| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull SCSI target fixes from Nicholas Bellinger:
"Here are the outstanding target pending fixes for v3.12-rc7.
This includes a number of EXTENDED_COPY related fixes as a result of
Thomas and Doug's continuing testing and feedback.
Also included is an important vhost/scsi fix that addresses a long
standing issue where the 'write' parameter for get_user_pages_fast()
was incorrectly set for virtio-scsi WRITEs -> DMA_TO_DEVICE, and not
for virtio-scsi READs -> DMA_FROM_DEVICE.
This resulted in random userspace segfaults and other unpleasantness
on KVM host, and unfortunately has been an issue since the initial
merge of vhost/scsi in v3.6. This patch is CC'ed to stable, along
with two other less critical items"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
vhost/scsi: Fix incorrect usage of get_user_pages_fast write parameter
target/pscsi: fix return value check
target: Fail XCOPY for non matching source + destination block_size
target: Generate failure for XCOPY I/O with non-zero scsi_status
target: Add missing XCOPY I/O operation sense_buffer
iser-target: check device before dereferencing its variable
target: Return an error for WRITE SAME with ANCHOR==1
target: Fix assignment of LUN in tracepoints
target: Reject EXTENDED_COPY when emulate_3pc is disabled
target: Allow non zero ListID in EXTENDED_COPY parameter list
target: Make target_do_xcopy failures return INVALID_PARAMETER_LIST
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This patch addresses a long-standing bug where the get_user_pages_fast()
write parameter used for setting the underlying page table entry permission
bits was incorrectly set to write=1 for data_direction=DMA_TO_DEVICE, and
passed into get_user_pages_fast() via vhost_scsi_map_iov_to_sgl().
However, this parameter is intended to signal WRITEs to pinned userspace
PTEs for the virtio-scsi DMA_FROM_DEVICE -> READ payload case, and *not*
for the virtio-scsi DMA_TO_DEVICE -> WRITE payload case.
This bug would manifest itself as random process segmentation faults on
KVM host after repeated vhost starts + stops and/or with lots of vhost
endpoints + LUNs.
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Asias He <asias@redhat.com>
Cc: <stable@vger.kernel.org> # 3.6+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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In case of error, the function scsi_host_lookup() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch adds an explicit check + failure for XCOPY I/O to source +
destination devices with a non-matching block_size.
This limitiation is currently due to the fact that the scatterlist
memory allocated for the XCOPY READ operation is passed zero-copy
to the XCOPY WRITE operation.
Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: Thomas Glanzmann <thomas@glanzmann.de>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch adds the missing non-zero se_cmd->scsi_status check required
for local XCOPY I/O within target_xcopy_issue_pt_cmd() to signal an
exception case failure.
This will trigger the generation of SAM_STAT_CHECK_CONDITION status
from within target_xcopy_do_work() process context code.
Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: Thomas Glanzmann <thomas@glanzmann.de>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch adds the missing xcopy_pt_cmd->sense_buffer[] required for
correctly handling CHECK_CONDITION exceptions within the locally
generated XCOPY I/O path.
Also update target_xcopy_read_source() + target_xcopy_setup_pt_cmd()
to pass this buffer into transport_init_se_cmd() to correctly setup
se_cmd->sense_buffer.
Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: Thomas Glanzmann <thomas@glanzmann.de>
Cc: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch changes isert_connect_release() to correctly check for
the existence struct isert_device *device before checking for
isert_device->use_frwr.
Signed-off-by: Vu Pham <vu@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Per SBC-3, since we report ANC_SUP==0 in VPD page B2h, we need to return
an error (ILLEGAL REQUEST/INVALID FIELD IN CDB) for all WRITE SAME
requests with ANCHOR==1.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch rejects EXTENDED_COPY when the emulate_3pc attribute has
been explicitly disabled for the receiving device.
