Since we now have a single io_wqe per io_wq instead of per-node, and in
preparation to its removal, move the accounting into the parent
structure.
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/20230322011628.23359-2-krisman@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
On at least parisc, we have strict requirements on how we virtually map
an address that is shared between the application and the kernel. On
these platforms, IOU_PBUF_RING_MMAP should be used when setting up a
shared ring buffer for provided buffers. If the application is mapping
these pages and asking the kernel to pin+map them as well, then we have
no control over what virtual address we get in the kernel.
For that case, do a sanity check if SHM_COLOUR is defined, and disallow
the mapping request. The application must fall back to using
IOU_PBUF_RING_MMAP for this case, and liburing will do that transparently
with the set of helpers that it has.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add support for KASAN in the alloc_caches (apoll and netmsg_cache).
Thus, if something touches the unused caches, it will raise a KASAN
warning/exception.
It poisons the object when the object is put to the cache, and unpoisons
it when the object is gotten or freed.
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/20230223164353.2839177-2-leitao@debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Having cache entries linked using the hlist format brings no benefit, and
also requires an unnecessary extra pointer address per cache entry.
Use the internal io_wq_work_node single-linked list for the internal
alloc caches (async_msghdr and async_poll)
This is required to be able to use KASAN on cache entries, since we do
not need to touch unused (and poisoned) cache entries when adding more
entries to the list.
Suggested-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20230223164353.2839177-2-leitao@debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Right now io_wq allocates one io_wqe per NUMA node. As io_wq is now
bound to a task, the task basically uses only the NUMA local io_wqe, and
almost never changes NUMA nodes, thus, the other wqes are mostly
unused.
Allocate just one io_wqe embedded into io_wq, and uses all possible cpus
(cpu_possible_mask) in the io_wqe->cpumask.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20230310201107.4020580-1-leitao@debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The ring mapped provided buffer rings rely on the application allocating
the memory for the ring, and then the kernel will map it. This generally
works fine, but runs into issues on some architectures where we need
to be able to ensure that the kernel and application virtual address for
the ring play nicely together. This at least impacts architectures that
set SHM_COLOUR, but potentially also anyone setting SHMLBA.
To use this variant of ring provided buffers, the application need not
allocate any memory for the ring. Instead the kernel will do so, and
the allocation must subsequently call mmap(2) on the ring with the
offset set to:
IORING_OFF_PBUF_RING | (bgid << IORING_OFF_PBUF_SHIFT)
to get a virtual address for the buffer ring. Normally the application
would allocate a suitable piece of memory (and correctly aligned) and
simply pass that in via io_uring_buf_reg.ring_addr and the kernel would
map it.
Outside of the setup differences, the kernel allocate + user mapped
provided buffer ring works exactly the same.
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In preparation for allowing flags to be set for registration, rename
the padding and use it for that.
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Rather than rely on checking buffer_list->buf_pages or ->buf_nr_pages,
add a separate member that tracks if this is a ring mapped provided
buffer list or not.
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In preparation for allowing the kernel to allocate the provided buffer
rings and have the application mmap it instead, abstract out the
current method of pinning and mapping the user allocated ring.
No functional changes intended in this patch.
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Some architectures have memory cache aliasing requirements (e.g. parisc)
if memory is shared between userspace and kernel. This patch fixes the
kernel to return an aliased address when asked by userspace via mmap().
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
io_uring hashes writes to a given file/inode so that it can serialize
them. This is useful if the file system needs exclusive access to the
file to perform the write, as otherwise we end up with a ton of io-wq
threads trying to lock the inode at the same time. This can cause
excessive system time.
But if the file system has flagged that it supports parallel O_DIRECT
writes, then there's no need to serialize the writes. Check for that
through FMODE_DIO_PARALLEL_WRITE and don't hash it if we don't need to.
In a basic test of 8 threads writing to a file on XFS on a gen2 Optane,
with each thread writing in 4k chunks, it improves performance from
~1350K IOPS (or ~5290MiB/sec) to ~1410K IOPS (or ~5500MiB/sec).
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Some filesystems support multiple threads writing to the same file with
O_DIRECT without requiring exclusive access to it. io_uring can use this
hint to avoid serializing dio writes to this inode, instead allowing them
to run in parallel.
XFS and ext4 both fall into this category, so set the flag for both of
them.
