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Merge tag 'integrity-v5.8-fix-2' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity updates from Mimi Zohar:
"Include PCRs 8 & 9 in per TPM 2.0 bank boot_aggregate calculation.
Prior to Linux 5.8 the SHA1 "boot_aggregate" value was padded with 0's
and extended into the other TPM 2.0 banks.
Included in the Linux 5.8 open window, TPM 2.0 PCR bank specific
"boot_aggregate" values (PCRs 0 - 7) are calculated and extended into the TPM banks.
Distro releases are now shipping grub2 with TPM support, which extend
PCRs 8 & 9. I'd like for PCRs 8 & 9 to be included in the new
"boot_aggregate" calculations.
For backwards compatibility, if the hash is SHA1, these new PCRs are
not included in the boot aggregate"
* tag 'integrity-v5.8-fix-2' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
ima: extend boot_aggregate with kernel measurements
There is a statement that is indented one level too deeply, fix it
by removing a tab.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Move .nr_active update and request assignment into blk_mq_get_driver_tag(),
all are good to do during getting driver tag.
Meantime blk-flush related code is simplified and flush request needn't
to update the request table manually any more.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
It is used by blk-mq.c only, so move it to the source file.
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
blk_mq_get_driver_tag() is only used by blk-mq.c and is supposed to
stay in blk-mq.c, so move it and preparing for cleanup code of
get/put driver tag.
Meantime hctx_may_queue() is moved to header file and it is fine
since it is defined as inline always.
No functional change.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Since 5.7, we've been using task_work to trigger async running of
requests in the context of the original task. This generally works
great, but there's a case where if the task is currently blocked
in the kernel waiting on a condition to become true, it won't process
task_work. Even though the task is woken, it just checks whatever
condition it's waiting on, and goes back to sleep if it's still false.
This is a problem if that very condition only becomes true when that
task_work is run. An example of that is the task registering an eventfd
with io_uring, and it's now blocked waiting on an eventfd read. That
read could depend on a completion event, and that completion event
won't get trigged until task_work has been run.
Use the TWA_SIGNAL notification for task_work, so that we ensure that
the task always runs the work when queued.
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Jens Axboe <axboe@kernel.dk>
So that the target task will exit the wait_event_interruptible-like
loop and call task_work_run() asap.
The patch turns "bool notify" into 0,TWA_RESUME,TWA_SIGNAL enum, the
new TWA_SIGNAL flag implies signal_wake_up(). However, it needs to
avoid the race with recalc_sigpending(), so the patch also adds the
new JOBCTL_TASK_WORK bit included in JOBCTL_PENDING_MASK.
TODO: once this patch is merged we need to change all current users
of task_work_add(notify = true) to use TWA_RESUME.
Cc: stable@vger.kernel.org # v5.7
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Tiger Lake's new unique ACPI device ID for Fan is not valid
because of missing 'C' in the ID. Use correct fan device ID.
Fixes: c248dfe7e0ca ("ACPI: fan: Add Tiger Lake ACPI device ID")
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Cc: 5.6+ <stable@vger.kernel.org> # 5.6+
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Adjust the reg property to fix the following warning seen with
'make dt_binding_check':
Documentation/devicetree/bindings/thermal/ti,am654-thermal.example.dt.yaml: example-0: thermal@42050000:reg:0: [0, 1107623936, 0, 604] is too long
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200630122527.28640-1-festevam@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
Remove the soc unit address to fix the following warnings seen with
'make dt_binding_check':
Documentation/devicetree/bindings/thermal/thermal-sensor.example.dts:22.20-49.11: Warning (unit_address_vs_reg): /example-0/soc@0: node has a unit name, but no reg or ranges property
Documentation/devicetree/bindings/thermal/thermal-zones.example.dts:23.20-50.11: Warning (unit_address_vs_reg): /example-0/soc@0: node has a unit name, but no reg or ranges property
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200630121804.27887-1-festevam@gmail.com
[robh: also fix thermal-zones.yaml example]
Signed-off-by: Rob Herring <robh@kernel.org>
Pass the sysreg unit name to fix the following warning seen with
'make dt_binding_check':
Warning (unit_address_vs_reg): /example-0/sysreg: node has a reg or ranges property, but no unit name
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200629215500.18037-1-festevam@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
Remove the leading zeroes to fix the following warning seen with
'make dt_binding_check':
Documentation/devicetree/bindings/usb/aspeed,usb-vhub.example.dts:37.33-42.23: Warning (unit_address_format): /example-0/usb-vhub@1e6a0000/vhub-strings/string@0409: unit name should not have leading 0s
Reviewed-by: Tao Ren <rentao.bupt@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20200629214027.16768-1-festevam@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
There are two processed schema files:
- processed-schema-examples.yaml
Used for 'make dt_binding_check'. This is always a full schema.