It also adds a similar check in target_xcopy_locate_se_dev_e4() to
ignore these devices when doing a search based upon the identifier
WWN provided by EXTENDED_COPY parameter list target descriptors.
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch changes target_do_xcopy() to allow processing of non-zero
ListIDs in EXTENDED_COPY parameter list data, instead of returning
CHECK_CONDITION status.
As the copy offload implementation reports SNLID=1 (Supports No ListID)
in OPERATING PARAMETERS, any ListID value presented by the client is
currently ignored.
Also, properly extract list_id_usage for informational purposes.
Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch changes target_do_xcopy() to properly return
TCM_INVALID_PARAMETER_LIST instead of TCM_INVALID_CDB_FIELD
for failures related to the EXTENDED_COPY parameter list parsing.
Also, move struct xcopy_op allocation ahead of kmapping to
handle the special TCM_OUT_OF_RESOURCES case.
Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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Pull slave-dmaengine fixes from Vinod Koul:
"Here is the late fixes pull request for dmaengine while you fly back
from KS.
We have a new dmaengine ML hosted by vger so a patch for that along
with addition of Dave as driver mainatainer for ioat. Other fixes are
memeory leak fixes on edma driver, small fixes on rcar-hpbdma driver
by Sergei"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: edma: fix another memory leak
dma: edma: Fix memory leak
MAINTAINERS: add to ioatdma maintainer list
MAINTAINERS: add the new dmaengine mailing list
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commit 4b6271a6 fix a menory leak but one more existed in driver so fix that
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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When it fails to allocate a slot, edesc should be free'd before return;
Signed-off-by: Valentin Ilie <valentin.ilie@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from
"These fix two bugs in the intel_pstate driver, a hibernate bug leading
to nasty resume failures sometimes and acpi-cpufreq initialization bug
that causes problems to happen during module unload when intel_pstate
is in use.
Specifics:
- Fix for rounding errors in intel_pstate causing CPU utilization to
be underestimated from Brennan Shacklett.
- intel_pstate fix to always use the correct max pstate value when
computing the min pstate from Dirk Brandewie.
- Hibernation fix for deadlocking resume in cases when the probing of
the device containing the image is deferred from Russ Dill.
- acpi-cpufreq fix to prevent the module from staying in memory when
the driver cannot be registered and then attempting to unregister
things that have never been registered on exit"
* tag 'pm+acpi-3.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
acpi-cpufreq: Fail initialization if driver cannot be registered
PM / hibernate: Move software_resume to late_initcall_sync
intel_pstate: Correct calculation of min pstate value
intel_pstate: Improve accuracy by not truncating until final result
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Make acpi_cpufreq_init() return error codes when the driver cannot be
registered so that the module doesn't stay useless in memory and so
that acpi_cpufreq_exit() doesn't attempt to unregister things that
have never been registered when the module is unloaded.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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The minimum pstate is supposed to be a percentage of the maximum P
state available. Calculate min using max pstate and not the
current max which may have been limited by the user
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch addresses Bug 60727
(https://bugzilla.kernel.org/show_bug.cgi?id=60727)
which was due to the truncation of intermediate values in the
calculations, which causes the code to consistently underestimate the
current cpu frequency, specifically 100% cpu utilization was truncated
down to the setpoint of 97%. This patch fixes the problem by keeping
the results of all intermediate calculations as fixed point numbers
rather scaling them back and forth between integers and fixed point.
References: https://bugzilla.kernel.org/show_bug.cgi?id=60727
Signed-off-by: Brennan Shacklett <bpshacklett@gmail.com>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pull final mtd fixes from Brian Norris:
"A few more last-minute regression fixes, prepared jointly by me and
David Woodhouse:
- Revert pxa3xx to its old name to avoid breaking existing
'mtdparts=' boot strings.
- Return GPMI NAND to its legacy ECC layout for backwards
compatibility. We will revisit this in 3.13.
