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Typo: compation --> compaction
Signed-off-by: Liu Xiang <liu.xiang@zlingsmart.com>
Link: https://lore.kernel.org/r/20210327031710.16151-1-liu.xiang@zlingsmart.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
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Follow comment style mentioned in the Writing kernel-doc document [1].
Following warnings are fixed.
$ scripts/kernel-doc -v -none drivers/vdpa/vdpa.c
drivers/vdpa/vdpa.c:67: info: Scanning doc for __vdpa_alloc_device
drivers/vdpa/vdpa.c:84: warning: No description found for return value of '__vdpa_alloc_device'
drivers/vdpa/vdpa.c:153: info: Scanning doc for _vdpa_register_device
drivers/vdpa/vdpa.c:163: warning: No description found for return value of '_vdpa_register_device'
drivers/vdpa/vdpa.c:172: info: Scanning doc for vdpa_register_device
drivers/vdpa/vdpa.c:180: warning: No description found for return value of 'vdpa_register_device'
drivers/vdpa/vdpa.c:191: info: Scanning doc for _vdpa_unregister_device
drivers/vdpa/vdpa.c:205: info: Scanning doc for vdpa_unregister_device
drivers/vdpa/vdpa.c:217: info: Scanning doc for __vdpa_register_driver
drivers/vdpa/vdpa.c:224: warning: No description found for return value of '__vdpa_register_driver'
drivers/vdpa/vdpa.c:233: info: Scanning doc for vdpa_unregister_driver
drivers/vdpa/vdpa.c:243: info: Scanning doc for vdpa_mgmtdev_register
drivers/vdpa/vdpa.c:250: warning: No description found for return value of 'vdpa_mgmtdev_register'
After the fix:
scripts/kernel-doc -v -none drivers/vdpa/vdpa.c
drivers/vdpa/vdpa.c:67: info: Scanning doc for __vdpa_alloc_device
drivers/vdpa/vdpa.c:153: info: Scanning doc for _vdpa_register_device
drivers/vdpa/vdpa.c:172: info: Scanning doc for vdpa_register_device
drivers/vdpa/vdpa.c:191: info: Scanning doc for _vdpa_unregister_device
drivers/vdpa/vdpa.c:205: info: Scanning doc for vdpa_unregister_device
drivers/vdpa/vdpa.c:217: info: Scanning doc for __vdpa_register_driver
drivers/vdpa/vdpa.c:233: info: Scanning doc for vdpa_unregister_driver
drivers/vdpa/vdpa.c:243: info: Scanning doc for vdpa_mgmtdev_register
[1] https://www.kernel.org/doc/html/latest/doc-guide/kernel-doc.html
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20210406170457.98481-3-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Allow to control vdpa device creation and destruction using the vdpa
management tool.
Examples:
1. List the management devices
$ vdpa mgmtdev show
pci/0000:3b:00.1:
supported_classes net
2. Create vdpa instance
$ vdpa dev add mgmtdev pci/0000:3b:00.1 name vdpa0
3. Show vdpa devices
$ vdpa dev show
vdpa0: type network mgmtdev pci/0000:3b:00.1 vendor_id 5555 max_vqs 16 \
max_vq_size 256
Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210408091320.4600-1-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This patch introduce a vDPA driver for virtio-pci device. It bridges
the virtio-pci control command to the vDPA bus. This will be used for
features prototyping and testing.
Note that get/restore virtqueue state is not supported which needs
extension on the virtio specification.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210223061905.422659-4-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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dpu_crtc_atomic_flush() was directly poking it's attached planes in a
code path that ended up in dpu_plane_atomic_update(), even if the plane
was not involved in the current atomic update. While a bit dubious,
this worked before because plane->state would always point to something
valid. But now using drm_atomic_get_new_plane_state() we could get a
NULL state pointer instead, leading to:
[ 20.873273] Call trace:
[ 20.875740] dpu_plane_atomic_update+0x5c/0xed0
[ 20.880311] dpu_plane_restore+0x40/0x88
[ 20.884266] dpu_crtc_atomic_flush+0xf4/0x208
[ 20.888660] drm_atomic_helper_commit_planes+0x150/0x238
[ 20.894014] msm_atomic_commit_tail+0x1d4/0x7a0
[ 20.898579] commit_tail+0xa4/0x168
[ 20.902102] drm_atomic_helper_commit+0x164/0x178
[ 20.906841] drm_atomic_commit+0x54/0x60
[ 20.910798] drm_atomic_connector_commit_dpms+0x10c/0x118
[ 20.916236] drm_mode_obj_set_property_ioctl+0x1e4/0x440
[ 20.921588] drm_connector_property_set_ioctl+0x60/0x88
[ 20.926852] drm_ioctl_kernel+0xd0/0x120
[ 20.930807] drm_ioctl+0x21c/0x478
[ 20.934235] __arm64_sys_ioctl+0xa8/0xe0
[ 20.938193] invoke_syscall+0x64/0x130
[ 20.941977] el0_svc_common.constprop.3+0x5c/0xe0
[ 20.946716] do_el0_svc+0x80/0xa0
[ 20.950058] el0_svc+0x20/0x30
[ 20.953145] el0_sync_handler+0x88/0xb0
[ 20.957014] el0_sync+0x13c/0x140
The reason for the codepath seems dubious, the atomic suspend/resume
heplers should handle the power-collapse case. If not, the CRTC's
atomic_check() should be adding the planes to the atomic update.
Reported-by: Stephen Boyd <swboyd@chromium.org>
Reported-by: John Stultz <john.stultz@linaro.org>
Fixes: 37418bf14c13 ("drm: Use state helper instead of the plane state pointer")
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430171744.1721408-1-robdclark@gmail.com
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Use scsi_host_busy_iter() to traverse commands instead of hand-crafted
routines walking the command list.
Link: https://lore.kernel.org/r/20210429122517.39659-3-hare@suse.de
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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'exclude_id' is always SCSI_NO_TAG which will never be reached when
traversing the list of tags.
