Commit Graph

6144 Commits

Author SHA1 Message Date
Linus Torvalds 5f21585384 for-linus-20181102
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAlvchGgQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpj/1D/4kEQx4ncnFoZk8QshHV1L++rH3BbcLjQDd
 Wbh9ZSIQdI/gHTzS6bE7x3YfcbpMWPMO3+jFawdfRiFTEjlF8vQ+mnJ+Btb3z4D6
 mGEeFGVhHExlp2a0x/Ma8YWVNlMB7BE8Tq73bZEVMY+9lbpmDW/vp7Sfa87LBDKQ
 ZmY+My+VdHN7qLtQ7t3W/HtpbU+kcXMMd3ICjK4i+ofXy6mynk4+oQ2jwyXc5L86
 UCJCsTsSRr3CgbnkW/uprHo0XHk8i7O/4C3oR+x4pAIxCCa9g+vmw0EO9fvi/2iQ
 qe8jKdm7Y09xu/TiPBa7iz45tdh0cNMJKo3OezmSF9Np+r69KL5C/U4GRPKN3Iwm
 keoqn14ScABkYMSe4ys1AdEgKD6bNUaW3r/lJxTH2oUR23mjnCLp7c4WD/G+MlbB
 CzoakQyCHTZmDFLr2Kc8bkjmpil2T2UFfmLIDAu30LWIYeSGpiIO/V+g1foJMF2f
 06ERltNvgX1BJjoh4NSWySLEf1ZtkUU60NeATRol6gwhnIyLrHsgfm6OEhqlW/7x
 Xc1BWyzX7K6c3Dskk/u5aSRyXOyRC9KkMt3/2XexeDNHkte9yMH0IgSvopPBuER8
 +iPvPjNp7ychTKZB3zpSnlqGgePTjbufIEBtO3OyUmDZKjUqxahtxkQfmPhoclu+
 XdR4ArcqNg==
 =0zM4
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20181102' of git://git.kernel.dk/linux-block

Pull block layer fixes from Jens Axboe:
 "The biggest part of this pull request is the revert of the blkcg
  cleanup series. It had one fix earlier for a stacked device issue, but
  another one was reported. Rather than play whack-a-mole with this,
  revert the entire series and try again for the next kernel release.

  Apart from that, only small fixes/changes.

  Summary:

   - Indentation fixup for mtip32xx (Colin Ian King)

   - The blkcg cleanup series revert (Dennis Zhou)

   - Two NVMe fixes. One fixing a regression in the nvme request
     initialization in this merge window, causing nvme-fc to not work.
     The other is a suspend/resume p2p resource issue (James, Keith)

   - Fix sg discard merge, allowing us to merge in cases where we didn't
     before (Jianchao Wang)

   - Call rq_qos_exit() after the queue is frozen, preventing a hang
     (Ming)

   - Fix brd queue setup, fixing an oops if we fail setting up all
     devices (Ming)"

* tag 'for-linus-20181102' of git://git.kernel.dk/linux-block:
  nvme-pci: fix conflicting p2p resource adds
  nvme-fc: fix request private initialization
  blkcg: revert blkcg cleanups series
  block: brd: associate with queue until adding disk
  block: call rq_qos_exit() after queue is frozen
  mtip32xx: clean an indentation issue, remove extraneous tabs
  block: fix the DISCARD request merge
2018-11-02 11:25:48 -07:00
Linus Torvalds 9931a07d51 Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull AFS updates from Al Viro:
 "AFS series, with some iov_iter bits included"

* 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits)
  missing bits of "iov_iter: Separate type from direction and use accessor functions"
  afs: Probe multiple fileservers simultaneously
  afs: Fix callback handling
  afs: Eliminate the address pointer from the address list cursor
  afs: Allow dumping of server cursor on operation failure
  afs: Implement YFS support in the fs client
  afs: Expand data structure fields to support YFS
  afs: Get the target vnode in afs_rmdir() and get a callback on it
  afs: Calc callback expiry in op reply delivery
  afs: Fix FS.FetchStatus delivery from updating wrong vnode
  afs: Implement the YFS cache manager service
  afs: Remove callback details from afs_callback_break struct
  afs: Commit the status on a new file/dir/symlink
  afs: Increase to 64-bit volume ID and 96-bit vnode ID for YFS
  afs: Don't invoke the server to read data beyond EOF
  afs: Add a couple of tracepoints to log I/O errors
  afs: Handle EIO from delivery function
  afs: Fix TTL on VL server and address lists
  afs: Implement VL server rotation
  afs: Improve FS server rotation error handling
  ...
2018-11-01 19:58:52 -07:00
Dennis Zhou b5f2954d30 blkcg: revert blkcg cleanups series
This reverts a series committed earlier due to null pointer exception
bug report in [1]. It seems there are edge case interactions that I did
not consider and will need some time to understand what causes the
adverse interactions.

The original series can be found in [2] with a follow up series in [3].

[1] https://www.spinics.net/lists/cgroups/msg20719.html
[2] https://lore.kernel.org/lkml/20180911184137.35897-1-dennisszhou@gmail.com/
[3] https://lore.kernel.org/lkml/20181020185612.51587-1-dennis@kernel.org/

This reverts the following commits:
d459d853c2, b2c3fa5467, 101246ec02, b3b9f24f5f, e2b0989954,
f0fcb3ec89, c839e7a03f, bdc2491708, 74b7c02a9b, 5bf9a1f3b4,
a7b39b4e96, 07b05bcc32, 49f4c2dc2b, 27e6fa996c

Signed-off-by: Dennis Zhou <dennis@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-01 19:59:53 -06:00
Ming Lei 153fcd5f6d block: brd: associate with queue until adding disk
brd_free() may be called in failure path on one brd instance which
disk isn't added yet, so release handler of gendisk may free the
associated request_queue early and causes the following use-after-free[1].

This patch fixes this issue by associating gendisk with request_queue
just before adding disk.

[1] KASAN: use-after-free Read in del_timer_syncNon-volatile memory driver v1.3
Linux agpgart interface v0.103
[drm] Initialized vgem 1.0.0 20120112 for virtual device on minor 0
usbcore: registered new interface driver udl
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x36d9/0x4c20
kernel/locking/lockdep.c:3218
Read of size 8 at addr ffff8801d1b6b540 by task swapper/0/1

CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.0+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x244/0x39d lib/dump_stack.c:113
  print_address_description.cold.7+0x9/0x1ff mm/kasan/report.c:256
  kasan_report_error mm/kasan/report.c:354 [inline]
  kasan_report.cold.8+0x242/0x309 mm/kasan/report.c:412
  __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
  __lock_acquire+0x36d9/0x4c20 kernel/locking/lockdep.c:3218
  lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844
  del_timer_sync+0xb7/0x270 kernel/time/timer.c:1283
  blk_cleanup_queue+0x413/0x710 block/blk-core.c:809
  brd_free+0x5d/0x71 drivers/block/brd.c:422
  brd_init+0x2eb/0x393 drivers/block/brd.c:518
  do_one_initcall+0x145/0x957 init/main.c:890
  do_initcall_level init/main.c:958 [inline]
  do_initcalls init/main.c:966 [inline]
  do_basic_setup init/main.c:984 [inline]
  kernel_init_freeable+0x5c6/0x6b9 init/main.c:1148
  kernel_init+0x11/0x1ae init/main.c:1068
  ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350

Reported-by: syzbot+3701447012fe951dabb2@syzkaller.appspotmail.com
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-01 19:59:51 -06:00
Linus Torvalds 31990f0f53 The highlights are:
- a series that fixes some old memory allocation issues in libceph
   (myself).  We no longer allocate memory in places where allocation
   failures cannot be handled and BUG when the allocation fails.
 