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'for-6.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- scan block devices in non-exclusive mode to avoid temporary mkfs
failures
- fix race between quota disable and quota assign ioctls
- fix deadlock when aborting transaction during relocation with scrub
- ignore fiemap path cache when there are multiple paths for a node
* tag 'for-6.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: ignore fiemap path cache when there are multiple paths for a node
btrfs: fix deadlock when aborting transaction during relocation with scrub
btrfs: scan device in non-exclusive mode
btrfs: fix race between quota disable and quota assign ioctls
This reverts commit a837e5161c, which broke probing of the venus
driver, at least on the SC7180 SoC HP X2 Chromebook:
qcom-venus aa00000.video-codec: Adding to iommu group 11
qcom-venus aa00000.video-codec: non legacy binding
qcom-venus aa00000.video-codec: failed to reset venus core
qcom-venus: probe of aa00000.video-codec failed with error -110
Matthias Kaehlcke also reported that the same change caused a regression
in SC7180 and sc7280, that prevents AOSS from entering sleep mode during
system suspend. So let's revert this commit for now to fix both issues.
Fixes: a837e5161c ("venus: firmware: Correct non-pix start and end addresses")
Reported-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here are 3 small changes for 6.3-rc5 semi-related to driver core stuff:
- documentation update where we move the security_bugs file to a more
relevant location.
- mdt/spi-nor debugfs memory leak fix that's been floating around for
a long time and acked by the maintainer
- cacheinfo bugfix for a regression in 6.3-rc1
All have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are three small changes for 6.3-rc5 semi-related to driver core
stuff:
- documentation update where we move the security_bugs file to a more
relevant location.
- mdt/spi-nor debugfs memory leak fix that's been floating around for
a long time and acked by the maintainer
- cacheinfo bugfix for a regression in 6.3-rc1
All have been in linux-next with no reported problems"
* tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
cacheinfo: Fix LLC is not exported through sysfs
Documentation/security-bugs: move from admin-guide/ to process/
mtd: spi-nor: fix memory leak when using debugfs_lookup()
- Fix a false positive warning in __pte_needs_flush() (with DEBUG_VM=y).
- Fix oops when a PF_IO_WORKER thread tries to core dump.
- Don't try to reconfigure VAS when it's disabled.
Thanks to: Benjamin Gray, Haren Myneni, Jens Axboe, Nathan Lynch, Russell Currey.
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Merge tag 'powerpc-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix a false positive warning in __pte_needs_flush() (with DEBUG_VM=y)
- Fix oops when a PF_IO_WORKER thread tries to core dump
- Don't try to reconfigure VAS when it's disabled
Thanks to Benjamin Gray, Haren Myneni, Jens Axboe, Nathan Lynch, and
Russell Currey.
* tag 'powerpc-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries/vas: Ignore VAS update for DLPAR if copy/paste is not enabled
powerpc: Don't try to copy PPR for task with NULL pt_regs
powerpc/64s: Fix __pte_needs_flush() false positive warning
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Merge tag '6.3-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs client fixes from Steve French:
"Four cifs/smb3 client (reconnect and DFS related) fixes, including two
for stable:
- DFS oops fix
- DFS reconnect recursion fix
- An SMB1 parallel reconnect fix
- Trivial dead code removal in smb2_reconnect"
* tag '6.3-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: get rid of dead check in smb2_reconnect()
cifs: prevent infinite recursion in CIFSGetDFSRefer()
cifs: avoid races in parallel reconnects in smb1
cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL
- fixes to ALPS and Focaltech PS/2 drivers dealing with the breakage of
switching to -funsigned-char
- quirks to i8042 to better handle Lifebook A574/H and TUXEDO devices
- a quirk to Goodix touchscreen driver to handle Yoga Book X90F
- a fix for incorrectly merged patch to xpad game controller driver
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Merge tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- fixes to ALPS and Focaltech PS/2 drivers dealing with the breakage of
switching to -funsigned-char
- quirks to i8042 to better handle Lifebook A574/H and TUXEDO devices
- a quirk to Goodix touchscreen driver to handle Yoga Book X90F
- a fix for incorrectly merged patch to xpad game controller driver
* tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add TUXEDO devices to i8042 quirk tables for partial fix
Input: alps - fix compatibility with -funsigned-char
Input: focaltech - use explicitly signed char type
Input: xpad - fix incorrectly applied patch for MAP_PROFILE_BUTTON
Input: goodix - add Lenovo Yoga Book X90F to nine_bytes_report DMI table
Input: i8042 - add quirk for Fujitsu Lifebook A574/H
- Fix up the Kconfig options for MediaTek MT7981.
