diff options
| author | Brian Foster <bfoster@redhat.com> | 2016-09-26 00:34:52 +0200 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-09-26 00:34:52 +0200 |
| commit | 5cd9cee98b256d94443d93a31efc36212a2bd634 (patch) | |
| tree | 4ef1abace997792c0da8b3c8ce40744b7a4332c5 /fs/xfs/xfs_log_recover.c | |
| parent | xfs: update metadata LSN in buffers during log recovery (diff) | |
| download | linux-5cd9cee98b256d94443d93a31efc36212a2bd634.tar.xz linux-5cd9cee98b256d94443d93a31efc36212a2bd634.zip | |
xfs: log recovery tracepoints to track current lsn and buffer submission
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>
Diffstat (limited to 'fs/xfs/xfs_log_recover.c')
| -rw-r--r-- | fs/xfs/xfs_log_recover.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 9667d7d0fb79..846483d56949 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -2804,6 +2804,7 @@ xlog_recover_buffer_pass2( */ lsn = xlog_recover_get_buf_lsn(mp, bp); if (lsn && lsn != -1 && XFS_LSN_CMP(lsn, current_lsn) >= 0) { + trace_xfs_log_recover_buf_skip(log, buf_f); xlog_recover_validate_buf_type(mp, bp, buf_f, NULLCOMMITLSN); goto out_release; } @@ -4319,6 +4320,7 @@ xlog_recover_process_data( if (xlog_header_check_recover(log->l_mp, rhead)) return -EIO; + trace_xfs_log_recover_record(log, rhead, pass); while ((dp < end) && num_logops) { ohead = (struct xlog_op_header *)dp; |