Commit Graph

10731 Commits

Author SHA1 Message Date
Joe Perches
592749e4d0 scsi: convert use of typedef ctl_table to struct ctl_table
This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-06 16:08:16 -07:00
Linus Torvalds
1aacb90eaa Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial into next
Pull trivial tree changes from Jiri Kosina:
 "Usual pile of patches from trivial tree that make the world go round"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
  staging: go7007: remove reference to CONFIG_KMOD
  aic7xxx: Remove obsolete preprocessor define
  of: dma: doc fixes
  doc: fix incorrect formula to calculate CommitLimit value
  doc: Note need of bc in the kernel build from 3.10 onwards
  mm: Fix printk typo in dmapool.c
  modpost: Fix comment typo "Modules.symvers"
  Kconfig.debug: Grammar s/addition/additional/
  wimax: Spelling s/than/that/, wording s/destinatary/recipient/
  aic7xxx: Spelling s/termnation/termination/
  arm64: mm: Remove superfluous "the" in comment
  of: Spelling s/anonymouns/anonymous/
  dma: imx-sdma: Spelling s/determnine/determine/
  ath10k: Improve grammar in comments
  ath6kl: Spelling s/determnine/determine/
  of: Improve grammar for of_alias_get_id() documentation
  drm/exynos: Spelling s/contro/control/
  radio-bcm2048.c: fix wrong overflow check
  doc: printk-formats: do not mention casts for u64/s64
  doc: spelling error changes
  ...
2014-06-04 08:50:34 -07:00
Linus Torvalds
c84a1e32ee Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
Pull scheduler updates from Ingo Molnar:
 "The main scheduling related changes in this cycle were:

   - various sched/numa updates, for better performance

   - tree wide cleanup of open coded nice levels

   - nohz fix related to rq->nr_running use

   - cpuidle changes and continued consolidation to improve the
     kernel/sched/idle.c high level idle scheduling logic.  As part of
     this effort I pulled cpuidle driver changes from Rafael as well.

   - standardized idle polling amongst architectures

   - continued work on preparing better power/energy aware scheduling

   - sched/rt updates

   - misc fixlets and cleanups"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (49 commits)
  sched/numa: Decay ->wakee_flips instead of zeroing
  sched/numa: Update migrate_improves/degrades_locality()
  sched/numa: Allow task switch if load imbalance improves
  sched/rt: Fix 'struct sched_dl_entity' and dl_task_time() comments, to match the current upstream code
  sched: Consolidate open coded implementations of nice level frobbing into nice_to_rlimit() and rlimit_to_nice()
  sched: Initialize rq->age_stamp on processor start
  sched, nohz: Change rq->nr_running to always use wrappers
  sched: Fix the rq->next_balance logic in rebalance_domains() and idle_balance()
  sched: Use clamp() and clamp_val() to make sys_nice() more readable
  sched: Do not zero sg->cpumask and sg->sgp->power in build_sched_groups()
  sched/numa: Fix initialization of sched_domain_topology for NUMA
  sched: Call select_idle_sibling() when not affine_sd
  sched: Simplify return logic in sched_read_attr()
  sched: Simplify return logic in sched_copy_attr()
  sched: Fix exec_start/task_hot on migrated tasks
  arm64: Remove TIF_POLLING_NRFLAG
  metag: Remove TIF_POLLING_NRFLAG
  sched/idle: Make cpuidle_idle_call() void
  sched/idle: Reflow cpuidle_idle_call()
  sched/idle: Delay clearing the polling bit
  ...
2014-06-03 14:00:15 -07:00
Linus Torvalds
776edb5931 Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
Pull core locking updates from Ingo Molnar:
 "The main changes in this cycle were:

   - reduced/streamlined smp_mb__*() interface that allows more usecases
     and makes the existing ones less buggy, especially in rarer
     architectures

   - add rwsem implementation comments

   - bump up lockdep limits"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  rwsem: Add comments to explain the meaning of the rwsem's count field
  lockdep: Increase static allocations
  arch: Mass conversion of smp_mb__*()
  arch,doc: Convert smp_mb__*()
  arch,xtensa: Convert smp_mb__*()
  arch,x86: Convert smp_mb__*()
  arch,tile: Convert smp_mb__*()
  arch,sparc: Convert smp_mb__*()
  arch,sh: Convert smp_mb__*()
  arch,score: Convert smp_mb__*()
  arch,s390: Convert smp_mb__*()
  arch,powerpc: Convert smp_mb__*()
  arch,parisc: Convert smp_mb__*()
  arch,openrisc: Convert smp_mb__*()
  arch,mn10300: Convert smp_mb__*()
  arch,mips: Convert smp_mb__*()
  arch,metag: Convert smp_mb__*()
  arch,m68k: Convert smp_mb__*()
  arch,m32r: Convert smp_mb__*()
  arch,ia64: Convert smp_mb__*()
  ...
2014-06-03 12:57:53 -07:00
Linus Torvalds
681a289548 Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next
Pull block core updates from Jens Axboe:
 "It's a big(ish) round this time, lots of development effort has gone
  into blk-mq in the last 3 months.  Generally we're heading to where
  3.16 will be a feature complete and performant blk-mq.  scsi-mq is
  progressing nicely and will hopefully be in 3.17.  A nvme port is in
  progress, and the Micron pci-e flash driver, mtip32xx, is converted
  and will be sent in with the driver pull request for 3.16.

  This pull request contains:

   - Lots of prep and support patches for scsi-mq have been integrated.
     All from Christoph.

   - API and code cleanups for blk-mq from Christoph.

   - Lots of good corner case and error handling cleanup fixes for
     blk-mq from Ming Lei.

   - A flew of blk-mq updates from me:

     * Provide strict mappings so that the driver can rely on the CPU
       to queue mapping.  This enables optimizations in the driver.

     * Provided a bitmap tagging instead of percpu_ida, which never
       really worked well for blk-mq.  percpu_ida relies on the fact
       that we have a lot more tags available than we really need, it
       fails miserably for cases where we exhaust (or are close to
       exhausting) the tag space.

     * Provide sane support for shared tag maps, as utilized by scsi-mq

     * Various fixes for IO timeouts.

     * API cleanups, and lots of perf tweaks and optimizations.

   - Remove 'buffer' from struct request.  This is ancient code, from
     when requests were always virtually mapped.  Kill it, to reclaim
     some space in struct request.  From me.

   - Remove 'magic' from blk_plug.  Since we store these on the stack
     and since we've never caught any actual bugs with this, lets just
     get rid of it.  From me.

   - Only call part_in_flight() once for IO completion, as includes two
     atomic reads.  Hopefully we'll get a better implementation soon, as
     the part IO stats are now one of the more expensive parts of doing
     IO on blk-mq.  From me.

   - File migration of block code from {mm,fs}/ to block/.  This
     includes bio.c, bio-integrity.c, bounce.c, and ioprio.c.  From me,
     from a discussion on lkml.

  That should describe the meat of the pull request.  Also has various
  little fixes and cleanups from Dave Jones, Shaohua Li, Duan Jiong,
  Fengguang Wu, Fabian Frederick, Randy Dunlap, Robert Elliott, and Sam
  Bradshaw"

* 'for-3.16/core' of git://git.kernel.dk/linux-block: (100 commits)
  blk-mq: push IPI or local end_io decision to __blk_mq_complete_request()
  blk-mq: remember to start timeout handler for direct queue
  block: ensure that the timer is always added
  blk-mq: blk_mq_unregister_hctx() can be static
  blk-mq: make the sysfs mq/ layout reflect current mappings
  blk-mq: blk_mq_tag_to_rq should handle flush request
  block: remove dead code in scsi_ioctl:blk_verify_command
  blk-mq: request initialization optimizations
  block: add queue flag for disabling SG merging
  block: remove 'magic' from struct blk_plug
  blk-mq: remove alloc_hctx and free_hctx methods
  blk-mq: add file comments and update copyright notices
  blk-mq: remove blk_mq_alloc_request_pinned
  blk-mq: do not use blk_mq_alloc_request_pinned in blk_mq_map_request
  blk-mq: remove blk_mq_wait_for_tags
  blk-mq: initialize request in __blk_mq_alloc_request
  blk-mq: merge blk_mq_alloc_reserved_request into blk_mq_alloc_request
  blk-mq: add helper to insert requests from irq context
  blk-mq: remove stale comment for blk_mq_complete_request()
  blk-mq: allow non-softirq completions
  ...
2014-06-02 09:29:34 -07:00
Michael Schmitz
a19f8165dc m68k/atari - atari_scsi: use correct virt/phys translation for DMA buffer
With the kernel running from FastRAM instead of ST-RAM, none of ST-RAM is
mapped by mem_init, and DMA-addressable buffer must be mapped by ioremap.