- processed-schema.yaml
Used for 'make dtbs_check'. This may be a full schema, or a smaller
subset if DT_SCHEMA_FILES is given by a user.
If DT_SCHEMA_FILES is not specified, they are the same. You can copy
the former to the latter instead of running dt-mk-schema twice. This
saves the cpu time a lot when you do 'make dt_binding_check dtbs_check'
because building the full schema takes a couple of seconds.
If DT_SCHEMA_FILES is specified, processed-schema.yaml is generated
based on the specified yaml files.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20200625170434.635114-4-masahiroy@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Currently, processed-schema.yaml is always built, but it is actually
used only for 'make dtbs_check'.
'make dt_binding_check' uses processed-schema-example.yaml instead.
Build processed-schema.yaml only for 'make dtbs_check'.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20200625170434.635114-3-masahiroy@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
We are having more and more schema files.
Commit 8b6b80218b01 ("dt-bindings: Fix command line length limit
calling dt-mk-schema") fixed the 'Argument list too long' error of
the schema checks, but the same error happens while cleaning too.
'make clean' after 'make dt_binding_check' fails as follows:
$ make dt_binding_check
[ snip ]
$ make clean
make[2]: execvp: /bin/sh: Argument list too long
make[2]: *** [scripts/Makefile.clean:52: __clean] Error 127
make[1]: *** [scripts/Makefile.clean:66: Documentation/devicetree/bindings] Error 2
make: *** [Makefile:1763: _clean_Documentation] Error 2
'make dt_binding_check' generates so many .example.dts, .dt.yaml files,
which are passed to the 'rm' command when you run 'make clean'.
I added a small hack to use the 'find' command to clean up most of the
build artifacts before they are processed by scripts/Makefile.clean
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20200625170434.635114-2-masahiroy@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Since commit e69f5dc623f9 ("dt-bindings: serial: Convert 8250 to
json-schema"), the schema for "ns16550a" is checked.
'make dt_binding_check' emits the following warning:
uart@5,00200000: $nodename:0: 'uart@5,00200000' does not match '^serial(@[0-9a-f,]+)*$'
Rename the node to follow the pattern defined in
Documentation/devicetree/bindings/serial/serial.yaml
While I was here, I removed leading zeros from unit names.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lore.kernel.org/r/20200623113242.779241-1-yamada.masahiro@socionext.com
Signed-off-by: Rob Herring <robh@kernel.org>
Sync with upstream dtc primarily to pickup the I2C bus check fixes. The
interrupt_provider check is noisy, so turn it off for now.
This adds the following commits from upstream:
9d7888cbf19c dtc: Consider one-character strings as strings
8259d59f59de checks: Improve i2c reg property checking
fdabcf2980a4 checks: Remove warning for I2C_OWN_SLAVE_ADDRESS
2478b1652c8d libfdt: add extern "C" for C++
f68bfc2668b2 libfdt: trivial typo fix
7be250b4d059 libfdt: Correct condition for reordering blocks
81e0919a3e21 checks: Add interrupt provider test
85e5d839847a Makefile: when building libfdt only, do not add unneeded deps
b28464a550c5 Fix some potential unaligned accesses in dtc
Signed-off-by: Rob Herring <robh@kernel.org>
More and more drivers want to get batching requests queued from
block layer, such as mmc, and tcp based storage drivers. Also
current in-tree users have virtio-scsi, virtio-blk and nvme.
For none, we already support batching dispatch.
But for io scheduler, every time we just take one request from scheduler
and pass the single request to blk_mq_dispatch_rq_list(). This way makes
batching dispatch not possible when io scheduler is applied. One reason
is that we don't want to hurt sequential IO performance, becasue IO
merge chance is reduced if more requests are dequeued from scheduler
queue.
Try to support batching dispatch for io scheduler by starting with the
following simple approach:
1) still make sure we can get budget before dequeueing request
2) use hctx->dispatch_busy to evaluate if queue is busy, if it is busy
we fackback to non-batching dispatch, otherwise dequeue as many as
possible requests from scheduler, and pass them to blk_mq_dispatch_rq_list().
Wrt. 2), we use similar policy for none, and turns out that SCSI SSD
performance got improved much.
In future, maybe we can develop more intelligent algorithem for batching
dispatch.
