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4545 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
91ec203513 |
Merge tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"One of the 'small improvements all over the place' releases for us.
It's hard to draw any direct comparisons because summer vacations
disrupted our patch processing (and presumably - generation) quite a
bit.
Quick and dirty count suggests we (Paolo and I) merged a very similar
number of net (632) and net-next (648) patches. This is not telling
the full story either because 1/3 to 1/2 of the net-next patches also
*seem* like AI-driven low priority fixes, cleanups and clarifications.
We are completely overwhelmed, of course. The glimmer of hope is that
we secured sufficient LLM budget and access (thank you Meta!) to run
reviews with multiple frontier models on each patch. This eliminates
some hallucinations. That said, in terms of review, the LLMs can only
do so much.
The sad truth is that our APIs (especially for rare events like PCIe
errors, timeouts etc) have always been racy, and now LLMs don't let us
ignore that. I expect our direction for the next release will be to
tweak the reviews a little bit more, but start shifting focus to
letting the LLMs take care of the busy work - managing patchwork,
automating common process complaints, editing commit messages, and
maybe applying patches which already got "reviewed-by" tags from
people we trust...
Core & protocols:
- A few steps lowering rtnl_lock dependence:
- per-netns netdev unregistration for select SW drivers (e.g.
veth, ipvlan, tunnels)
- rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
- prepare software drivers and TC qdiscs for rtnl_lock-less GET
- Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve)
- Support buffers larger than PAGE_SIZE in devmem zero-copy API
- Improve MPTCP handling of extreme memory pressure handling, when
out-of-order queue had to be pruned
- Report the per-group user count via RTM_GETMULTICAST
- Expose the route deletion reason in RTM_DELROUTE
- Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more
useful handling of LSM denials when receiving SCM_RIGHTS messages:
instead of truncating the message at the first blocked fd, keep
every fd slot and store the LSM errno in the blocked slot
- IPv6 Segment Routing - support looking up the post-encap SID
(address) in a different/specified routing table
- Support PRP RedBox (interlink) creation
- Support per-nexthop UDP dst port in VXLAN
- Continue converting getsockopt callbacks in a number of protocols
to iov_iter
Ethernet:
- Merge initial CXL support for AMD/Solarflare NICs (shared branch
with the CXL tree)
- New drivers:
- ADIN1140 10BASE-T1S MACPHY
- Initial skeleton of Intel iXD and ZTE Dinghai drivers
- High-speed NICs:
- AMD/Pensando:
- support firmware flashing
- Cisco (enic):
- SR-IOV V2 admin channel and MBOX protocol
- Huawei (hns3):
- support for ethtool pfc_prevention_tout
- nVidia/Mellanox:
- support sharing bandwidth control across interfaces
of the same device
- Marvell (octeontx2-pf):
- link RQ page pools to netdev for Netlink stats
- Google vNIC:
- XDP metadata support for DQ RDA
- Microsoft vNIC:
- support forcing full-page RX buffers
- Other NICs:
- Synopsys IP:
- eic7700: support for eth1
- Microchip (lan743x):
- support for RMII interface
- Wangxun:
- support for ethtool -G and -C for VFs
- add Tx timeout and PCIe error handling
- Intel (igb/igc):
- RSS key get/set support
- support for forcing link speed without auto-negotiation
- Switches:
- NXP (dpaa2):
- support bonding/LAG offload
- Mediatek:
- mt7530: EN7528 support
- initial support for MT7628
- Micrel (ksz8/9):
- refactoring work to move towards library model
- PTP support for KSZ8463
- nVidia/Mellanox:
- support rtnl-lock-less ethtool callbacks
- Realtek:
- rtl8366rb: use generic RTL83xx code
- support SGMII and HSGMII for RTL8367S
- PHYs:
- Airoha:
- EcoNet EN7528 PHY support
- DAPU Telecom
- DAPU Telecom DAP8211R(I) Gigabit PHY support
- Realtek:
- support RTL8261C_CG
- support RTL8261D
Wireless:
- nl80211: per-link statistics support for multi-link operation
- mac80211: AQL/airtime-fairness support for multicast
- Merge Peripheral Authentication Service (PAS) / TEE support for
ath12k (shared branch with the firmware/qcom tree)
- New drivers:
- mm81x for Morse Micro Long-Range S1G devices
- nxpwifi for NXP devices (mostly forked off from mwifiex)
- Driver changes:
- Broadcom (brcmfmac):
- DPP support, some Cypress part update
- MediaTek (mt76):
- mt7928 support