Use platform specific virt/phys translation helpers for this case.

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-05-26 22:41:25 +02:00
Paul Bolle
dd37a76c10 aic7xxx: Remove obsolete preprocessor define
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-05-26 10:39:29 +02:00
Linus Torvalds
0e37c27542 SCSI fixes on 20140524
This is a single fix for a bug exposed by a sysfs change in 3.13 which now
 causes libsas to trigger a warn on in device removal.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJTgKNGAAoJEDeqqVYsXL0ML98IALHiBnsPd8LqtLPDgCg7poBY
 ci4gHgthKRMDiwSi847x6eXxXKDWgPfrMjiVL4pulAkNtAFh52c+BxUcAoEwgSpj
 WmFJwFYwNzExhvOM6my42e1D60G3Gu1DvwrdP065ajygjBZl4beMF06ZWrz+6UxF
 WMpCVw4Rmu8PdAm8aH5N13Sl71nIY6W/rlbC/CtrGLelB7Om1gPbr9YpPfISLFdn
 1A99lJEKjDvZNk64BhJtnRCgvzBWzJ4TVEmnWIx/2mJe/z0pM7whYIKAbqX2WgCi
 JrZ/rdCDJe+lq/rVhCVU/enEoqJsbtWjF6+Wp7/0lK0PDvfSXyR92KfCIXCFi4A=
 =HAcQ
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull single scsi fix from James Bottomley:
 "This is a single fix for a bug exposed by a sysfs change in 3.13 which
  now causes libsas to trigger a warn on in device removal"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] scsi_transport_sas: move bsg destructor into sas_rphy_remove
2014-05-25 10:13:50 -07:00
Joe Lawrence
6aa6caff30 [SCSI] scsi_transport_sas: move bsg destructor into sas_rphy_remove
The recent change in sysfs, bcdde7e221
"sysfs: make __sysfs_remove_dir() recursive" revealed an asymmetric
rphy device creation/deletion sequence in scsi_transport_sas:

  modprobe mpt2sas
    sas_rphy_add
      device_add A               rphy->dev
      device_add B               sas_device transport class
      device_add C               sas_end_device transport class
      device_add D               bsg class

  rmmod mpt2sas
    sas_rphy_delete
      sas_rphy_remove
        device_del B
        device_del C
        device_del A
          sysfs_remove_group     recursive sysfs dir removal
      sas_rphy_free
        device_del D             warning

  where device A is the parent of B, C, and D.

When sas_rphy_free tries to unregister the bsg request queue (device D
above), the ensuing sysfs cleanup discovers that its sysfs group has
already been removed and emits a warning, "sysfs group... not found for
kobject 'end_device-X:0'".

Since bsg creation is a side effect of sas_rphy_add, move its
complementary removal call into sas_rphy_remove. This imposes the
following tear-down order for the devices above: D, B, C, A.

Note the sas_device and sas_end_device transport class devices (B and C
above) are created and destroyed both via the list match traversal in
attribute_container_device_trigger, so the order in which they are
handled is fixed. This is fine as long as they are deleted before their
parent device.

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-05-22 15:54:03 -07:00
Ingo Molnar
65c2ce7004 Linux 3.15-rc6
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJTfR2zAAoJEHm+PkMAQRiG3noH/2s+KUge3qO2M+AmxttUo74B
 +npAMdbqYR3MdEiwxYZfsHcMu4Ye/IKLcrh4pydB5hI2mdjtGkH1bnmia0f1ve/c
 Z/a0256+W8gWp7mcUBqSNztqLPAWa7wKOqNdLjj5idr1BSj6u8im+fQ9FBh2woki
 1fyYAuq/60lq4CMOKJvkA95V1Ome/jO+8tS4PguOgsCETQxCVFGurZcBbG3Mx5Y3
 v+ioCqeRc6GvxPFR6YngnTZCrsLxSRT3tnO2Qy5zX7dxjIQkCEbvIckpBQv01Y3R
 wNUaX+2Jae207igxrEv8CjmCFnmZFuUI15aWWCy6fOS/j8bjuk6ThYJO8N4ZBM0=
 =2ShG
 -----END PGP SIGNATURE-----

Merge tag 'v3.15-rc6' into sched/core, to pick up the latest fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-05-22 10:28:56 +02:00
Ingo Molnar
2fe5de9ce7 Merge branch 'sched/urgent' into sched/core, to avoid conflicts
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-05-07 13:15:46 +02:00
Linus Torvalds
2080cee435 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) e1000e computes header length incorrectly wrt vlans, fix from Vlad
    Yasevich.

 2) ns_capable() check in sock_diag netlink code, from Andrew
    Lutomirski.

 3) Fix invalid queue pairs handling in virtio_net, from Amos Kong.

 4) Checksum offloading busted in sxgbe driver due to incorrect
    descriptor layout, fix from Byungho An.

 5) Fix build failure with SMC_DEBUG set to 2 or larger, from Zi Shen
    Lim.

 6) Fix uninitialized A and X registers in BPF interpreter, from Alexei
    Starovoitov.

 7) Fix arch dependencies of candence driver.

 8) Fix netlink capabilities checking tree-wide, from Eric W Biederman.

 9) Don't dump IFLA_VF_PORTS if netlink request didn't ask for it in
    IFLA_EXT_MASK, from David Gibson.

10) IPV6 FIB dump restart doesn't handle table changes that happen
    meanwhile, causing the code to loop forever or emit dups, fix from
    Kumar Sandararajan.

11) Memory leak on VF removal in bnx2x, from Yuval Mintz.

12) Bug fixes for new Altera TSE driver from Vince Bridgers.

13) Fix route lookup key in SCTP, from Xugeng Zhang.

14) Use BH blocking spinlocks in SLIP, as per a similar fix to CAN/SLCAN
    driver.  From Oliver Hartkopp.

15) TCP doesn't bump retransmit counters in some code paths, fix from
    Eric Dumazet.

16) Clamp delayed_ack in tcp_cubic to prevent theoretical divides by
    zero.  Fix from Liu Yu.

17) Fix locking imbalance in error paths of HHF packet scheduler, from
    John Fastabend.

18) Properly reference the transport module when vsock_core_init() runs,
    from Andy King.

19) Fix buffer overflow in cdc_ncm driver, from Bjørn Mork.

20) IP_ECN_decapsulate() doesn't see a correct SKB network header in
    ip_tunnel_rcv(), fix from Ying Cai.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
  net: macb: Fix race between HW and driver
  net: macb: Remove 'unlikely' optimization
  net: macb: Re-enable RX interrupt only when RX is done
  net: macb: Clear interrupt flags
  net: macb: Pass same size to DMA_UNMAP as used for DMA_MAP
  ip_tunnel: Set network header properly for IP_ECN_decapsulate()
  e1000e: Restrict MDIO Slow Mode workaround to relevant parts
  e1000e: Fix issue with link flap on 82579
  e1000e: Expand workaround for 10Mb HD throughput bug
  e1000e: Workaround for dropped packets in Gig/100 speeds on 82579
  net/mlx4_core: Don't issue PCIe speed/width checks for VFs
  net/mlx4_core: Load the Eth driver first
  net/mlx4_core: Fix slave id computation for single port VF
  net/mlx4_core: Adjust port number in qp_attach wrapper when detaching
  net: cdc_ncm: fix buffer overflow
  Altera TSE: ALTERA_TSE should depend on HAS_DMA
  vsock: Make transport the proto owner
  net: sched: lock imbalance in hhf qdisc
  net: mvmdio: Check for a valid interrupt instead of an error
  net phy: Check for aneg completion before setting state to PHY_RUNNING
  ...
2014-05-05 15:59:46 -07:00
Geert Uytterhoeven
3cab65c466 aic7xxx: Spelling s/termnation/termination/
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Cc: James E.J. Bottomley <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-05-05 15:37:50 +02:00
Fam Zheng
0c8482ac92 [SCSI] virtio-scsi: Skip setting affinity on uninitialized vq
virtscsi_init calls virtscsi_remove_vqs on err, even before initializing
the vqs. The latter calls virtscsi_set_affinity, so let's check the
pointer there before setting affinity on it.

