Updated man page section about sunit and swidth.

diff --git a/man/man8/mkfs.xfs.8 b/man/man8/mkfs.xfs.8
index 8d0fe48c0fcf0b76aad80dd044b841c3e36cda9d..7e9f3939b752d44b909b1b585203bb3f33bdc920 100644 (file)
--- a/man/man8/mkfs.xfs.8
+++ b/man/man8/mkfs.xfs.8
@@ -163,6 +163,13 @@ The stripe width will be the preferred iosize returned in the
 .IR stat (2)
 system call.
 .IP
+When a filesystem is created on an LVM or an MD device, mkfs.xfs will
+automatically query the logical volume for appropriate 
+.B sunit
+and
+.B swidth
+values.
+.IP
 The
 .B unwritten
 suboption is used to specify whether unwritten extents are flagged as such,