Link: https://lore.kernel.org/r/20210429122517.39659-2-hare@suse.de
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Make sure that the cmd_per_lun value placed in the host template never
exceeds the can_queue value. If the max_queue driver parameter is not
specified then both cmd_per_lun and can_queue are set to CAN_QUEUE.
CAN_QUEUE is a compile time constant and is used to dimension an array to
hold queued requests. If the max_queue driver parameter is given it is must
be less than or equal to CAN_QUEUE and if so, the host template values are
adjusted.
Remove undocumented code that allowed queue_depth to exceed CAN_QUEUE and
cause stack full type errors. There is a documented way to do that with
every_nth and
echo 0x8000 > /sys/bus/pseudo/drivers/scsi_debug/opts
See: https://sg.danny.cz/sg/scsi_debug.html
Tweak some formatting, and add a suggestion to the "trim poll_queues"
warning.
Link: https://lore.kernel.org/r/20210415015031.607153-1-dgilbert@interlog.com
Reported-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: John Garry <john.garry@hauwei.com>
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Improve scalability of DM's device hash by switching to rbtree
- Extend DM ioctl's DM_LIST_DEVICES_CMD handling to include UUID and
allow filtering based on name or UUID prefix.
- Various small fixes for typos, warnings, unused function, or
needlessly exported interfaces.
- Remove needless request_queue NULL pointer checks in DM thin and
cache targets.
- Remove unnecessary loop in DM core's __split_and_process_bio().
- Remove DM core's dm_vcalloc() and just use kvcalloc or kvmalloc_array
instead (depending whether zeroing is useful).
- Fix request-based DM's double free of blk_mq_tag_set in device remove
after table load fails.
- Improve DM persistent data performance on non-x86 by fixing packed
structs to have a stated alignment. Also remove needless extra work
from redundant calls to sm_disk_get_nr_free() and a paranoid BUG_ON()
that caused duplicate checksum calculation.
- Fix missing goto in DM integrity's bitmap_flush_interval error
handling.
- Add "reset_recalculate" feature flag to DM integrity.
- Improve DM integrity by leveraging discard support to avoid needless
re-writing of metadata and also use discard support to improve hash
recalculation.
- Fix race with DM raid target's reshape and MD raid4/5/6 resync that
resulted in inconsistant reshape state during table reloads.
- Update DM raid target to temove unnecessary discard limits for raid0
and raid10 now that MD has optimized discard handling for both raid
levels.
* tag 'for-5.13/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (26 commits)
dm raid: remove unnecessary discard limits for raid0 and raid10
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
dm integrity: use discard support when recalculating
dm integrity: increase RECALC_SECTORS to improve recalculate speed
dm integrity: don't re-write metadata if discarding same blocks
dm raid: fix inconclusive reshape layout on fast raid4/5/6 table reload sequences
dm raid: fix fall-through warning in rs_check_takeover() for Clang
dm clone metadata: remove unused function
dm integrity: fix missing goto in bitmap_flush_interval error handling
dm: replace dm_vcalloc()
dm space map common: fix division bug in sm_ll_find_free_block()
dm persistent data: packed struct should have an aligned() attribute too
dm btree spine: remove paranoid node_check call in node_prep_for_write()
dm space map disk: remove redundant calls to sm_disk_get_nr_free()
dm integrity: add the "reset_recalculate" feature flag
dm persistent data: remove unused return from exit_shadow_spine()
dm cache: remove needless request_queue NULL pointer checks
dm thin: remove needless request_queue NULL pointer check
dm: unexport dm_{get,put}_table_device
dm ebs: fix a few typos
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Pull kvm updates from Paolo Bonzini:
"This is a large update by KVM standards, including AMD PSP (Platform
Security Processor, aka "AMD Secure Technology") and ARM CoreSight
(debug and trace) changes.
ARM:
- CoreSight: Add support for ETE and TRBE
- Stage-2 isolation for the host kernel when running in protected
mode
- Guest SVE support when running in nVHE mode
- Force W^X hypervisor mappings in nVHE mode
- ITS save/restore for guests using direct injection with GICv4.1
- nVHE panics now produce readable backtraces
- Guest support for PTP using the ptp_kvm driver
- Performance improvements in the S2 fault handler
x86:
- AMD PSP driver changes
- Optimizations and cleanup of nested SVM code
- AMD: Support for virtual SPEC_CTRL
- Optimizations of the new MMU code: fast invalidation, zap under
read lock, enable/disably dirty page logging under read lock
- /dev/kvm API for AMD SEV live migration (guest API coming soon)
- support SEV virtual machines sharing the same encryption context
- support SGX in virtual machines
- add a few more statistics
- improved directed yield heuristics
- Lots and lots of cleanups
Generic:
- Rework of MMU notifier interface, simplifying and optimizing the
architecture-specific code
- a handful of "Get rid of oprofile leftovers" patches
- Some selftests improvements"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (379 commits)
KVM: selftests: Speed up set_memory_region_test
selftests: kvm: Fix the check of return value
KVM: x86: Take advantage of kvm_arch_dy_has_pending_interrupt()
KVM: SVM: Skip SEV cache flush if no ASIDs have been used
KVM: SVM: Remove an unnecessary prototype declaration of sev_flush_asids()
KVM: SVM: Drop redundant svm_sev_enabled() helper
KVM: SVM: Move SEV VMCB tracking allocation to sev.c
KVM: SVM: Explicitly check max SEV ASID during sev_hardware_setup()
KVM: SVM: Unconditionally invoke sev_hardware_teardown()
KVM: SVM: Enable SEV/SEV-ES functionality by default (when supported)
KVM: SVM: Condition sev_enabled and sev_es_enabled on CONFIG_KVM_AMD_SEV=y
KVM: SVM: Append "_enabled" to module-scoped SEV/SEV-ES control variables
KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features
KVM: SVM: Move SEV module params/variables to sev.c
KVM: SVM: Disable SEV/SEV-ES if NPT is disabled
KVM: SVM: Free sev_asid_bitmap during init if SEV setup fails
KVM: SVM: Zero out the VMCB array used to track SEV ASID association
x86/sev: Drop redundant and potentially misleading 'sev_enabled'
KVM: x86: Move reverse CPUID helpers to separate header file
KVM: x86: Rename GPR accessors to make mode-aware variants the defaults
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- Big cleanup of almost unsused parts of the IOMMU API by Christoph
Hellwig. This mostly affects the Freescale PAMU driver.