 - support for copy_file_range() syscall (Luis Henriques).  If size and
   alignment conditions are met, it leverages RADOS copy-from operation.
   Otherwise, a local copy is performed.
 
 - a patch that reduces memory requirement of ceph_sync_read() from the
   size of the entire read to the size of one object (Zheng Yan).
 
 - fallocate() syscall is now restricted to FALLOC_FL_PUNCH_HOLE (Luis
   Henriques)
 -----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAlvZ6AcTHGlkcnlvbW92
 QGdtYWlsLmNvbQAKCRBKf944AhHzi8H+B/9V/QB1BX5Q2DvkS3mcLNI2NphrppaD
 VBuviwoIzaBm1paCrx40J/pCtsK1Fybl5dBAh1W0SDxEGR8JUA8GJw+oemtOS6pZ
 DwjOF9S7uhzf5M3nQ9SvAbIudBISMZQRi22Y8fWs3k+yaECIz1J/pe7RiKo/GBAB
 NnlbrZ1AYSB02chchVCSmWTApeIRp9JXnaM9xLMJWGVLL/vONjt3ltJ/w9haGYz8
 FPFLPFeWobWqFElnOUomxU8Cv84DgPtH8si0UAn16jveractpFJWO4X6LDs/ZYDk
 /MccfsB3EK9BCJdLJMoI0/lXxE33z3/MehmJDs9xGSX/N4N7UTF8Ve1b
 =U91e
 -----END PGP SIGNATURE-----

Merge tag 'ceph-for-4.20-rc1' of git://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "The highlights are:

   - a series that fixes some old memory allocation issues in libceph
     (myself). We no longer allocate memory in places where allocation
     failures cannot be handled and BUG when the allocation fails.

   - support for copy_file_range() syscall (Luis Henriques). If size and
     alignment conditions are met, it leverages RADOS copy-from
     operation. Otherwise, a local copy is performed.

   - a patch that reduces memory requirement of ceph_sync_read() from
     the size of the entire read to the size of one object (Zheng Yan).

   - fallocate() syscall is now restricted to FALLOC_FL_PUNCH_HOLE (Luis
     Henriques)"

* tag 'ceph-for-4.20-rc1' of git://github.com/ceph/ceph-client: (25 commits)
  ceph: new mount option to disable usage of copy-from op
  ceph: support copy_file_range file operation
  libceph: support the RADOS copy-from operation
  ceph: add non-blocking parameter to ceph_try_get_caps()
  libceph: check reply num_data_items in setup_request_data()
  libceph: preallocate message data items
  libceph, rbd, ceph: move ceph_osdc_alloc_messages() calls
  libceph: introduce alloc_watch_request()
  libceph: assign cookies in linger_submit()
  libceph: enable fallback to ceph_msg_new() in ceph_msgpool_get()
  ceph: num_ops is off by one in ceph_aio_retry_work()
  libceph: no need to call osd_req_opcode_valid() in osd_req_encode_op()
  ceph: set timeout conditionally in __cap_delay_requeue
  libceph: don't consume a ref on pagelist in ceph_msg_data_add_pagelist()
  libceph: introduce ceph_pagelist_alloc()
  libceph: osd_req_op_cls_init() doesn't need to take opcode
  libceph: bump CEPH_MSG_MAX_DATA_LEN
  ceph: only allow punch hole mode in fallocate
  ceph: refactor ceph_sync_read()
  ceph: check if LOOKUPNAME request was aborted when filling trace
  ...
2018-10-31 14:42:31 -07:00
Colin Ian King 698b53b311 mtip32xx: clean an indentation issue, remove extraneous tabs
Trivial fix to clean up an indentation issue, remove tabs

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-30 14:31:36 -06:00
Linus Torvalds 685f7e4f16 powerpc updates for 4.20
Notable changes:
 
  - A large series to rewrite our SLB miss handling, replacing a lot of fairly
    complicated asm with much fewer lines of C.
 
  - Following on from that, we now maintain a cache of SLB entries for each
    process and preload them on context switch. Leading to a 27% speedup for our
    context switch benchmark on Power9.
 
  - Improvements to our handling of SLB multi-hit errors. We now print more debug
    information when they occur, and try to continue running by flushing the SLB
    and reloading, rather than treating them as fatal.
 
  - Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).
 
  - Add support for physical memory up to 2PB in the linear mapping on 64-bit
    Book3S. We only support up to 512TB as regular system memory, otherwise the
    percpu allocator runs out of vmalloc space.
 
  - Add stack protector support for 32 and 64-bit, with a per-task canary.
 
  - Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.
 
  - Support recognising "big cores" on Power9, where two SMT4 cores are presented
    to us as a single SMT8 core.
 
  - A large series to cleanup some of our ioremap handling and PTE flags.
 
  - Add a driver for the PAPR SCM (storage class memory) interface, allowing
    guests to operate on SCM devices (acked by Dan).
 
  - Changes to our ftrace code to handle very large kernels, where we need to use
    a trampoline to get to ftrace_caller().
 
 Many other smaller enhancements and cleanups.
 
