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cff6df108b
There are several tracepoints for extent buffer locks that are not used
anymore:
* btrfs_tree_read_unlock_blocking
* btrfs_set_lock_blocking_read
* btrfs_set_lock_blocking_write
* btrfs_tree_read_lock_atomic
These stopped being used after we switched extent buffer locks from a
custom implementation to rw semaphores in commit 196d59ab9ccc
("btrfs: switch extent buffer tree lock to rw_semaphore").
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>