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<title>lwn.git/drivers/block, branch automarkup</title>
<subtitle>Linux kernel documentation tree maintained by Jonathan Corbet</subtitle>
<id>http://mirrors.hust.edu.cn/git/lwn.git/atom?h=automarkup</id>
<link rel='self' href='http://mirrors.hust.edu.cn/git/lwn.git/atom?h=automarkup'/>
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<updated>2019-03-16T19:36:39+00:00</updated>
<entry>
<title>Merge tag 'for-5.1/block-post-20190315' of git://git.kernel.dk/linux-block</title>
<updated>2019-03-16T19:36:39+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-03-16T19:36:39+00:00</published>
<link rel='alternate' type='text/html' href='http://mirrors.hust.edu.cn/git/lwn.git/commit/?id=11efae3506d882a8782bc89493a32e467defd6b9'/>
<id>urn:sha1:11efae3506d882a8782bc89493a32e467defd6b9</id>
<content type='text'>
Pull more block layer changes from Jens Axboe:
 "This is a collection of both stragglers, and fixes that came in after
  I finalized the initial pull. This contains:

   - An MD pull request from Song, with a few minor fixes

   - Set of NVMe patches via Christoph

   - Pull request from Konrad, with a few fixes for xen/blkback

   - pblk fix IO calculation fix (Javier)

   - Segment calculation fix for pass-through (Ming)

   - Fallthrough annotation for blkcg (Mathieu)"

* tag 'for-5.1/block-post-20190315' of git://git.kernel.dk/linux-block: (25 commits)
  blkcg: annotate implicit fall through
  nvme-tcp: support C2HData with SUCCESS flag
  nvmet: ignore EOPNOTSUPP for discard
  nvme: add proper write zeroes setup for the multipath device
  nvme: add proper discard setup for the multipath device
  nvme: remove nvme_ns_config_oncs
  nvme: disable Write Zeroes for qemu controllers
  nvmet-fc: bring Disconnect into compliance with FC-NVME spec
  nvmet-fc: fix issues with targetport assoc_list list walking
  nvme-fc: reject reconnect if io queue count is reduced to zero
  nvme-fc: fix numa_node when dev is null
  nvme-fc: use nr_phys_segments to determine existence of sgl
  nvme-loop: init nvmet_ctrl fatal_err_work when allocate
  nvme: update comment to make the code easier to read
  nvme: put ns_head ref if namespace fails allocation
  nvme-trace: fix cdw10 buffer overrun
  nvme: don't warn on block content change effects
  nvme: add get-feature to admin cmds tracer
  md: Fix failed allocation of md_register_thread
  It's wrong to add len to sector_nr in raid10 reshape twice
  ...
</content>
</entry>
<entry>
<title>zram: default to lzo-rle instead of lzo</title>
<updated>2019-03-14T21:36:20+00:00</updated>
<author>
<name>Dave Rodgman</name>
<email>dave.rodgman@arm.com</email>
</author>
<published>2019-03-13T18:44:26+00:00</published>
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<id>urn:sha1:ce82f19fd5809f0cf87ea9f753c5cc65ca0673d6</id>
<content type='text'>
lzo-rle gives higher performance and similar compression ratios to lzo.

Link: http://lkml.kernel.org/r/20190205155944.16007-4-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman &lt;dave.rodgman@arm.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>Merge tag 'ceph-for-5.1-rc1' of git://github.com/ceph/ceph-client</title>
<updated>2019-03-12T21:58:35+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-03-12T21:58:35+00:00</published>
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<id>urn:sha1:2b0a80b0d0bb0a3db74588279bf851b28c6c4705</id>
<content type='text'>
Pull ceph updates from Ilya Dryomov:
 "The highlights are:

   - rbd will now ignore discards that aren't aligned and big enough to
     actually free up some space (myself). This is controlled by the new
     alloc_size map option and can be disabled if needed.

   - support for rbd deep-flatten feature (myself). Deep-flatten allows
     "rbd flatten" to fully disconnect the clone image and its snapshots
     from the parent and make the parent snapshot removable.

   - a new round of cap handling improvements (Zheng Yan). The kernel
     client should now be much more prompt about releasing its caps and
     it is possible to put a limit on the number of caps held.