This fixes a panic when setting device's num_queues=2 on RHEL 6.5:

qemu-system-x86_64 ... \
-device virtio-scsi-pci,id=scsi0,addr=0x13,...,num_queues=2 \
-drive file=/stor/vm/dummy.raw,id=drive-scsi-disk,... \
-device scsi-hd,drive=drive-scsi-disk,...

[    0.354734] scsi0 : Virtio SCSI HBA
[    0.379504] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
[    0.380141] IP: [<ffffffff814741ef>] __virtscsi_set_affinity+0x4f/0x120
[    0.380141] PGD 0
[    0.380141] Oops: 0000 [#1] SMP
[    0.380141] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0+ #5
[    0.380141] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2007
[    0.380141] task: ffff88003c9f0000 ti: ffff88003c9f8000 task.ti: ffff88003c9f8000
[    0.380141] RIP: 0010:[<ffffffff814741ef>]  [<ffffffff814741ef>] __virtscsi_set_affinity+0x4f/0x120
[    0.380141] RSP: 0000:ffff88003c9f9c08  EFLAGS: 00010256
[    0.380141] RAX: 0000000000000000 RBX: ffff88003c3a9d40 RCX: 0000000000001070
[    0.380141] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
[    0.380141] RBP: ffff88003c9f9c28 R08: 00000000000136c0 R09: ffff88003c801c00
[    0.380141] R10: ffffffff81475229 R11: 0000000000000008 R12: 0000000000000000
[    0.380141] R13: ffffffff81cc7ca8 R14: ffff88003cac3d40 R15: ffff88003cac37a0
[    0.380141] FS:  0000000000000000(0000) GS:ffff88003e400000(0000) knlGS:0000000000000000
[    0.380141] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[    0.380141] CR2: 0000000000000020 CR3: 0000000001c0e000 CR4: 00000000000006f0
[    0.380141] Stack:
[    0.380141]  ffff88003c3a9d40 0000000000000000 ffff88003cac3d80 ffff88003cac3d40
[    0.380141]  ffff88003c9f9c48 ffffffff814742e8 ffff88003c26d000 ffff88003c26d000
[    0.380141]  ffff88003c9f9c68 ffffffff81474321 ffff88003c26d000 ffff88003c3a9d40
[    0.380141] Call Trace:
[    0.380141]  [<ffffffff814742e8>] virtscsi_set_affinity+0x28/0x40
[    0.380141]  [<ffffffff81474321>] virtscsi_remove_vqs+0x21/0x50
[    0.380141]  [<ffffffff81475231>] virtscsi_init+0x91/0x240
[    0.380141]  [<ffffffff81365290>] ? vp_get+0x50/0x70
[    0.380141]  [<ffffffff81475544>] virtscsi_probe+0xf4/0x280
[    0.380141]  [<ffffffff81363ea5>] virtio_dev_probe+0xe5/0x140
[    0.380141]  [<ffffffff8144c669>] driver_probe_device+0x89/0x230
[    0.380141]  [<ffffffff8144c8ab>] __driver_attach+0x9b/0xa0
[    0.380141]  [<ffffffff8144c810>] ? driver_probe_device+0x230/0x230
[    0.380141]  [<ffffffff8144c810>] ? driver_probe_device+0x230/0x230
[    0.380141]  [<ffffffff8144ac1c>] bus_for_each_dev+0x8c/0xb0
[    0.380141]  [<ffffffff8144c499>] driver_attach+0x19/0x20
[    0.380141]  [<ffffffff8144bf28>] bus_add_driver+0x198/0x220
[    0.380141]  [<ffffffff8144ce9f>] driver_register+0x5f/0xf0
[    0.380141]  [<ffffffff81d27c91>] ? spi_transport_init+0x79/0x79
[    0.380141]  [<ffffffff8136403b>] register_virtio_driver+0x1b/0x30
[    0.380141]  [<ffffffff81d27d19>] init+0x88/0xd6
[    0.380141]  [<ffffffff81d27c18>] ? scsi_init_procfs+0x5b/0x5b
[    0.380141]  [<ffffffff81ce88a7>] do_one_initcall+0x7f/0x10a
[    0.380141]  [<ffffffff81ce8aa7>] kernel_init_freeable+0x14a/0x1de
[    0.380141]  [<ffffffff81ce8b3b>] ? kernel_init_freeable+0x1de/0x1de
[    0.380141]  [<ffffffff817dec20>] ? rest_init+0x80/0x80
[    0.380141]  [<ffffffff817dec29>] kernel_init+0x9/0xf0
[    0.380141]  [<ffffffff817e68fc>] ret_from_fork+0x7c/0xb0
[    0.380141]  [<ffffffff817dec20>] ? rest_init+0x80/0x80
[    0.380141] RIP  [<ffffffff814741ef>] __virtscsi_set_affinity+0x4f/0x120
[    0.380141]  RSP <ffff88003c9f9c08>
[    0.380141] CR2: 0000000000000020
[    0.380141] ---[ end trace 8074b70c3d5e1d73 ]---
[    0.475018] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
[    0.475018]
[    0.475068] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)
[    0.475068] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009

[jejb: checkpatch fixes]
Signed-off-by: Fam Zheng <famz@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-28 16:16:08 -07:00
Tyler Stachecki
af61e27c3f [SCSI] mpt2sas: Don't disable device twice at suspend.
On suspend, _scsih_suspend calls mpt2sas_base_free_resources, which
in turn calls pci_disable_device if the device is enabled prior to
suspending. However, _scsih_suspend also calls pci_disable_device
itself.

Thus, in the event that the device is enabled prior to suspending,
pci_disable_device will be called twice. This patch removes the
duplicate call to pci_disable_device in _scsi_suspend as it is both
unnecessary and results in a kernel oops.

Signed-off-by: Tyler Stachecki <tstache1@binghamton.edu>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-28 07:49:25 -07:00
Eric W. Biederman
90f62cf30a net: Use netlink_ns_capable to verify the permisions of netlink messages
It is possible by passing a netlink socket to a more privileged
executable and then to fool that executable into writing to the socket
data that happens to be valid netlink message to do something that
privileged executable did not intend to do.

To keep this from happening replace bare capable and ns_capable calls
with netlink_capable, netlink_net_calls and netlink_ns_capable calls.
Which act the same as the previous calls except they verify that the
opener of the socket had the desired permissions as well.

Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-24 13:44:54 -04:00
James Bottomley
c69e6f812b [SCSI] More USB deadlock fixes
This patch fixes a corner case in the previous USB Deadlock fix patch (12023e7
[SCSI] Fix USB deadlock caused by SCSI error handling).

The scenario is abort command, set flag, abort completes, send TUR, TUR
doesn't return, so we now try to abort the TUR, but scsi_abort_eh_cmnd()
will skip the abort because the flag is set and move straight to reset.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-21 14:28:40 -07:00
Hannes Reinecke
7daf480483 [SCSI] Fix USB deadlock caused by SCSI error handling
USB requires that every command be aborted first before we escalate to reset.
In particular, USB will deadlock if we try to reset first before aborting the
command.

Unfortunately, the flag we use to tell if a command has already been aborted:
SCSI_EH_ABORT_SCHEDULED is not cleared properly leading to cases where we can
requeue a command with the flag set and proceed immediately to reset if it
fails (thus causing USB to deadlock).

Fix by clearing the SCSI_EH_ABORT_SCHEDULED flag if it has been set.  Which
means this will be the second time scsi_abort_command() has been called for
the same command.  IE the first abort went out, did its thing, but now the
same command has timed out again.

