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Commit e9539cff authored by David Sterba's avatar David Sterba
Browse files

btrfs: dev-replace: remove unused members of btrfs_dev_replace 



Lock owner and nesting level have been unused since day 1, probably
copy&pasted from the extent_buffer locking scheme without much thinking.
The locking of device replace is simpler and does not need any lock
nesting.

Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent e17385ca

fs/btrfs/ctree.h

+0 −2
Original line number Diff line number Diff line
@@ -365,8 +365,6 @@ struct btrfs_dev_replace { 
	struct btrfs_device *srcdev;

	struct btrfs_device *tgtdev;



	pid_t lock_owner;

	atomic_t nesting_level;

	struct mutex lock_finishing_cancel_unmount;

	rwlock_t lock;

	atomic_t read_locks;

fs/btrfs/disk-io.c

+0 −2
Original line number Diff line number Diff line
@@ -2154,8 +2154,6 @@ static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info) 


static void btrfs_init_dev_replace_locks(struct btrfs_fs_info *fs_info)

{

	fs_info->dev_replace.lock_owner = 0;

	atomic_set(&fs_info->dev_replace.nesting_level, 0);

	mutex_init(&fs_info->dev_replace.lock_finishing_cancel_unmount);

	rwlock_init(&fs_info->dev_replace.lock);

	atomic_set(&fs_info->dev_replace.read_locks, 0);