xfs_db: document the rtsb command

Document the rtsb command, which positions the debugger at the
superblock for the realtime volume, if there is one.

Found by xfs/514.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

diff --git a/man/man8/xfs_db.8 b/man/man8/xfs_db.8
index 1e85aebbb5b27c9f47bb3778fddc7b9db4b270d1..ba2a68211ef21f8d30bcf8cd11bcd4c7f291fe34 100644 (file)
--- a/man/man8/xfs_db.8
+++ b/man/man8/xfs_db.8
@@ -1310,6 +1310,10 @@ maximum free extent length is 2^21 rtextents:
 
 .B rtconvert rsumlog 21 rsuminfo 809 rsumblock 10 rbmblock
 
+.TP
+.B rtsb
+Set current address to the superblock header at the start of the realtime
+volume.
 .TP
 .BI "sb [" agno ]
 Set current address to SB header in allocation group