- New IOMMU driver for Unisoc SOCs
- ARM SMMU Updates from Will:
- Drop vestigial PREFETCH_ADDR support (SMMUv3)
- Elide TLB sync logic for empty gather (SMMUv3)
- Fix "Service Failure Mode" handling (SMMUv3)
- New Qualcomm compatible string (SMMUv2)
- Removal of the AMD IOMMU performance counter writeable check on AMD.
It caused long boot delays on some machines and is only needed to
work around an errata on some older (possibly pre-production) chips.
If someone is still hit by this hardware issue anyway the performance
counters will just return 0.
- Support for targeted invalidations in the AMD IOMMU driver. Before
that the driver only invalidated a single 4k page or the whole IO/TLB
for an address space. This has been extended now and is mostly useful
for emulated AMD IOMMUs.
- Several fixes for the Shared Virtual Memory support in the Intel VT-d
driver
- Mediatek drivers can now be built as modules
- Re-introduction of the forcedac boot option which got lost when
converting the Intel VT-d driver to the common dma-iommu
implementation.
- Extension of the IOMMU device registration interface and support
iommu_ops to be const again when drivers are built as modules.
* tag 'iommu-updates-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (84 commits)
iommu: Streamline registration interface
iommu: Statically set module owner
iommu/mediatek-v1: Add error handle for mtk_iommu_probe
iommu/mediatek-v1: Avoid build fail when build as module
iommu/mediatek: Always enable the clk on resume
iommu/fsl-pamu: Fix uninitialized variable warning
iommu/vt-d: Force to flush iotlb before creating superpage
iommu/amd: Put newline after closing bracket in warning
iommu/vt-d: Fix an error handling path in 'intel_prepare_irq_remapping()'
iommu/vt-d: Fix build error of pasid_enable_wpe() with !X86
iommu/amd: Remove performance counter pre-initialization test
Revert "iommu/amd: Fix performance counter initialization"
iommu/amd: Remove duplicate check of devid
iommu/exynos: Remove unneeded local variable initialization
iommu/amd: Page-specific invalidations for more than one page
iommu/arm-smmu-v3: Remove the unused fields for PREFETCH_CONFIG command
iommu/vt-d: Avoid unnecessary cache flush in pasid entry teardown
iommu/vt-d: Invalidate PASID cache when root/context entry changed
iommu/vt-d: Remove WO permissions on second-level paging entries
iommu/vt-d: Report the right page fault address
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Pull rdma updates from Jason Gunthorpe:
"This is significantly bug fixes and general cleanups. The noteworthy
new features are fairly small:
- XRC support for HNS and improves RQ operations
- Bug fixes and updates for hns, mlx5, bnxt_re, hfi1, i40iw, rxe, siw
and qib
- Quite a few general cleanups on spelling, error handling, static
checker detections, etc
- Increase the number of device ports supported beyond 255. High port
count software switches now exist
- Several bug fixes for rtrs
- mlx5 Device Memory support for host controlled atomics
- Report SRQ tables through to rdma-tool"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (145 commits)
IB/qib: Remove redundant assignment to ret
RDMA/nldev: Add copy-on-fork attribute to get sys command
RDMA/bnxt_re: Fix a double free in bnxt_qplib_alloc_res
RDMA/siw: Fix a use after free in siw_alloc_mr
IB/hfi1: Remove redundant variable rcd
RDMA/nldev: Add QP numbers to SRQ information
RDMA/nldev: Return SRQ information
RDMA/restrack: Add support to get resource tracking for SRQ
RDMA/nldev: Return context information
RDMA/core: Add CM to restrack after successful attachment to a device
RDMA/cma: Skip device which doesn't support CM
RDMA/rxe: Fix a bug in rxe_fill_ip_info()
RDMA/mlx5: Expose private query port
RDMA/mlx4: Remove an unused variable
RDMA/mlx5: Fix type assignment for ICM DM
IB/mlx5: Set right RoCE l3 type and roce version while deleting GID
RDMA/i40iw: Fix error unwinding when i40iw_hmc_sd_one fails
RDMA/cxgb4: add missing qpid increment
IB/ipoib: Remove unnecessary struct declaration
RDMA/bnxt_re: Get rid of custom module reference counting
...
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The pattern prefixed with '/' matches files in the same directory,
but not ones in sub-directories.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Andra Paraschiv <andraprs@amazon.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Gabriel Krisman Bertazi <krisman@collabora.com>
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In commit f4da56529da60 ("net: stmmac: Add support for external
trigger timestamping"), struct stmmac_priv was declared at line 507
which caused duplicate struct declarations.
Remove later duplicate declaration here.
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A number of PHYs support the PHY tunable to set and get
downshift. However, only 88E1116R enables downshift by default. Extend
this default enabled to all the PHYs that support the downshift
tunable.
Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove it from the MODULE_AUTHOR statements referencing it.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If selftest and reset are performed at the same time, the phy
loopback setting may be still in enable state after the reset,
and device cannot link up. So fix this issue by disabling phy
loopback before phy_start().
Fixes: 256727da7395 ("net: hns3: Add MDIO support to HNS3 Ethernet driver for hip08 SoC")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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HW error and global reset are reported through MSIX interrupts.
The same error may be reported to different functions at the
same time. When global reset begins, the pending reset request
set by this error is unnecessary. So clear the pending reset
request after the reset is complete to avoid the repeated reset.
Fixes: f6162d44126c ("net: hns3: add handling of hw errors reported through MSIX")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, netif_tx_stop_all_queues() is used to ensure that
the xmit is not running, but for the concurrent case it will
not take effect, since netif_tx_stop_all_queues() just sets
a flag without locking to indicate that the xmit queue(s)
should not be run.