 Thanks to:
   Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton Blanchard, Aravinda
   Prasad, Bartlomiej Zolnierkiewicz, Benjamin Herrenschmidt, Breno Leitao,
   Cédric Le Goater, Christophe Leroy, Christophe Lombard, Dan Carpenter, Daniel
   Axtens, Finn Thain, Gautham R. Shenoy, Gustavo Romero, Haren Myneni, Hari
   Bathini, Jia Hongtao, Joel Stanley, John Allen, Laurent Dufour, Madhavan
   Srinivasan, Mahesh Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael
   Bringmann, Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
   Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran,
   Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab, Rob Herring, Sam
   Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan Johnson, Stephen Rothwell,
   Stewart Smith, Suraj Jitindar Singh, Tyrel Datwyler, Vaibhav Jain, Vasant
   Hegde, YueHaibing, zhong jiang,
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJb01vTAAoJEFHr6jzI4aWADsEP/jqL3+2qxs098ra80tpXCpXJ
 tgXCosEs4b35sGtyHeUWZZZfWXeisaPAIlP8zTx1n50HACZduDYRAl0Ew9XB7Xdw
 enDHRVccD21FsmHBOx/Ii1rVJlovWlj6EQCWHKeZmNjeRoFuClVZ7CYmf+mBifKR
 sw2Db2fKA/59wMTq2zIMy5pqYgqlAs4jTWS6uN5hKPoBmO/82ARnNG+qgLuloD3Z
 O8zSDM9QQ7PpuyDgTjO9SAo2YjmEfXlEG6cOCCejsU3DMctaEAK5PUZ+blsHYHBH
 BYZYKs/x4pcw0SO41GtTh0M2YqDYBVuBIpRw8lLZap97Xo9ucSkAm5WD3rGxk4CY
 YeZKEPUql6MHN3+DKl8mx2F0V+Et/tio2HNqc9KReR1tfoolZAbe+SFZHfgmc/Rq
 RD9nnG8KRd4K2K1BTqpkTmI1EtE7jPtPJPSV8gMGhgL/N5vPmH3mql/qyOtYx48E
 6/hPzWESgs16VRZ/opLh8VvjlY1HBDODQhehhhl+o23/Vb8qEgRf8Uqhq50rQW1H
 EeOqyyYQ90txSU31Sgy1kQkvOgIFAsBObWT1ZCJ3RbfGbB4/tdEAvZqTZRlXo2OY
 7P0Sqcw/9Le5eJkHIlLtBv0TF7y1OYemCbLgRQzFlcRP+UKtYyg8eFnFjqbPEEmP
 ulwhn/BfFVSgaYKQ503u
 =I0pj
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - A large series to rewrite our SLB miss handling, replacing a lot of
     fairly complicated asm with much fewer lines of C.

   - Following on from that, we now maintain a cache of SLB entries for
     each process and preload them on context switch. Leading to a 27%
     speedup for our context switch benchmark on Power9.

   - Improvements to our handling of SLB multi-hit errors. We now print
     more debug information when they occur, and try to continue running
     by flushing the SLB and reloading, rather than treating them as
     fatal.

   - Enable THP migration on 64-bit Book3S machines (eg. Power7/8/9).

   - Add support for physical memory up to 2PB in the linear mapping on
     64-bit Book3S. We only support up to 512TB as regular system
     memory, otherwise the percpu allocator runs out of vmalloc space.

   - Add stack protector support for 32 and 64-bit, with a per-task
     canary.

   - Add support for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.

   - Support recognising "big cores" on Power9, where two SMT4 cores are
     presented to us as a single SMT8 core.

   - A large series to cleanup some of our ioremap handling and PTE
     flags.

   - Add a driver for the PAPR SCM (storage class memory) interface,
     allowing guests to operate on SCM devices (acked by Dan).

   - Changes to our ftrace code to handle very large kernels, where we
     need to use a trampoline to get to ftrace_caller().

  And many other smaller enhancements and cleanups.

  Thanks to: Alan Modra, Alistair Popple, Aneesh Kumar K.V, Anton
  Blanchard, Aravinda Prasad, Bartlomiej Zolnierkiewicz, Benjamin
  Herrenschmidt, Breno Leitao, Cédric Le Goater, Christophe Leroy,
  Christophe Lombard, Dan Carpenter, Daniel Axtens, Finn Thain, Gautham
  R. Shenoy, Gustavo Romero, Haren Myneni, Hari Bathini, Jia Hongtao,
  Joel Stanley, John Allen, Laurent Dufour, Madhavan Srinivasan, Mahesh
  Salgaonkar, Mark Hairgrove, Masahiro Yamada, Michael Bringmann,
  Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Nathan
  Fontenot, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver
  O'Halloran, Paul Mackerras, Petr Vorel, Rashmica Gupta, Reza Arbab,
  Rob Herring, Sam Bobroff, Samuel Mendoza-Jonas, Scott Wood, Stan
  Johnson, Stephen Rothwell, Stewart Smith, Suraj Jitindar Singh, Tyrel
  Datwyler, Vaibhav Jain, Vasant Hegde, YueHaibing, zhong jiang"

* tag 'powerpc-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (221 commits)
  Revert "selftests/powerpc: Fix out-of-tree build errors"
  powerpc/msi: Fix compile error on mpc83xx
  powerpc: Fix stack protector crashes on CPU hotplug
  powerpc/traps: restore recoverability of machine_check interrupts
  powerpc/64/module: REL32 relocation range check
  powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd
  selftests/powerpc: Add a test of wild bctr
  powerpc/mm: Fix page table dump to work on Radix
  powerpc/mm/radix: Display if mappings are exec or not
  powerpc/mm/radix: Simplify split mapping logic
  powerpc/mm/radix: Remove the retry in the split mapping logic
  powerpc/mm/radix: Fix small page at boundary when splitting
  powerpc/mm/radix: Fix overuse of small pages in splitting logic
  powerpc/mm/radix: Fix off-by-one in split mapping logic
  powerpc/ftrace: Handle large kernel configs
  powerpc/mm: Fix WARN_ON with THP NUMA migration
  selftests/powerpc: Fix out-of-tree build errors
  powerpc/time: no steal_time when CONFIG_PPC_SPLPAR is not selected
  powerpc/time: Only set CONFIG_ARCH_HAS_SCALED_CPUTIME on PPC64
  powerpc/time: isolate scaled cputime accounting in dedicated functions.
  ...
2018-10-26 14:36:21 -07:00
Linus Torvalds 6080ad3a99 for-linus-20181026
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAlvTOPAQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgptS3D/9jUjcOiMWYwHW6UbLGlVJiW9igzl6xSKpL
 QSxVCyxKoiaoMobO5dg/BJSq9grQAeOAzv0cjGS6VUuUtfRzMlar73PqZzeaF3oE
 oXeg1goxd9Qjs5AgJ5m3ZM+PLIn7g1zh5TP9vKKGeV4USh4tTlLgYEm5Su3sJDLb
 +6RSCkzYahSCouV2ugHPscsroJ/xzbT5vpMvSflbpe5iYNwzRcn81Z/c6rz7nw9A
 IlnYaf9EdP33uyP1j5Elc2Q1q5DmmxePJlrCUc8VyQdVSMAFZBWZfnkAsdeG7i5V
 YLtNm8tfmGNBZQ0Izp/VwGf9ZMwy13Z2JLBYK/qUh2EGGaWzk7FxiPR9+Gl2MHCD
 iRL7ujDb8yJGL8IEz6xiLcZEHZtUW1VLKPA/YiVtBrg9i6533KEboSQ77CyPchxc
 JJaowruaw/TmaL0MdLYQ3MHVYolWjljyv36YqJcN4oeaGuWfOSotjKKSnIg6FAh3
 Co8cDdcrGdD3yUYGx/7NR+/ejfWDnlCMJ/MtWmC0SMiJbL0pQgjIhXdyt1ciJB5Z
 ezHHrGahbmwNg27AuVHlVsjD8jmA2Z017NnS4zNHOdwNAuhE1LWtBOGU8I5oytJH
 eH0UYu2TDjhPGZ7TjEGZ0Xo6brz6IgPOaUIxrUj73hnbSunxdxo2jODFiiiMrs7Z
 6fxyHKMPuQ==
 =NFEB
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20181026' of git://git.kernel.dk/linux-block

