From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Snitzer Subject: [PATCH 0/8] dm: changes staged in linux-next for 5.1 so far Date: Tue, 19 Feb 2019 17:17:13 -0500 Message-ID: <20190219221721.29830-1-snitzer@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: dm-devel@redhat.com List-Id: dm-devel.ids 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