   - support for getting ceph.dir.pin extended attribute (Zheng Yan)"

* tag 'ceph-for-5.1-rc1' of git://github.com/ceph/ceph-client: (26 commits)
  Documentation: modern versions of ceph are not backed by btrfs
  rbd: advertise support for RBD_FEATURE_DEEP_FLATTEN
  rbd: whole-object write and zeroout should copyup when snapshots exist
  rbd: copyup with an empty snapshot context (aka deep-copyup)
  rbd: introduce rbd_obj_issue_copyup_ops()
  rbd: stop copying num_osd_ops in rbd_obj_issue_copyup()
  rbd: factor out __rbd_osd_req_create()
  rbd: clear -&gt;xferred on error from rbd_obj_issue_copyup()
  rbd: remove experimental designation from kernel layering
  ceph: add mount option to limit caps count
  ceph: periodically trim stale dentries
  ceph: delete stale dentry when last reference is dropped
  ceph: remove dentry_lru file from debugfs
  ceph: touch existing cap when handling reply
  ceph: pass inclusive lend parameter to filemap_write_and_wait_range()
  rbd: round off and ignore discards that are too small
  rbd: handle DISCARD and WRITE_ZEROES separately
  rbd: get rid of obj_req-&gt;obj_request_count
  libceph: use struct_size() for kmalloc() in crush_decode()
  ceph: send cap releases more aggressively
  ...
</content>
</entry>
<entry>
<title>Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost</title>
<updated>2019-03-10T19:47:57+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-03-10T19:47:57+00:00</published>
<link rel='alternate' type='text/html' href='http://mirrors.hust.edu.cn/git/lwn.git/commit/?id=45ba8d5d061b13494c2a7a7652d51b9da3d9e77a'/>
<id>urn:sha1:45ba8d5d061b13494c2a7a7652d51b9da3d9e77a</id>
<content type='text'>
Pull virtio updates from Michael Tsirkin:
 "Several fixes, most notably fix for virtio on swiotlb systems"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost: silence an unused-variable warning
  virtio: hint if callbacks surprisingly might sleep
  virtio-ccw: wire up -&gt;bus_name callback
  s390/virtio: handle find on invalid queue gracefully
  virtio-ccw: diag 500 may return a negative cookie
  virtio_balloon: remove the unnecessary 0-initialization
  virtio-balloon: improve update_balloon_size_func
  virtio-blk: Consider virtio_max_dma_size() for maximum segment size
  virtio: Introduce virtio_max_dma_size()
  dma: Introduce dma_max_mapping_size()
  swiotlb: Add is_swiotlb_active() function
  swiotlb: Introduce swiotlb_max_mapping_size()
</content>
</entry>
<entry>
<title>Merge tag 'for-5.1/block-20190302' of git://git.kernel.dk/linux-block</title>
<updated>2019-03-08T22:12:17+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-03-08T22:12:17+00:00</published>
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<id>urn:sha1:80201fe175cbf7f3e372f53eba0a881a702ad926</id>
<content type='text'>
Pull block layer updates from Jens Axboe:
 "Not a huge amount of changes in this round, the biggest one is that we
  finally have Mings multi-page bvec support merged. Apart from that,
  this pull request contains:

   - Small series that avoids quiescing the queue for sysfs changes that
     match what we currently have (Aleksei)

   - Series of bcache fixes (via Coly)

   - Series of lightnvm fixes (via Mathias)

   - NVMe pull request from Christoph. Nothing major, just SPDX/license
     cleanups, RR mp policy (Hannes), and little fixes (Bart,
     Chaitanya).

   - BFQ series (Paolo)

   - Save blk-mq cpu -&gt; hw queue mapping, removing a pointer indirection
     for the fast path (Jianchao)

   - fops-&gt;iopoll() added for async IO polling, this is a feature that
     the upcoming io_uring interface will use (Christoph, me)

   - Partition scan loop fixes (Dongli)

   - mtip32xx conversion from managed resource API (Christoph)

   - cdrom registration race fix (Guenter)

   - MD pull from Song, two minor fixes.

   - Various documentation fixes (Marcos)

   - Multi-page bvec feature. This brings a lot of nice improvements
     with it, like more efficient splitting, larger IOs can be supported
     without growing the bvec table size, and so on. (Ming)

   - Various little fixes to core and drivers"