- Fix the irq domain name in the AT91-PIO4 driver.
- Fix some alternative muxing modes in the Ocelot
driver.
- Allocate the GPIO numbers dynamically in the STM32
driver.
- Disable and mask interrupts on resume in the AMD
driver.
- Fix a typo in the Qualcomm SM8550 pin control
device tree bindings.
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Merge tag 'pinctrl-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some pin control fixes for the v6.3 series.
The most notable and urgent one is probably the AMD fix which affects
AMD laptops, found by the Chromium people.
Summary:
- Fix up the Kconfig options for MediaTek MT7981
- Fix the irq domain name in the AT91-PIO4 driver
- Fix some alternative muxing modes in the Ocelot driver
- Allocate the GPIO numbers dynamically in the STM32 driver
- Disable and mask interrupts on resume in the AMD driver
- Fix a typo in the Qualcomm SM8550 pin control device tree bindings"
* tag 'pinctrl-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
dt-bindings: pinctrl: qcom,sm8550-lpass-lpi: allow input-enabled and bias-bus-hold
pinctrl: amd: Disable and mask interrupts on resume
pinctrl: stm32: use dynamic allocation of GPIO base
pinctrl: ocelot: Fix alt mode for ocelot
pinctrl: at91-pio4: fix domain name assignment
pinctrl: mediatek: fix naming inconsistency
pinctrl: mediatek: add missing options to PINCTRL_MT7981
- Fix linux-headers debian package
- Fix a merge_config.sh error due to a misspelled variable
- Fix modversion for 32-bit build machines
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Merge tag 'kbuild-fixes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Fix linux-headers debian package
- Fix a merge_config.sh error due to a misspelled variable
- Fix modversion for 32-bit build machines
* tag 'kbuild-fixes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
modpost: Fix processing of CRCs on 32-bit build machines
scripts: merge_config: Fix typo in variable name.
kbuild: deb-pkg: set version for linux-headers paths
Including:
- Maintainer update for S390 IOMMU driver
- A fix for the set_platform_dma_ops() call-back in the
Exynos IOMMU driver
- Intel VT-d fixes from Lu Baolu:
- Fix a lockdep splat
- Fix a supplement of the specification
- Fix a warning in perfmon code
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Merge tag 'iommu-fixes-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- Maintainer update for S390 IOMMU driver
- A fix for the set_platform_dma_ops() call-back in the Exynos
IOMMU driver
- Intel VT-d fixes from Lu Baolu:
- Fix a lockdep splat
- Fix a supplement of the specification
- Fix a warning in perfmon code
* tag 'iommu-fixes-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Fix an IOMMU perfmon warning when CPU hotplug
iommu/vt-d: Allow zero SAGAW if second-stage not supported
iommu/vt-d: Remove unnecessary locking in intel_irq_remapping_alloc()
iommu/exynos: Fix set_platform_dma_ops() callback
MAINTAINERS: Update s390-iommu driver maintainer information
The runtime suspend/resume functions are only referenced from the
dev_pm_ops, but they use the old SET_RUNTIME_PM_OPS() helper that
requires a __maybe_unused annotation to avoid a warning:
drivers/media/i2c/imx290.c:1082:12: error: unused function 'imx290_runtime_resume' [-Werror,-Wunused-function]
static int imx290_runtime_resume(struct device *dev)
^
drivers/media/i2c/imx290.c:1090:12: error: unused function 'imx290_runtime_suspend' [-Werror,-Wunused-function]
static int imx290_runtime_suspend(struct device *dev)
^
Convert this to the new RUNTIME_PM_OPS() helper that so this is not
required. To improve this further, also use the pm_ptr() helper that
lets the dev_pm_ops get dropped entirely when CONFIG_PM is disabled.
A related mistake happened in the of_match_ptr() macro here, which like
SET_RUNTIME_PM_OPS() requires the match table to be marked as
__maybe_unused, though I could not reproduce building this without
CONFIG_OF. Remove the of_match_ptr() here as there is no point in
dropping the match table in configurations without CONFIG_OF.
