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* for-6.15/io_uring-rx-zc: (80 commits)
io_uring/zcrx: add selftest case for recvzc with read limit
io_uring/zcrx: add a read limit to recvzc requests
io_uring: add missing IORING_MAP_OFF_ZCRX_REGION in io_uring_mmap
io_uring: Rename KConfig to Kconfig
io_uring/zcrx: fix leaks on failed registration
io_uring/zcrx: recheck ifq on shutdown
io_uring/zcrx: add selftest
net: add documentation for io_uring zcrx
io_uring/zcrx: add copy fallback
io_uring/zcrx: throttle receive requests
io_uring/zcrx: set pp memory provider for an rx queue
io_uring/zcrx: add io_recvzc request
io_uring/zcrx: dma-map area for the device
io_uring/zcrx: implement zerocopy receive pp memory provider
io_uring/zcrx: grab a net device
io_uring/zcrx: add io_zcrx_area
io_uring/zcrx: add interface queue and refill queue
net: add helpers for setting a memory provider on an rx queue
net: page_pool: add memory provider helpers
net: prepare for non devmem TCP memory providers
...
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* for-6.15/io_uring: (80 commits)
io_uring: introduce io_cache_free() helper
io_uring/rsrc: skip NULL file/buffer checks in io_free_rsrc_node()
io_uring/rsrc: avoid NULL node check on io_sqe_buffer_register() failure
io_uring/rsrc: call io_free_node() on io_sqe_buffer_register() failure
io_uring/rsrc: free io_rsrc_node using kfree()
io_uring/rsrc: split out io_free_node() helper
io_uring/rsrc: include io_uring_types.h in rsrc.h
ublk: don't cast registered buffer index to int
io_uring/nop: use io_find_buf_node()
io_uring/rsrc: declare io_find_buf_node() in header file
io_uring/ublk: report error when unregister operation fails
io_uring: convert cmd_to_io_kiocb() macro to function
io_uring/uring_cmd: specify io_uring_cmd_import_fixed() pointer type
io_uring/rsrc: use rq_data_dir() to compute bvec dir
selftests: ublk: add ublk zero copy test
selftests: ublk: add file backed ublk
selftests: ublk: add kernel selftests for ublk
io_uring: cache nodes and mapped buffers
ublk: zc register/unregister bvec
io_uring: add support for kernel registered bvecs
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Add a helper function io_cache_free() that returns an allocation to a
io_alloc_cache, falling back on kfree() if the io_alloc_cache is full.
This is the inverse of io_cache_alloc(), which takes an allocation from
an io_alloc_cache and falls back on kmalloc() if the cache is empty.
Convert 4 callers to use the helper.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Suggested-by: Li Zetao <lizetao1@huawei.com>
Link: https://lore.kernel.org/r/20250304194814.2346705-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_rsrc_node's of type IORING_RSRC_FILE always have a file attached
immediately after they are allocated. IORING_RSRC_BUFFER nodes won't be
returned from io_sqe_buffer_register()/io_buffer_register_bvec() until
they have a io_mapped_ubuf attached.
So remove the checks for a NULL file/buffer in io_free_rsrc_node().
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228235916.670437-5-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The done: label is only reachable if node is non-NULL. So don't bother
checking, just call io_free_node().
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228235916.670437-4-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_sqe_buffer_register() currently calls io_put_rsrc_node() if it fails
to fully set up the io_rsrc_node. io_put_rsrc_node() is more involved
than necessary, since we already know the reference count will reach 0
and no io_mapped_ubuf has been attached to the node yet.
So just call io_free_node() to release the node's memory. This also
avoids the need to temporarily set the node's buf pointer to NULL.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228235916.670437-3-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_rsrc_node_alloc() calls io_cache_alloc(), which uses kmalloc() to
allocate the node. So it can be freed with kfree() instead of kvfree().
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228235916.670437-2-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Split the freeing of the io_rsrc_node from io_free_rsrc_node(), for use
with nodes that haven't been fully initialized.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228235916.670437-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_uring/rsrc.h uses several types from include/linux/io_uring_types.h.