So this flag gets cleared, and scsi_abort_command() returns FAILED, and _no_
asynchronous abort is being scheduled.  scsi_times_out() will then proceed to
call scsi_eh_scmd_add().  But as we've cleared the SCSI_EH_ABORT_SCHEDULED
flag the SCSI_EH_CANCEL_CMD flag will continue to be set, and the command will
be aborted with the main SCSI EH routine.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Andreas Reis <andreas.reis@gmail.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-21 14:28:26 -07:00
Alan Stern
644373a421 [SCSI] Fix command result state propagation
We're seeing a case where the contents of scmd->result isn't being reset after
a SCSI command encounters an error, is resubmitted, times out and then gets
handled.  The error handler acts on the stale result of the previous error
instead of the timeout.  Fix this by properly zeroing the scmd->status before
the command is resubmitted.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-21 14:27:26 -07:00
James Bottomley
d555a2abf3 [SCSI] Fix spurious request sense in error handling
We unconditionally execute scsi_eh_get_sense() to make sure all failed
commands that should have sense attached, do.  However, the routine forgets
that some commands, because of the way they fail, will not have any sense code
... we should not bother them with a REQUEST_SENSE command.  Fix this by
testing to see if we actually got a CHECK_CONDITION return and skip asking for
sense if we don't.

Tested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-21 14:27:05 -07:00
Christoph Hellwig
68c03d9193 [SCSI] don't reference freed command in scsi_prep_return
Patch

commit 0479633686
Author: Christoph Hellwig <hch@infradead.org>
Date:   Thu Feb 20 14:20:55 2014 -0800

    [SCSI] do not manipulate device reference counts in scsi_get/put_command

Introduced a use after free:I in the kill case of scsi_prep_return we have to
release our device reference, but we do this trying to reference the just
freed command.  Use the local sdev pointer instead.

Fixes: 0479633686
Reported-by: Joe Lawrence <joe.lawrence@stratus.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-21 07:57:22 -07:00
Christoph Hellwig
5e012aad85 [SCSI] don't reference freed command in scsi_init_sgtable
Patch

commit 0479633686
Author: Christoph Hellwig <hch@infradead.org>
Date:   Thu Feb 20 14:20:55 2014 -0800

    [SCSI] do not manipulate device reference counts in scsi_get/put_command

Introduced a use after free: when scsi_init_io fails we have to release our
device reference, but we do this trying to reference the just freed command.
Add a local scsi_device pointer to fix this.

Fixes: 0479633686
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-21 07:57:21 -07:00
scameron@beardog.cce.hp.com
67c99a72e3 [SCSI] hpsa: fix NULL dereference in hpsa_put_ctlr_into_performant_mode()
Initialize local variable trans_support before it is used rather
than after.  It is supposed to contain the value of a register on the
controller containing bits that describe which transport modes the
controller supports (e.g. "performant", "ioaccel1",  "ioaccel2").  A
NULL pointer dereference will almost certainly occur if trans_support
is not initialized at the right point.  If for example the uninitialized
trans_support value does not have the bit set for ioaccel2 support when it
should be, then ioaccel2_alloc_cmds_and_bft() will not get called as it
should be and the h->ioaccel2_blockFetchTable array will remain NULL
instead of being allocated.  Too late, trans_support finally gets
initialized with the correct value with ioaccel2 mode bit set,
which later causes calc_bucket_map() to be called to fill in
h->ioaccel2_blockFetchTable[].  However h->ioaccel2_blockFetchTable
is NULL because it didn't get allocated because earlier trans_support
wasn't initialized at the right point.

Fixes: e1f7de0cdd
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Reported-by: Baoquan He <bhe@redhat.com>
Tested-by: Baoquan He <bhe@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-04-21 07:56:53 -07:00
Peter Zijlstra
4e857c58ef arch: Mass conversion of smp_mb__*()
Mostly scripted conversion of the smp_mb__* barriers.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-55dhyhocezdw1dg7u19hmh1u@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-04-18 14:20:48 +02:00
Dongsheng Yang
8698a745d8 sched, treewide: Replace hardcoded nice values with MIN_NICE/MAX_NICE
Replace various -20/+19 hardcoded nice values with MIN_NICE/MAX_NICE.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/ff13819fd09b7a5dba5ab5ae797f2e7019bdfa17.1394532288.git.yangds.fnst@cn.fujitsu.com
Cc: devel@driverdev.osuosl.org
Cc: devicetree@vger.kernel.org
Cc: fcoe-devel@open-fcoe.org
Cc: linux390@de.ibm.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: linux-s390@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: nbd-general@lists.sourceforge.net
Cc: ocfs2-devel@oss.oracle.com
Cc: openipmi-developer@lists.sourceforge.net
Cc: qla2xxx-upstream@qlogic.com
Cc: linux-arch@vger.kernel.org
[ Consolidated the patches, twiddled the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-04-18 12:07:24 +02:00
Jens Axboe
dc4a93078b sd/skd: stuff discard page in request->completion_data
Store the pointer to the page there, so we can always safely
reference it from end_io context where ->bio may have been
cleared.

Signed-off-by: Jens Axboe <axboe@fb.com>
2014-04-16 21:37:30 -06:00
Jens Axboe
b4f42e2831 block: remove struct request buffer member
This was used in the olden days, back when onions were proper
yellow. Basically it mapped to the current buffer to be
transferred. With highmem being added more than a decade ago,
most drivers map pages out of a bio, and rq->buffer isn't
pointing at anything valid.

Convert old style drivers to just use bio_data().

For the discard payload use case, just reference the page
in the bio.

Signed-off-by: Jens Axboe <axboe@fb.com>
2014-04-15 14:03:02 -06:00
Jens Axboe
f89e0dd9d1 Linux 3.15-rc1
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJTSv89AAoJEHm+PkMAQRiGd7AIAKL45dFRhX96W53uzGlpXtv7
 Ecs9CMY5mtsB/rqtV/NSQaUELlNb4Ilb4lITh7NaLWAZxDJ12GwVsIbFoaBj7Ypx
 tfBNNxffGGnTTn2C1PpPQmLytLBvqXIVHMaPpDvnHYJl6g9BihshLzyMrsrizqnA
 DPJ0xMdgGp6BLC4qm0ZH1mS2q+TyXLN2ZCjJ1lp6NNYwBnwOe/ABjnUa0Ztu7aii
 837N8h6nEuKHTr6DgrYHEgYVc3DPHPHaly/UJ8v4U30myzRv83YkD5DsBSUjSLj8
 CzxJEnECa1XljLJK7SjRHy5pSP9tcUlmjx3Fk7IpQixmT+A15cov6fQ967jNlDw=
 =Hxnc
 -----END PGP SIGNATURE-----

Merge tag 'v3.15-rc1' into for-3.16/core

We don't like this, but things have diverged with the blk-mq fixes
in 3.15-rc1. So merge it in.
2014-04-15 14:02:24 -06:00
Mikulas Patocka
fd1232b214 sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
This patch fixes I/O errors with the sym53c8xx_2 driver when the disk
returns QUEUE FULL status.

When the controller encounters an error (including QUEUE FULL or BUSY
status), it aborts all not yet submitted requests in the function
sym_dequeue_from_squeue.

This function aborts them with DID_SOFT_ERROR.

If the disk has full tag queue, the request that caused the overflow is
aborted with QUEUE FULL status (and the scsi midlayer properly retries
it until it is accepted by the disk), but the sym53c8xx_2 driver aborts
the following requests with DID_SOFT_ERROR --- for them, the midlayer
does just a few retries and then signals the error up to sd.

The result is that disk returning QUEUE FULL causes request failures.

The error was reproduced on 53c895 with COMPAQ BD03685A24 disk
(rebranded ST336607LC) with command queue 48 or 64 tags.  The disk has
64 tags, but under some access patterns it return QUEUE FULL when there
are less than 64 pending tags.  The SCSI specification allows returning
QUEUE FULL anytime and it is up to the host to retry.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12 18:02:16 -07:00
Linus Torvalds
454fd351f2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull yet more networking updates from David Miller:

 1) Various fixes to the new Redpine Signals wireless driver, from
    Fariya Fatima.

 2) L2TP PPP connect code takes PMTU from the wrong socket, fix from
    Dmitry Petukhov.

 3) UFO and TSO packets differ in whether they include the protocol
    header in gso_size, account for that in skb_gso_transport_seglen().
   From Florian Westphal.