Fixes: 02852c01f6 ("media: i2c: imx290: Initialize runtime PM before subdev")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bugfixes:
* Fix shutdown of NFS TCP client sockets
* Fix hangs when recovering open state after a server reboot
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Merge tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- Fix shutdown of NFS TCP client sockets
- Fix hangs when recovering open state after a server reboot
* tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: fix shutdown of NFS TCP client socket
NFSv4: Fix hangs when recovering open state after a server reboot
Highlights
- Fix a regression in ideapad-laptop which caused the touchpad
to stop working after a suspend/resume on some models
- 1 other small fix and 3 hw-id additions
The following is an automated git shortlog grouped by driver:
asus-nb-wmi:
- Add quirk_asus_tablet_mode to other ROG Flow X13 models
gigabyte-wmi:
- add support for X570S AORUS ELITE
- add support for B650 AORUS ELITE AX
ideapad-laptop:
- Stop sending KEY_TOUCHPAD_TOGGLE
platform/x86/intel/pmc:
- Alder Lake PCH slp_s0_residency fix
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Merge tag 'platform-drivers-x86-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- Fix a regression in ideapad-laptop which caused the touchpad to stop
working after a suspend/resume on some models
- One other small fix and three hw-id additions
* tag 'platform-drivers-x86-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: ideapad-laptop: Stop sending KEY_TOUCHPAD_TOGGLE
platform/x86: asus-nb-wmi: Add quirk_asus_tablet_mode to other ROG Flow X13 models
platform/x86: gigabyte-wmi: add support for X570S AORUS ELITE
platform/x86: gigabyte-wmi: add support for B650 AORUS ELITE AX
platform/x86/intel/pmc: Alder Lake PCH slp_s0_residency fix
This fixes a rarely triggered issue where we would treat probe
deferral for clocks as a fatal error in the fixed regulator,
causing it to fail to retry when it should.
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Merge tag 'regulator-fix-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"Deferred probe fix for v6.3.
This fixes a rarely triggered issue where we would treat probe
deferral for clocks as a fatal error in the fixed regulator, causing
it to fail to retry when it should"
* tag 'regulator-fix-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: Handle deferred clk
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Merge tag 'block-6.3-2023-03-30' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Christoph:
- Mark Lexar NM760 as IGNORE_DEV_SUBNQN (Juraj Pecigos)
- Fix a possible UAF when failing to allocate an TCP io queue (Sagi
Grimberg)
- MD pull request via Song:
- Fix a null pointer deference in 6.3-rc (Yu Kuai)
- uevent partition fix (Alyssa)
* tag 'block-6.3-2023-03-30' of git://git.kernel.dk/linux:
nvme-tcp: fix a possible UAF when failing to allocate an io queue
md: fix regression for null-ptr-deference in __md_stop()
nvme-pci: mark Lexar NM760 as IGNORE_DEV_SUBNQN
loop: LOOP_CONFIGURE: send uevents for partitions
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Merge tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Fix a regression with the poll retry, introduced in this merge window
(me)
- Fix a regression with the alloc cache not decrementing the member
count on removal. Also a regression from this merge window (Pavel)
- Fix race around rsrc node grabbing (Pavel)
* tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux:
io_uring: fix poll/netmsg alloc caches
io_uring/rsrc: fix rogue rsrc node grabbing
io_uring/poll: clear single/double poll flags on poll arming
Commit 5829f8a897 ("platform/x86: ideapad-laptop: Send
KEY_TOUCHPAD_TOGGLE on some models") made ideapad-laptop send
KEY_TOUCHPAD_TOGGLE when we receive an ACPI notify with VPC event bit 5 set
and the touchpad-state has not been changed by the EC itself already.
This was done under the assumption that this would be good to do to make
the touchpad-toggle hotkey work on newer models where the EC does not
toggle the touchpad on/off itself (because it is not routed through
the PS/2 controller, but uses I2C).
But it turns out that at least some models, e.g. the Yoga 7-15ITL5 the EC
triggers an ACPI notify with VPC event bit 5 set on resume, which would
now cause a spurious KEY_TOUCHPAD_TOGGLE on resume to which the desktop
environment responds by disabling the touchpad in software, breaking
the touchpad (until manually re-enabled) on resume.
It was never confirmed that sending KEY_TOUCHPAD_TOGGLE actually improves
things on new models and at least some new models like the Yoga 7-15ITL5
don't have a touchpad on/off toggle hotkey at all, while still sending
ACPI notify events with VPC event bit 5 set.