A note from David on the latter fix: 'This leaves a harmless cosmetic
warning about an unused function. At this point in the cycle I really
don't care.'"
* tag 'for-linus-20131025' of git://git.infradead.org/linux-mtd:
mtd: gpmi: fix ECC regression
mtd: nand: pxa3xx: Fix registered MTD name
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The "legacy" ECC layout used until 3.12-rc1 uses all the OOB area by
computing the ECC strength and ECC step size ourselves.
Commit 2febcdf84b ("mtd: gpmi: set the BCHs geometry with the ecc info")
makes the driver use the ECC info (ECC strength and ECC step size)
provided by the MTD code, and creates a different NAND ECC layout
for the BCH, and use the new ECC layout. This causes a regression:
We can not mount the ubifs which was created by the old NAND ECC layout.
This patch fixes this issue by reverting to the legacy ECC layout.
We will probably introduce a new device-tree property to indicate that
the new ECC layout can be used. For now though, for the imminent 3.12
release, we just unconditionally revert to the 3.11 behaviour.
This leaves a harmless cosmetic warning about an unused function. At
this point in the cycle I really don't care.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Huang Shijie <b32955@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de>
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In a recent commit:
commit f455578dd961087a5cf94730d9f6489bb1d355f0
Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Mon Aug 12 14:14:53 2013 -0300
mtd: nand: pxa3xx: Remove hardcoded mtd name
There's no advantage in using a hardcoded name for the mtd device.
Instead use the provided by the platform_device.
The MTD name was changed to use the one provided by the platform_device.
However, this can be problematic as some users want to set partitions
using the kernel parameter 'mtdparts', where the name is needed.
Therefore, to avoid regressions in users relying in 'mtdparts' we revert
the change and use the previous one 'pxa3xx_nand-0'.
While at it, let's put a big comment and prevent this change from happening
ever again.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Pull md bugfixes from Neil Brown:
"Assorted md bug-fixes for 3.12.
All tagged for -stable releases too"
* tag 'md/3.12-fixes' of git://neil.brown.name/md:
raid5: avoid finding "discard" stripe
raid5: set bio bi_vcnt 0 for discard request
md: avoid deadlock when md_set_badblocks.
md: Fix skipping recovery for read-only arrays.
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SCSI discard will damage discard stripe bio setting, eg, some fields are
changed. If the stripe is reused very soon, we have wrong bios setting. We
remove discard stripe from hash list, so next time the strip will be fully
initialized.
Suitable for backport to 3.7+.
Cc: <stable@vger.kernel.org> (3.7+)
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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SCSI layer will add new payload for discard request. If two bios are merged
to one, the second bio has bi_vcnt 1 which is set in raid5. This will confuse
SCSI and cause oops.
Suitable for backport to 3.7+
Cc: stable@vger.kernel.org (v3.7+)
Reported-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
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When operate harddisk and hit errors, md_set_badblocks is called after
scsi_restart_operations which already disabled the irq. but md_set_badblocks
will call write_sequnlock_irq and enable irq. so softirq can preempt the
current thread and that may cause a deadlock. I think this situation should
use write_sequnlock_irqsave/irqrestore instead.