Baolin has tested this patch and found that MMC performance is improved[3].
[1] https://lore.kernel.org/linux-block/20200512075501.GF1531898@T590/#r
[2] https://lore.kernel.org/linux-block/fe6bd8b9-6ed9-b225-f80c-314746133722@grimberg.me/
[3] https://lore.kernel.org/linux-block/CADBw62o9eTQDJ9RvNgEqSpXmg6Xcq=2TxH0Hfxhp29uF2W=TXA@mail.gmail.com/
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pass obtained budget count to blk_mq_dispatch_rq_list(), and prepare
for supporting fully batching submission.
With the obtained budget count, it is easier to put extra budgets
in case of .queue_rq failure.
Meantime remove the old 'got_budget' parameter.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When BLK_STS_RESOURCE or BLK_STS_DEV_RESOURCE is returned from
.queue_rq, the 'list' variable always holds this rq which isn't
queued to LLD successfully.
So blk_mq_dispatch_rq_list() always returns false from the branch
of '!list_empty(list)'.
No functional change.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Move code for getting driver tag and budget into one helper, so
blk_mq_dispatch_rq_list gets a bit simplified, and easier to read.
Meantime move updating of 'no_tag' and 'no_budget_available' into
the branch for handling partial dispatch because that is exactly
consumer of the two local variables.
Also rename the parameter of 'got_budget' as 'ask_budget'.
No functional change.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
All requests in the 'list' of blk_mq_dispatch_rq_list belong to same
hctx, so it is better to pass hctx instead of request queue, because
blk-mq's dispatch target is hctx instead of request queue.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
blk-mq budget is abstract from scsi's device queue depth, and it is
always per-request-queue instead of hctx.
It can be quite absurd to get a budget from one hctx, then dequeue a
request from scheduler queue, and this request may not belong to this
hctx, at least for bfq and deadline.
So fix the mess and always pass request queue to get/put budget
callback.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Baolin Wang <baolin.wang7@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Choo! Choo! All aboard the Split Lock Express, with direct service to
Wreckage!
Skip split_lock_verify_msr() if the CPU isn't whitelisted as a possible
SLD-enabled CPU model to avoid writing MSR_TEST_CTRL. MSR_TEST_CTRL
exists, and is writable, on many generations of CPUs. Writing the MSR,
even with '0', can result in bizarre, undocumented behavior.
This fixes a crash on Haswell when resuming from suspend with a live KVM
guest. Because APs use the standard SMP boot flow for resume, they will
go through split_lock_init() and the subsequent RDMSR/WRMSR sequence,
which runs even when sld_state==sld_off to ensure SLD is disabled. On
Haswell (at least, my Haswell), writing MSR_TEST_CTRL with '0' will
succeed and _may_ take the SMT _sibling_ out of VMX root mode.
When KVM has an active guest, KVM performs VMXON as part of CPU onlining
(see kvm_starting_cpu()). Because SMP boot is serialized, the resulting
flow is effectively:
on_each_ap_cpu() {
WRMSR(MSR_TEST_CTRL, 0)
VMXON
}
As a result, the WRMSR can disable VMX on a different CPU that has
already done VMXON. This ultimately results in a #UD on VMPTRLD when
KVM regains control and attempt run its vCPUs.
The above voodoo was confirmed by reworking KVM's VMXON flow to write
MSR_TEST_CTRL prior to VMXON, and to serialize the sequence as above.
Further verification of the insanity was done by redoing VMXON on all
APs after the initial WRMSR->VMXON sequence. The additional VMXON,
which should VM-Fail, occasionally succeeded, and also eliminated the
unexpected #UD on VMPTRLD.
The damage done by writing MSR_TEST_CTRL doesn't appear to be limited
to VMX, e.g. after suspend with an active KVM guest, subsequent reboots
almost always hang (even when fudging VMXON), a #UD on a random Jcc was
observed, suspend/resume stability is qualitatively poor, and so on and
so forth.
kernel BUG at arch/x86/kvm/x86.c:386!
