linux-toradex.git/drivers/s390/block, branch v3.14.4

Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

2014-01-30T19:19:05+00:00

Pull core block IO changes from Jens Axboe:
 "The major piece in here is the immutable bio_ve series from Kent, the
  rest is fairly minor.  It was supposed to go in last round, but
  various issues pushed it to this release instead.  The pull request
  contains:

   - Various smaller blk-mq fixes from different folks.  Nothing major
     here, just minor fixes and cleanups.

   - Fix for a memory leak in the error path in the block ioctl code
     from Christian Engelmayer.

   - Header export fix from CaiZhiyong.

   - Finally the immutable biovec changes from Kent Overstreet.  This
     enables some nice future work on making arbitrarily sized bios
     possible, and splitting more efficient.  Related fixes to immutable
     bio_vecs:

        - dm-cache immutable fixup from Mike Snitzer.
        - btrfs immutable fixup from Muthu Kumar.

  - bio-integrity fix from Nic Bellinger, which is also going to stable"

* 'for-3.14/core' of git://git.kernel.dk/linux-block: (44 commits)
  xtensa: fixup simdisk driver to work with immutable bio_vecs
  block/blk-mq-cpu.c: use hotcpu_notifier()
  blk-mq: for_each_* macro correctness
  block: Fix memory leak in rw_copy_check_uvector() handling
  bio-integrity: Fix bio_integrity_verify segment start bug
  block: remove unrelated header files and export symbol
  blk-mq: uses page->list incorrectly
  blk-mq: use __smp_call_function_single directly
  btrfs: fix missing increment of bi_remaining
  Revert "block: Warn and free bio if bi_end_io is not set"
  block: Warn and free bio if bi_end_io is not set
  blk-mq: fix initializing request's start time
  block: blk-mq: don't export blk_mq_free_queue()
  block: blk-mq: make blk_sync_queue support mq
  block: blk-mq: support draining mq queue
  dm cache: increment bi_remaining when bi_end_io is restored
  block: fixup for generic bio chaining
  block: Really silence spurious compiler warnings
  block: Silence spurious compiler warnings
  block: Kill bio_pair_split()
  ...

s390/xpram: don't modify module parameters

2014-01-22T13:02:15+00:00

During parsing of the sizes array the pointer to the particular
string is lost. Keep it by using an extra pointer to store the end
position of the parsed string. Keeping these parameters accessible
can be helpful for debugging purposes and for userspace reading
the parameters at runtime via sysfs. Also this will ensure that the
memory is freed at module unload time.

Reported-by: Michael Veigel 
Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

s390: Fix misspellings using 'codespell' tool

2014-01-16T15:40:13+00:00

Signed-off-by: Hendrik Brueckner 
Signed-off-by: Martin Schwidefsky

Merge tag 'v3.13-rc6' into for-3.14/core

2013-12-31T16:51:02+00:00

Needed to bring blk-mq uptodate, since changes have been going in
since for-3.14/core was established.

Fixup merge issues related to the immutable biovec changes.

Signed-off-by: Jens Axboe 

Conflicts:
	block/blk-flush.c
	fs/btrfs/check-integrity.c
	fs/btrfs/extent_io.c
	fs/btrfs/scrub.c
	fs/logfs/dev_bdev.c

s390/dasd: fix memory leak caused by dangling references to request_queue

2013-12-02T14:31:06+00:00

After the call to del_gendisk, the gendisk still holds a reference to
its request_queue. We must not modify the gendisks queue pointer
before the put_disk call, or the gendisk_release function cannot
release the reference and the memory for the request_queue structure
is lost.