I met the situation and the call trace is below:
[ 638.919974] BUG: spinlock recursion on CPU#0, scsi_eh_13/1010
[ 638.921923] lock: 0xffff8800d4d51fc8, .magic: dead4ead, .owner: scsi_eh_13/1010, .owner_cpu: 0
[ 638.923890] CPU: 0 PID: 1010 Comm: scsi_eh_13 Not tainted 3.12.0-rc5+ #37
[ 638.925844] Hardware name: To be filled by O.E.M. To be filled by O.E.M./MAHOBAY, BIOS 4.6.5 03/05/2013
[ 638.927816] ffff880037ad4640 ffff880118c03d50 ffffffff8172ff85 0000000000000007
[ 638.929829] ffff8800d4d51fc8 ffff880118c03d70 ffffffff81730030 ffff8800d4d51fc8
[ 638.931848] ffffffff81a72eb0 ffff880118c03d90 ffffffff81730056 ffff8800d4d51fc8
[ 638.933884] Call Trace:
[ 638.935867] <IRQ> [<ffffffff8172ff85>] dump_stack+0x55/0x76
[ 638.937878] [<ffffffff81730030>] spin_dump+0x8a/0x8f
[ 638.939861] [<ffffffff81730056>] spin_bug+0x21/0x26
[ 638.941836] [<ffffffff81336de4>] do_raw_spin_lock+0xa4/0xc0
[ 638.943801] [<ffffffff8173f036>] _raw_spin_lock+0x66/0x80
[ 638.945747] [<ffffffff814a73ed>] ? scsi_device_unbusy+0x9d/0xd0
[ 638.947672] [<ffffffff8173fb1b>] ? _raw_spin_unlock+0x2b/0x50
[ 638.949595] [<ffffffff814a73ed>] scsi_device_unbusy+0x9d/0xd0
[ 638.951504] [<ffffffff8149ec47>] scsi_finish_command+0x37/0xe0
[ 638.953388] [<ffffffff814a75e8>] scsi_softirq_done+0xa8/0x140
[ 638.955248] [<ffffffff8130e32b>] blk_done_softirq+0x7b/0x90
[ 638.957116] [<ffffffff8104fddd>] __do_softirq+0xfd/0x330
[ 638.958987] [<ffffffff810b964f>] ? __lock_release+0x6f/0x100
[ 638.960861] [<ffffffff8174a5cc>] call_softirq+0x1c/0x30
[ 638.962724] [<ffffffff81004c7d>] do_softirq+0x8d/0xc0
[ 638.964565] [<ffffffff8105024e>] irq_exit+0x10e/0x150
[ 638.966390] [<ffffffff8174ad4a>] smp_apic_timer_interrupt+0x4a/0x60
[ 638.968223] [<ffffffff817499af>] apic_timer_interrupt+0x6f/0x80
[ 638.970079] <EOI> [<ffffffff810b964f>] ? __lock_release+0x6f/0x100
[ 638.971899] [<ffffffff8173fa6a>] ? _raw_spin_unlock_irq+0x3a/0x50
[ 638.973691] [<ffffffff8173fa60>] ? _raw_spin_unlock_irq+0x30/0x50
[ 638.975475] [<ffffffff81562393>] md_set_badblocks+0x1f3/0x4a0
[ 638.977243] [<ffffffff81566e07>] rdev_set_badblocks+0x27/0x80
[ 638.978988] [<ffffffffa00d97bb>] raid5_end_read_request+0x36b/0x4e0 [raid456]
[ 638.980723] [<ffffffff811b5a1d>] bio_endio+0x1d/0x40
[ 638.982463] [<ffffffff81304ff3>] req_bio_endio.isra.65+0x83/0xa0
[ 638.984214] [<ffffffff81306b9f>] blk_update_request+0x7f/0x350
[ 638.985967] [<ffffffff81306ea1>] blk_update_bidi_request+0x31/0x90
[ 638.987710] [<ffffffff813085e0>] __blk_end_bidi_request+0x20/0x50
[ 638.989439] [<ffffffff8130862f>] __blk_end_request_all+0x1f/0x30
[ 638.991149] [<ffffffff81308746>] blk_peek_request+0x106/0x250
[ 638.992861] [<ffffffff814a62a9>] ? scsi_kill_request.isra.32+0xe9/0x130
[ 638.994561] [<ffffffff814a633a>] scsi_request_fn+0x4a/0x3d0
[ 638.996251] [<ffffffff813040a7>] __blk_run_queue+0x37/0x50
[ 638.997900] [<ffffffff813045af>] blk_run_queue+0x2f/0x50
[ 638.999553] [<ffffffff814a5750>] scsi_run_queue+0xe0/0x1c0
[ 639.001185] [<ffffffff814a7721>] scsi_run_host_queues+0x21/0x40
[ 639.002798] [<ffffffff814a2e87>] scsi_restart_operations+0x177/0x200
[ 639.004391] [<ffffffff814a4fe9>] scsi_error_handler+0xc9/0xe0
[ 639.005996] [<ffffffff814a4f20>] ? scsi_unjam_host+0xd0/0xd0
[ 639.007600] [<ffffffff81072f6b>] kthread+0xdb/0xe0
[ 639.009205] [<ffffffff81072e90>] ? flush_kthread_worker+0x170/0x170
[ 639.010821] [<ffffffff81748cac>] ret_from_fork+0x7c/0xb0
[ 639.012437] [<ffffffff81072e90>] ? flush_kthread_worker+0x170/0x170
This bug was introduce in commit 2e8ac30312973dd20e68073653
(the first time rdev_set_badblock was call from interrupt context),
so this patch is appropriate for 3.5 and subsequent kernels.