So it seems best to revert the change to send KEY_TOUCHPAD_TOGGLE when
receiving an ACPI notify events with VPC event bit 5 and the touchpad
state as reported by the EC has not changed.
Note this is not a full revert the code to cache the last EC touchpad
state is kept to avoid sending spurious KEY_TOUCHPAD_ON / _OFF events
on resume.
Fixes: 5829f8a897 ("platform/x86: ideapad-laptop: Send KEY_TOUCHPAD_TOGGLE on some models")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217234
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230330194644.64628-1-hdegoede@redhat.com
Make quirk_asus_tablet_mode apply on other ROG Flow X13 devices,
which only affects the GV301Q model before.
Signed-off-by: weiliang1503 <weiliang1503@gmail.com>
Link: https://lore.kernel.org/r/20230330114943.15057-1-weiliang1503@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
- Drop two lockdep assertions producing false positive warnings from
the sysfs-related thermal core code (Rafael Wysocki).
- Fix handling of two recently added module parameters in the Intel
powerclamp thermal driver (David Arcari).
- Fix one more deadlock in the int340x thermal driver (Srinivas
Pandruvada).
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Merge tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These remove two recently added excessive lockdep assertions from the
sysfs-related thermal code and fix two issues in Intel thermal
drivers.
Specifics:
- Drop two lockdep assertions producing false positive warnings from
the sysfs-related thermal core code (Rafael Wysocki)
- Fix handling of two recently added module parameters in the Intel
powerclamp thermal driver (David Arcari)
- Fix one more deadlock in the int340x thermal driver (Srinivas
Pandruvada)"
* tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: powerclamp: Fix cpumask and max_idle module parameters
thermal: intel: int340x: processor_thermal: Fix additional deadlock
thermal: core: Drop excessive lockdep_assert_held() calls
Fix a recent regression related to the handling of ACPI notifications
that made it more likely for ACPI driver callbacks to be invoked in an
unexpected order and NULL pointers can be dereferenced as a result or
similar.
The fix is to modify the global ACPI notification handler so it does not
invoke driver callbacks at all and allow the device-level notification
handlers to receive "system" notifications (for the drivers that want to
receive them).
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Merge tag 'acpi-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix a recent regression related to the handling of ACPI notifications
that made it more likely for ACPI driver callbacks to be invoked in an
unexpected order and NULL pointers can be dereferenced as a result or
similar.
The fix is to modify the global ACPI notification handler so it does
not invoke driver callbacks at all and allow the device-level
notification handlers to receive "system" notifications (for the
drivers that want to receive them)"
* tag 'acpi-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: bus: Rework system-level device notification handling
* A fix for FPU probing in XIP kernels.
* Always enable the alternative framework for non-XIP kernels.
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Merge tag 'riscv-for-linus-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix for FPU probing in XIP kernels
- Always enable the alternative framework for non-XIP kernels
* tag 'riscv-for-linus-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: always select RISCV_ALTERNATIVE for non-xip kernels
RISC-V: add non-alternative fallback for riscv_has_extension_[un]likely()
A warning can be triggered when hotplug CPU 0.
$ echo 0 > /sys/devices/system/cpu/cpu0/online
------------[ cut here ]------------
Voluntary context switch within RCU read-side critical section!
WARNING: CPU: 0 PID: 19 at kernel/rcu/tree_plugin.h:318
rcu_note_context_switch+0x4f4/0x580
RIP: 0010:rcu_note_context_switch+0x4f4/0x580
Call Trace:
<TASK>
? perf_event_update_userpage+0x104/0x150
__schedule+0x8d/0x960
? perf_event_set_state.part.82+0x11/0x50
schedule+0x44/0xb0
schedule_timeout+0x226/0x310
? __perf_event_disable+0x64/0x1a0
? _raw_spin_unlock+0x14/0x30
wait_for_completion+0x94/0x130
__wait_rcu_gp+0x108/0x130
synchronize_rcu+0x67/0x70
? invoke_rcu_core+0xb0/0xb0
? __bpf_trace_rcu_stall_warning+0x10/0x10
perf_pmu_migrate_context+0x121/0x370
iommu_pmu_cpu_offline+0x6a/0xa0
? iommu_pmu_del+0x1e0/0x1e0
cpuhp_invoke_callback+0x129/0x510
cpuhp_thread_fun+0x94/0x150
smpboot_thread_fn+0x183/0x220
? sort_range+0x20/0x20
kthread+0xe6/0x110
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x1f/0x30
</TASK>
---[ end trace 0000000000000000 ]---
The synchronize_rcu() will be invoked in the perf_pmu_migrate_context(),
when migrating a PMU to a new CPU. However, the current for_each_iommu()
is within RCU read-side critical section.