Signed-off-by: Stefan Weinhuber 
Signed-off-by: Martin Schwidefsky

block: Convert bio_for_each_segment() to bvec_iter

2013-11-24T06:33:49+00:00

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: Kent Overstreet 
Cc: Jens Axboe 
Cc: Geert Uytterhoeven 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: "Ed L. Cashin" 
Cc: Nick Piggin 
Cc: Lars Ellenberg 
Cc: Jiri Kosina 
Cc: Paul Clements 
Cc: Jim Paris 
Cc: Geoff Levand 
Cc: Yehuda Sadeh 
Cc: Sage Weil 
Cc: Alex Elder 
Cc: ceph-devel@vger.kernel.org
Cc: Joshua Morris 
Cc: Philip Kelleher 
Cc: Konrad Rzeszutek Wilk 
Cc: Jeremy Fitzhardinge 
Cc: Neil Brown 
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: linux390@de.ibm.com
Cc: Nagalakshmi Nandigama 
Cc: Sreekanth Reddy 
Cc: support@lsi.com
Cc: "James E.J. Bottomley" 
Cc: Greg Kroah-Hartman 
Cc: Alexander Viro 
Cc: Steven Whitehouse 
Cc: Herton Ronaldo Krzesinski 
Cc: Tejun Heo 
Cc: Andrew Morton 
Cc: Guo Chao 
Cc: Asai Thambi S P 
Cc: Selvan Mani 
Cc: Sam Bradshaw 
Cc: Matthew Wilcox 
Cc: Keith Busch 
Cc: Stephen Hemminger 
Cc: Quoc-Son Anh 
Cc: Sebastian Ott 
Cc: Nitin Gupta 
Cc: Minchan Kim 
Cc: Jerome Marchand 
Cc: Seth Jennings 
Cc: "Martin K. Petersen" 
Cc: Mike Snitzer 
Cc: Vivek Goyal 
Cc: "Darrick J. Wong" 
Cc: Chris Metcalf 
Cc: Jan Kara 
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: Geoff Levand

block: Abstract out bvec iterator

2013-11-24T06:33:47+00:00

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: Kent Overstreet 
Cc: Jens Axboe 
Cc: Geert Uytterhoeven 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: "Ed L. Cashin" 
Cc: Nick Piggin 
Cc: Lars Ellenberg 
Cc: Jiri Kosina 
Cc: Matthew Wilcox 
Cc: Geoff Levand 
Cc: Yehuda Sadeh 
Cc: Sage Weil 
Cc: Alex Elder 
Cc: ceph-devel@vger.kernel.org
Cc: Joshua Morris 
Cc: Philip Kelleher 
Cc: Rusty Russell 
Cc: "Michael S. Tsirkin" 
Cc: Konrad Rzeszutek Wilk 
Cc: Jeremy Fitzhardinge 
Cc: Neil Brown 
Cc: Alasdair Kergon 
Cc: Mike Snitzer 
Cc: dm-devel@redhat.com
Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Cc: linux390@de.ibm.com
Cc: Boaz Harrosh 
Cc: Benny Halevy 
Cc: "James E.J. Bottomley" 
Cc: Greg Kroah-Hartman 
Cc: "Nicholas A. Bellinger" 
Cc: Alexander Viro 
Cc: Chris Mason 
Cc: "Theodore Ts'o" 
Cc: Andreas Dilger 
Cc: Jaegeuk Kim 
Cc: Steven Whitehouse 
Cc: Dave Kleikamp 
Cc: Joern Engel 
Cc: Prasad Joshi 
Cc: Trond Myklebust 
Cc: KONISHI Ryusuke 
Cc: Mark Fasheh 
Cc: Joel Becker 
Cc: Ben Myers 
Cc: xfs@oss.sgi.com
Cc: Steven Rostedt 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Len Brown 
Cc: Pavel Machek 
Cc: "Rafael J. Wysocki" 
Cc: Herton Ronaldo Krzesinski 
Cc: Ben Hutchings 
Cc: Andrew Morton 
Cc: Guo Chao 
Cc: Tejun Heo 
Cc: Asai Thambi S P 
Cc: Selvan Mani 
Cc: Sam Bradshaw 
Cc: Wei Yongjun 
Cc: "Roger Pau Monné" 
Cc: Jan Beulich 
Cc: Stefano Stabellini 
Cc: Ian Campbell 
Cc: Sebastian Ott 
Cc: Christian Borntraeger 
Cc: Minchan Kim 
Cc: Jiang Liu 
Cc: Nitin Gupta 
Cc: Jerome Marchand 
Cc: Joe Perches 
Cc: Peng Tao 
Cc: Andy Adamson 
Cc: fanchaoting 
Cc: Jie Liu 
Cc: Sunil Mushran 
Cc: "Martin K. Petersen" 
Cc: Namjae Jeon 
Cc: Pankaj Kumar 
Cc: Dan Magenheimer 
Cc: Mel Gorman 6

