1. 19 3月, 2014 2 次提交
  2. 26 2月, 2014 1 次提交
  3. 30 1月, 2014 1 次提交
  4. 13 1月, 2014 1 次提交
  5. 09 1月, 2014 3 次提交
  6. 24 11月, 2013 5 次提交
    • K
      block: Introduce new bio_split() · 20d0189b
      Kent Overstreet 提交于
      The new bio_split() can split arbitrary bios - it's not restricted to
      single page bios, like the old bio_split() (previously renamed to
      bio_pair_split()). It also has different semantics - it doesn't allocate
      a struct bio_pair, leaving it up to the caller to handle completions.
      
      Then convert the existing bio_pair_split() users to the new bio_split()
      - and also nvme, which was open coding bio splitting.
      
      (We have to take that BUG_ON() out of bio_integrity_trim() because this
      bio_split() needs to use it, and there's no reason it has to be used on
      bios marked as cloned; BIO_CLONED doesn't seem to have clearly
      documented semantics anyways.)
      Signed-off-by: NKent Overstreet <kmo@daterainc.com>
      Cc: Jens Axboe <axboe@kernel.dk>
      Cc: Martin K. Petersen <martin.petersen@oracle.com>
      Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
      Cc: Keith Busch <keith.busch@intel.com>
      Cc: Vishal Verma <vishal.l.verma@intel.com>
      Cc: Jiri Kosina <jkosina@suse.cz>
      Cc: Neil Brown <neilb@suse.de>
      20d0189b
    • K
      block: Add bio_clone_fast() · 59d276fe
      Kent Overstreet 提交于
      bio_clone() just got more expensive - however, most users of bio_clone()
      don't actually need to modify the biovec. If they aren't modifying the
      biovec, and they can guarantee that the original bio isn't freed before
      the clone (also true in most cases), we can just point the clone at the
      original bio's biovec.
      Signed-off-by: NKent Overstreet <kmo@daterainc.com>
      59d276fe
    • K
      block: Convert bio_for_each_segment() to bvec_iter · 7988613b
      Kent Overstreet 提交于
      More prep work for immutable biovecs - with immutable bvecs drivers
      won't be able to use the biovec directly, they'll need to use helpers
      that take into account bio->bi_iter.bi_bvec_done.
      
