xfs: log recovery tracepoints to track current lsn and buffer submission

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Log recovery has particular rules around buffer submission along with
tricky corner cases where independent transactions can share an LSN. As
such, it can be difficult to follow when/why buffers are submitted
during recovery.

Add a couple tracepoints to post the current LSN of a record when a new
record is being processed and when a buffer is being skipped due to LSN
ordering. Also, update the recover item class to include the LSN of the
current transaction for the item being processed.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

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Brian Foster 2016-09-26 08:34:52 +10:00 • committed by Dave Chinner

parent 60a4a22251

commit 5cd9cee98b

2 changed files with 31 additions and 2 deletions

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2

fs/xfs/xfs_log_recover.c

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31

fs/xfs/xfs_trace.h

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