca08288bf73 [diff] |
btrfs: track running balance in a simpler way Currently fs_info::balance_running is 0 or 1 and does not use the semantics of atomics. The pause and cancel check for 0, that can happen only after __btrfs_balance exits for whatever reason. Parallel calls to balance ioctl may enter btrfs_ioctl_balance multiple times but will block on the balance_mutex that protects the fs_info::flags bit. Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>