generic/733: add commit ID for btrfs

As of commit 5d6f0e9890ed ("btrfs: stop locking the source extent range
during reflink"), btrfs now does reflink operations without locking the
source file's range, allowing concurrent reads in the whole source file.
So update the test to annotate that commit.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>
1 file changed