Include io_uring_types.h explicitly in rsrc.h to avoid depending on
users of rsrc.h including io_uring_types.h first.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Li Zetao <lizetao1@huawei.com>
Link: https://lore.kernel.org/r/20250301183612.937529-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_buffer_register_bvec() takes index as an unsigned int argument, but
ublk_register_io_buf() casts ub_cmd->addr (a u64) to int. Remove the
misleading cast and instead pass index as an unsigned value to
ublk_register_io_buf() and ublk_unregister_io_buf().
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250301190317.950208-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
- tegra210 div_u64 divison and max page fixes
- revert Qualcomm unavailable register workaround which is causing
regression, fixes have been proposed but still gaps are present so
revert this for now
* tag 'dmaengine-fix-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: Revert "dmaengine: qcom: bam_dma: Avoid writing unavailable register"
dmaengine: tegra210-adma: check for adma max page
dmaengine: tegra210-adma: Use div_u64 for 64 bit division
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git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy fixes from Vinod Koul:
- rockchip phy kconfig dependency fix with USB_COMMON and regression
fix for old DT
- stm32 phy overflow assertion fix
- exonysfs phy refclk masks fix and power gate on exit fix
- freescale fix for clock dividor valid range
- TI regmap syscon register fix
- tegra reset registers on init fix
* tag 'phy-fixes-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: tegra: xusb: reset VBUS & ID OVERRIDE
phy: ti: gmii-sel: Do not use syscon helper to build regmap
phy: exynos5-usbdrd: gs101: ensure power is gated to SS phy in phy_exit()
phy: freescale: fsl-samsung-hdmi: Limit PLL lock detection clock divider to valid range
phy: exynos5-usbdrd: fix MPLL_MULTIPLIER and SSC_REFCLKSEL masks in refclk
phy: stm32: Fix constant-value overflow assertion
phy: rockchip: naneng-combphy: compatible reset with old DT
phy: rockchip: fix Kconfig dependency more
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
- fix a buggy get_direction() retval check
* tag 'gpio-fixes-for-v6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpiolib: Fix Oops in gpiod_direction_input_nonotify()
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fix from Thomas Bogendoerfer:
"Fix fallout of /scripts/sorttable cleanup"
* tag 'mips-fixes_6.14_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: Ignore relocs against __ex_table for relocatable kernel
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Pull smb client fix from Steve French:
"Fix SMB1 netfs client regression"
* tag 'v6.14-rc4-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix the smb1 readv callback to correctly call netfs
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Ryan's been hard at work finding and fixing mm bugs in the arm64 code,
so here's a small crop of fixes for -rc5.
The main changes are to fix our zapping of non-present PTEs for
hugetlb entries created using the contiguous bit in the page-table
rather than a block entry at the level above. Prior to these fixes, we
were pulling the contiguous bit back out of the PTE in order to
determine the size of the hugetlb page but this is clearly bogus if
the thing isn't present and consequently both the clearing of the
PTE(s) and the TLB invalidation were unreliable.
Although the problem was found by code inspection, we really don't
want this sitting around waiting to trigger and the changes are CC'd
to stable accordingly.
Note that the diffstat looks a lot worse than it really is;
huge_ptep_get_and_clear() now takes a size argument from the core code
and so all the arch implementations of that have been updated in a
pretty mechanical fashion.