CPU: 1 PID: 2592 Comm: CPU 6/KVM Tainted: G D
Hardware name: ASUS Q87M-E/Q87M-E, BIOS 1102 03/03/2014
RIP: 0010:kvm_spurious_fault+0xf/0x20
Call Trace:
vmx_vcpu_load_vmcs+0x1fb/0x2b0
vmx_vcpu_load+0x3e/0x160
kvm_arch_vcpu_load+0x48/0x260
finish_task_switch+0x140/0x260
__schedule+0x460/0x720
_cond_resched+0x2d/0x40
kvm_arch_vcpu_ioctl_run+0x82e/0x1ca0
kvm_vcpu_ioctl+0x363/0x5c0
ksys_ioctl+0x88/0xa0
__x64_sys_ioctl+0x16/0x20
do_syscall_64+0x4c/0x170
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: dbaba47085b0c ("x86/split_lock: Rework the initialization flow of split lock detection")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200605192605.7439-1-sean.j.christopherson@intel.com
In flush_delete_work, instead of flushing each individual pending
delayed work item, cancel and re-queue them for immediate execution.
The waiting isn't needed here because we're already waiting for all
queued work items to complete in gfs2_flush_delete_work. This makes the
code more efficient, but more importantly, it avoids sleeping during a
rhashtable walk, inside rcu_read_lock().
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Log flush operations (gfs2_log_flush()) can target a specific transaction.
But if the function encounters errors (e.g. io errors) and withdraws,
the transaction was only freed it if was queued to one of the ail lists.
If the withdraw occurred before the transaction was queued to the ail1
list, function ail_drain never freed it. The result was:
BUG gfs2_trans: Objects remaining in gfs2_trans on __kmem_cache_shutdown()
This patch makes log_flush() add the targeted transaction to the ail1
list so that function ail_drain() will find and free it properly.
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Callers expect gfs2_inode_lookup to return an inode pointer or ERR_PTR(error).
Commit b66648ad6dcf caused it to return NULL instead of ERR_PTR(-ESTALE) in
some cases. Fix that.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: b66648ad6dcf ("gfs2: Move inode generation number check into gfs2_inode_lookup")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
- Fix atomicity of affinity update in the GIC driver
- Don't sleep in atomic when waiting for a GICv4.1 RD to respond
- Fix a couple of typos in user-visible messages
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Merge tag 'irqchip-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier:
- Fix atomicity of affinity update in the GIC driver
- Don't sleep in atomic when waiting for a GICv4.1 RD to respond
- Fix a couple of typos in user-visible messages
Fix the following sparse warning:
arch/arm64/xen/../../arm/xen/enlighten.c:244: warning: macro
"GRANT_TABLE_PHYSADDR" is not used [-Wunused-macros]
It is an isolated macro, and should be removed when its last user
was deleted in the following commit 3cf4095d7446 ("arm/xen: Use
xen_xlate_map_ballooned_pages to setup grant table")
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
It's better to use /bin/sh instead of /bin/bash in order to run the tests
in the BusyBox shell.
Fixes: 6ea3dfe1e073 ("selftests: add TPM 2.0 tests")
Cc: stable@vger.kernel.org
Cc: linux-integrity@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The reverted commit illegitly uses tpm2-tools. External dependencies are
absolutely forbidden from these tests. There is also the problem that
clearing is not necessarily wanted behavior if the test/target computer is
not used only solely for testing.
Fixes: a9920d3bad40 ("tpm: selftest: cleanup after unseal with wrong auth/policy test")
Cc: Tadeusz Struk <tadeusz.struk@intel.com>
Cc: stable@vger.kernel.org
Cc: linux-integrity@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Make blk_ksm_destroy() use the kvfree_sensitive() function (which was
introduced in v5.8-rc1) instead of open-coding it.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Even if that's only a warning, not including asm/cacheflush.h
leads to svc_flush_bvec() being empty allthough powerpc defines
ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE.
CC net/sunrpc/svcsock.o
net/sunrpc/svcsock.c:227:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined [-Wundef]
#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
^
Include linux/highmem.h so that asm/cacheflush.h will be included.
Reported-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: ca07eda33e01 ("SUNRPC: Refactor svc_recvfrom()")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
I don't understand this code well, but I'm seeing a warning about a
still-referenced inode on unmount, and every other similar filesystem
does a dput() here.
Fixes: e8a79fb14f6b ("nfsd: add nfsd/clients directory")
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
We don't drop the reference on the nfsdfs filesystem with
mntput(nn->nfsd_mnt) until nfsd_exit_net(), but that won't be called
until the nfsd module's unloaded, and we can't unload the module as long
as there's a reference on nfsdfs. So this prevents module unloading.
Fixes: 2c830dd7209b ("nfsd: persist nfsd filesystem across mounts")
Reported-and-Tested-by: Luo Xiaogang <lxgrxd@163.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
A batch of fixes for the Freescale DSPI driver fixing some serious
issues with removal of active devices and one resume case, plus a few
new PCI IDs for Intel platforms.