* tag 'for-5.1/block-20190302' of git://git.kernel.dk/linux-block: (117 commits)
  block: fix updating bio's front segment size
  block: Replace function name in string with __func__
  nbd: propagate genlmsg_reply return code
  floppy: remove set but not used variable 'q'
  null_blk: fix checking for REQ_FUA
  block: fix NULL pointer dereference in register_disk
  fs: fix guard_bio_eod to check for real EOD errors
  blk-mq: use HCTX_TYPE_DEFAULT but not 0 to index blk_mq_tag_set-&gt;map
  block: optimize bvec iteration in bvec_iter_advance
  block: introduce mp_bvec_for_each_page() for iterating over page
  block: optimize blk_bio_segment_split for single-page bvec
  block: optimize __blk_segment_map_sg() for single-page bvec
  block: introduce bvec_nth_page()
  iomap: wire up the iopoll method
  block: add bio_set_polled() helper
  block: wire up block device iopoll method
  fs: add an iopoll method to struct file_operations
  loop: set GENHD_FL_NO_PART_SCAN after blkdev_reread_part()
  loop: do not print warn message if partition scan is successful
  block: bounce: make sure that bvec table is updated
  ...
</content>
</entry>
<entry>
<title>lib/lzo: separate lzo-rle from lzo</title>
<updated>2019-03-08T02:32:03+00:00</updated>
<author>
<name>Dave Rodgman</name>
<email>dave.rodgman@arm.com</email>
</author>
<published>2019-03-08T00:30:44+00:00</published>
<link rel='alternate' type='text/html' href='http://mirrors.hust.edu.cn/git/lwn.git/commit/?id=45ec975efb527625629d123f30597673889f52ca'/>
<id>urn:sha1:45ec975efb527625629d123f30597673889f52ca</id>
<content type='text'>
To prevent any issues with persistent data, separate lzo-rle from lzo so
that it is treated as a separate algorithm, and lzo is still available.

Link: http://lkml.kernel.org/r/20190205155944.16007-3-dave.rodgman@arm.com
Signed-off-by: Dave Rodgman &lt;dave.rodgman@arm.com&gt;
Cc: David S. Miller &lt;davem@davemloft.net&gt;
Cc: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Cc: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
Cc: Markus F.X.J. Oberhumer &lt;markus@oberhumer.com&gt;
Cc: Matt Sealey &lt;matt.sealey@arm.com&gt;
Cc: Minchan Kim &lt;minchan@kernel.org&gt;
Cc: Nitin Gupta &lt;nitingupta910@gmail.com&gt;
Cc: Richard Purdie &lt;rpurdie@openedhand.com&gt;
Cc: Sergey Senozhatsky &lt;sergey.senozhatsky.work@gmail.com&gt;
Cc: Sonny Rao &lt;sonnyrao@google.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>Merge tag 'driver-core-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core</title>
<updated>2019-03-06T22:52:48+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2019-03-06T22:52:48+00:00</published>
<link rel='alternate' type='text/html' href='http://mirrors.hust.edu.cn/git/lwn.git/commit/?id=e431f2d74e1b91e00e71e97cadcadffc4cda8a9b'/>
<id>urn:sha1:e431f2d74e1b91e00e71e97cadcadffc4cda8a9b</id>
<content type='text'>
Pull driver core updates from Greg KH:
 "Here is the big driver core patchset for 5.1-rc1

  More patches than "normal" here this merge window, due to some work in
  the driver core by Alexander Duyck to rework the async probe
  functionality to work better for a number of devices, and independant
  work from Rafael for the device link functionality to make it work
  "correctly".

  Also in here is:

   - lots of BUS_ATTR() removals, the macro is about to go away

   - firmware test fixups

   - ihex fixups and simplification

   - component additions (also includes i915 patches)

   - lots of minor coding style fixups and cleanups.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (65 commits)
  driver core: platform: remove misleading err_alloc label
  platform: set of_node in platform_device_register_full()
  firmware: hardcode the debug message for -ENOENT
  driver core: Add missing description of new struct device_link field
  driver core: Fix PM-runtime for links added during consumer probe
  drivers/component: kerneldoc polish
  async: Add cmdline option to specify drivers to be async probed
  driver core: Fix possible supplier PM-usage counter imbalance
  PM-runtime: Fix __pm_runtime_set_status() race with runtime resume
  driver: platform: Support parsing GpioInt 0 in platform_get_irq()
  selftests: firmware: fix verify_reqs() return value
  Revert "selftests: firmware: remove use of non-standard diff -Z option"
  Revert "selftests: firmware: add CONFIG_FW_LOADER_USER_HELPER_FALLBACK to config"
  device: Fix comment for driver_data in struct device
  kernfs: Allocating memory for kernfs_iattrs with kmem_cache.
  sysfs: remove unused include of kernfs-internal.h
  driver core: Postpone DMA tear-down until after devres release
  driver core: Document limitation related to DL_FLAG_RPM_ACTIVE
  PM-runtime: Take suppliers into account in __pm_runtime_set_status()
  device.h: Add __cold to dev_&lt;level&gt; logging functions
  ...
</content>
</entry>
<entry>
<title>Merge branch 'stable/for-jens-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-5.1/block-post</title>
<updated>2019-03-06T16:41:54+00:00</updated>
<author>
<name>Jens Axboe</name>
<email>axboe@kernel.dk</email>
</author>
<published>2019-03-06T16:41:54+00:00</published>
<link rel='alternate' type='text/html' href='http://mirrors.hust.edu.cn/git/lwn.git/commit/?id=e61750c84701310f5a99e1c2e59d77aad5f1da78'/>
<id>urn:sha1:e61750c84701310f5a99e1c2e59d77aad5f1da78</id>
<content type='text'>
Pull two xen blkback fixes from Konrad.