Cc: <stable@vger.kernel.org> (3.5+)
Signed-off-by: Bian Yu <bianyu@kedacom.com>
Reviewed-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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Since:
commit 7ceb17e87bde79d285a8b988cfed9eaeebe60b86
md: Allow devices to be re-added to a read-only array.
spares are activated on a read-only array. In case of raid1 and raid10
personalities it causes that not-in-sync devices are marked in-sync
without checking if recovery has been finished.
If a read-only array is degraded and one of its devices is not in-sync
(because the array has been only partially recovered) recovery will be skipped.
This patch adds checking if recovery has been finished before marking a device
in-sync for raid1 and raid10 personalities. In case of raid5 personality
such condition is already present (at raid5.c:6029).
Bug was introduced in 3.10 and causes data corruption.
Cc: stable@vger.kernel.org
Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com>
Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of two fixes which cause oopses (Buslogic, qla2xxx) and
one fix which may cause a hang because of request miscounting (sd)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] sd: call blk_pm_runtime_init before add_disk
[SCSI] qla2xxx: Fix request queue null dereference.
[SCSI] BusLogic: Fix an oops when intializing multimaster adapter
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Sujit has found a race condition that would make q->nr_pending
unbalanced, it occurs as Sujit explained:
"
sd_probe_async() ->
add_disk() ->
disk_add_event() ->
schedule(disk_events_workfn)
sd_revalidate_disk()
blk_pm_runtime_init()
return;
Let's say the disk_events_workfn() calls sd_check_events() which tries
to send test_unit_ready() and because of sd_revalidate_disk() trying to
send another commands the test_unit_ready() might be re-queued as the
tagged command queuing is disabled.
So the race condition is -
Thread 1 | Thread 2
sd_revalidate_disk() | sd_check_events()
...nr_pending = 0 as q->dev = NULL| scsi_queue_insert()
blk_runtime_pm_init() | blk_pm_requeue_request() ->
| nr_pending = -1 since
| q->dev != NULL
"
The problem is, the test_unit_ready request doesn't get counted the
first time it is queued, so the later decrement of q->nr_pending in
blk_pm_requeue_request makes it unbalanced.
Fix this by calling blk_pm_runtime_init before add_disk so that all
requests initiated there will all be counted.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Reported-and-tested-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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If an invalid IOCB is returned on the response queue then the index into the
request queue map could be invalid and could return to us a bogus value. This
could cause us to try to deference an invalid pointer and cause an exception.