 4) If VLAN untagging fails, we double free the SKB in the bridging
    output path.  From Toshiaki Makita.

 5) Several call sites of sk->sk_data_ready() were referencing an SKB
    just added to the socket receive queue in order to calculate the
    second argument via skb->len.  This is dangerous because the moment
    the skb is added to the receive queue it can be consumed in another
    context and freed up.

    It turns out also that none of the sk->sk_data_ready()
    implementations even care about this second argument.

    So just kill it off and thus fix all these use-after-free bugs as a
    side effect.

 6) Fix inverted test in tcp_v6_send_response(), from Lorenzo Colitti.

 7) pktgen needs to do locking properly for LLTX devices, from Daniel
    Borkmann.

 8) xen-netfront driver initializes TX array entries in RX loop :-) From
    Vincenzo Maffione.

 9) After refactoring, some tunnel drivers allow a tunnel to be
    configured on top itself.  Fix from Nicolas Dichtel.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits)
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  net: ipv6: Fix oif in TCP SYN+ACK route lookup.
  drivers: net: cpsw: enable interrupts after napi enable and clearing previous interrupts
  drivers: net: cpsw: discard all packets received when interface is down
  net: Fix use after free by removing length arg from sk_data_ready callbacks.
  Drivers: net: hyperv: Address UDP checksum issues
  Drivers: net: hyperv: Negotiate suitable ndis version for offload support
  Drivers: net: hyperv: Allocate memory for all possible per-pecket information
  bridge: Fix double free and memory leak around br_allowed_ingress
  bonding: Remove debug_fs files when module init fails
  i40evf: program RSS LUT correctly
  i40evf: remove open-coded skb_cow_head
  ixgb: remove open-coded skb_cow_head
  igbvf: remove open-coded skb_cow_head
  ...
2014-04-12 17:31:22 -07:00
Linus Torvalds
141eaccd01 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "Here are the target pending updates for v3.15-rc1.  Apologies in
  advance for waiting until the second to last day of the merge window
  to send these out.

  The highlights this round include:

   - iser-target support for T10 PI (DIF) offloads (Sagi + Or)
   - Fix Task Aborted Status (TAS) handling in target-core (Alex Leung)
   - Pass in transport supported PI at session initialization (Sagi + MKP + nab)
   - Add WRITE_INSERT + READ_STRIP T10 PI support in target-core (nab + Sagi)
   - Fix iscsi-target ERL=2 ASYNC_EVENT connection pointer bug (nab)
   - Fix tcm_fc use-after-free of ft_tpg (Andy Grover)
   - Use correct ib_sg_dma primitives in ib_isert (Mike Marciniszyn)

  Also, note the virtio-scsi + vhost-scsi changes to expose T10 PI
  metadata into KVM guest have been left-out for now, as there where a
  few comments from MST + Paolo that where not able to be addressed in
  time for v3.15.  Please expect this feature for v3.16-rc1"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (43 commits)
  ib_srpt: Use correct ib_sg_dma primitives
  target/tcm_fc: Rename ft_tport_create to ft_tport_get
  target/tcm_fc: Rename ft_{add,del}_lport to {add,del}_wwn
  target/tcm_fc: Rename structs and list members for clarity
  target/tcm_fc: Limit to 1 TPG per wwn
  target/tcm_fc: Don't export ft_lport_list
  target/tcm_fc: Fix use-after-free of ft_tpg
  target: Add check to prevent Abort Task from aborting itself
  target: Enable READ_STRIP emulation in target_complete_ok_work
  target/sbc: Add sbc_dif_read_strip software emulation
  target: Enable WRITE_INSERT emulation in target_execute_cmd
  target/sbc: Add sbc_dif_generate software emulation
  target/sbc: Only expose PI read_cap16 bits when supported by fabric
  target/spc: Only expose PI mode page bits when supported by fabric
  target/spc: Only expose PI inquiry bits when supported by fabric
  target: Pass in transport supported PI at session initialization
  target/iblock: Fix double bioset_integrity_free bug
  Target/sbc: Initialize COMPARE_AND_WRITE write_sg scatterlist
  target/rd: T10-Dif: RAM disk is allocating more space than required.
  iscsi-target: Fix ERL=2 ASYNC_EVENT connection pointer bug
  ...
2014-04-12 16:51:08 -07:00
Linus Torvalds
b7e70ca9c7 Merge branch 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci
Pull async SCSI resume support from Dan Williams:
 "Allow disks and other devices to resume in parallel.

  This provides a tangible speed up for a non-esoteric use case (laptop
  resume):

    https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach"

* 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci:
  scsi: async sd resume
2014-04-11 17:23:52 -07:00
David S. Miller
676d23690f net: Fix use after free by removing length arg from sk_data_ready callbacks.
Several spots in the kernel perform a sequence like:

	skb_queue_tail(&sk->s_receive_queue, skb);
	sk->sk_data_ready(sk, skb->len);

But at the moment we place the SKB onto the socket receive queue it
can be consumed and freed up.  So this skb->len access is potentially
to freed up memory.

Furthermore, the skb->len can be modified by the consumer so it is
possible that the value isn't accurate.

And finally, no actual implementation of this callback actually uses
the length argument.  And since nobody actually cared about it's
value, lots of call sites pass arbitrary values in such as '0' and
even '1'.

So just remove the length argument from the callback, that way there
is no confusion whatsoever and all of these use-after-free cases get
fixed as a side effect.

Based upon a patch by Eric Dumazet and his suggestion to audit this
issue tree-wide.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-11 16:15:36 -04:00
Dan Williams
3c31b52f96 scsi: async sd resume
async_schedule() sd resume work to allow disks and other devices to
resume in parallel.

This moves the entirety of scsi_device resume to an async context to
ensure that scsi_device_resume() remains ordered with respect to the
completion of the start/stop command.  For the duration of the resume,
new command submissions (that do not originate from the scsi-core) will
be deferred (BLKPREP_DEFER).

It adds a new ASYNC_DOMAIN_EXCLUSIVE(scsi_sd_pm_domain) as a container
of these operations.  Like scsi_sd_probe_domain it is flushed at
sd_remove() time to ensure async ops do not continue past the
end-of-life of the sdev.  The implementation explicitly refrains from
reusing scsi_sd_probe_domain directly for this purpose as it is flushed
at the end of dpm_resume(), potentially defeating some of the benefit.
Given sdevs are quiesced it is permissible for these resume operations
to bleed past the async_synchronize_full() calls made by the driver
core.

We defer the resolution of which pm callback to call until
scsi_dev_type_{suspend|resume} time and guarantee that the callback
parameter is never NULL.  With this in place the type of resume
operation is encoded in the async function identifier.

There is a concern that async resume could trigger PSU overload.  In the
enterprise, storage enclosures enforce staggered spin-up regardless of
what the kernel does making async scanning safe by default.  Outside of
that context a user can disable asynchronous scanning via a kernel
command line or CONFIG_SCSI_SCAN_ASYNC.  Honor that setting when
deciding whether to do resume asynchronously.

Inspired by Todd's analysis and initial proposal [2]:
https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach

Cc: Len Brown <len.brown@intel.com>
Cc: Phillip Susi <psusi@ubuntu.com>
[alan: bug fix and clean up suggestion]
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Suggested-by: Todd Brandt <todd.e.brandt@linux.intel.com>
[djbw: kick all resume work to the async queue]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2014-04-10 15:30:35 -07:00
Linus Torvalds
dd76a786af Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block layer fixes from Jens Axboe:
 "A small collection of fixes that should go in before -rc1.  The pull
  request contains:

   - A two patch fix for a regression with block enabled tagging caused
     by a commit in the initial pull request.  One patch is from Martin
     and ensures that SCSI doesn't truncate 64-bit block flags, the
     other one is from me and prevents us from double using struct
     request queuelist for both completion and busy tags.  This caused
     anything from a boot crash for some, to crashes under load.

   - A blk-mq fix for a potential soft stall when hot unplugging CPUs
     with busy IO.

   - percpu_counter fix is listed in here, that caused a suspend issue
     with virtio-blk due to percpu counters having an inconsistent state
     during CPU removal.  Andrew sent this in separately a few days ago,
     but it's here.  JFYI.

   - A few fixes for block integrity from Martin.

