[Cluster-devel] [GFS2 PATCH 05/18] gfs2: log which portion of the journal is replayed

[Andreas Gruenbacher]

From: Bob Peterson <rpeterso at redhat.com>

When a journal is replayed, gfs2 logs a message similar to:

jid=X: Replaying journal...

This patch adds the tail and block number so that the range of the
replayed block is also printed. These values will match the values
shown if the journal is dumped with gfs2_edit -p journalX. The
resulting output looks something like this:

jid=1: Replaying journal...0x28b7 to 0x2beb

This will allow us to better debug file system corruption problems.

Signed-off-by: Bob Peterson <rpeterso at redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba at redhat.com>
---
 fs/gfs2/recovery.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 2299a3fa1911..c529f8749a89 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -388,7 +388,8 @@ void gfs2_recover_func(struct work_struct *work)
 		}
 
 		t_tlck = ktime_get();
-		fs_info(sdp, "jid=%u: Replaying journal...\n", jd->jd_jid);
+		fs_info(sdp, "jid=%u: Replaying journal...0x%x to 0x%x\n",
+			jd->jd_jid, head.lh_tail, head.lh_blkno);
 
 		for (pass = 0; pass < 2; pass++) {
 			lops_before_scan(jd, &head, pass);
-- 
2.20.1