xfs: unregister inode shrinker before freeing filesystem structures

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Currently we don't remove the XFS mount from the shrinker list until
late in the unmount path. By this time, we have already torn down
the internals of the filesystem (e.g. the per-ag structures), and
hence if the shrinker is executed between the teardown and the
unregistering, the shrinker will get NULL per-ag structure pointers
and panic trying to dereference them.

Fix this by removing the xfs mount from the shrinker list before
tearing down it's internal structures.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>

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Dave Chinner 2010-06-25 11:08:40 +10:00 • committed by Alex Elder

parent cca28fb83d

commit 2727ccc950

1 changed files with 5 additions and 1 deletions

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6

fs/xfs/linux-2.6/xfs_super.c

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