s390/dasd: validate request size before building CCW/TCW request

2013-11-20T08:04:54+00:00

An I/O request that does not read or write full blocks cannot be
translated into a correct CCW or TCW program and should be rejected
right away. In particular the code that creates TCW requests will not
notice this problem and create broken TCWs that will be rejected by
the hardware.

Signed-off-by: Stefan Weinhuber 
Reference-ID: RQM1956

s390/scm_block: do not hide eadm subchannel dependency

2013-11-15T13:08:42+00:00

Stop hiding scm_block's dependency to the eadm subchannel driver
(by using functions provided by the eadm subchannel instead of
wrappers provided by the scm bus).

This will help userspace recognizing module dependencies (e.g. for
building a ramdisk). As a side effect we can get rid of some code
reimplementing refcounting between those modules.

Reported-by: Hendrik Brueckner 
Reviewed-by: Peter Oberparleiter 
Signed-off-by: Sebastian Ott 
Signed-off-by: Martin Schwidefsky

Merge branch 'for-3.13/drivers' of git://git.kernel.dk/linux-block

2013-11-14T03:13:05+00:00

Pull block driver updates from Jens Axboe:
 "This is the block driver pull request for 3.13.  As with the core pull
  request just sent out, this was rebased on top of the core branch
  again after the immutable series was pulled.  This also means that
  bcache gets to sit the initial pull over.  I will send a second driver
  pull request in the merge window to get those fixes in, once they have
  been rebased and tested on top of the non-immutable stack.

  This pull request contains:

   - Add support for the sTec Kronos pci-e flash card from sTec.  Also
     has various cleanups for this driver, from myself, Bart, Mike
     Snizter, and Wei Yongjun.

   - Add surprise removal support for the micron mtip32xx driver from
     Micron.

   - Floppy documentation fix from Ben Harris.

   - debugfs bug fix for pktcdvd from Dan Carpenter.

   - Fix for the mtip32xx driver stack usage in the debugfs path,
     dynamically allocating those buffers instead.  From David Milburn.

   - Disable cpqarray in Kconfig.  The plan is to remove it on request
     of HP, but lets disable it for a few revisions just to see if
     anyone yells.

   - drbd fixes from Lars Ellenberg and Philipp Reisner.

   - Elevator switch fix for the s390 block driver from Heiko Carstens.

   - loop crash fix on IO to unassigned device from Mikulas Patocka.

   - A series of bug fixes for the IBM rsxx pci-e flash driver from
     Philip J Kelleher.

   - cciss probe fix from Stephen Cameron.

   - Xen block front/back fixes from Roger Pau Monne and Vegard Nossum"

* 'for-3.13/drivers' of git://git.kernel.dk/linux-block: (41 commits)
  floppy: Correct documentation of driver options when used as a module.
  pktcdvd: debugfs functions return NULL on error
  xen-blkfront: restore the non-persistent data path
  skd: fix formatting in skd_s1120.h
  skd: reorder construct/destruct code
  skd: cleanup skd_do_inq_page_da()
  skd: remove SKD_OMIT_FROM_SRC_DIST ifdefs
  skd: remove redundant skdev->pdev assignment from skd_pci_probe()
  skd: use 
  skd: remove SCSI subsystem specific includes
  skd: register block device only if some devices are present
  skd: fix error messages in skd_init()
  skd: fix error paths in skd_init()
  skd: fix unregister_blkdev() placement
  skd: more removal of bio-based code
  skd: cleanup the skd_*() function block wrapping
  skd: rip out bio path
  skd: fix error return code in skd_pci_probe()
  s390/dasd: hold request queue sysfs lock when calling elevator_init()
  cciss: return 0 from driver probe function on success, not 1
  ...