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Merge tag 'spi-fix-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A batch of fixes for the Freescale DSPI driver fixing some serious
issues with removal of active devices and one resume case, plus a few
new PCI IDs for Intel platforms"
* tag 'spi-fix-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: pxa2xx: Add support for Intel Tiger Lake PCH-H
spi: spi-fsl-dspi: Initialize completion before possible interrupt
spi: spi-fsl-dspi: Fix external abort on interrupt in resume or exit paths
spi: spi-fsl-dspi: Fix lockup if device is shutdown during SPI transfer
spi: spi-fsl-dspi: Fix lockup if device is removed during SPI transfer
- Fix wrong frequency converted from power for the cpufreq cooling
device (Finley Xiao)
- Fix compilation warnings by making functions static in the tsens
driver (Amit Kucheria)
- Fix return value of sprd_thm_probe for the Spreadtrum driver
(Tiezhu Yang)
- Fix bank number settings on the Mediatek mt8183 (Michael Kao)
- Fix missing of_node_put() at probe time i.MX (Anson Huang)
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Merge tag 'thermal-v5.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal fixes from Daniel Lezcano:
- Fix undefined temperature if negative on the rcar_gen3 (Dien Pham)
- Fix wrong frequency converted from power for the cpufreq cooling
device (Finley Xiao)
- Fix compilation warnings by making functions static in the tsens
driver (Amit Kucheria)
- Fix return value of sprd_thm_probe for the Spreadtrum driver
(Tiezhu Yang)
- Fix bank number settings on the Mediatek mt8183 (Michael Kao)
- Fix missing of_node_put() at probe time i.MX (Anson Huang)
* tag 'thermal-v5.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
thermal/drivers/rcar_gen3: Fix undefined temperature if negative
thermal/drivers/cpufreq_cooling: Fix wrong frequency converted from power
thermal/drivers/tsens: Fix compilation warnings by making functions static
thermal/drivers/sprd: Fix return value of sprd_thm_probe()
thermal/drivers/mediatek: Fix bank number settings on mt8183
thermal/drivers: imx: Fix missing of_node_put() at probe time
Pull crypto fixes from Herbert Xu:
"This fixes two race conditions, one in padata and one in af_alg"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
padata: upgrade smp_mb__after_atomic to smp_mb in padata_do_serial
crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock()
This reverts commit e9c15badbb7b ("fs: Do not check if there is a
fsnotify watcher on pseudo inodes"). The commit intended to eliminate
fsnotify-related overhead for pseudo inodes but it is broken in
concept. inotify can receive events of pipe files under /proc/X/fd and
chromium relies on close and open events for sandboxing. Maxim Levitsky
reported the following
Chromium starts as a white rectangle, shows few white rectangles that
resemble its notifications and then crashes.
The stdout output from chromium:
[mlevitsk@starship ~]$chromium-freeworld
mesa: for the --simplifycfg-sink-common option: may only occur zero or one times!
mesa: for the --global-isel-abort option: may only occur zero or one times!
[3379:3379:0628/135151.440930:ERROR:browser_switcher_service.cc(238)] XXX Init()
../../sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc:**CRASHING**:seccomp-bpf failure in syscall 0072
Received signal 11 SEGV_MAPERR 0000004a9048
Crashes are not universal but even if chromium does not crash, it certainly
does not work properly. While filtering just modify and access might be
safe, the benefit is not worth the risk hence the revert.
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Fixes: e9c15badbb7b ("fs: Do not check if there is a fsnotify watcher on pseudo inodes")
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Just check for a non-NULL elevator directly to make the code more clear.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
It is natural to release driver tag when this request is completed by
LLD or device since its purpose is for LLD use.
One big benefit is that the released tag can be re-used quicker since
bio_endio() may take too long.
Meantime we don't need to release driver tag for flush request.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
bios must have a valid block group by the time they are submitted.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
blkcg_bio_issue_check is a giant inline function that does three entirely
different things. Factor out the blk-cgroup related bio initalization
into a new helper, and the open code the sequence in the only caller,
relying on the fact that all the actual functionality is stubbed out for
non-cgroup builds.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The only thing in blkcg_bio_issue_check that needs to be under
rcu_read_lock is blk_throtl_bio, so move the locking there.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
cgroup_rstat_updated is only used by core block code, no need to
export it.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This is purely a sanity check for grave programming errors. Remove it
to simplify further work in this area.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
By moving the initial blkg lookup into blkg_tryget_closest we get
a nicely self contained routines that does all the RCU locking.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
