GFS2: Expose UUID via sysfs/uevent

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Since we have a UUID, we ought to expose it to the user via sysfs
and uevents. We already have the fs name in both of these places
(a combination of the lock proto and lock table name) so if we add
the UUID as well, we have a full set.

For older filesystems (i.e. those created before mkfs.gfs2 was writing
UUIDs by default) the sysfs file will appear zero length, and no UUID
env var will be added to the uevents.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

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Steven Whitehouse 2009-02-10 13:48:30 +00:00 • committed by Steven Whitehouse

parent f15ab5619d

commit 02e3cc70ec

3 changed files with 39 additions and 0 deletions

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1

fs/gfs2/incore.h

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fs/gfs2/ops_fstype.c

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37

fs/gfs2/sys.c

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