GFS2: Log the reason for log flushes in every log header

This patch just adds the capability for GFS2 to track which function
called gfs2_log_flush. This should make it easier to diagnose
problems based on the sequence of events found in the journals.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 7aec6d3434fa..c75cacaa349b 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -117,7 +117,8 @@ void gfs2_trans_end(struct gfs2_sbd *sdp)
         up_read(&sdp->sd_log_flush_lock);
 
         if (sdp->sd_vfs->s_flags & SB_SYNCHRONOUS)
-                gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL);
+                gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
+                               GFS2_LFC_TRANS_END);
         if (alloced)
                 sb_end_intwrite(sdp->sd_vfs);
 }