So use netif_tx_disable() to replace netif_tx_stop_all_queues(),
it takes the xmit queue lock while marking the queue stopped.
Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When skb->ip_summed is CHECKSUM_PARTIAL, for non-tunnel udp packet,
which has a dest port as the IANA assigned, the hardware is expected
to do the checksum offload, but the hardware whose version is below
V3 will not do the checksum offload when udp dest port is 4790.
So fixes it by doing the checksum in software for this case.
Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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An issue found when network interface is down and up again, FPE handshake
fails to trigger. This is due to __FPE_REMOVING bit remains being set in
stmmac_fpe_stop_wq() but not cleared in stmmac_fpe_start_wq(). This
cause FPE workqueue task, stmmac_fpe_lp_task() not able to be executed.
To fix this, add clearing __FPE_REMOVING bit in stmmac_fpe_start_wq().
Fixes: 5a5586112b92 ("net: stmmac: support FPE link partner hand-shaking procedure")
Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge misc updates from Andrew Morton:
"A few misc subsystems and some of MM.
175 patches.
Subsystems affected by this patch series: ia64, kbuild, scripts, sh,
ocfs2, kfifo, vfs, kernel/watchdog, and mm (slab-generic, slub,
kmemleak, debug, pagecache, msync, gup, memremap, memcg, pagemap,
mremap, dma, sparsemem, vmalloc, documentation, kasan, initialization,
pagealloc, and memory-failure)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (175 commits)
mm/memory-failure: unnecessary amount of unmapping
mm/mmzone.h: fix existing kernel-doc comments and link them to core-api
mm: page_alloc: ignore init_on_free=1 for debug_pagealloc=1
net: page_pool: use alloc_pages_bulk in refill code path
net: page_pool: refactor dma_map into own function page_pool_dma_map
SUNRPC: refresh rq_pages using a bulk page allocator
SUNRPC: set rq_page_end differently
mm/page_alloc: inline __rmqueue_pcplist
mm/page_alloc: optimize code layout for __alloc_pages_bulk
mm/page_alloc: add an array-based interface to the bulk page allocator
mm/page_alloc: add a bulk page allocator
mm/page_alloc: rename alloced to allocated
mm/page_alloc: duplicate include linux/vmalloc.h
mm, page_alloc: avoid page_to_pfn() in move_freepages()
mm/Kconfig: remove default DISCONTIGMEM_MANUAL
mm: page_alloc: dump migrate-failed pages
mm/mempolicy: fix mpol_misplaced kernel-doc
mm/mempolicy: rewrite alloc_pages_vma documentation
mm/mempolicy: rewrite alloc_pages documentation
mm/mempolicy: rename alloc_pages_current to alloc_pages
...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"There is a lot going on!
Core changes:
- A semantic change to handle pinmux and pinconf in explicit order
while up until now we depended on the semantic order in the device
tree. The device tree is a functional programming language and does
not imply any order, so the right thing is for the pin control core
to provide these semantics.
- Add a new pinmux-select debugfs file which makes it possible to go
in and select functions for a pin manually (iteratively, at the
prompt) for debugging purposes.
- Fixes to gpio regmap handling for a new pin control driver making
use of regmap-gpio.
- Use octal permissions on debugfs files.
New drivers:
- A massive rewrite of the former custom pin control driver for MIPS
Broadcom devices to instead use the pin control subsystem. New pin
control drivers for BCM6345, BCM6328, BCM6358, BCM6362, BCM6368,
BCM63268 and BCM6318 SoC variants are implemented.
- Support for PM8350, PM8350B, PM8350C, PMK8350, PMR735A and PMR735B
in the Qualcomm PMIC GPIO driver. Also the two GPIOs on PM8008 are
supported.
- Support for the Rockchip RK3568/RK3566 pin controller.
- Support for Ingenic JZ4730, JZ4750, JZ4755, JZ4775 and X2000.
- Support for Mediatek MTK8195.
- Add a new Xilinx ZynqMP pin control driver.
Driver improvements and non-urgent fixes:
- Modularization and improvements of the Rockchip drivers.
- Some new pins added to the description of new Renesas SoCs.
- Clarifications of the GPIO base calculation in the Intel driver.
- Fix the function names for the MPP54 and MPP55 pins in the Armada
CP110 pin controller.
- GPIO wakeup interrupt map for Qualcomm SC7280 and SM8350.
- Support for ACPI probing of the Qualcomm SC8180x.
- Fix interrupt clear status on rockchip
- Fix some missing pins on the Ingenic JZ4770, some semantic fixes
for the behaviour of the Ingenic pin controller. Add DMIC pins for
JZ4780, X1000, X1500 and X1830.
- A slew of janitorial like of_node_put() calls"
* tag 'pinctrl-v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
pinctrl: Add Xilinx ZynqMP pinctrl driver support
firmware: xilinx: Add pinctrl support
pinctrl: rockchip: do coding style for mux route struct
pinctrl: Add PIN_CONFIG_MODE_PWM to enum pin_config_param
pinctrl: Introduce MODE group in enum pin_config_param
pinctrl: Keep enum pin_config_param ordered by name
dt-bindings: pinctrl: Add binding for ZynqMP pinctrl driver
pinctrl: core: Fix kernel doc string for pin_get_name()
pinctrl: mediatek: use spin lock in mtk_rmw
pinctrl: add drive for I2C related pins on MT8195
pinctrl: add pinctrl driver on mt8195
dt-bindings: pinctrl: mt8195: add pinctrl file and binding document
pinctrl: Ingenic: Add pinctrl driver for X2000.
pinctrl: Ingenic: Add pinctrl driver for JZ4775.
pinctrl: Ingenic: Add pinctrl driver for JZ4755.
pinctrl: Ingenic: Add pinctrl driver for JZ4750.
pinctrl: Ingenic: Add pinctrl driver for JZ4730.