Pull more block layer updates from Jens Axboe:

 - Set of patches improving support for zoned devices. This was ready
   before the merge window, but I was late in picking it up and hence it
   missed the original pull request (Damien, Christoph)

 - libata no link power management quirk addition for a Samsung drive
   (Diego Viola)

 - Fix for a performance regression in BFQ that went into this merge
   window (Federico Motta)

 - Fix for a missing dma mask setting return value check (Gustavo)

 - Typo in the gdrom queue failure case (me)

 - NULL pointer deref fix for xen-blkfront (Vasilis Liaskovitis)

 - Fixing the get_rq trace point placement in blk-mq (Xiaoguang Wang)

 - Removal of a set-but-not-read variable in cdrom (zhong jiang)

* tag 'for-linus-20181026' of git://git.kernel.dk/linux-block:
  libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9
  block, bfq: fix asymmetric scenarios detection
  gdrom: fix mistake in assignment of error
  blk-mq: place trace_block_getrq() in correct place
  block: Introduce blk_revalidate_disk_zones()
  block: add a report_zones method
  block: Expose queue nr_zones in sysfs
  block: Improve zone reset execution
  block: Introduce BLKGETNRZONES ioctl
  block: Introduce BLKGETZONESZ ioctl
  block: Limit allocation of zone descriptors for report zones
  block: Introduce blkdev_nr_zones() helper
  scsi: sd_zbc: Fix sd_zbc_check_zones() error checks
  scsi: sd_zbc: Reduce boot device scan and revalidate time
  scsi: sd_zbc: Rearrange code
  cdrom: remove set but not used variable 'tocuse'
  skd: fix unchecked return values
  xen/blkfront: avoid NULL blkfront_info dereference on device removal
2018-10-26 12:43:13 -07:00
Linus Torvalds 62606c224d Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Remove VLA usage
   - Add cryptostat user-space interface
   - Add notifier for new crypto algorithms

  Algorithms:
   - Add OFB mode
   - Remove speck

  Drivers:
   - Remove x86/sha*-mb as they are buggy
   - Remove pcbc(aes) from x86/aesni
   - Improve performance of arm/ghash-ce by up to 85%
   - Implement CTS-CBC in arm64/aes-blk, faster by up to 50%
   - Remove PMULL based arm64/crc32 driver
   - Use PMULL in arm64/crct10dif
   - Add aes-ctr support in s5p-sss
   - Add caam/qi2 driver

  Others:
   - Pick better transform if one becomes available in crc-t10dif"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (124 commits)
  crypto: chelsio - Update ntx queue received from cxgb4
  crypto: ccree - avoid implicit enum conversion
  crypto: caam - add SPDX license identifier to all files
  crypto: caam/qi - simplify CGR allocation, freeing
  crypto: mxs-dcp - make symbols 'sha1_null_hash' and 'sha256_null_hash' static
  crypto: arm64/aes-blk - ensure XTS mask is always loaded
  crypto: testmgr - fix sizeof() on COMP_BUF_SIZE
  crypto: chtls - remove set but not used variable 'csk'
  crypto: axis - fix platform_no_drv_owner.cocci warnings
  crypto: x86/aes-ni - fix build error following fpu template removal
  crypto: arm64/aes - fix handling sub-block CTS-CBC inputs
  crypto: caam/qi2 - avoid double export
  crypto: mxs-dcp - Fix AES issues
  crypto: mxs-dcp - Fix SHA null hashes and output length
  crypto: mxs-dcp - Implement sha import/export
  crypto: aegis/generic - fix for big endian systems
  crypto: morus/generic - fix for big endian systems
  crypto: lrw - fix rebase error after out of bounds fix
  crypto: cavium/nitrox - use pci_alloc_irq_vectors() while enabling MSI-X.
  crypto: cavium/nitrox - NITROX command queue changes.
  ...
2018-10-25 16:43:35 -07:00
Damien Le Moal bf50545696 block: Introduce blk_revalidate_disk_zones()
Drivers exposing zoned block devices have to initialize and maintain
correctness (i.e. revalidate) of the device zone bitmaps attached to
the device request queue (seq_zones_bitmap and seq_zones_wlock).

To simplify coding this, introduce a generic helper function
blk_revalidate_disk_zones() suitable for most (and likely all) cases.
This new function always update the seq_zones_bitmap and seq_zones_wlock
bitmaps as well as the queue nr_zones field when called for a disk
using a request based queue. For a disk using a BIO based queue, only
the number of zones is updated since these queues do not have
schedulers and so do not need the zone bitmaps.

With this change, the zone bitmap initialization code in sd_zbc.c can be
replaced with a call to this function in sd_zbc_read_zones(), which is
called from the disk revalidate block operation method.

A call to blk_revalidate_disk_zones() is also added to the null_blk
driver for devices created with the zoned mode enabled.

Finally, to ensure that zoned devices created with dm-linear or
dm-flakey expose the correct number of zones through sysfs, a call to
blk_revalidate_disk_zones() is added to dm_table_set_restrictions().

The zone bitmaps allocated and initialized with
blk_revalidate_disk_zones() are freed automatically from
__blk_release_queue() using the block internal function
blk_queue_free_zone_bitmaps().

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-25 11:17:40 -06:00
Christoph Hellwig e76239a374 block: add a report_zones method
Dispatching a report zones command through the request queue is a major
pain due to the command reply payload rewriting necessary. Given that
blkdev_report_zones() is executing everything synchronously, implement
report zones as a block device file operation instead, allowing major
simplification of the code in many places.

sd, null-blk, dm-linear and dm-flakey being the only block device
drivers supporting exposing zoned block devices, these drivers are
modified to provide the device side implementation of the
report_zones() block device file operation.

For device mappers, a new report_zones() target type operation is
defined so that the upper block layer calls blkdev_report_zones() can
be propagated down to the underlying devices of the dm targets.
Implementation for this new operation is added to the dm-linear and
dm-flakey targets.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
[Damien]
* Changed method block_device argument to gendisk
* Various bug fixes and improvements
* Added support for null_blk, dm-linear and dm-flakey.
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-25 11:17:40 -06:00
Gustavo A. R. Silva d91dc172e3 skd: fix unchecked return values
Check return values of dma_set_mask_and_coherent().