If we encounter this condition, simply return as no context can be established
for this response.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This fixes an oops caused by buslogic driver when initializing a BusLogic
MultiMaster adapter. Initialization code used scope of a variable
incorrectly which created a NULL pointer. Oops message is below:
BUG: unable to handle kernel NULL pointer dereference at 0000000c
IP: [<c150c137>] blogic_init_mm_probeinfo.isra.17+0x20a/0x583
*pde = 00000000
Oops: 002 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.11.1.puz1 #1
Hardware name: /Canterwood, BIOS 6.00 PG 05/16/2003
task: f7050000 ti: f7054000 task.ti: f7054000
EIP: 0060:[<c150c137>] EFLAGS: 00010246 CPU:1
EIP is at blogic_init_mm_probeinfo.isra.17+0x20a/0x583
EAX: 00000013 EBX: 00000000 ECX: 00000000 EDX: f8001000
ESI: f71cb800 EDI: f7388000 EBP: 00007800 ESP: f7055c84
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
CR0: 8005003b CR2: 0000000c CR3: 0154f000 CR4: 000007d0
Stack:
0000001c 00000000 c11a59f6 f7055c98 00008130 ffffffff ffffffff 00000000
00000003 00000000 00000000 00000000 00000013 f8001000 00000001 000003d0
00000000 00000000 00000000 c14e3f84 f78803c8 00000000 f738c000 000000e9
Call Trace:
[<c11a59f6>] ? pci_get_subsys+0x33/0x38
[<c150c4fb>] ? blogic_init_probeinfo_list+0x4b/0x19e
[<c108d593>] ? __alloc_pages_nodemask+0xe3/0x623
[<c108d593>] ? __alloc_pages_nodemask+0xe3/0x623
[<c10fb99e>] ? sysfs_link_sibling+0x61/0x8d
[<c10b0519>] ? kmem_cache_alloc+0x8b/0xb5
[<c150cce5>] ? blogic_init+0xa1/0x10e8
[<c10fc0a8>] ? sysfs_add_one+0x10/0x9d
[<c10fc18a>] ? sysfs_addrm_finish+0x12/0x85
[<c10fca37>] ? sysfs_do_create_link_sd+0x9d/0x1b4
[<c117c272>] ? blk_register_queue+0x69/0xb3
[<c10fcb68>] ? sysfs_create_link+0x1a/0x2c
[<c1181a07>] ? add_disk+0x1a1/0x3c7
[<c138737b>] ? klist_next+0x60/0xc3
[<c122cc3a>] ? scsi_dh_detach+0x68/0x68
[<c1213e36>] ? bus_for_each_dev+0x51/0x61
[<c1000356>] ? do_one_initcall+0x22/0x12c
[<c10f3688>] ? __proc_create+0x8c/0xba
[<c150cc44>] ? blogic_setup+0x5f6/0x5f6
[<c14e94aa>] ? repair_env_string+0xf/0x4d
[<c14e949b>] ? do_early_param+0x71/0x71
[<c103efaa>] ? parse_args+0x21f/0x33d
[<c14e9a54>] ? kernel_init_freeable+0xdf/0x17d
[<c14e949b>] ? do_early_param+0x71/0x71
[<c1388b64>] ? kernel_init+0x8/0xc0
[<c1392222>] ? ret_from_kernel_thread+0x6/0x28
[<c1392227>] ? ret_from_kernel_thread+0x1b/0x28
[<c1388b5c>] ? rest_init+0x6c/0x6c
Code: 89 44 24 10 0f b6 44 24 3d 89 44 24 0c c7 44 24 08 00 00 00 00 c7 44 24 04 38 62 46 c1 c7 04 24 02 00 00 00 e8 78 13 d2 ff 31 db <89> 6b 0c b0 20 89 ea ee
c7 44 24 08 04 00 00 00 8d 44 24 4c 89
EIP: [<c150c137>] blogic_init_mm_probeinfo.isra.17+0x20a/0x583 SS:ESP 0068:f7055c84
CR2: 000000000000000c
---[ end trace 17f45f5196d40487 ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Cc: <stable@vger.kernel.org> # 3.11.x
Reported-by: Pierre Uszynski <pierre@rahul.net>
Tested-by: Pierre Uszynski <pierre@rahul.net>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Several last minute bug fixes.
