Commit 69cc7151 authored Sep 01, 2017 by Liu Bo Committed by David Sterba Oct 30, 2017

Btrfs: move finish_wait out of the loop



If we're still going to wait after schedule(), we don't have to do
finish_wait() to remove our %wait_queue_entry since prepare_to_wait()
won't add the same %wait_queue_entry twice.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent 219d33b2

fs/btrfs/ioctl.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -622,8 +622,8 @@ static void btrfs_wait_for_no_snapshotting_writes(struct btrfs_root *root)
		if (writers)
		schedule();

		finish_wait(&root->subv_writers->wait, &wait);
		} while (writers);
		finish_wait(&root->subv_writers->wait, &wait);
		}

		static int create_snapshot(struct btrfs_root root, struct inode dir,