Otherwise, if dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
fails, the following piece of code will be executed even when the call
to dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); returns 0:

dev_err(&pdev->dev, "DMA mask error %d\n", rc);
goto err_out_regions;

Addresses-Coverity-ID: 1474553 ("Unchecked return value")
Fixes: 1381262148 ("skd: switch to the generic DMA API")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-25 11:17:39 -06:00
Vasilis Liaskovitis f92898e7f3 xen/blkfront: avoid NULL blkfront_info dereference on device removal
If a block device is hot-added when we are out of grants,
gnttab_grant_foreign_access fails with -ENOSPC (log message "28
granting access to ring page") in this code path:

  talk_to_blkback ->
	setup_blkring ->
		xenbus_grant_ring ->
			gnttab_grant_foreign_access

and the failing path in talk_to_blkback sets the driver_data to NULL:

 destroy_blkring:
        blkif_free(info, 0);

        mutex_lock(&blkfront_mutex);
        free_info(info);
        mutex_unlock(&blkfront_mutex);

        dev_set_drvdata(&dev->dev, NULL);

This results in a NULL pointer BUG when blkfront_remove and blkif_free
try to access the failing device's NULL struct blkfront_info.

Cc: stable@vger.kernel.org # 4.5 and later
Signed-off-by: Vasilis Liaskovitis <vliaskovitis@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-25 11:17:39 -06:00
Linus Torvalds bd6bf7c104 pci-v4.20-changes
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAlvPV7IUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vyaUg//WnCaRIu2oKOp8c/bplZJDW5eT10d
 oYAN9qeyptU9RYrg4KBNbZL9UKGFTk3AoN5AUjrk8njxc/dY2ra/79esOvZyyYQy
 qLXBvrXKg3yZnlNlnyBneGSnUVwv/kl2hZS+kmYby2YOa8AH/mhU0FIFvsnfRK2I
 XvwABFm2ZYvXCqh3e5HXaHhOsR88NQ9In0AXVC7zHGqv1r/bMVn2YzPZHL/zzMrF
 mS79tdBTH+shSvchH9zvfgIs+UEKvvjEJsG2liwMkcQaV41i5dZjSKTdJ3EaD/Y2
 BreLxXRnRYGUkBqfcon16Yx+P6VCefDRLa+RhwYO3dxFF2N4ZpblbkIdBATwKLjL
 npiGc6R8yFjTmZU0/7olMyMCm7igIBmDvWPcsKEE8R4PezwoQv6YKHBMwEaflIbl
 Rv4IUqjJzmQPaA0KkRoAVgAKHxldaNqno/6G1FR2gwz+fr68p5WSYFlQ3axhvTjc
 bBMJpB/fbp9WmpGJieTt6iMOI6V1pnCVjibM5ZON59WCFfytHGGpbYW05gtZEod4
 d/3yRuU53JRSj3jQAQuF1B6qYhyxvv5YEtAQqIFeHaPZ67nL6agw09hE+TlXjWbE
 rTQRShflQ+ydnzIfKicFgy6/53D5hq7iH2l7HwJVXbXRQ104T5DB/XHUUTr+UWQn
 /Nkhov32/n6GjxQ=
 =58I4
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - Fix ASPM link_state teardown on removal (Lukas Wunner)

 - Fix misleading _OSC ASPM message (Sinan Kaya)

 - Make _OSC optional for PCI (Sinan Kaya)

 - Don't initialize ASPM link state when ACPI_FADT_NO_ASPM is set
   (Patrick Talbert)

 - Remove x86 and arm64 node-local allocation for host bridge structures
   (Punit Agrawal)

 - Pay attention to device-specific _PXM node values (Jonathan Cameron)

 - Support new Immediate Readiness bit (Felipe Balbi)

 - Differentiate between pciehp surprise and safe removal (Lukas Wunner)

 - Remove unnecessary pciehp includes (Lukas Wunner)

 - Drop pciehp hotplug_slot_ops wrappers (Lukas Wunner)

 - Tolerate PCIe Slot Presence Detect being hardwired to zero to
   workaround broken hardware, e.g., the Wilocity switch/wireless device
   (Lukas Wunner)

 - Unify pciehp controller & slot structs (Lukas Wunner)

 - Constify hotplug_slot_ops (Lukas Wunner)

 - Drop hotplug_slot_info (Lukas Wunner)

 - Embed hotplug_slot struct into users instead of allocating it
   separately (Lukas Wunner)

 - Initialize PCIe port service drivers directly instead of relying on
   initcall ordering (Keith Busch)

 - Restore PCI config state after a slot reset (Keith Busch)

 - Save/restore DPC config state along with other PCI config state
   (Keith Busch)

 - Reference count devices during AER handling to avoid race issue with
   concurrent hot removal (Keith Busch)

 - If an Upstream Port reports ERR_FATAL, don't try to read the Port's
   config space because it is probably unreachable (Keith Busch)

 - During error handling, use slot-specific reset instead of secondary
   bus reset to avoid link up/down issues on hotplug ports (Keith Busch)

 - Restore previous AER/DPC handling that does not remove and
   re-enumerate devices on ERR_FATAL (Keith Busch)

 - Notify all drivers that may be affected by error recovery resets
   (Keith Busch)

 - Always generate error recovery uevents, even if a driver doesn't have
   error callbacks (Keith Busch)

 - Make PCIe link active reporting detection generic (Keith Busch)

 - Support D3cold in PCIe hierarchies during system sleep and runtime,
   including hotplug and Thunderbolt ports (Mika Westerberg)

 - Handle hpmemsize/hpiosize kernel parameters uniformly, whether slots
   are empty or occupied (Jon Derrick)

 - Remove duplicated include from pci/pcie/err.c and unused variable
   from cpqphp (YueHaibing)

 - Remove driver pci_cleanup_aer_uncorrect_error_status() calls (Oza
   Pawandeep)

 - Uninline PCI bus accessors for better ftracing (Keith Busch)

 - Remove unused AER Root Port .error_resume method (Keith Busch)

 - Use kfifo in AER instead of a local version (Keith Busch)

 - Use threaded IRQ in AER bottom half (Keith Busch)

 - Use managed resources in AER core (Keith Busch)

 - Reuse pcie_port_find_device() for AER injection (Keith Busch)

 - Abstract AER interrupt handling to disconnect error injection (Keith
   Busch)

 - Refactor AER injection callbacks to simplify future improvments
   (Keith Busch)

 - Remove unused Netronome NFP32xx Device IDs (Jakub Kicinski)

 - Use bitmap_zalloc() for dma_alias_mask (Andy Shevchenko)

 - Add switch fall-through annotations (Gustavo A. R. Silva)

 - Remove unused Switchtec quirk variable (Joshua Abraham)

 - Fix pci.c kernel-doc warning (Randy Dunlap)

 - Remove trivial PCI wrappers for DMA APIs (Christoph Hellwig)

 - Add Intel GPU device IDs to spurious interrupt quirk (Bin Meng)

 - Run Switchtec DMA aliasing quirk only on NTB endpoints to avoid
   useless dmesg errors (Logan Gunthorpe)