Two of them are on the larger side for rc7, the dasd format patch for
older storage devices and the store-clock-fast patch where we have
been to optimistic with an optimization"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/time: correct use of store clock fast
s390/vmlogrdr: fix array access in vmlogrdr_open()
s390/compat,signal: fix return value of copy_siginfo_(to|from)_user32()
s390/dasd: check for availability of prefix command during format
s390/mm,kvm: fix software dirty bits vs. kvm for old machines
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The result of the store-clock-fast (STCKF) instruction is a bit fuzzy.
It can happen that the value stored on one CPU is smaller than the value
stored on another CPU, although the order of the stores is the other
way around. This can cause deltas of get_tod_clock() values to become
negative when they should not be.
We need to be more careful with store-clock-fast, this patch partially
reverts git commit e4b7b4238e666682555461fa52eecd74652f36bb "time:
always use stckf instead of stck if available". The get_tod_clock()
function now uses the store-clock-extended (STCKE) instruction.
get_tod_clock_fast() can be used if the fuzziness of store-clock-fast
is acceptable e.g. for wait loops local to a CPU.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Fix check within vmlogrdr_open() if the minor address is not larger
than the number of array elements.
Found with "smatch":
drivers/s390/char/vmlogrdr.c:318 vmlogrdr_open() warn:
buffer overflow 'sys_ser' 3 <= 3
Acked-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The prefix command is used instead of a define extent to make use of
PAV alias devices during format. On some older storage servers the
prefix command may not be available and the IO request will fail.
Check for availability of prefix command and use define extent if
not available.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management fixes from Zhang Rui:
"These includes several commits that are necessary to properly fix
regression for TMU test MUX address setting after reset, for exynos
thermal driver.
Specifics:
- fix a regression that the removal of setting a certain field at TMU
configuration setting results in immediately shutdown after reset
on Exynos4412 SoC.
- revert a patch which tries to link the thermal_zone device and its
hwmon node but breaks libsensors.
- fix a deadlock/lockdep warning issue in x86_pkg_temp thermal
driver, which can be reproduced on a buggy platform only.
- fix ti-soc-thermal driver to fall back on bandgap reading when
reading from PCB temperature sensor fails"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
Revert "drivers: thermal: parent virtual hwmon with thermal zone"
drivers: thermal: allow ti-soc-thermal run without pcb zone
thermal: exynos: Provide initial setting for TMU's test MUX address at Exynos4412
thermal: exynos: Provide separate TMU data for Exynos4412
thermal: exynos: Remove check for thermal device pointer at exynos_report_trigger()
Thermal: x86_pkg_temp: change spin lock
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x86_pkg_temp receives thermal notifications via a callback from a
therm_throt driver, where thermal interrupts are processed.
This callback is pkg_temp_thermal_platform_thermal_notify. Here to
avoid multiple interrupts from cores in a package, we disable the
source and also set a variable to avoid scheduling delayed work function.
This variable is protected via spin_lock_irqsave. On one buggy platform,
we still receiving interrupts even if the source is disabled. This
can cause deadlock/lockdep warning, when interrupt is generated while under
spinlock in work function.
Change spin_lock to spin_lock_irqsave and spin_unlock to
spin_unlock_irqrestore as the data it is trying to protect can also
be modified in a notification call called from interrupt handler.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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Commit b82715fdd4a5407f56853b24d387d484dd9c3b5b introduces
a 'device' subdirectory under /sys/class/hwmon/hwmonX/ directory,
for the thermal_zone hwmon devices. And this results in different
handling by libsensors.
The problem is reported and discussed in this thread
http://marc.info/?l=linux-pm&m=138229306109596&w=2
This patch reverts commit b82715fdd4a5407f56853b24d387d484dd9c3b5b.
Reported-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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This patch changes the behavior of TI SoC thermal driver
when there is a PCB thermal zone.