dt-bindings: pinctrl: Add bindings for new Ingenic SoCs.
pinctrl: Ingenic: Reformat the code.
pinctrl: Ingenic: Add DMIC pins support for Ingenic SoCs.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- new drivers for Silicon Labs CP2615 and the HiSilicon I2C unit
- bigger refactoring for the MPC driver
- support for full software nodes - no need to work around with only
properties anymore
- we now have 'devm_i2c_add_adapter', too
- sub-system wide fixes for the RPM refcounting problem which often
caused a leak when an error was encountered during probe
- the rest is usual driver updates and improvements
* 'i2c/for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits)
i2c: mediatek: Use scl_int_delay_ns to compensate clock-stretching
i2c: mediatek: Fix wrong dma sync flag
i2c: mediatek: Fix send master code at more than 1MHz
i2c: sh7760: fix IRQ error path
i2c: i801: Add support for Intel Alder Lake PCH-M
i2c: core: Fix spacing error by checkpatch
i2c: s3c2410: simplify getting of_device_id match data
i2c: nomadik: Fix space errors
i2c: iop3xx: Fix coding style issues
i2c: amd8111: Fix coding style issues
i2c: mpc: Drop duplicate message from devm_platform_ioremap_resource()
i2c: mpc: Use device_get_match_data() helper
i2c: mpc: Remove CONFIG_PM_SLEEP ifdeffery
i2c: mpc: Use devm_clk_get_optional()
i2c: mpc: Update license and copyright
i2c: mpc: Interrupt driven transfer
i2c: sh7760: add IRQ check
i2c: rcar: add IRQ check
i2c: mlxbf: add IRQ check
i2c: jz4780: add IRQ check
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- Surface Aggregator Module support from Maximilian Luz
- Apple Magic Mouse 2 support from John Chen
- Support for newer Quad/BT 2.0 Logitech receivers in HID proxy mode
from Hans de Goede
- Thinkpad X1 Tablet keyboard support from Hans de Goede
- Support for FTDI FT260 I2C host adapter from Michael Zaidman
- other various small device-specific quirks, fixes and cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (46 commits)
HID: wacom: Setup pen input capabilities to the targeted tools
HID: hid-sensor-hub: Move 'hsdev' description to correct struct definition
HID: hid-sensor-hub: Remove unused struct member 'quirks'
HID: wacom_sys: Demote kernel-doc abuse
HID: hid-sensor-custom: Remove unused variable 'ret'
HID: hid-uclogic-params: Ensure function names are present and correct in kernel-doc headers
HID: hid-uclogic-rdesc: Kernel-doc is for functions and structs
HID: hid-logitech-hidpp: Fix conformant kernel-doc header and demote abuses
HID: hid-picolcd_core: Remove unused variable 'ret'
HID: hid-kye: Fix incorrect function name for kye_tablet_enable()
HID: hid-core: Fix incorrect function name in header
HID: hid-alps: Correct struct misnaming
HID: usbhid: hid-pidff: Demote a couple kernel-doc abuses
HID: usbhid: Repair a formatting issue in a struct description
HID: hid-thrustmaster: Demote a bunch of kernel-doc abuses
HID: input: map battery capacity (00850065)
HID: magicmouse: fix reconnection of Magic Mouse 2
HID: magicmouse: fix 3 button emulation of Mouse 2
HID: magicmouse: add Apple Magic Mouse 2 support
HID: lenovo: Add support for Thinkpad X1 Tablet Thin keyboard
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"No surprises in this development cycle, and most of work is about the
fixes and the improvements of the existing code, while a new LED
control layer and a few new drivers have been introduced.
Here are some highlights:
Core:
- A common mute-LED framework was introduced. It is used by HD-audio
for now, more adaption will follow later. The former "Mic Mute-LED
Mode" mixer control has been replaced with the corresponding sysfs
now.
- User-control management was changed to count consumed bytes instead
of capping by number of elements; this will allow more controls in
the normal usage pattern while avoiding the possible memory
exhaustion DoS
ASoC:
- Continued refactoring and cleanups in ASoC core and generic card
drivers
- Wide range of small cppcheck and warning fixes
- New drivers for Freescale i.MX DMA over rpmsg, Mediatek MT6358
accessory detection, and Realtek RT1019, RT1316, RT711 and RT715
USB-audio:
- Continued improvements and fixes of the implicit feedback mode,
including better support for Pioneer and Roland/BOSS devices
HD-audio:
- Default back to non-buffer preallocation on x86
- Cirrus codec improvements, more quirks for Realtek codecs
Others:
- New virtio sound driver
- FireWire Bebob updates"
* tag 'sound-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (587 commits)
ALSA: hda/conexant: Re-order CX5066 quirk table entries
ALSA: hda/realtek: Remove redundant entry for ALC861 Haier/Uniwill devices
ALSA: hda/realtek: Re-order ALC662 quirk table entries
ALSA: hda/realtek: Re-order remaining ALC269 quirk table entries
ALSA: hda/realtek: Re-order ALC269 Lenovo quirk table entries
ALSA: hda/realtek: Re-order ALC269 Sony quirk table entries
ALSA: hda/realtek: Re-order ALC269 ASUS quirk table entries
ALSA: hda/realtek: Re-order ALC269 Dell quirk table entries
ALSA: hda/realtek: Re-order ALC269 Acer quirk table entries
ALSA: hda/realtek: Re-order ALC269 HP quirk table entries
ALSA: hda/realtek: Re-order ALC882 Clevo quirk table entries
ALSA: hda/realtek: Re-order ALC882 Sony quirk table entries
ALSA: hda/realtek: Re-order ALC882 Acer quirk table entries
ALSA: usb-audio: Remove redundant assignment to len
ALSA: hda/realtek: Add quirk for Intel Clevo PCx0Dx
ALSA: virtio: fix kernel-doc
ALSA: hda/cirrus: Use CS8409 filter to fix abnormal sounds on Bullseye
ALSA: hda/cirrus: Set Initial DMIC volume for Bullseye to -26 dB
ALSA: sb: Fix two use after free in snd_sb_qsound_build
ALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer
...
