[Cluster-devel] [GFS2 v2 PATCH 1/4] gfs2: add timing info to map_journal_extents
Abhi Das
adas at redhat.com
Mon Sep 10 14:56:25 UTC 2018
Tells you how many milliseconds map_journal_extents takes.
Signed-off-by: Abhi Das <adas at redhat.com>
---
fs/gfs2/bmap.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 03128ed..dddb5a4 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -14,6 +14,7 @@
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
#include <linux/iomap.h>
+#include <linux/ktime.h>
#include "gfs2.h"
#include "incore.h"
@@ -2248,7 +2249,9 @@ int gfs2_map_journal_extents(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd)
unsigned int shift = sdp->sd_sb.sb_bsize_shift;
u64 size;
int rc;
+ ktime_t start, end;
+ start = ktime_get();
lblock_stop = i_size_read(jd->jd_inode) >> shift;
size = (lblock_stop - lblock) << shift;
jd->nr_extents = 0;
@@ -2268,8 +2271,9 @@ int gfs2_map_journal_extents(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd)
lblock += (bh.b_size >> ip->i_inode.i_blkbits);
} while(size > 0);
- fs_info(sdp, "journal %d mapped with %u extents\n", jd->jd_jid,
- jd->nr_extents);
+ end = ktime_get();
+ fs_info(sdp, "journal %d mapped with %u extents in %lldms\n", jd->jd_jid,
+ jd->nr_extents, ktime_ms_delta(end, start));
return 0;
fail:
--
2.4.11
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