Instead of reporting an error code when reading from
PCB temperature sensor fails, this patch will make
the driver attempt to compose the hotspot extrapolation
based on bandgap readings only.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
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Exynos4412
The commit d0a0ce3e77c795258d47f9163e92d5031d0c5221 ("thermal: exynos: Add
missing definations and code cleanup") has removed setting of test MUX address
value at TMU configuration setting.
This field is not present on Exynos4210 and Exynos5 SoCs. However on Exynos4412
SoC it is required to set this field after reset because without it TMU shows
maximal available temperature, which causes immediate platform shutdown.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
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Up till now Exynos5250 and Exynos4412 had the same definitions for TMU
data. Following commit changes that, by introducing separate
exynos4412_default_tmu_data structure.
Since Exynos4412 was chronologically first, the corresponding name for
TMU registers and default data was renamed.
Additionally, new SOC_ARCH_EXYNOS4412 type has been defined.
Moreover, the SOC_ARCH_EXYNOS name has been changed to SOC_ARCH_EXYNOS5250.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
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exynos_report_trigger()
The commit 4de0bdaa9677d11406c9becb70c60887c957e1f0
("thermal: exynos: Add support for instance based register/unregister")
broke check for presence of therm_dev at global thermal zone in
exynos_report_trigger().
The resulting wrong test prevents thermal_zone_device_update() call, which
calls handlers for situation when trip points are passed.
Such behavior prevents thermal driver from proper reaction (when TMU interrupt
is raised) in a situation when overheating is detected at TMU hardware.
It turns out, that after exynos thermal subsystem redesign (at v3.12) this
check is not needed, since it is not possible to register thermal zone
without valid thermal device.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
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Fix build error in asus_wmi.c when ASUS_WMI=y and ACPI_VIDEO=m
by preventing that combination.
drivers/built-in.o: In function `asus_wmi_probe':
asus-wmi.c:(.text+0x65ddb4): undefined reference to `acpi_video_unregister'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- Compilation fixes for GCC < 4.4.6
- one Kbuild dependency select fix (selecting videobuf on msi3101)
- driver fixes on tda10071, e4000, msi3101, soc_camera, s5p-jpeg,
saa7134 and adv7511
- some device quirks needed to make them work properly
- some videobuf2 core regression fixes for some features used only on
embedded drivers
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] saa7134: Fix crash when device is closed before streamoff
[media] adv7511: fix error return code in adv7511_probe()
[media] ths8200: fix compilation with GCC < 4.4.6
[media] ad9389b: fix compilation with GCC < 4.4.6
[media] adv7511: fix compilation with GCC < 4.4.6
[media] adv7842: fix compilation with GCC < 4.4.6
[media] s5p-jpeg: Initialize vfd_decoder->vfl_dir field
[media] videobuf2-dc: Fix support for mappings without struct page in userptr mode
[media] vb2: Allow queuing OUTPUT buffers with zeroed 'bytesused'
[media] mx3-camera: locking cleanup in mx3_videobuf_queue()
[media] sh_vou: almost forever loop in sh_vou_try_fmt_vid_out()
[media] tda10071: change firmware download condition
[media] msi3101: correct max videobuf2 alloc
[media] Add HCL T12Rg-H to STK webcam upside-down table
[media] msi3101: Kconfig select VIDEOBUF2_VMALLOC
[media] msi3101: msi3101_ioctl_ops can be static
[media] e4000: fix PLL calc bug on 32-bit arch
[media] uvcvideo: quirk PROBE_DEF for Microsoft Lifecam NX-3000
[media] uvcvideo: quirk PROBE_DEF for Dell SP2008WFP monitor
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pm_qos_remove_request was not called on video_release, resulting in the PM
core's list of requests being corrupted when the file handle was freed.
This has no immediate symptoms, but later in operation, the kernel will
panic as the PM core dereferences a dangling pointer.
Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Fix to return -ENOMEM in the new i2c client and create workqueue error
handling case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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