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(parent: 81353d5) | patch
btrfs: remove unnecessary mutex lock in qgroup_account_snapshot
authorDavid Sterba <dsterba@suse.com>
Mon, 13 Feb 2017 13:07:02 +0000 (14:07 +0100)
committerDavid Sterba <dsterba@suse.com>
Fri, 17 Feb 2017 11:03:50 +0000 (12:03 +0100)
commit9ea6e2b54847a08da87c118e6a197f27eb9b0159
treeb61f91307e3a36f68523e058ce76e3e6964a2a7ftree | snapshot
parent81353d50f5274e435105391b669e05aaf62c8609commit | diff
btrfs: remove unnecessary mutex lock in qgroup_account_snapshot

The quota status used to be tracked as a variable, so the mutex was
needed (until "Btrfs: add a flags field to btrfs_fs_info" afcdd129e05a9).
Since the status is a bit modified atomically and we don't hold the
mutex beyond the check, we can drop it.

Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/transaction.c diff | blob | history
Domain: System / Kernel;