      This updates callers for the new usage without changing the
      implementation yet.
      Signed-off-by: NKent Overstreet <kmo@daterainc.com>
      Cc: Jens Axboe <axboe@kernel.dk>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: "Ed L. Cashin" <ecashin@coraid.com>
      Cc: Nick Piggin <npiggin@kernel.dk>
      Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
      Cc: Jiri Kosina <jkosina@suse.cz>
      Cc: Paul Clements <Paul.Clements@steeleye.com>
      Cc: Jim Paris <jim@jtan.com>
      Cc: Geoff Levand <geoff@infradead.org>
      Cc: Yehuda Sadeh <yehuda@inktank.com>
      Cc: Sage Weil <sage@inktank.com>
      Cc: Alex Elder <elder@inktank.com>
      Cc: ceph-devel@vger.kernel.org
      Cc: Joshua Morris <josh.h.morris@us.ibm.com>
      Cc: Philip Kelleher <pjk1939@linux.vnet.ibm.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Jeremy Fitzhardinge <jeremy@goop.org>
      Cc: Neil Brown <neilb@suse.de>
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: linux390@de.ibm.com
      Cc: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
      Cc: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
      Cc: support@lsi.com
      Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Alexander Viro <viro@zeniv.linux.org.uk>
      Cc: Steven Whitehouse <swhiteho@redhat.com>
      Cc: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Guo Chao <yan@linux.vnet.ibm.com>
      Cc: Asai Thambi S P <asamymuthupa@micron.com>
      Cc: Selvan Mani <smani@micron.com>
      Cc: Sam Bradshaw <sbradshaw@micron.com>
      Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
      Cc: Keith Busch <keith.busch@intel.com>
      Cc: Stephen Hemminger <shemminger@vyatta.com>
      Cc: Quoc-Son Anh <quoc-sonx.anh@intel.com>
      Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
      Cc: Nitin Gupta <ngupta@vflare.org>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Jerome Marchand <jmarchan@redhat.com>
      Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
      Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
      Cc: Mike Snitzer <snitzer@redhat.com>
      Cc: Vivek Goyal <vgoyal@redhat.com>
      Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
      Cc: Chris Metcalf <cmetcalf@tilera.com>
      Cc: Jan Kara <jack@suse.cz>
      Cc: linux-m68k@lists.linux-m68k.org
      Cc: linuxppc-dev@lists.ozlabs.org
      Cc: drbd-user@lists.linbit.com
      Cc: nbd-general@lists.sourceforge.net
      Cc: cbe-oss-dev@lists.ozlabs.org
      Cc: xen-devel@lists.xensource.com
      Cc: virtualization@lists.linux-foundation.org
      Cc: linux-raid@vger.kernel.org
      Cc: linux-s390@vger.kernel.org
      Cc: DL-MPTFusionLinux@lsi.com
      Cc: linux-scsi@vger.kernel.org
      Cc: devel@driverdev.osuosl.org
      Cc: linux-fsdevel@vger.kernel.org
      Cc: cluster-devel@redhat.com
      Cc: linux-mm@kvack.org
      Acked-by: NGeoff Levand <geoff@infradead.org>
      7988613b
    • K
      block: Abstract out bvec iterator · 4f024f37
      Kent Overstreet 提交于
      Immutable biovecs are going to require an explicit iterator. To
      implement immutable bvecs, a later patch is going to add a bi_bvec_done
      member to this struct; for now, this patch effectively just renames
      things.
      Signed-off-by: NKent Overstreet <kmo@daterainc.com>
      Cc: Jens Axboe <axboe@kernel.dk>
      Cc: Geert Uytterhoeven <geert@linux-m68k.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: "Ed L. Cashin" <ecashin@coraid.com>
      Cc: Nick Piggin <npiggin@kernel.dk>
      Cc: Lars Ellenberg <drbd-dev@lists.linbit.com>
      Cc: Jiri Kosina <jkosina@suse.cz>
      Cc: Matthew Wilcox <willy@linux.intel.com>
      Cc: Geoff Levand <geoff@infradead.org>
      Cc: Yehuda Sadeh <yehuda@inktank.com>
      Cc: Sage Weil <sage@inktank.com>
      Cc: Alex Elder <elder@inktank.com>
      Cc: ceph-devel@vger.kernel.org
      Cc: Joshua Morris <josh.h.morris@us.ibm.com>
      Cc: Philip Kelleher <pjk1939@linux.vnet.ibm.com>
      Cc: Rusty Russell <rusty@rustcorp.com.au>
      Cc: "Michael S. Tsirkin" <mst@redhat.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Jeremy Fitzhardinge <jeremy@goop.org>
      Cc: Neil Brown <neilb@suse.de>
      Cc: Alasdair Kergon <agk@redhat.com>
      Cc: Mike Snitzer <snitzer@redhat.com>
      Cc: dm-devel@redhat.com
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: linux390@de.ibm.com
      Cc: Boaz Harrosh <bharrosh@panasas.com>
      Cc: Benny Halevy <bhalevy@tonian.com>
      Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
      Cc: Alexander Viro <viro@zeniv.linux.org.uk>
      Cc: Chris Mason <chris.mason@fusionio.com>
      Cc: "Theodore Ts'o" <tytso@mit.edu>
      Cc: Andreas Dilger <adilger.kernel@dilger.ca>
      Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com>
      Cc: Steven Whitehouse <swhiteho@redhat.com>
      Cc: Dave Kleikamp <shaggy@kernel.org>
      Cc: Joern Engel <joern@logfs.org>
      Cc: Prasad Joshi <prasadjoshi.linux@gmail.com>
      Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
      Cc: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp>
      Cc: Mark Fasheh <mfasheh@suse.com>
      Cc: Joel Becker <jlbec@evilplan.org>
      Cc: Ben Myers <bpm@sgi.com>
      Cc: xfs@oss.sgi.com
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
      Cc: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
      Cc: Ben Hutchings <ben@decadent.org.uk>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Guo Chao <yan@linux.vnet.ibm.com>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Asai Thambi S P <asamymuthupa@micron.com>
      Cc: Selvan Mani <smani@micron.com>
      Cc: Sam Bradshaw <sbradshaw@micron.com>
      Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
      Cc: "Roger Pau Monné" <roger.pau@citrix.com>
      Cc: Jan Beulich <jbeulich@suse.com>
      Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
      Cc: Ian Campbell <Ian.Campbell@citrix.com>
      Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
      Cc: Christian Borntraeger <borntraeger@de.ibm.com>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Jiang Liu <jiang.liu@huawei.com>
      Cc: Nitin Gupta <ngupta@vflare.org>
      Cc: Jerome Marchand <jmarchand@redhat.com>
      Cc: Joe Perches <joe@perches.com>
      Cc: Peng Tao <tao.peng@emc.com>
      Cc: Andy Adamson <andros@netapp.com>
      Cc: fanchaoting <fanchaoting@cn.fujitsu.com>
      Cc: Jie Liu <jeff.liu@oracle.com>
      Cc: Sunil Mushran <sunil.mushran@gmail.com>
      Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
      Cc: Namjae Jeon <namjae.jeon@samsung.com>
      Cc: Pankaj Kumar <pankaj.km@samsung.com>
      Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
      Cc: Mel Gorman <mgorman@suse.de>6
      4f024f37
    • K
      bcache: Kill unaligned bvec hack · ed9c47be
      Kent Overstreet 提交于
      Bcache has a hack to avoid cloning the biovec if it's all full pages -
      but with immutable biovecs coming this won't be necessary anymore.
      
      For now, we remove the special case and always clone the bvec array so
      that the immutable biovec patches are simpler.
      Signed-off-by: NKent Overstreet <kmo@daterainc.com>
      ed9c47be
  7. 11 11月, 2013 23 次提交
  8. 23 10月, 2013 1 次提交
  9. 11 10月, 2013 1 次提交
  10. 25 9月, 2013 1 次提交
    • K
      bcache: Fix flushes in writeback mode · c0f04d88
      Kent Overstreet 提交于
      In writeback mode, when we get a cache flush we need to make sure we
      issue a flush to the backing device.
      
      The code for sending down an extra flush was wrong - by cloning the bio
      we were probably getting flags that didn't make sense for a bare flush,
      and also the old code was firing for FUA bios, for which we don't need
      to send a flush to the backing device.
      
      This was causing data corruption somehow - the mechanism was never
      determined, but this patch fixes it for the users that were seeing it.
      Signed-off-by: NKent Overstreet <kmo@daterainc.com>
      Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      c0f04d88
  11. 12 7月, 2013 1 次提交