From: Mike Snitzer <snitzer@redhat.com>
To: dm-devel@redhat.com
Subject: [PATCH 0/8] dm: changes staged in linux-next for 5.1 so far
Date: Tue, 19 Feb 2019 17:17:13 -0500 [thread overview]
Message-ID: <20190219221721.29830-1-snitzer@redhat.com> (raw)
I seized on Mikulas's noclone patches and took it upon myself to add
noclone support to bio-based dm-multipath. Pretty happy with how
things turned out but also open to all review/feedback.
I've verified that all mptest tests pass (with tcmloop, mptest's
nvmefcloop based test setup panics with 5.0-rc6.. I should probably
report and/or fix that).
I've yet to do the before vs after multipath benchmarking to see if
there is a performance win but I'm betting there will be (otherwise I
wouldn't have done this work). I'll backfill benchmarking results
later in the week.
Mike Snitzer (6):
dm: update dm_process_bio() to split bio if in ->make_request_fn()
dm: eliminate 'split_discard_bios' flag from DM target interface
dm: improve noclone bio support
dm: add the ability to attach per-bio-data to dm_noclone bio
dm: improve noclone_endio() to support multipath target
dm mpath: add support for dm_noclone and its per-bio-data
Mikulas Patocka (2):
dm: refactor start_io_acct and end_io_acct
dm: implement noclone optimization for bio-based
drivers/md/dm-cache-target.c | 1 -
drivers/md/dm-core.h | 1 +
drivers/md/dm-linear.c | 1 +
drivers/md/dm-mpath.c | 65 ++++++--
drivers/md/dm-raid.c | 14 +-
drivers/md/dm-stripe.c | 1 +
drivers/md/dm-table.c | 11 ++
drivers/md/dm-thin.c | 1 -
drivers/md/dm-zero.c | 1 +
drivers/md/dm-zoned-target.c | 1 -
drivers/md/dm.c | 357 +++++++++++++++++++++++++++++-------------
drivers/md/dm.h | 1 +
include/linux/device-mapper.h | 22 ++-
13 files changed, 346 insertions(+), 131 deletions(-)
--
2.15.0
next reply other threads:[~2019-02-19 22:17 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-19 22:17 Mike Snitzer [this message]
2019-02-19 22:17 ` [PATCH 1/8] dm: update dm_process_bio() to split bio if in ->make_request_fn() Mike Snitzer
2019-02-19 22:17 ` [PATCH 2/8] dm: eliminate 'split_discard_bios' flag from DM target interface Mike Snitzer
2019-02-19 22:17 ` [PATCH 3/8] dm: refactor start_io_acct and end_io_acct Mike Snitzer
2019-02-19 22:17 ` [PATCH 4/8] dm: implement noclone optimization for bio-based Mike Snitzer
2019-02-19 22:17 ` [PATCH 5/8] dm: improve noclone bio support Mike Snitzer
2019-02-19 22:17 ` [PATCH 6/8] dm: add the ability to attach per-bio-data to dm_noclone bio Mike Snitzer
2019-02-19 22:17 ` [PATCH 7/8] dm: improve noclone_endio() to support multipath target Mike Snitzer
2019-02-20 15:08 ` Mikulas Patocka
2019-02-20 15:14 ` Mike Snitzer
2019-02-19 22:17 ` [PATCH 8/8] dm mpath: add support for dm_noclone and its per-bio-data Mike Snitzer
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