- Fix a sporadic boot failure due to incorrect randomization of the
linear map on systems that support it
- Fix the zapping (both clearing the entries *and* invalidating the
TLB) of hugetlb PTEs constructed using the contiguous bit"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: hugetlb: Fix flush_hugetlb_tlb_range() invalidation level
arm64: hugetlb: Fix huge_ptep_get_and_clear() for non-present ptes
mm: hugetlb: Add huge page size param to huge_ptep_get_and_clear()
arm64/mm: Fix Boot panic on Ampere Altra
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"All driver fixes this time:
- fix interrupt initialization sequence (npcm)
- fix frequency setting (ls2x)
- re-enable interrupts properly at irq handler's exit (amd-asf)"
* tag 'i2c-for-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: amd-asf: Fix EOI register write to enable successive interrupts
i2c: ls2x: Fix frequency division register access
i2c: npcm: disable interrupt enable bit before devm_request_irq
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Fix a regression where the enablement of the PHYs would be skipped
for device trees without any port child nodes (me)
- Revert ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives, as it stops
systems from entering lower package states. LPM works on newer
firmware versions. We will need a more refined quirk that only
targets the older firmware versions (me)
* tag 'ata-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
Revert "ata: libata-core: Add ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives"
ata: ahci: Make ahci_ignore_port() handle empty mask_port_map
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix TCR_EL2 configuration to not use the ASID in TTBR1_EL2 and not
mess-up T1SZ/PS by using the HCR_EL2.E2H==0 layout.
- Bring back the VMID allocation to the vcpu_load phase, ensuring
that we only setup VTTBR_EL2 once on VHE. This cures an ugly race
that would lead to running with an unallocated VMID.
RISC-V:
- Fix hart status check in SBI HSM extension
- Fix hart suspend_type usage in SBI HSM extension
- Fix error returned by SBI IPI and TIME extensions for unsupported
function IDs
- Fix suspend_type usage in SBI SUSP extension
- Remove unnecessary vcpu kick after injecting interrupt via IMSIC
guest file
x86:
- Fix an nVMX bug where KVM fails to detect that, after nested
VM-Exit, L1 has a pending IRQ (or NMI).
- To avoid freeing the PIC while vCPUs are still around, which would
cause a NULL pointer access with the previous patch, destroy vCPUs
before any VM-level destruction.
- Handle failures to create vhost_tasks"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: retry nx_huge_page_recovery_thread creation
vhost: return task creation error instead of NULL
KVM: nVMX: Process events on nested VM-Exit if injectable IRQ or NMI is pending
KVM: x86: Free vCPUs before freeing VM state
riscv: KVM: Remove unnecessary vcpu kick
KVM: arm64: Ensure a VMID is allocated before programming VTTBR_EL2
KVM: arm64: Fix tcr_el2 initialisation in hVHE mode
riscv: KVM: Fix SBI sleep_type use
riscv: KVM: Fix SBI TIME error generation
riscv: KVM: Fix SBI IPI error generation
riscv: KVM: Fix hart suspend_type use
riscv: KVM: Fix hart suspend status check
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This reverts commit cc77e2ce187d26cc66af3577bf896d7410eb25ab.
It was reported that adding ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives
breaks entering lower package states for certain systems.
It turns out that Samsung SSD 870 QVO actually has working LPM when using
a recent SSD firmware version.
The author of commit cc77e2ce187d ("ata: libata-core: Add ATA_QUIRK_NOLPM
for Samsung SSD 870 QVO drives") reported himself that only older SSD
firmware versions have broken LPM:
https://lore.kernel.org/stable/93c10d38-718c-459d-84a5-4d87680b4da7@debian.org/
Unfortunately, he did not specify which older firmware version he was using
which had broken LPM.
Let's revert this quirk, which has FW version field specified as NULL
(which means that it applies for all Samsung SSD 870 QVO firmware versions)
for now. Once the author reports which older firmware version(s) that are
broken, we can create a more fine grained quirk, which populates the FW
version field accordingly.
Fixes: cc77e2ce187d ("ata: libata-core: Add ATA_QUIRK_NOLPM for Samsung SSD 870 QVO drives")
Reported-by: Dieter Mummenschanz <dmummenschanz@web.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219747
Link: https://lore.kernel.org/r/20250228122603.91814-2-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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A VMM may send a non-fatal signal to its threads, including vCPU tasks,
at any time, and thus may signal vCPU tasks during KVM_RUN. If a vCPU
task receives the signal while its trying to spawn the huge page recovery
vhost task, then KVM_RUN will fail due to copy_process() returning
-ERESTARTNOINTR.