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Pull more drm updates from Dave Airlie:
"Looks like I missed a tegra feature request for next, but should still
be fine since it's pretty self contained.
Apart from that got a set of i915 and amdgpu fixes as per usual along
with a few misc fixes.
tegra:
- Tegra186 hardware cursor support
- better capability reporting for different SoC
- better framebuffer modifier support
- host1x fixes
ttm:
- fix unswappable BO handling
efifb:
- check for PCI before using it
amdgpu:
- Fixes for Aldebaran
- Display LTTPR fixes
- eDP fixes
- Fixes for Vangogh
- RAS fixes
- ASPM support
- Renoir SMU fixes
- Modifier fixes
- Misc code cleanups
- Freesync fixes
i915:
- Several fixes to GLK handling in recent display refactoring
- Rare watchdog timer race fix
- Cppcheck redundant condition fix
- Overlay error code propagation fix
- Documentation fix
- gvt: Remove one unused function warning
- gvt: Fix intel_gvt_init_device() return type
- gvt: Remove one duplicated register accessible check"
* tag 'drm-next-2021-04-30' of git://anongit.freedesktop.org/drm/drm: (111 commits)
efifb: Check efifb_pci_dev before using it
drm/i915: Fix docbook descriptions for i915_gem_shrinker
drm/i915: fix an error code in intel_overlay_do_put_image()
drm/i915/display/psr: Fix cppcheck warnings
drm/i915: Disable LTTPR detection on GLK once again
drm/i915: Restore lost glk ccs w/a
drm/i915: Restore lost glk FBC 16bpp w/a
drm/i915: Take request reference before arming the watchdog timer
drm/ttm: fix error handling if no BO can be swapped out v4
drm/i915/gvt: Remove duplicated register accessible check
drm/amdgpu/gmc9: remove dummy read workaround for newer chips
drm/amdgpu: Add mem sync flag for IB allocated by SA
drm/amdgpu: Fix SDMA RAS error reporting on Aldebaran
drm/amdgpu: Reset RAS error count and status regs
Revert "drm/amdgpu: workaround the TMR MC address issue (v2)"
drm/amd/display: 3.2.132
drm/amd/display: [FW Promotion] Release 0.0.62
drm/amd/display: add helper for enabling mst stream features
drm/amd/display: Report Proper Quantization Range in AVI Infoframe
drm/amd/display: Fix call to pass bpp in 16ths of a bit
...
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0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") disabled access
to VPD of the ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter because
reading past the end of the VPD caused NMIs.
104daa71b396 ("PCI: Determine actual VPD size on first access") limits
reads to the actual size of VPD, which should prevent these NMIs.
104daa71b396 was merged *before* 0d5370d1d852, but we think the testing
that prompted 0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722")
was done with a kernel that lacked 104daa71b396. See [1, 2].
Remove the quirk added by 0d5370d1d852 ("PCI: Prevent VPD access for QLogic
ISP2722") so customers can read the HBA VPD.
[1] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2012161641230.28924@irv1user01.caveonetworks.com/
[2] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2104071535110.13940@irv1user01.caveonetworks.com/
[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20210409215153.16569-2-aeasi@marvell.com
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v4.6+
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Factor out the "get function 0" logic into pci_get_func0_dev().
[bhelgaas: keep PCI_DEVFN(PCI_SLOT()) instead of exposing implementation
details, commit log]
Link: https://lore.kernel.org/r/75d1f619-8a35-690d-8fc8-e851264a4bbb@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Only SRDT tag is the end tag, and no caller is interested in it. This
allows to remove all SRDT tag handling.
Link: https://lore.kernel.org/r/3f63f06f-734f-8fff-9518-27fe1faf903d@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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All callers pass 0 as offset. Therefore remove the parameter and use a
fixed offset 0 in pci_vpd_find_tag().
Link: https://lore.kernel.org/r/f62e6e19-5423-2ead-b2bd-62844b23ef8f@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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pci_init_capabilities() is the only caller and doesn't use the return
value. So let's change the return type to void.
Link: https://lore.kernel.org/r/663ec440-8375-1459-ddb4-98ea76e75917@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Realtek RTL8169/8168/8125 NIC families indicate VPD capability and an
optional VPD EEPROM can be connected via I2C/SPI. However I haven't seen
any card or system with such a VPD EEPROM yet. The missing EEPROM causes
the following warning whenever e.g. lscpi -vv is executed.
invalid short VPD tag 00 at offset 01
The warning confuses users, and I think we should handle the situation more
gently. Therefore, if first VPD byte is read as 0x00, assume a missing
optional VPD PROM and replace the warning with a more descriptive message
at info level.
[bhelgaas: fix pre-existing whitespace]
Link: https://lore.kernel.org/r/ccbc11f1-4dbb-e2c8-d0ea-559e06d4c340@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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24a1720a0841 ("cxgb4: collect serial config version from register") removed
the only usage of pci_set_vpd_size(). If a device needs to override the
auto-detected VPD size, then this can be done with a PCI quirk, as is done
for Chelsio devices. There's no need to allow drivers to change the VPD
size.
Remove pci_set_vpd_size().
[bhelgaas: squash in Arnd's fix for "'pci_vpd_set_size' defined but not
used" from
https://lore.kernel.org/r/20210421140334.3847155-1-arnd@kernel.org]
Link: https://lore.kernel.org/r/47d86e52-9bcf-7da7-1edb-0d988a7a82ab@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Enable KFENCE for 32-bit.
- Implement EBPF for 32-bit.
- Convert 32-bit to do interrupt entry/exit in C.
- Convert 64-bit BookE to do interrupt entry/exit in C.
- Changes to our signal handling code to use user_access_begin/end()
more extensively.
- Add support for time namespaces (CONFIG_TIME_NS)
- A series of fixes that allow us to reenable STRICT_KERNEL_RWX.
- Other smaller features, fixes & cleanups.
