xfs: Don't reuse the same transaction ID for duplicated transactions.
commit524ee36fa4661d745a467c3bba0e1034fd1f4b77
authorDave Chinner <dchinner@redhat.com>
Fri, 7 May 2010 01:05:05 +0000 (7 11:05 +1000)
committerAlex Elder <aelder@sgi.com>
Mon, 24 May 2010 15:33:10 +0000 (24 10:33 -0500)
treec14176bd3f02e40f1fbdffc137b6f4d49b8e6d5e
parentb4ed4626a9775cd8cb77209280d24839526f94f2
xfs: Don't reuse the same transaction ID for duplicated transactions.

The transaction ID is written into the log as the unique identifier
for transactions during recover. When duplicating a transaction, we
reuse the log ticket, which means it has the same transaction ID as
the previous transaction.

Rather than regenerating a random transaction ID for the duplicated
transaction, just add one to the current ID so that duplicated
transaction can be easily spotted in the log and during recovery
during problem diagnosis.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
fs/xfs/xfs_log.c