Rework call_once() to mark the call complete if and only if the called
function succeeds, and plumb the function's true error code back to the
call_once() invoker. This provides userspace with the correct, non-fatal
error code so that the VMM doesn't terminate the VM on -ENOMEM, and allows
subsequent KVM_RUN a succeed by virtue of retrying creation of the NX huge
page task.
Co-developed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
[implemented the kvm user side]
Signed-off-by: Keith Busch <kbusch@kernel.org>
Message-ID: <20250227230631.303431-3-kbusch@meta.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Lets callers distinguish why the vhost task creation failed. No one
currently cares why it failed, so no real runtime change from this
patch, but that will not be the case for long.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Message-ID: <20250227230631.303431-2-kbusch@meta.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Call io_find_buf_node() to avoid duplicating it in io_nop().
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250301001610.678223-2-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Declare io_find_buf_node() in io_uring/rsrc.h so it can be called from
other files.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250301001610.678223-1-csander@purestorage.com
[axboe: keep the inline for local hot path usage]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Indicate to userspace applications if a UBLK_IO_UNREGISTER_IO_BUF
command specifies an invalid buffer index by returning an error code.
Return -EINVAL if no buffer is registered with the given index, and
-EBUSY if the registered buffer is not a kernel bvec.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228231432.642417-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The cmd_to_io_kiocb() macro applies a pointer cast to its input without
parenthesizing it. Currently all inputs are variable names, so this has
the intended effect. But since casts have relatively high precedence,
the macro would apply the cast to the wrong value if the input was a
pointer addition, for example.
Turn the macro into a static inline function to ensure the pointer cast
is applied to the full input value.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228230305.630885-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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io_uring_cmd_import_fixed() takes a struct io_uring_cmd *, but the type
of the ioucmd parameter is void *. Make the pointer type explicit so the
compiler can type check it.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228221514.604350-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The macro rq_data_dir() already computes a request's data direction.
Use it in place of the if-else to set imu->dir.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250228223057.615284-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix the processing of DT thermal properties and the Power
Allocator thermal governor:
- Fix parsing cooling-maps in DT for trip points with more than one
cooling device (Rafael Wysocki)
- Fix granted_power computation in the Power Allocator thermal
governor and make it update total_weight on configuration changes
after the thermal zone has been registered (Yu-Che Cheng)"
* tag 'thermal-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: gov_power_allocator: Update total_weight on bind and cdev updates
thermal/of: Fix cdev lookup in thermal_of_should_bind()
thermal: gov_power_allocator: Fix incorrect calculation in divvy_up_power()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix the handling of processors that stop the TSC in deeper C-states in
the intel_idle driver (Thomas Gleixner)"
* tag 'pm-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
intel_idle: Handle older CPUs, which stop the TSC in deeper C states, correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix conflicts between devicetree and ACPI SMP discovery & setup
- Fix a warm-boot lockup on AMD SC1100 SoC systems
- Fix a W=1 build warning related to x86 IRQ trace event setup
- Fix a kernel-doc warning
* tag 'x86-urgent-2025-02-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry: Fix kernel-doc warning
x86/irq: Define trace events conditionally
x86/CPU: Fix warm boot hang regression on AMD SC1100 SoC systems
x86/of: Don't use DTB for SMP setup if ACPI is enabled
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Prevent cond_resched() based preemption when interrupts are disabled,
on PREEMPT_NONE and PREEMPT_VOLUNTARY kernels"
* tag 'sched-urgent-2025-02-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Prevent rescheduling when interrupts are disabled
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fixes from Ingo Molnar:
"Miscellaneous perf events fixes and a minor HW enablement change:
- Fix missing RCU protection in perf_iterate_ctx()
- Fix pmu_ctx_list ordering bug
- Reject the zero page in uprobes
- Fix a family of bugs related to low frequency sampling
- Add Intel Arrow Lake U CPUs to the generic Arrow Lake RAPL support
table
- Fix a lockdep-assert false positive in uretprobes"
* tag 'perf-urgent-2025-02-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