Thanks to Alexey Kardashevskiy, Andreas Schwab, Andrew Donnellan, Aneesh
Kumar K.V, Athira Rajeev, Bhaskar Chowdhury, Bixuan Cui, Cédric Le
Goater, Chen Huang, Chris Packham, Christophe Leroy, Christopher M.
Riedl, Colin Ian King, Dan Carpenter, Daniel Axtens, Daniel Henrique
Barboza, David Gibson, Davidlohr Bueso, Denis Efremov, dingsenjie,
Dmitry Safonov, Dominic DeMarco, Fabiano Rosas, Ganesh Goudar, Geert
Uytterhoeven, Geetika Moolchandani, Greg Kurz, Guenter Roeck, Haren
Myneni, He Ying, Jiapeng Chong, Jordan Niethe, Laurent Dufour, Lee
Jones, Leonardo Bras, Li Huafei, Madhavan Srinivasan, Mahesh Salgaonkar,
Masahiro Yamada, Nathan Chancellor, Nathan Lynch, Nicholas Piggin,
Oliver O'Halloran, Paul Menzel, Pu Lehui, Randy Dunlap, Ravi Bangoria,
Rosen Penev, Russell Currey, Santosh Sivaraj, Sebastian Andrzej Siewior,
Segher Boessenkool, Shivaprasad G Bhat, Srikar Dronamraju, Stephen
Rothwell, Thadeu Lima de Souza Cascardo, Thomas Gleixner, Tony Ambardar,
Tyrel Datwyler, Vaibhav Jain, Vincenzo Frascino, Xiongwei Song, Yang Li,
Yu Kuai, and Zhang Yunkai.
* tag 'powerpc-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (302 commits)
powerpc/signal32: Fix erroneous SIGSEGV on RT signal return
powerpc: Avoid clang uninitialized warning in __get_user_size_allowed
powerpc/papr_scm: Mark nvdimm as unarmed if needed during probe
powerpc/kvm: Fix build error when PPC_MEM_KEYS/PPC_PSERIES=n
powerpc/kasan: Fix shadow start address with modules
powerpc/kernel/iommu: Use largepool as a last resort when !largealloc
powerpc/kernel/iommu: Align size for IOMMU_PAGE_SIZE() to save TCEs
powerpc/44x: fix spelling mistake in Kconfig "varients" -> "variants"
powerpc/iommu: Annotate nested lock for lockdep
powerpc/iommu: Do not immediately panic when failed IOMMU table allocation
powerpc/iommu: Allocate it_map by vmalloc
selftests/powerpc: remove unneeded semicolon
powerpc/64s: remove unneeded semicolon
powerpc/eeh: remove unneeded semicolon
powerpc/selftests: Add selftest to test concurrent perf/ptrace events
powerpc/selftests/perf-hwbreak: Add testcases for 2nd DAWR
powerpc/selftests/perf-hwbreak: Coalesce event creation code
powerpc/selftests/ptrace-hwbreak: Add testcases for 2nd DAWR
powerpc/configs: Add IBMVNIC to some 64-bit configs
selftests/powerpc: Add uaccess flush test
...
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Commit 29efc390b946 ("md/md0: optimize raid0 discard handling") and
commit d30588b2731f ("md/raid10: improve raid10 discard request")
remove MD raid0's and raid10's inability to properly handle large
discards. So eliminate associated constraints from dm-raid's support.
Depends-on: 29efc390b946 ("md/md0: optimize raid0 discard handling")
Depends-on: d30588b2731f ("md/raid10: improve raid10 discard request")
Reported-by: Matthew Ruffell <matthew.ruffell@canonical.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
|
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This is a shim around vunmap_range, get rid of it.
Move the main API comment from the _noflush variant to the normal
variant, and make _noflush internal to mm/.
[npiggin@gmail.com: fix nommu builds and a comment bug per sfr]
Link: https://lkml.kernel.org/r/1617292598.m6g0knx24s.astroid@bobo.none
[akpm@linux-foundation.org: move vunmap_range_noflush() stub inside !CONFIG_MMU, not !CONFIG_NUMA]
[npiggin@gmail.com: fix nommu builds]
Link: https://lkml.kernel.org/r/1617292497.o1uhq5ipxp.astroid@bobo.none
Link: https://lkml.kernel.org/r/20210322021806.892164-5-npiggin@gmail.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Cédric Le Goater <clg@kaod.org>
Cc: Uladzislau Rezki <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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remap_io_sg claims that the pgprot is pre-verified using an io_mapping,
but actually does not get passed an io_mapping and just uses the pgprot in
the VMA. Remove the apply_to_page_range abuse and just loop over
remap_pfn_range for each segment.
Note: this could use io_mapping_map_user by passing an iomap to
remap_io_sg if the maintainers can verify that the pgprot in the iomap in
the only caller is indeed the desired one here.
Link: https://lkml.kernel.org/r/20210326055505.1424432-5-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Replace the home-grown remap_io_mapping that abuses apply_to_page_range
with the proper io_mapping_map_user interface.
Link: https://lkml.kernel.org/r/20210326055505.1424432-4-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use the newly added unpin_user_page_range_dirty_lock() for more quickly
unpinning a consecutive range of pages represented as compound pages.
This will also calculate number of pages to unpin (for the tail pages
which matching head page) and thus batch the refcount update.
Running a test program which calls memory range reg/unreg on a region 1G
in size and measures cost of both operations together (in a guest using
rxe) with THP and hugetlbfs:
Before:
590 rounds in 5.003 sec: 8480.335 usec / round
6898 rounds in 60.001 sec: 8698.367 usec / round
After:
2688 rounds in 5.002 sec: 1860.786 usec / round
32517 rounds in 60.001 sec: 1845.225 usec / round
Link: https://lkml.kernel.org/r/20210212130843.13865-5-joao.m.martins@oracle.com
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Doug Ledford <dledford@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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When loading a device-mapper table for a request-based mapped device,
and the allocation/initialization of the blk_mq_tag_set for the device
fails, a following device remove will cause a double free.