* 'stable/for-jens-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/blkback: rework connect_ring() to avoid inconsistent xenstore 'ring-page-order' set by malicious blkfront
  xen/blkback: add stack variable 'blkif' in connect_ring()
</content>
</entry>
<entry>
<title>virtio-blk: Consider virtio_max_dma_size() for maximum segment size</title>
<updated>2019-03-06T16:19:26+00:00</updated>
<author>
<name>Joerg Roedel</name>
<email>jroedel@suse.de</email>
</author>
<published>2019-02-07T11:59:17+00:00</published>
<link rel='alternate' type='text/html' href='http://mirrors.hust.edu.cn/git/lwn.git/commit/?id=fd1068e1860e44aaaa337b516df4518d1ce98da1'/>
<id>urn:sha1:fd1068e1860e44aaaa337b516df4518d1ce98da1</id>
<content type='text'>
Segments can't be larger than the maximum DMA mapping size
supported on the platform. Take that into account when
setting the maximum segment size for a block device.

Cc: stable@vger.kernel.org
Reviewed-by: Konrad Rzeszutek Wilk &lt;konrad.wilk@oracle.com&gt;
Reviewed-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Joerg Roedel &lt;jroedel@suse.de&gt;
Signed-off-by: Michael S. Tsirkin &lt;mst@redhat.com&gt;
</content>
</entry>
<entry>
<title>mm: replace all open encodings for NUMA_NO_NODE</title>
<updated>2019-03-06T05:07:14+00:00</updated>
<author>
<name>Anshuman Khandual</name>
<email>anshuman.khandual@arm.com</email>
</author>
<published>2019-03-05T23:42:58+00:00</published>
<link rel='alternate' type='text/html' href='http://mirrors.hust.edu.cn/git/lwn.git/commit/?id=98fa15f34cb379864757670b8e8743b21456a20e'/>
<id>urn:sha1:98fa15f34cb379864757670b8e8743b21456a20e</id>
<content type='text'>
Patch series "Replace all open encodings for NUMA_NO_NODE", v3.

All these places for replacement were found by running the following
grep patterns on the entire kernel code.  Please let me know if this
might have missed some instances.  This might also have replaced some
false positives.  I will appreciate suggestions, inputs and review.

1. git grep "nid == -1"
2. git grep "node == -1"
3. git grep "nid = -1"
4. git grep "node = -1"

This patch (of 2):

At present there are multiple places where invalid node number is
encoded as -1.  Even though implicitly understood it is always better to
have macros in there.  Replace these open encodings for an invalid node
number with the global macro NUMA_NO_NODE.  This helps remove NUMA
related assumptions like 'invalid node' from various places redirecting
them to a common definition.

Link: http://lkml.kernel.org/r/1545127933-10711-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual &lt;anshuman.khandual@arm.com&gt;
Reviewed-by: David Hildenbrand &lt;david@redhat.com&gt;
Acked-by: Jeff Kirsher &lt;jeffrey.t.kirsher@intel.com&gt;	[ixgbe]
Acked-by: Jens Axboe &lt;axboe@kernel.dk&gt;			[mtip32xx]
Acked-by: Vinod Koul &lt;vkoul@kernel.org&gt;			[dmaengine.c]
Acked-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;		[powerpc]
Acked-by: Doug Ledford &lt;dledford@redhat.com&gt;		[drivers/infiniband]
Cc: Joseph Qi &lt;jiangqi903@gmail.com&gt;
Cc: Hans Verkuil &lt;hverkuil@xs4all.nl&gt;
Cc: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
</feed>