uprobes: Remove too strict lockdep_assert() condition in hprobe_expire()
perf/x86/rapl: Add support for Intel Arrow Lake U
perf/x86/intel: Use better start period for frequency mode
perf/core: Fix low freq setting via IOC_PERIOD
perf/x86: Fix low freqency setting issue
uprobes: Reject the shared zeropage in uprobe_write_opcode()
perf/core: Order the PMU list to fix warning about unordered pmu_ctx_list
perf/core: Add RCU read lock protection to perf_iterate_ctx()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
"Fix an objtool false positive, and objtool related build warnings that
happens on PIE-enabled architectures such as LoongArch"
* tag 'objtool-urgent-2025-02-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Add bch2_trans_unlocked_or_in_restart_error() to bcachefs noreturns
objtool: Fix C jump table annotations for Clang
vmlinux.lds: Ensure that const vars with relocations are mapped R/O
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fix from Ingo Molnar:
"Fix an rcuref_put() slowpath race"
* tag 'locking-urgent-2025-02-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rcuref: Plug slowpath race in rcuref_put()
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix crash from bad histogram entry
An error path in the histogram creation could leave an entry in a
link list that gets freed. Then when a new entry is added it can
cause a u-a-f bug. This is fixed by restructuring the code so that
the histogram is consistent on failure and everything is cleaned up
appropriately.
- Fix fprobe self test
The fprobe self test relies on no function being attached by ftrace.
BPF programs can attach to functions via ftrace and systemd now does
so. This causes those functions to appear in the enabled_functions
list which holds all functions attached by ftrace. The selftest also
uses that file to see if functions are being connected correctly. It
counts the functions in the file, but if there's already functions in
the file, it fails. Instead, add the number of functions in the file
at the start of the test to all the calculations during the test.
- Fix potential division by zero of the function profiler stddev
The calculated divisor that calculates the standard deviation of the
function times can overflow. If the overflow happens to land on zero,
that can cause a division by zero. Check for zero from the
calculation before doing the division.
TODO: Catch when it ever overflows and report it accordingly. For
now, just prevent the system from crashing.
* tag 'trace-v6.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ftrace: Avoid potential division by zero in function_stat_show()
selftests/ftrace: Let fprobe test consider already enabled functions
tracing: Fix bad hist from corrupting named_triggers list
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git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu fixes from Joerg Roedel:
- Intel VT-d fixes:
- Fix suspicious RCU usage splat
- Fix passthrough for devices under PCIe-PCI bridge
- AMD-Vi fix:
- Fix to preserve bits when updating device table entries
* tag 'iommu-fixes-v6.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommu/vt-d: Fix suspicious RCU usage
iommu/vt-d: Remove device comparison in context_setup_pass_through_cb
iommu/amd: Preserve default DTE fields when updating Host Page Table Root
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The Intel idle driver is preferred over the ACPI processor idle driver,
but fails to implement the work around for Core2 generation CPUs, where
the TSC stops in C2 and deeper C-states. This causes stalls and boot
delays, when the clocksource watchdog does not catch the unstable TSC
before the CPU goes deep idle for the first time.
The ACPI driver marks the TSC unstable when it detects that the CPU
supports C2 or deeper and the CPU does not have a non-stop TSC.
Add the equivivalent work around to the Intel idle driver to cure that.
Fixes: 18734958e9bf ("intel_idle: Use ACPI _CST for processor models without C-state tables")
Reported-by: Fab Stz <fabstz-it@yahoo.fr>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Fab Stz <fabstz-it@yahoo.fr>
Cc: All applicable <stable@vger.kernel.org>
Closes: https://lore.kernel.org/all/10cf96aa-1276-4bd4-8966-c890377030c3@yahoo.fr
Link: https://patch.msgid.link/87bjupfy7f.ffs@tglx
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pull block fixes from Jens Axboe:
- Fix plugging for native zone writes
- Fix segment limit settings for != 4K page size archs
- Fix for slab names overflowing
* tag 'block-6.14-20250228' of git://git.kernel.dk/linux:
block: fix 'kmem_cache of name 'bio-108' already exists'
block: Remove zone write plugs when handling native zone append writes
block: make segment size limit workable for > 4K PAGE_SIZE
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Pull io_uring fix from Jens Axboe:
"Just a single fix headed for stable, ensuring that msg_control is
properly saved in compat mode as well"
* tag 'io_uring-6.14-20250228' of git://git.kernel.dk/linux:
io_uring/net: save msg_control for compat
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
"Another couple of EFI fixes for v6.14.