Two methods were considered to fix the issue.
- Use the dmar_global_lock to replace the RCU read lock when going
through the drhd list. But it triggers a lockdep warning.
- Use the cpuhp_setup_state_multi() to set up a dedicated state for each
IOMMU PMU. The lock can be avoided.
The latter method is implemented in this patch. Since each IOMMU PMU has
a dedicated state, add cpuhp_node and cpu in struct iommu_pmu to track
the state. The state can be dynamically allocated now. Remove the
CPUHP_AP_PERF_X86_IOMMU_PERF_ONLINE.
Fixes: 46284c6ceb ("iommu/vt-d: Support cpumask for IOMMU perfmon")
Reported-by: Ammy Yi <ammy.yi@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20230328182028.1366416-1-kan.liang@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230329134721.469447-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The VT-d spec states (in section 11.4.2) that hardware implementations
reporting second-stage translation support (SSTS) field as Clear also
report the SAGAW field as 0. Fix an inappropriate check in alloc_iommu().
Fixes: 792fb43ce2 ("iommu/vt-d: Enable Intel IOMMU scalable mode by default")
Suggested-by: Raghunathan Srinivasan <raghunathan.srinivasan@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230318024824.124542-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20230329134721.469447-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The global rwsem dmar_global_lock was introduced by commit 3a5670e8ac
("iommu/vt-d: Introduce a rwsem to protect global data structures"). It
is used to protect DMAR related global data from DMAR hotplug operations.
Using dmar_global_lock in intel_irq_remapping_alloc() is unnecessary as
the DMAR global data structures are not touched there. Remove it to avoid
below lockdep warning.
======================================================
WARNING: possible circular locking dependency detected
6.3.0-rc2 #468 Not tainted
------------------------------------------------------
swapper/0/1 is trying to acquire lock:
ff1db4cb40178698 (&domain->mutex){+.+.}-{3:3},
at: __irq_domain_alloc_irqs+0x3b/0xa0
but task is already holding lock:
ffffffffa0c1cdf0 (dmar_global_lock){++++}-{3:3},
at: intel_iommu_init+0x58e/0x880
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (dmar_global_lock){++++}-{3:3}:
lock_acquire+0xd6/0x320
down_read+0x42/0x180
intel_irq_remapping_alloc+0xad/0x750
mp_irqdomain_alloc+0xb8/0x2b0
irq_domain_alloc_irqs_locked+0x12f/0x2d0
__irq_domain_alloc_irqs+0x56/0xa0
alloc_isa_irq_from_domain.isra.7+0xa0/0xe0
mp_map_pin_to_irq+0x1dc/0x330
setup_IO_APIC+0x128/0x210
apic_intr_mode_init+0x67/0x110
x86_late_time_init+0x24/0x40
start_kernel+0x41e/0x7e0
secondary_startup_64_no_verify+0xe0/0xeb
-> #0 (&domain->mutex){+.+.}-{3:3}:
check_prevs_add+0x160/0xef0
__lock_acquire+0x147d/0x1950
lock_acquire+0xd6/0x320
__mutex_lock+0x9c/0xfc0
__irq_domain_alloc_irqs+0x3b/0xa0
dmar_alloc_hwirq+0x9e/0x120
iommu_pmu_register+0x11d/0x200
intel_iommu_init+0x5de/0x880
pci_iommu_init+0x12/0x40
do_one_initcall+0x65/0x350
kernel_init_freeable+0x3ca/0x610
kernel_init+0x1a/0x140
ret_from_fork+0x29/0x50
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(dmar_global_lock);
lock(&domain->mutex);
lock(dmar_global_lock);
lock(&domain->mutex);
*** DEADLOCK ***
Fixes: 9dbb8e3452 ("irqdomain: Switch to per-domain locking")
Reviewed-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Tested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230314051836.23817-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20230329134721.469447-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
- fix for swiotlb deadlock due to wrong alignment checks (GuoRui.Yu,
Petr Tesarik)
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Merge tag 'dma-mapping-6.3-2023-03-31' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
- fix for swiotlb deadlock due to wrong alignment checks (GuoRui.Yu,
Petr Tesarik)
* tag 'dma-mapping-6.3-2023-03-31' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: fix slot alignment checks
swiotlb: use wrap_area_index() instead of open-coding it
swiotlb: fix the deadlock in swiotlb_do_find_slots
The SMB2_IOCTL check in the switch statement will never be true as we
return earlier from smb2_reconnect() if @smb2_command == SMB2_IOCTL.