 - Update Switchtec NTB documentation (Wesley Yung)

 - Remove redundant "default n" from Kconfig (Bartlomiej Zolnierkiewicz)

 - Avoid panic when drivers enable MSI/MSI-X twice (Tonghao Zhang)

 - Add PCI support for peer-to-peer DMA (Logan Gunthorpe)

 - Add sysfs group for PCI peer-to-peer memory statistics (Logan
   Gunthorpe)

 - Add PCI peer-to-peer DMA scatterlist mapping interface (Logan
   Gunthorpe)

 - Add PCI configfs/sysfs helpers for use by peer-to-peer users (Logan
   Gunthorpe)

 - Add PCI peer-to-peer DMA driver writer's documentation (Logan
   Gunthorpe)

 - Add block layer flag to indicate driver support for PCI peer-to-peer
   DMA (Logan Gunthorpe)

 - Map Infiniband scatterlists for peer-to-peer DMA if they contain P2P
   memory (Logan Gunthorpe)

 - Register nvme-pci CMB buffer as PCI peer-to-peer memory (Logan
   Gunthorpe)

 - Add nvme-pci support for PCI peer-to-peer memory in requests (Logan
   Gunthorpe)

 - Use PCI peer-to-peer memory in nvme (Stephen Bates, Steve Wise,
   Christoph Hellwig, Logan Gunthorpe)

 - Cache VF config space size to optimize enumeration of many VFs
   (KarimAllah Ahmed)

 - Remove unnecessary <linux/pci-ats.h> include (Bjorn Helgaas)

 - Fix VMD AERSID quirk Device ID matching (Jon Derrick)

 - Fix Cadence PHY handling during probe (Alan Douglas)

 - Signal Cadence Endpoint interrupts via AXI region 0 instead of last
   region (Alan Douglas)

 - Write Cadence Endpoint MSI interrupts with 32 bits of data (Alan
   Douglas)

 - Remove redundant controller tests for "device_type == pci" (Rob
   Herring)

 - Document R-Car E3 (R8A77990) bindings (Tho Vu)

 - Add device tree support for R-Car r8a7744 (Biju Das)

 - Drop unused mvebu PCIe capability code (Thomas Petazzoni)

 - Add shared PCI bridge emulation code (Thomas Petazzoni)

 - Convert mvebu to use shared PCI bridge emulation (Thomas Petazzoni)

 - Add aardvark Root Port emulation (Thomas Petazzoni)

 - Support 100MHz/200MHz refclocks for i.MX6 (Lucas Stach)

 - Add initial power management for i.MX7 (Leonard Crestez)

 - Add PME_Turn_Off support for i.MX7 (Leonard Crestez)

 - Fix qcom runtime power management error handling (Bjorn Andersson)

 - Update TI dra7xx unaligned access errata workaround for host mode as
   well as endpoint mode (Vignesh R)

 - Fix kirin section mismatch warning (Nathan Chancellor)

 - Remove iproc PAXC slot check to allow VF support (Jitendra Bhivare)

 - Quirk Keystone K2G to limit MRRS to 256 (Kishon Vijay Abraham I)

 - Update Keystone to use MRRS quirk for host bridge instead of open
   coding (Kishon Vijay Abraham I)

 - Refactor Keystone link establishment (Kishon Vijay Abraham I)

 - Simplify and speed up Keystone link training (Kishon Vijay Abraham I)

 - Remove unused Keystone host_init argument (Kishon Vijay Abraham I)

 - Merge Keystone driver files into one (Kishon Vijay Abraham I)

 - Remove redundant Keystone platform_set_drvdata() (Kishon Vijay
   Abraham I)

 - Rename Keystone functions for uniformity (Kishon Vijay Abraham I)

 - Add Keystone device control module DT binding (Kishon Vijay Abraham
   I)

 - Use SYSCON API to get Keystone control module device IDs (Kishon
   Vijay Abraham I)

 - Clean up Keystone PHY handling (Kishon Vijay Abraham I)

 - Use runtime PM APIs to enable Keystone clock (Kishon Vijay Abraham I)

 - Clean up Keystone config space access checks (Kishon Vijay Abraham I)

 - Get Keystone outbound window count from DT (Kishon Vijay Abraham I)

 - Clean up Keystone outbound window configuration (Kishon Vijay Abraham
   I)

 - Clean up Keystone DBI setup (Kishon Vijay Abraham I)

 - Clean up Keystone ks_pcie_link_up() (Kishon Vijay Abraham I)

 - Fix Keystone IRQ status checking (Kishon Vijay Abraham I)

 - Add debug messages for all Keystone errors (Kishon Vijay Abraham I)

 - Clean up Keystone includes and macros (Kishon Vijay Abraham I)

 - Fix Mediatek unchecked return value from devm_pci_remap_iospace()
   (Gustavo A. R. Silva)

 - Fix Mediatek endpoint/port matching logic (Honghui Zhang)

 - Change Mediatek Root Port Class Code to PCI_CLASS_BRIDGE_PCI (Honghui
   Zhang)

 - Remove redundant Mediatek PM domain check (Honghui Zhang)

 - Convert Mediatek to pci_host_probe() (Honghui Zhang)

 - Fix Mediatek MSI enablement (Honghui Zhang)

 - Add Mediatek system PM support for MT2712 and MT7622 (Honghui Zhang)

 - Add Mediatek loadable module support (Honghui Zhang)

 - Detach VMD resources after stopping root bus to prevent orphan
   resources (Jon Derrick)

 - Convert pcitest build process to that used by other tools (iio, perf,
   etc) (Gustavo Pimentel)

* tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
  PCI/AER: Refactor error injection fallbacks
  PCI/AER: Abstract AER interrupt handling
  PCI/AER: Reuse existing pcie_port_find_device() interface
  PCI/AER: Use managed resource allocations
  PCI: pcie: Remove redundant 'default n' from Kconfig
  PCI: aardvark: Implement emulated root PCI bridge config space
  PCI: mvebu: Convert to PCI emulated bridge config space
  PCI: mvebu: Drop unused PCI express capability code
  PCI: Introduce PCI bridge emulated config space common logic
  PCI: vmd: Detach resources after stopping root bus
  nvmet: Optionally use PCI P2P memory
  nvmet: Introduce helper functions to allocate and free request SGLs
  nvme-pci: Add support for P2P memory in requests
  nvme-pci: Use PCI p2pmem subsystem to manage the CMB
  IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()
  block: Add PCI P2P flag for request queue
  PCI/P2PDMA: Add P2P DMA driver writer's documentation
  docs-rst: Add a new directory for PCI documentation
  PCI/P2PDMA: Introduce configfs/sysfs enable attribute helpers
  PCI/P2PDMA: Add PCI p2pmem DMA mappings to adjust the bus offset
  ...
2018-10-25 06:50:48 -07:00
David Howells aa563d7bca iov_iter: Separate type from direction and use accessor functions
In the iov_iter struct, separate the iterator type from the iterator
direction and use accessor functions to access them in most places.