Only James's patch stands out, as it implements a workaround for odd
behavior in fwupd in user space, which creates EFI variables by
touching a file in efivarfs, clearing the immutable bit (which gets
set automatically for $reasons) and then opening it again for writing,
none of which is really necessary.
The fwupd author and LVFS maintainer is already rolling out a fix for
this on the fwupd side, and suggested that the workaround in this PR
could be backed out again during the next cycle.
(There is a semantic mismatch in efivarfs where some essential
variable attributes are stored in the first 4 bytes of the file, and
so zero length files cannot exist, as they cannot be written back to
the underlying variable store. So now, they are dropped once the last
reference is released.)
Summary:
- Fix CPER error record parsing bugs
- Fix a couple of efivarfs issues that were introduced in the merge
window
- Fix an issue in the early remapping code of the MOKvar table"
* tag 'efi-fixes-for-v6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi/mokvar-table: Avoid repeated map/unmap of the same page
efi: Don't map the entire mokvar table to determine its size
efivarfs: allow creation of zero length files
efivarfs: Defer PM notifier registration until .fill_super
efi/cper: Fix cper_arm_ctx_info alignment
efi/cper: Fix cper_ia_proc_ctx alignment
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Enable zero copy on file backed target, meantime add one fio test for
covering write verify, another test for mkfs/mount/umount.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250228161919.2869102-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Add file backed ublk target code, meantime add one fio test for
covering write verify, another test for mkfs/mount/umount.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250228161919.2869102-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Both ublk driver and userspace heavily depends on io_uring subsystem,
and tools/testing/selftests/ should be the best place for holding this
cross-subsystem tests.
Add basic read/write IO test over this ublk null disk, and make sure ublk
working.
More tests will be added.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250228161919.2869102-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
i2c-host-fixes for v6.14-rc5
- npcm fixes interrupt initialization sequence.
- ls2x fixes frequency setting.
- amd-asf re-enables interrupts properly at irq handler's exit.
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The gpiod_direction_input_nonotify() function is supposed to return zero
if the direction for the pin is input. But instead it accidentally
returns GPIO_LINE_DIRECTION_IN (1) which will be cast into an ERR_PTR()
in gpiochip_request_own_desc(). The callers dereference it and it leads
to a crash.
I changed gpiod_direction_output_raw_commit() just for consistency but
returning GPIO_LINE_DIRECTION_OUT (0) is fine.
Cc: stable@vger.kernel.org
Fixes: 9d846b1aebbe ("gpiolib: check the return value of gpio_chip::get_direction()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/254f3925-3015-4c9d-aac5-bb9b4b2cd2c5@stanley.mountain
[Bartosz: moved the variable declarations to the top of the functions]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Device mapper bioset often has big bio_slab size, which can be more than
1000, then 8byte can't hold the slab name any more, cause the kmem_cache
allocation warning of 'kmem_cache of name 'bio-108' already exists'.
Fix the warning by extending bio_slab->name to 12 bytes, but fix output
of /proc/slabinfo
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250228132656.2838008-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Frequent alloc/free cycles on these is pretty costly. Use an io cache to
more efficiently reuse these buffers.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20250227223916.143006-7-kbusch@meta.com
[axboe: fix imu leak]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Provide new operations for the user to request mapping an active request
to an io uring instance's buf_table. The user has to provide the index
it wants to install the buffer.
A reference count is taken on the request to ensure it can't be
completed while it is active in a ring's buf_table.
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20250227223916.143006-6-kbusch@meta.com
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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