   - A ratelimit fix for loop from Mike Galbraith, to avoid spewing too
     much in error cases"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: fix regression with block enabled tagging
  scsi: Make sure cmd_flags are 64-bit
  block: Ensure we only enable integrity metadata for reads and writes
  block: Fix integrity verification
  block: Fix for_each_bvec()
  drivers/block/loop.c: ratelimit error messages
  blk-mq: fix potential stall during CPU unplug with IO pending
  percpu_counter: fix bad counter state during suspend
2014-04-10 09:26:55 -07:00
Martin K. Petersen
2bfad21ecc scsi: Make sure cmd_flags are 64-bit
cmd_flags in struct request is now 64 bits wide but the scsi_execute
functions truncated arguments passed to int leading to errors. Make sure
the flags parameters are u64.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Jens Axboe <axboe@fb.com>
CC: Jan Kara <jack@suse.cz>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-04-09 20:26:20 -06:00
Jens Axboe
59c3d45e48 block: remove 'q' parameter from kblockd_schedule_*_work()
The queue parameter is never used, just get rid of it.

Signed-off-by: Jens Axboe <axboe@fb.com>
2014-04-09 10:17:00 -06:00
Linus Torvalds
467a9e1633 CPU hotplug notifiers registration fixes for 3.15-rc1
The purpose of this single series of commits from Srivatsa S Bhat (with
 a small piece from Gautham R Shenoy) touching multiple subsystems that use
 CPU hotplug notifiers is to provide a way to register them that will not
 lead to deadlocks with CPU online/offline operations as described in the
 changelog of commit 93ae4f978c (CPU hotplug: Provide lockless versions
 of callback registration functions).
 
 The first three commits in the series introduce the API and document it
 and the rest simply goes through the users of CPU hotplug notifiers and
 converts them to using the new method.
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJTQow2AAoJEILEb/54YlRxW4QQAJlYRDUzwFJzJzYhltQYuVR+
 4D74XMtvXgoJfg3cwdSWvMKKpJZnA9BVN0f7Hcx9wYmgdexYUuHeZJmMNyc3S2+g
 KjKBIsugvgmZhHbbLd6TJ6GBbhGT5JLt9VmSfL9zIkveInU1YHFUUqL/mxdHm4J0
 BSGKjk2rN3waRJgmY+xfliFLtQjDKFwJpMuvrgtoUyfas3f4sIV43UNbqdvA/weJ
 rzedxXOlKH/id4b56lj/4iIzcoL3mwvJJ7r6n0CEMsKv87z09kqR0O+69Tsq/cgs
 j17CsvoJOmZGk3QTeKVMQWBsvk6aPoDu3zK83gLbQMt+qjOpSTbJLz/3HZw4/TrW
 ss4nuZne1DLMGS+6hoxYbTP+6Ni//Kn+l/LrHc5jb7m1X3lMO4W2aV3IROtIE1rv
 lEP1IG01NU4u9YwkVj1dyhrkSp8tLPul4SrUK8W+oNweOC5crjJV7vJbIPJgmYiM
 IZN55wln0yVRtR4TX+rmvN0PixsInE8MeaVCmReApyF9pdzul/StxlBze5BKLSJD
 cqo1kNPpsmdxoDucqUpQ/gSvy+IOl2qnlisB5PpV93sk7De6TFDYrGHxjYIW7jMf
 StXwdCDDQhzd2Q8Kfpp895A1dbIl8rKtwA6bTU2eX+BfMVFzuMdT44cvosx1+UdQ
 sWl//rg76nb13dFjvF+q
 =SW7Q
 -----END PGP SIGNATURE-----

Merge tag 'cpu-hotplug-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull CPU hotplug notifiers registration fixes from Rafael Wysocki:
 "The purpose of this single series of commits from Srivatsa S Bhat
  (with a small piece from Gautham R Shenoy) touching multiple
  subsystems that use CPU hotplug notifiers is to provide a way to
  register them that will not lead to deadlocks with CPU online/offline
  operations as described in the changelog of commit 93ae4f978c ("CPU
  hotplug: Provide lockless versions of callback registration
  functions").

  The first three commits in the series introduce the API and document
  it and the rest simply goes through the users of CPU hotplug notifiers
  and converts them to using the new method"

* tag 'cpu-hotplug-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits)
  net/iucv/iucv.c: Fix CPU hotplug callback registration
  net/core/flow.c: Fix CPU hotplug callback registration
  mm, zswap: Fix CPU hotplug callback registration
  mm, vmstat: Fix CPU hotplug callback registration
  profile: Fix CPU hotplug callback registration
  trace, ring-buffer: Fix CPU hotplug callback registration
  xen, balloon: Fix CPU hotplug callback registration
  hwmon, via-cputemp: Fix CPU hotplug callback registration
  hwmon, coretemp: Fix CPU hotplug callback registration
  thermal, x86-pkg-temp: Fix CPU hotplug callback registration
  octeon, watchdog: Fix CPU hotplug callback registration
  oprofile, nmi-timer: Fix CPU hotplug callback registration
  intel-idle: Fix CPU hotplug callback registration
  clocksource, dummy-timer: Fix CPU hotplug callback registration
  drivers/base/topology.c: Fix CPU hotplug callback registration
  acpi-cpufreq: Fix CPU hotplug callback registration
  zsmalloc: Fix CPU hotplug callback registration
  scsi, fcoe: Fix CPU hotplug callback registration
  scsi, bnx2fc: Fix CPU hotplug callback registration
  scsi, bnx2i: Fix CPU hotplug callback registration
  ...
2014-04-07 14:55:46 -07:00
Nicholas Bellinger
e70beee783 target: Pass in transport supported PI at session initialization
In order to support local WRITE_INSERT + READ_STRIP operations for
non PI enabled fabrics, the fabric driver needs to be able signal
what protection offload operations are supported.

This is done at session initialization time so the modes can be
signaled by individual se_wwn + se_portal_group endpoints, as well
as optionally across different transports on the same endpoint.

For iser-target, set TARGET_PROT_ALL if the underlying ib_device
has already signaled PI offload support, and allow this to be
exposed via a new iscsit_transport->iscsit_get_sup_prot_ops()
callback.

For loopback, set TARGET_PROT_ALL to signal SCSI initiator mode
operation.

For all other drivers, set TARGET_PROT_NORMAL to disable fabric
level PI.

Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07 01:48:54 -07:00
Nicholas Bellinger
131e6abc67 target: Add TFO->abort_task for aborted task resources release
Now that TASK_ABORTED status is not generated for all cases by
TMR ABORT_TASK + LUN_RESET, a new TFO->abort_task() caller is
necessary in order to give fabric drivers a chance to unmap
hardware / software resources before the se_cmd descriptor is
released via the normal TFO->release_cmd() codepath.

This patch adds TFO->aborted_task() in core_tmr_abort_task()
in place of the original transport_send_task_abort(), and
also updates all fabric drivers to implement this caller.

The fabric drivers that include changes to perform cleanup
via ->aborted_task() are:

  - iscsi-target
  - iser-target
  - srpt
  - tcm_qla2xxx

The fabric drivers that currently set ->aborted_task() to
NOPs are:

  - loopback
  - tcm_fc
  - usb-gadget
  - sbp-target
  - vhost-scsi

For the latter five, there appears to be no additional cleanup
required before invoking TFO->release_cmd() to release the
se_cmd descriptor.

v2 changes:
  - Move ->aborted_task() call into transport_cmd_finish_abort (Alex)

Cc: Alex Leung <amleung21@yahoo.com>
Cc: Mark Rustad <mark.d.rustad@intel.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Vu Pham <vu@mellanox.com>
Cc: Chris Boot <bootc@bootc.net>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-04-07 01:48:51 -07:00
Linus Torvalds
877f075aac Main batch of InfiniBand/RDMA changes for 3.15:
- The biggest change is core API extensions and mlx5 low-level driver
    support for handling DIF/DIX-style protection information, and the
    addition of PI support to the iSER initiator.  Target support will be
    arriving shortly through the SCSI target tree.
 
  - A nice simplification to the "umem" memory pinning library now that
    we have chained sg lists.  Kudos to Yishai Hadas for realizing our
    code didn't have to be so crazy.
 