Convert a bunch of places to use switch-statements to access them rather
then chains of bitwise-AND statements.  This makes it easier to add further
iterator types.  Also, this can be more efficient as to implement a switch
of small contiguous integers, the compiler can use ~50% fewer compare
instructions than it has to use bitwise-and instructions.

Further, cease passing the iterator type into the iterator setup function.
The iterator function can set that itself.  Only the direction is required.

Signed-off-by: David Howells <dhowells@redhat.com>
2018-10-24 00:41:07 +01:00
Linus Torvalds 6ab9e09238 for-4.20/block-20181021
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAlvNQKgQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgps+8D/9Iy6YIeoPwN10gYsqIh0P2fS3wKzL3kiww
 3vFsWO78PzgLxUlNmB7teLtNFc/R5mi8becZmAdvs9za5YFZk56o3Ifv1x+e+z00
 VY1/gxhiJD6suLeJ6lECnERGDaiWOZVRMo2TE17vxYGW6GGaa0Ts6PUUXmpla1u5
 WKctgt0Qv9WVNyiIdLdeHqzKJwsSSwNTt8fK7eFhy3x8e0CwJr+GtXckbbW3LFkY
 lug0npsTli3EmEPMovZhd25SjZmTk5GTM+ADZQ7Tnv5KXoDWB9jn6TcCSAi3G+5d
 5WUVwfnDyYJiH8qvlg5tRJ690muIy3xMOmpr7QBQ0YnR/LQ3EW+1CVfqD+qimgLH
 TXzlREXQpBP3YlxSDS5nddz4o5z84GZmC9B/43ujPaZKIQ6eBXYdkmQH7tPtSugm
 C6VGomR5tHotjxIiAsexh/5hAus+wW8bObKGTPTyINT0ub3XNclwCKLh26CgI9ie
 WvbS9g3j/KPvu/7s6weZpgD+cks0YdWe/XdXXxiHwsGI9h3J2aJna5RQt1rKWDm5
 wGCgbc/B8eSwiWx+GXlqdB9/Dy/bGXOnSTDnKpEVl1f5zNjeLwUKXbjvkMefWs4m
 jEIcquuDETORY+ZYEfa5YbmS4Lhskr0kzMVTVkZ++81tAWpSCU9Xh3IHrR8TNpt+
 J0oh0FHBDg==
 =LRTT
 -----END PGP SIGNATURE-----

Merge tag 'for-4.20/block-20181021' of git://git.kernel.dk/linux-block

Pull block layer updates from Jens Axboe:
 "This is the main pull request for block changes for 4.20. This
  contains:

   - Series enabling runtime PM for blk-mq (Bart).

   - Two pull requests from Christoph for NVMe, with items such as;
      - Better AEN tracking
      - Multipath improvements
      - RDMA fixes
      - Rework of FC for target removal
      - Fixes for issues identified by static checkers
      - Fabric cleanups, as prep for TCP transport
      - Various cleanups and bug fixes

   - Block merging cleanups (Christoph)

   - Conversion of drivers to generic DMA mapping API (Christoph)

   - Series fixing ref count issues with blkcg (Dennis)

   - Series improving BFQ heuristics (Paolo, et al)

   - Series improving heuristics for the Kyber IO scheduler (Omar)

   - Removal of dangerous bio_rewind_iter() API (Ming)

   - Apply single queue IPI redirection logic to blk-mq (Ming)

   - Set of fixes and improvements for bcache (Coly et al)

   - Series closing a hotplug race with sysfs group attributes (Hannes)

   - Set of patches for lightnvm:
      - pblk trace support (Hans)
      - SPDX license header update (Javier)
      - Tons of refactoring patches to cleanly abstract the 1.2 and 2.0
        specs behind a common core interface. (Javier, Matias)
      - Enable pblk to use a common interface to retrieve chunk metadata
        (Matias)
      - Bug fixes (Various)

   - Set of fixes and updates to the blk IO latency target (Josef)

   - blk-mq queue number updates fixes (Jianchao)

   - Convert a bunch of drivers from the old legacy IO interface to
     blk-mq. This will conclude with the removal of the legacy IO
     interface itself in 4.21, with the rest of the drivers (me, Omar)

   - Removal of the DAC960 driver. The SCSI tree will introduce two
     replacement drivers for this (Hannes)"

* tag 'for-4.20/block-20181021' of git://git.kernel.dk/linux-block: (204 commits)
  block: setup bounce bio_sets properly
  blkcg: reassociate bios when make_request() is called recursively
  blkcg: fix edge case for blk_get_rl() under memory pressure
  nvme-fabrics: move controller options matching to fabrics
  nvme-rdma: always have a valid trsvcid
  mtip32xx: fully switch to the generic DMA API
  rsxx: switch to the generic DMA API
  umem: switch to the generic DMA API
  sx8: switch to the generic DMA API
  sx8: remove dead IF_64BIT_DMA_IS_POSSIBLE code
  skd: switch to the generic DMA API
  ubd: remove use of blk_rq_map_sg
  nvme-pci: remove duplicate check
  drivers/block: Remove DAC960 driver
  nvme-pci: fix hot removal during error handling
  nvmet-fcloop: suppress a compiler warning
  nvme-core: make implicit seed truncation explicit
  nvmet-fc: fix kernel-doc headers
  nvme-fc: rework the request initialization code
  nvme-fc: introduce struct nvme_fcp_op_w_sgl
  ...
2018-10-22 17:46:08 +01:00
Ilya Dryomov 26f887e0a3 libceph, rbd, ceph: move ceph_osdc_alloc_messages() calls
The current requirement is that ceph_osdc_alloc_messages() should be
called after oid and oloc are known.  In preparation for preallocating
message data items, move ceph_osdc_alloc_messages() further down, so
that it is called when OSD op codes are known.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-10-22 10:28:22 +02:00
Ilya Dryomov 24639ce560 libceph: osd_req_op_cls_init() doesn't need to take opcode
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-10-22 10:28:20 +02:00
Chengguang Xu 7d8dc53414 rbd: add __init/__exit annotations
Add __init/__exit annotation to init/cleanup helpers
which are only called once in the module.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2018-10-22 10:28:19 +02:00
Christoph Hellwig ee75fa2ae0 mtip32xx: fully switch to the generic DMA API
The mtip32xx used an odd mix of the old PCI and the generic DMA API,
so switch it over to the generic API entirely.