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
We can't call smb_init() in CIFSGetDFSRefer() as cifs_reconnect_tcon()
may end up calling CIFSGetDFSRefer() again to get new DFS referrals
and thus causing an infinite recursion.
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>
Prevent multiple threads of doing negotiate, session setup and tree
connect by holding @ses->session_mutex in cifs_reconnect_tcon() while
reconnecting session and tcon.
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Four small fixes, three in drivers. The core fix is yet another
attempt to insulate us from UFS devices' weird behaviour for VPD
pages.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four small fixes, three in drivers. The core fix is yet another
attempt to insulate us from UFS devices' weird behaviour for VPD
pages"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: mpt3sas: Don't print sense pool info twice
scsi: core: Improve scsi_vpd_inquiry() checks
scsi: megaraid_sas: Fix crash after a double completion
scsi: megaraid_sas: Fix fw_crash_buffer_show()
- mark Lexar NM760 as IGNORE_DEV_SUBNQN (Juraj Pecigos)
- fix a possible UAF when failing to allocate an TCP io queue
(Sagi Grimberg)
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Merge tag 'nvme-6.3-2023-03-31' of git://git.infradead.org/nvme into block-6.3
Pull NVMe fixes from Christoph:
"nvme fixes for Linux 6.3
- mark Lexar NM760 as IGNORE_DEV_SUBNQN (Juraj Pecigos)
- fix a possible UAF when failing to allocate an TCP io queue
(Sagi Grimberg)"
* tag 'nvme-6.3-2023-03-31' of git://git.infradead.org/nvme:
nvme-tcp: fix a possible UAF when failing to allocate an io queue
nvme-pci: mark Lexar NM760 as IGNORE_DEV_SUBNQN
When compiled with CONFIG_CIFS_DFS_UPCALL disabled, cifs_dfs_d_automount
is NULL. cifs.ko logic for mapping CIFS_FATTR_DFS_REFERRAL attributes to
S_AUTOMOUNT and corresponding dentry flags is retained regardless of
CONFIG_CIFS_DFS_UPCALL, leading to a NULL pointer dereference in
VFS follow_automount() when traversing a DFS referral link:
BUG: kernel NULL pointer dereference, address: 0000000000000000
...
Call Trace:
<TASK>
__traverse_mounts+0xb5/0x220
? cifs_revalidate_mapping+0x65/0xc0 [cifs]
step_into+0x195/0x610
? lookup_fast+0xe2/0xf0
path_lookupat+0x64/0x140
filename_lookup+0xc2/0x140
? __create_object+0x299/0x380
? kmem_cache_alloc+0x119/0x220
? user_path_at_empty+0x31/0x50
user_path_at_empty+0x31/0x50
__x64_sys_chdir+0x2a/0xd0
? exit_to_user_mode_prepare+0xca/0x100
do_syscall_64+0x42/0x90
entry_SYSCALL_64_after_hwframe+0x72/0xdc
This fix adds an inline cifs_dfs_d_automount() {return -EREMOTE} handler
when CONFIG_CIFS_DFS_UPCALL is disabled. An alternative would be to
avoid flagging S_AUTOMOUNT, etc. without CONFIG_CIFS_DFS_UPCALL. This
approach was chosen as it provides more control over the error path.
