diff options
| author | David Sterba | 2019-05-02 16:53:47 +0200 |
|---|---|---|
| committer | David Sterba | 2019-07-02 12:30:47 +0200 |
| commit | 00801ae4bb2be5f5af46502ef239ac5f4b536094 (patch) | |
| tree | d9835c3f4d44ecc3c4aa15c3707c4aea1a243ee3 /fs/btrfs/locking.c | |
| parent | btrfs: switch extent_buffer spinning_writers from atomic to int (diff) | |
| download | kernel-qcow2-linux-00801ae4bb2be5f5af46502ef239ac5f4b536094.tar.gz kernel-qcow2-linux-00801ae4bb2be5f5af46502ef239ac5f4b536094.tar.xz kernel-qcow2-linux-00801ae4bb2be5f5af46502ef239ac5f4b536094.zip | |
btrfs: switch extent_buffer write_locks from atomic to int
The write_locks is either 0 or 1 and always updated under the lock,
so we don't need the atomic_t semantics.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/locking.c')
| -rw-r--r-- | fs/btrfs/locking.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c index 270667627977..98fccce4208c 100644 --- a/fs/btrfs/locking.c +++ b/fs/btrfs/locking.c @@ -58,17 +58,17 @@ static void btrfs_assert_tree_read_locked(struct extent_buffer *eb) static void btrfs_assert_tree_write_locks_get(struct extent_buffer *eb) { - atomic_inc(&eb->write_locks); + eb->write_locks++; } static void btrfs_assert_tree_write_locks_put(struct extent_buffer *eb) { - atomic_dec(&eb->write_locks); + eb->write_locks--; } void btrfs_assert_tree_locked(struct extent_buffer *eb) { - BUG_ON(!atomic_read(&eb->write_locks)); + BUG_ON(!eb->write_locks); } #else |