Note that this also removes a weird fallback to just a 32-bit coherent
dma mask if the 64-bit dma mask doesn't work, as that can't even happen.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-18 15:14:50 -06:00
Christoph Hellwig 77a12e51fc rsxx: switch to the generic DMA API
The PCI DMA API is deprecated, switch to the generic DMA API instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-18 15:14:48 -06:00
Christoph Hellwig b46d40daba umem: switch to the generic DMA API
The PCI DMA API is deprecated, switch to the generic DMA API instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-18 15:14:47 -06:00
Christoph Hellwig 931da2f7a5 sx8: switch to the generic DMA API
The PCI DMA API is deprecated, switch to the generic DMA API instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-18 15:14:45 -06:00
Christoph Hellwig 64ab1fa5da sx8: remove dead IF_64BIT_DMA_IS_POSSIBLE code
This code has effectively been commented out since the first commit,
so remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-18 15:14:43 -06:00
Christoph Hellwig 1381262148 skd: switch to the generic DMA API
The PCI DMA API is deprecated, switch to the generic DMA API instead.
Also make use of the dma_set_mask_and_coherent helper to easily set
the streaming an coherent DMA masks together.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-18 15:14:42 -06:00
Hannes Reinecke 6956b95693 drivers/block: Remove DAC960 driver
The DAC960 driver has been obsoleted by the myrb/myrs drivers,
so it can be dropped.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-17 09:42:30 -06:00
Jens Axboe 0585b75437 sx8: convert to blk-mq
Convert from the old request_fn style driver to blk-mq.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:50:55 -06:00
Jens Axboe 8535fd6f70 z2ram: convert to blk-mq
Straight forward conversion to blk-mq, nothing special about this
driver.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:50:43 -06:00
Omar Sandoval a9f38e1dec floppy: convert to blk-mq
This driver likes to fetch requests from all over the place, so make
queue_rq put requests on a list so that the logic stays the same. Tested
with QEMU.

Signed-off-by: Omar Sandoval <osandov@fb.com>

Converted to blk_mq_init_sq_queue() and fixed a few spots where the
tag_set leaked on cleanup.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:50:14 -06:00
Omar Sandoval 6ec3938cff ataflop: convert to blk-mq
This driver is already pretty broken, in that it has two wait_events()
(one in stdma_lock()) in request_fn. Get rid of the first one by
freezing/quiescing the queue on format, and the second one by replacing
it with stdma_try_lock(). The rest is straightforward. Compile-tested
only and probably incorrect.

Cc: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>

Converted to blk_mq_init_sq_queue()

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:50:09 -06:00
Omar Sandoval 71327f547e ataflop: fix error handling during setup
Move queue allocation next to disk allocation to fix a couple of issues:

- If add_disk() hasn't been called, we should clear disk->queue before
  calling put_disk().
- If we fail to allocate a request queue, we still need to put all of
  the disks, not just the ones that we allocated queues for.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:50:03 -06:00
Omar Sandoval 3e6b8c3c4b ataflop: fold headers into C file
atafd.h and atafdreg.h are only used from ataflop.c, so merge them in
there.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:57 -06:00
Omar Sandoval 21b07f3554 amiflop: convert to blk-mq
Straightforward conversion, just use the existing amiflop_lock to
serialize access to the controller. Compile-tested only.

Cc: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>

Converted to blk_mq_init_sq_queue()

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:52 -06:00
Omar Sandoval 53d0f8dbde amiflop: clean up on errors during setup
The error handling in fd_probe_drives() doesn't clean up at all. Fix it
up in preparation for converting to blk-mq. While we're here, get rid of
the commented out amiga_floppy_remove().

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:47 -06:00
Omar Sandoval c87228f16f amiflop: fold headers into C file
amifd.h and amifdreg.h are only used from amiflop.c, and they're pretty
small, so move the contents to amiflop.c and get rid of the .h files.
This is preparation for adding a struct blk_mq_tag_set to struct
amiga_floppy_struct.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:42 -06:00
Omar Sandoval 8ccb8cb189 swim3: convert to blk-mq
Pretty simple conversion. grab_drive() could probably be replaced by
some freeze/quiesce incantation, but I left it alone, and just used
freeze/quiesce for eject. Compile-tested only.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Omar Sandoval <osandov@fb.com>

Converted to blk_mq_init_sq_queue().

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:36 -06:00
Omar Sandoval dbaa54b65e swim3: add real error handling in setup
The driver doesn't have support for removing a device that has already
been configured, but with more careful ordering we can avoid the need
for that and make sure that we don't leak generic resources.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:26 -06:00
Omar Sandoval e3896d77b7 swim: convert to blk-mq
The only interesting thing here is that there may be two floppies (i.e.,
request queues) sharing the same controller, so we use the global struct
swim_priv->lock to check whether the controller is busy. Compile-tested
only.

Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>

Converted to blk_mq_init_sq_queue()

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:18 -06:00
Omar Sandoval 1448a2a536 swim: fix cleanup on setup error
If we fail to allocate the request queue for a disk, we still need to
free that disk, not just the previous ones. Additionally, we need to
cleanup the previous request queues.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-16 09:49:08 -06:00
Jens Axboe 804186fa95 xsysace: convert to blk-mq
Straight forward conversion, using an internal list to enable the
driver to pull requests at will.

Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-15 20:08:24 -06:00
Jens Axboe 77218ddf46 paride: convert pf to blk-mq
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-15 20:08:15 -06:00
Jens Axboe 99fe8b02a8 paride: convert pd to blk-mq
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-15 20:08:12 -06:00
Jens Axboe 89c6b16509 paride: convert pcd to blk-mq
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-15 20:08:07 -06:00
Jens Axboe fab1adcf95 ps3disk: convert to blk-mq
Convert from the old request_fn style driver to blk-mq.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-15 20:07:56 -06:00
YueHaibing de038597be null_blk: remove set but not used variable 'q'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/block/null_blk_main.c: In function 'end_cmd':
drivers/block/null_blk_main.c:609:24: warning:
 variable 'q' set but not used [-Wunused-but-set-variable]

It not used any more after commit
e50b1e327a ("null_blk: remove legacy IO path")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-15 20:02:59 -06:00
Jens Axboe e50b1e327a null_blk: remove legacy IO path
We're planning on removing this code completely, kill the old
path.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-14 12:49:31 -06:00
Jens Axboe 6d1f9dfde7 skd: fixup usage of legacy IO API
We need to be using the mq variant of request requeue here.

Fixes: ca33dd9296 ("skd: Convert to blk-mq")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-14 12:48:29 -06:00
Jens Axboe 3582dd2917 aoe: convert aoeblk to blk-mq
Straight forward conversion - instead of rewriting the internal buffer
retrieval logic, just replace the previous elevator peeking with an
internal list of requests.

Reviewed-by: "Ed L. Cashin" <ed.cashin@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-10-14 12:47:52 -06:00
Christophe Leroy ed18e423a3 drivers/block/z2ram: use ioremap_wt() instead of __ioremap(_PAGE_WRITETHRU)
_PAGE_WRITETHRU is a target specific flag. Prefer generic functions.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-13 23:52:45 +11:00
Christoph Hellwig b0da3498c5 PCI: Remove pci_set_dma_max_seg_size()
The few callers can just use dma_set_max_seg_size ()directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-10 15:47:00 -05:00