E.g. (dmesg):
device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device
device-mapper: ioctl: unable to set up device queue for new table.
Unable to handle kernel pointer dereference in virtual kernel address space
Failing address: 0305e098835de000 TEID: 0305e098835de803
Fault in home space mode while using kernel ASCE.
AS:000000025efe0007 R3:0000000000000024
Oops: 0038 ilc:3 [#1] SMP
Modules linked in: ... lots of modules ...
Supported: Yes, External
CPU: 0 PID: 7348 Comm: multipathd Kdump: loaded Tainted: G W X 5.3.18-53-default #1 SLE15-SP3
Hardware name: IBM 8561 T01 7I2 (LPAR)
Krnl PSW : 0704e00180000000 000000025e368eca (kfree+0x42/0x330)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3
Krnl GPRS: 000000000000004a 000000025efe5230 c1773200d779968d 0000000000000000
000000025e520270 000000025e8d1b40 0000000000000003 00000007aae10000
000000025e5202a2 0000000000000001 c1773200d779968d 0305e098835de640
00000007a8170000 000003ff80138650 000000025e5202a2 000003e00396faa8
Krnl Code: 000000025e368eb8: c4180041e100 lgrl %r1,25eba50b8
000000025e368ebe: ecba06b93a55 risbg %r11,%r10,6,185,58
#000000025e368ec4: e3b010000008 ag %r11,0(%r1)
>000000025e368eca: e310b0080004 lg %r1,8(%r11)
000000025e368ed0: a7110001 tmll %r1,1
000000025e368ed4: a7740129 brc 7,25e369126
000000025e368ed8: e320b0080004 lg %r2,8(%r11)
000000025e368ede: b904001b lgr %r1,%r11
Call Trace:
[<000000025e368eca>] kfree+0x42/0x330
[<000000025e5202a2>] blk_mq_free_tag_set+0x72/0xb8
[<000003ff801316a8>] dm_mq_cleanup_mapped_device+0x38/0x50 [dm_mod]
[<000003ff80120082>] free_dev+0x52/0xd0 [dm_mod]
[<000003ff801233f0>] __dm_destroy+0x150/0x1d0 [dm_mod]
[<000003ff8012bb9a>] dev_remove+0x162/0x1c0 [dm_mod]
[<000003ff8012a988>] ctl_ioctl+0x198/0x478 [dm_mod]
[<000003ff8012ac8a>] dm_ctl_ioctl+0x22/0x38 [dm_mod]
[<000000025e3b11ee>] ksys_ioctl+0xbe/0xe0
[<000000025e3b127a>] __s390x_sys_ioctl+0x2a/0x40
[<000000025e8c15ac>] system_call+0xd8/0x2c8
Last Breaking-Event-Address:
[<000000025e52029c>] blk_mq_free_tag_set+0x6c/0xb8
Kernel panic - not syncing: Fatal exception: panic_on_oops
When allocation/initialization of the blk_mq_tag_set fails in
dm_mq_init_request_queue(), it is uninitialized/freed, but the pointer
is not reset to NULL; so when dev_remove() later gets into
dm_mq_cleanup_mapped_device() it sees the pointer and tries to
uninitialize and free it again.
Fix this by setting the pointer to NULL in dm_mq_init_request_queue()
error-handling. Also set it to NULL in dm_mq_cleanup_mapped_device().
Cc: <stable@vger.kernel.org> # 4.6+
Fixes: 1c357a1e86a4 ("dm: allocate blk_mq_tag_set rather than embed in mapped_device")
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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If we have discard support we don't have to recalculate hash - we can
just fill the metadata with the discard pattern.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Increase RECALC_SECTORS because it improves recalculate speed slightly
(from 390kiB/s to 410kiB/s).
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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If we discard already discarded blocks we do not need to write discard
pattern to the metadata, because it is already there.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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The condition to check the cdev pointer validity on
css_sch_device_unregister() is a leftover from the 'commit 8cc0dcfdc1c0
("s390/cio: remove pm support from ccw bus driver")'. This could lead to a
situation, where detaching the device is not happening completely. Remove
this invalid condition in the IO_SCH_UNREG case.
Link: https://lore.kernel.org/r/20210423100843.2230969-1-vneethv@linux.ibm.com
Fixes: 8cc0dcfdc1c0 ("s390/cio: remove pm support from ccw bus driver")
Reported-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Suggested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Tested-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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With zpci_configure_device() now always called on a device that has
already been configured on the platform level its name has become
misleading. Rename it to zpci_scan_configured_device() to signify that
the function now only handles the correct scanning of a newly configured
PCI function taking care of the special handling necessary for function
0 and functions parked waiting for a PCI bus that can't be created
without first seeing function 0.
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Variable 'ret' is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant assignment
and can be removed.
Clean up the following clang-analyzer warning:
drivers/infiniband/hw/qib/qib_sd7220.c:690:2: warning: Value stored to
'ret' is never read [clang-analyzer-deadcode.DeadStores]
Link: https://lore.kernel.org/r/1619692940-104771-1-git-send-email-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Revert commit 4b9ee772eaa8 ("ACPI: scan: Turn off unused power
resources during initialization") that is reported to cause
initialization issues to occur.
Reported-by: Shujun Wang <wsj20369@163.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
drm/i915 fixes for v5.13-rc1:
- Several fixes to GLK handling in recent display refactoring (Ville)
- Rare watchdog timer race fix (Tvrtko)
- Cppcheck redundant condition fix (José)
- Overlay error code propagation fix (Dan Carpenter)
- Documentation fix (Maarten)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/871raw5d3g.fsf@intel.com
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.13-2021-04-23:
amdgpu:
- Fixes for Aldebaran
- Display LTTPR fixes
- eDP fixes
- Fixes for Vangogh
- RAS fixes
- ASPM support
- Renoir SMU fixes
- Modifier fixes
- Misc code cleanups
- Freesync fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423223920.3786-1-alexander.deucher@amd.com
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