  - Another nice simplification to the sg wrappers used by qib, ipath and
    ehca to handle their mapping of memory to adapter.
 
  - The usual batch of fixes to bugs found by static checkers etc. from
    intrepid people like Dan Carpenter and Yann Droneaud.
 
  - A large batch of cxgb4, ocrdma, qib driver updates.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJTPYBnAAoJEENa44ZhAt0hGI4P/29eotGwpkANUQE6FQvxCUL2
 CXJtSg52lmYvGJrPK4IhihpbtQmHJz3iXEzlOOWidTw1dJgObR6vFaRymh7+vDLs
 CdzybMcXdasarqTuYeJbFzhkimpwtWWrMy/8Ik/Jj/5glGQ6cUSpdYZzVtFhYNqf
 hCGE8iLi+tuekJJj1htut5D6apXM7udcdc2yLJNOdsSj/VUXt1oqG1x9xAi9R8Tq
 7o8eFSStdlja0EBQ6Hli2zauCSnQkaUtr8h6EAFbcCtvBK8HqsHSc2gfq2ViFUiN
 ztt167oWoQnVkR0qCPL5nVt+CRQHHROprVXvbpcTI3aW61gNIl6OrUUOXefzHXac
 TNi+fdMpiEB/JQ4Z04Jzd1dGCSjYeTqPj4rO4meFjBmxRDdTgZHu7FWwejT1nYJ5
 d2abVdCOT+QWlIlM7m/pjdWJII5OYM+4/jtTayGepEaR4fTUzKtPZPBLNUBDBKE+
 4f92PC8LiuPkwJgb6XT96onPz1bDCOnPSEdwoKUFKPeGUcwgVOM/Wx5NU4Yf7rfg
 RxQwZ7mJXbjCYFlmGGo/0QDy6UEGkIFYlJSzooP+wlK1JvZ5h2M+9QKX2FtwzR+R
 I2kBxcTXWsM/h88R7MkNqbNIllmhssrJwmAE46OneZbfoBOB+JZjb4nLRTu0jEcS
 zn6f16GmJ37BKn2/qYY/
 =Ww6H
 -----END PGP SIGNATURE-----

Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband updates from Roland Dreier:
 "Main batch of InfiniBand/RDMA changes for 3.15:

   - The biggest change is core API extensions and mlx5 low-level driver
     support for handling DIF/DIX-style protection information, and the
     addition of PI support to the iSER initiator.  Target support will
     be arriving shortly through the SCSI target tree.

   - A nice simplification to the "umem" memory pinning library now that
     we have chained sg lists.  Kudos to Yishai Hadas for realizing our
     code didn't have to be so crazy.

   - Another nice simplification to the sg wrappers used by qib, ipath
     and ehca to handle their mapping of memory to adapter.

   - The usual batch of fixes to bugs found by static checkers etc.
     from intrepid people like Dan Carpenter and Yann Droneaud.

   - A large batch of cxgb4, ocrdma, qib driver updates"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (102 commits)
  RDMA/ocrdma: Unregister inet notifier when unloading ocrdma
  RDMA/ocrdma: Fix warnings about pointer <-> integer casts
  RDMA/ocrdma: Code clean-up
  RDMA/ocrdma: Display FW version
  RDMA/ocrdma: Query controller information
  RDMA/ocrdma: Support non-embedded mailbox commands
  RDMA/ocrdma: Handle CQ overrun error
  RDMA/ocrdma: Display proper value for max_mw
  RDMA/ocrdma: Use non-zero tag in SRQ posting
  RDMA/ocrdma: Memory leak fix in ocrdma_dereg_mr()
  RDMA/ocrdma: Increment abi version count
  RDMA/ocrdma: Update version string
  be2net: Add abi version between be2net and ocrdma
  RDMA/ocrdma: ABI versioning between ocrdma and be2net
  RDMA/ocrdma: Allow DPP QP creation
  RDMA/ocrdma: Read ASIC_ID register to select asic_gen
  RDMA/ocrdma: SQ and RQ doorbell offset clean up
  RDMA/ocrdma: EQ full catastrophe avoidance
  RDMA/cxgb4: Disable DSGL use by default
  RDMA/cxgb4: rx_data() needs to hold the ep mutex
  ...
2014-04-03 16:57:19 -07:00
Roland Dreier
f7eaa7ed8f Merge branches 'core', 'cxgb4', 'ip-roce', 'iser', 'misc', 'mlx4', 'nes', 'ocrdma', 'qib', 'sgwrapper', 'srp' and 'usnic' into for-next 2014-04-03 08:30:17 -07:00
Linus Torvalds
159d8133d0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
 "Usual rocket science -- mostly documentation and comment updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  sparse: fix comment
  doc: fix double words
  isdn: capi: fix "CAPI_VERSION" comment
  doc: DocBook: Fix typos in xml and template file
  Bluetooth: add module name for btwilink
  driver core: unexport static function create_syslog_header
  mmc: core: typo fix in printk specifier
  ARM: spear: clean up editing mistake
  net-sysfs: fix comment typo 'CONFIG_SYFS'
  doc: Insert MODULE_ in module-signing macros
  Documentation: update URL to hfsplus Technote 1150
  gpio: update path to documentation
  ixgbe: Fix format string in ixgbe_fcoe.
  Kconfig: Remove useless "default N" lines
  user_namespace.c: Remove duplicated word in comment
  CREDITS: fix formatting
  treewide: Fix typo in Documentation/DocBook
  mm: Fix warning on make htmldocs caused by slab.c
  ata: ata-samsung_cf: cleanup in header file
  idr: remove unused prototype of idr_free()
2014-04-02 16:23:38 -07:00
Linus Torvalds
467cbd207a Merge branch 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 old platform removal from Peter Anvin:
 "This patchset removes support for several completely obsolete
  platforms, where the maintainers either have completely vanished or
  acked the removal.  For some of them it is questionable if there even
  exists functional specimens of the hardware"

Geert Uytterhoeven apparently thought this was a April Fool's pull request ;)

* 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, platforms: Remove NUMAQ
  x86, platforms: Remove SGI Visual Workstation
  x86, apic: Remove support for IBM Summit/EXA chipset
  x86, apic: Remove support for ia32-based Unisys ES7000
2014-04-02 13:15:58 -07:00
Linus Torvalds
7a48837732 Merge branch 'for-3.15/core' of git://git.kernel.dk/linux-block
Pull core block layer updates from Jens Axboe:
 "This is the pull request for the core block IO bits for the 3.15
  kernel.  It's a smaller round this time, it contains:

   - Various little blk-mq fixes and additions from Christoph and
     myself.

   - Cleanup of the IPI usage from the block layer, and associated
     helper code.  From Frederic Weisbecker and Jan Kara.

   - Duplicate code cleanup in bio-integrity from Gu Zheng.  This will
     give you a merge conflict, but that should be easy to resolve.

   - blk-mq notify spinlock fix for RT from Mike Galbraith.

   - A blktrace partial accounting bug fix from Roman Pen.

   - Missing REQ_SYNC detection fix for blk-mq from Shaohua Li"

