xfs: check for a valid error_tag in errortag_add

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Currently we don't check the error_tag when someone's trying to set up
error injection testing.  If userspace passes in a value we don't know
about, send back an error.  This will help xfstests to _notrun a test
that uses error injection to test things like log replay.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Darrick J. Wong 2016-06-21 11:53:28 +10:00 • committed by Dave Chinner

parent 479c641273

commit 128f24d5d9

1 changed files with 3 additions and 0 deletions

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fs/xfs/xfs_error.c

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