diff options
| author | Gabriel Krisman Bertazi <krisman@collabora.com> | 2020-04-30 23:48:29 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2020-05-15 17:29:36 +0300 |
| commit | 087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b (patch) | |
| tree | a3ecdcc75df1e1a714466302ebb9f4f29d58bfd9 /drivers/md/dm-mpath.c | |
| parent | 48338daaa00e6137a43fa5d0e54b763aa34f450b (diff) | |
| download | linux-087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b.tar.xz | |
dm mpath: pass IO start time to path selector
The HST path selector needs this information to perform path
prediction. For request-based mpath, struct request's io_start_time_ns
is used, while for bio-based, use the start_time stored in dm_io.
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-mpath.c')
| -rw-r--r-- | drivers/md/dm-mpath.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index e0c800cf87a9..74246d7c7d68 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -567,7 +567,8 @@ static void multipath_release_clone(struct request *clone, if (pgpath && pgpath->pg->ps.type->end_io) pgpath->pg->ps.type->end_io(&pgpath->pg->ps, &pgpath->path, - mpio->nr_bytes); + mpio->nr_bytes, + clone->io_start_time_ns); } blk_put_request(clone); @@ -1617,7 +1618,8 @@ static int multipath_end_io(struct dm_target *ti, struct request *clone, struct path_selector *ps = &pgpath->pg->ps; if (ps->type->end_io) - ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes); + ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes, + clone->io_start_time_ns); } return r; @@ -1661,7 +1663,8 @@ done: struct path_selector *ps = &pgpath->pg->ps; if (ps->type->end_io) - ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes); + ps->type->end_io(ps, &pgpath->path, mpio->nr_bytes, + dm_start_time_ns_from_clone(clone)); } return r; |