Signed-off-by: David Disseldorp <ddiss@suse.de>
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Current release - regressions:
- phy: micrel: correct KSZ9131RNX EEE capabilities and advertisement
Current release - new code bugs:
- eth: wangxun: fix vector length of interrupt cause
- vsock/loopback: consistently protect the packet queue with
sk_buff_head.lock
- virtio/vsock: fix header length on skb merging
- wpan: ca8210: fix unsigned mac_len comparison with zero
Previous releases - regressions:
- eth: stmmac: don't reject VLANs when IFF_PROMISC is set
- eth: smsc911x: avoid PHY being resumed when interface is not up
- eth: mtk_eth_soc: fix tx throughput regression with direct 1G links
- eth: bnx2x: use the right build_skb() helper after core rework
- wwan: iosm: fix 7560 modem crash on use on unsupported channel
Previous releases - always broken:
- eth: sfc: don't overwrite offload features at NIC reset
- eth: r8169: fix RTL8168H and RTL8107E rx crc error
- can: j1939: prevent deadlock by moving j1939_sk_errqueue()
- virt: vmxnet3: use GRO callback when UPT is enabled
- virt: xen: don't do grant copy across page boundary
- phy: dp83869: fix default value for tx-/rx-internal-delay
- dsa: ksz8: fix multiple issues with ksz8_fdb_dump
- eth: mvpp2: fix classification/RSS of VLAN and fragmented packets
- eth: mtk_eth_soc: fix flow block refcounting logic
Misc:
- constify fwnode pointers in SFP handling
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from CAN and WPAN.
Still quite a few bugs from this release. This pull is a bit smaller
because major subtrees went into the previous one. Or maybe people
took spring break off?
Current release - regressions:
- phy: micrel: correct KSZ9131RNX EEE capabilities and advertisement
Current release - new code bugs:
- eth: wangxun: fix vector length of interrupt cause
- vsock/loopback: consistently protect the packet queue with
sk_buff_head.lock
- virtio/vsock: fix header length on skb merging
- wpan: ca8210: fix unsigned mac_len comparison with zero
Previous releases - regressions:
- eth: stmmac: don't reject VLANs when IFF_PROMISC is set
- eth: smsc911x: avoid PHY being resumed when interface is not up
- eth: mtk_eth_soc: fix tx throughput regression with direct 1G links
- eth: bnx2x: use the right build_skb() helper after core rework
- wwan: iosm: fix 7560 modem crash on use on unsupported channel
Previous releases - always broken:
- eth: sfc: don't overwrite offload features at NIC reset
- eth: r8169: fix RTL8168H and RTL8107E rx crc error
- can: j1939: prevent deadlock by moving j1939_sk_errqueue()
- virt: vmxnet3: use GRO callback when UPT is enabled
- virt: xen: don't do grant copy across page boundary
- phy: dp83869: fix default value for tx-/rx-internal-delay
- dsa: ksz8: fix multiple issues with ksz8_fdb_dump
- eth: mvpp2: fix classification/RSS of VLAN and fragmented packets
- eth: mtk_eth_soc: fix flow block refcounting logic
Misc:
- constify fwnode pointers in SFP handling"
* tag 'net-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits)
net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow
net: ethernet: mtk_eth_soc: fix L2 offloading with DSA untag offload
net: ethernet: mtk_eth_soc: fix flow block refcounting logic
net: mvneta: fix potential double-frees in mvneta_txq_sw_deinit()
net: dsa: sync unicast and multicast addresses for VLAN filters too
net: dsa: mv88e6xxx: Enable IGMP snooping on user ports only
xen/netback: use same error messages for same errors
test/vsock: new skbuff appending test
virtio/vsock: WARN_ONCE() for invalid state of socket
virtio/vsock: fix header length on skb merging
bnxt_en: Add missing 200G link speed reporting
bnxt_en: Fix typo in PCI id to device description string mapping
bnxt_en: Fix reporting of test result in ethtool selftest
i40e: fix registers dump after run ethtool adapter self test
bnx2x: use the right build_skb() helper
net: ipa: compute DMA pool size properly
net: wwan: iosm: fixes 7560 modem crash
net: ethernet: mtk_eth_soc: fix tx throughput regression with direct 1G links
ice: fix invalid check for empty list in ice_sched_assoc_vsi_to_agg()
ice: add profile conflict check for AVF FDIR
...
(discards, write same and secure erase) and issuing that IO to the
correct underlying devices (and offsets within those devices).
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Merge tag 'for-6.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix two DM core bugs in the code that handles splitting "abnormal" IO
(discards, write same and secure erase) and issuing that IO to the
correct underlying devices (and offsets within those devices).
* tag 'for-6.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix __send_duplicate_bios() to always allow for splitting IO
dm: fix improper splitting for abnormal bios