* 'for-3.15/core' of git://git.kernel.dk/linux-block: (25 commits)
  blk-mq: add REQ_SYNC early
  rt,blk,mq: Make blk_mq_cpu_notify_lock a raw spinlock
  blk-mq: support partial I/O completions
  blk-mq: merge blk_mq_insert_request and blk_mq_run_request
  blk-mq: remove blk_mq_alloc_rq
  blk-mq: don't dump CPU -> hw queue map on driver load
  blk-mq: fix wrong usage of hctx->state vs hctx->flags
  blk-mq: allow blk_mq_init_commands() to return failure
  block: remove old blk_iopoll_enabled variable
  blktrace: fix accounting of partially completed requests
  smp: Rename __smp_call_function_single() to smp_call_function_single_async()
  smp: Remove wait argument from __smp_call_function_single()
  watchdog: Simplify a little the IPI call
  smp: Move __smp_call_function_single() below its safe version
  smp: Consolidate the various smp_call_function_single() declensions
  smp: Teach __smp_call_function_single() to check for offline cpus
  smp: Remove unused list_head from csd
  smp: Iterate functions through llist_for_each_entry_safe()
  block: Stop abusing rq->csd.list in blk-softirq
  block: Remove useless IPI struct initialization
  ...
2014-04-01 19:19:15 -07:00
Linus Torvalds
1a0b6abaea SCSI misc on 20140401
This patch consists of the usual driver updates (megaraid_sas, scsi_debug,
 qla2xxx, qla4xxx, lpfc, bnx2fc, be2iscsi, hpsa, ipr) plus an assortment of
 minor fixes and the first precursors of SCSI-MQ (the code path
 simplifications) and the bug fix for the USB oops on remove (which involves an
 infrastructure change, so is sent via the main tree with a delayed backport
 after a cycle in which it is shown to introduce no new bugs).
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJTOsP1AAoJEDeqqVYsXL0MraUIAMCHWIN791cSc/E4d6mw/6nC
 j5CG/wwuw3VfqJcJJ8PcItfReWPuS7aLwhAx3wNGDUe7Vcz9pmcgJU9c2/ZWhIJH
 D0YXnGSkkfxI9Wc5WJ/NbueS0TFt0G5B6wpIxSLpSEJ1k9I90vxe3symCwv5vS/p
 3Cd2nZZCLg6ArzZJ3PJLnNG9FUp2ZBeZwfPu4CuPm+3kEq9oRATg7bS4NNtVTQLP
 0zNs5rKAVWfnE5Ii8VFjA7DLduG9W1IBNnSI7EERenrLKMbHG5530Rnl71uvjjgY
 0jmQ5YGpTsYcJggLdaijZdK+zuq6Jtc+0DwWJKIE3cEHx3kUrYi4UQWTTRk9ttQ=
 =Bp1Y
 -----END PGP SIGNATURE-----

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "This patch consists of the usual driver updates (megaraid_sas,
  scsi_debug, qla2xxx, qla4xxx, lpfc, bnx2fc, be2iscsi, hpsa, ipr) plus
  an assortment of minor fixes and the first precursors of SCSI-MQ (the
  code path simplifications) and the bug fix for the USB oops on remove
  (which involves an infrastructure change, so is sent via the main tree
  with a delayed backport after a cycle in which it is shown to
  introduce no new bugs)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (196 commits)
  [SCSI] sd: Quiesce mode sense error messages
  [SCSI] add support for per-host cmd pools
  [SCSI] simplify command allocation and freeing a bit
  [SCSI] megaraid: simplify internal command handling
  [SCSI] ses: Use vpd information from scsi_device
  [SCSI] Add EVPD page 0x83 and 0x80 to sysfs
  [SCSI] Return VPD page length in scsi_vpd_inquiry()
  [SCSI] scsi_sysfs: Implement 'is_visible' callback
  [SCSI] hpsa: update driver version to 3.4.4-1
  [SCSI] hpsa: fix bad endif placement in RAID 5 mapper code
  [SCSI] qla2xxx: Fix build errors related to invalid print fields on some architectures.
  [SCSI] bfa: Replace large udelay() with mdelay()
  [SCSI] vmw_pvscsi: Some improvements in pvscsi driver.
  [SCSI] vmw_pvscsi: Add support for I/O requests coalescing.
  [SCSI] vmw_pvscsi: Fix pvscsi_abort() function.
  [SCSI] remove deprecated IRQF_DISABLED from SCSI
  [SCSI] bfa: Updating Maintainers email ids
  [SCSI] ipr: Add new CCIN definition for Grand Canyon support
  [SCSI] ipr: Format HCAM overlay ID 0x21
  [SCSI] ipr: Use pci_enable_msi_range() and pci_enable_msix_range()
  ...
2014-04-01 18:49:04 -07:00
Linus Torvalds
158e0d3621 Driver core / sysfs patches for 3.15-rc1
Here's the big driver core / sysfs update for 3.15-rc1.
 
 Lots of kernfs updates to make it useful for other subsystems, and a few
 other tiny driver core patches.
 
 All have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iEYEABECAAYFAlM7A0wACgkQMUfUDdst+ynJNACfZlY+KNKIhNFt1OOW8rQfSZzy
 1PYAnjYuOoly01JlPrpJD5b4TdxaAq71
 =GVUg
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core and sysfs updates from Greg KH:
 "Here's the big driver core / sysfs update for 3.15-rc1.

  Lots of kernfs updates to make it useful for other subsystems, and a
  few other tiny driver core patches.

  All have been in linux-next for a while"

* tag 'driver-core-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (42 commits)
  Revert "sysfs, driver-core: remove unused {sysfs|device}_schedule_callback_owner()"
  kernfs: cache atomic_write_len in kernfs_open_file
  numa: fix NULL pointer access and memory leak in unregister_one_node()
  Revert "driver core: synchronize device shutdown"
  kernfs: fix off by one error.
  kernfs: remove duplicate dir.c at the top dir
  x86: align x86 arch with generic CPU modalias handling
  cpu: add generic support for CPU feature based module autoloading
  sysfs: create bin_attributes under the requested group
  driver core: unexport static function create_syslog_header
  firmware: use power efficient workqueue for unloading and aborting fw load
  firmware: give a protection when map page failed
  firmware: google memconsole driver fixes
  firmware: fix google/gsmi duplicate efivars_sysfs_init()
  drivers/base: delete non-required instances of include <linux/init.h>
  kernfs: fix kernfs_node_from_dentry()
  ACPI / platform: drop redundant ACPI_HANDLE check
  kernfs: fix hash calculation in kernfs_rename_ns()
  kernfs: add CONFIG_KERNFS
  sysfs, kobject: add sysfs wrapper for kernfs_enable_ns()
  ...
2014-04-01 16:28:19 -07:00
Linus Torvalds
01d5f3b598 Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
 "A lot of activities on libata side this time.

   - A lot of changes around ahci.  Various embedded platforms are
     implementing ahci controllers.  Some were built atop ahci_platform,
     others were doing their own things.  Hans made some structural
     changes to libahci and librarized ahci_platform so that ahci
     platform drivers can share more common code.  A couple platform
     drivers are added on top of that and several are added to replace
     older drivers which were doing their own things (older ones are
     scheduled to be removed).

   - Dan finishes the patchset to make libata PM operations
     asynchronous.  Combined with one patch being routed through scsi,
     this should speed resume measurably.

   - Various fixes and cleanups from Bartlomiej and others"

* 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (61 commits)
  ata: fix Marvell SATA driver dependencies
  ata: fix ARASAN CompactFlash PATA driver dependencies
  ata: remove superfluous casts
  ata: sata_highbank: remove superfluous cast
  ata: fix Calxeda Highbank SATA driver dependencies
  ata: fix R-Car SATA driver dependencies
  ARM: davinci: da850: update SATA AHCI support
  ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller
  ata: move library code from ahci_platform.c to libahci_platform.c
  ata: ahci_platform: fix ahci_platform_data->suspend method handling
  libata: remove unused ata_sas_port_async_resume() stub
  libata.h: add stub for ata_sas_port_resume
  libata: async resume
  libata, libsas: kill pm_result and related cleanup
  ata: Fix compiler warning with APM X-Gene host controller driver
  arm64: Add APM X-Gene SoC AHCI SATA host controller DTS entries
  ata: Add APM X-Gene SoC AHCI SATA host controller driver
  Documentation: Add documentation for the APM X-Gene SoC SATA host controller DTS binding
  arm64: Add APM X-Gene SoC 15Gbps Multi-purpose PHY DTS entries
  ata: ahci_sunxi: fix code formatting
  ...
2014-03-31 15:27:37 -07:00
Linus Torvalds
f24279172d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Update defconfigs for v3.14-rc1
  [SCSI] atari_scsi: Fix sleep_on race
  m68k: head.S - Remove bogus L prefix in comment
  m68k: Remove dead code
  m68k: Remove CONSOLE_PENGUIN macro, adopt CONFIG_LOGO
2014-03-31 15:00:32 -07:00
Martin K. Petersen
b2bff6ceb6 [SCSI] sd: Quiesce mode sense error messages
Messages about discovered disk properties are only printed once unless
they are found to have changed. Errors encountered during mode sense,
however, are printed every time we revalidate.

Quiesce mode sense errors so they are only printed during the first
scan.

[jejb: checkpatch fixes]
Bugzilla: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=733565
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-27 08:26:33 -07:00