- mt7925 NAN support
- mt7996 AP powersave improvements
- Qualcomm (ath12k):
- much kernel infrastructure integration work
- AHB platform MultiPD support
- Realtek (rt89):
- LED support
- RTL8922DE support
- dual-BT coex for RTL8922D
- Intel:
- new FW version support
Bluetooth:
- HCI: add support for Shorter Connection Interval (SCI) feature
- af_bluetooth: add minimal context analysis annotations
- Driver changes:
- Intel:
- add Bluetooth SAR revision 2 support
- add vendor_reset PCI sysfs for PLDR
- Mediatek:
- add USB IDs for MT7902 and MT7922 devices
- Realtek:
- add USB IDs for 8761CU and 8852BE devices
- NXP:
- add M.2 Bluetooth device support using pwrseq
Misc:
- DPLL support for manual/numerical oscillator control (NCO)
(implement in zl3073x)
- MCTP support for MCTP over USB v1.1 (DMTF DSP0283)
- Power-over-Ethernet: support Realtek PSE controllers
- Remove the IBM EHEA driver
- Remove tulip/xircom_cb driver"
* tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1433 commits)
net/mlx5e: do not HW-GRO coalesce small frames
net: openvswitch: fix nf_connlabels leak in ovs_ct_init
net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
net: openvswitch: fix flow mask use-after-free on flow deletion
sctp: stop processing a packet once its association is deleted
dpll: zl3073x: add PTP clock support
dpll: zl3073x: add channel ToD, phase step and TIE operations
dpll: zl3073x: scale poll interval proportionally to timeout
ptp: vmclock: prevent read-only mappings from becoming writable
ipv4: reject undersized MTUs in ip_do_fragment()
bonding: initialize err for empty target lists
net: dsa: initial support for MT7628 embedded switch
net: dsa: initial MT7628 tagging driver
net: phy: mediatek: add phy driver for MT7628 built-in Fast Ethernet PHYs
dt-bindings: net: dsa: add MT7628 ESW
net: pse-pd: realtek-pse-mcu: add UART transport
net: pse-pd: realtek-pse-mcu: add I2C transport
net: pse-pd: add Realtek PSE MCU core
dt-bindings: net: pse-pd: add bindings for Realtek PSE MCU
vsock: use sock_error() to consume sk_err after a failed connect
...
|
||
|
Linus Torvalds
|
081e5bf2a9 |
Merge tag 'trace-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Expose btf_ids to trace events
In order to allow BPF programs to attach to system call trace events
(which are actually pseudo trace events built on top of raw_syscall
events), expose the BTF ID of the events. This will allow BPF
programs better precision in attaching to events.
- Use "u64" to assign to hist_field->type
Instead of using kstrdup("u64", GFP_KERNEL) to assign the
hist_field->type, just point it to "u64" instead. The
hist_field->type is freed via kfree_const().
- Replace kmalloc()/strcpy() with kstrdup() for trace_printk
Instead of having two calls to copy the module format string, just
use kstrdup().
- Use __free() in trace event histograms and triggres where possible
- Use seq_buf in trace event code instead of strcat()
Instead of calculating the size of the buffer to use and filling it
with strcat(), use the seq_buf infrastructure that takes care of
making sure not to overflow the string size.
- Reject invalid preemptirq_delay_test CPU affinity
The preempt_delay_test module can take an invalid CPU affinity mask
and create confusing output. Simply have the module reject invalid
affinity masks.
- Prevent division by zero in ftrace_ops sample module code
If the ftrace_ops sample module code receives the module parameter
nr_function_calls set to zero, it can cause a division by zero error.
- Warn when an event dereferences a parameter in TP_printk()
On boot up and module load, the trace event TP_printk() is scanned
for possible bugs. As the TP_printk() code is executed when the user
reads the "trace" file and processes the data written when the
trace_event executed, the data it reads can be literally days old.
The scan currently checks for dereferencing printk formats like
"%pI6". But it does not check if the parameters themselves have a
dereference like:
TP_printk("offset %08x: value %08x",
(u32)(__entry->addr - __entry->edma->membase), __entry->value)
__entry represents the pointer to the event on the ring buffer. The
__entry->edma->membase is dereferencing a pointer on the ring buffer
to find membase, but the __entry->edma may no longer be a valid
pointer.
Warn on this case too.
- Replace some strcpy() with strscpy()
- Clean up mmiotrace events to use assign_type() macro
The assign_type() macro makes sure the event type is indeed the type
that is being parsed. The mmiotrace trace was written before that
macro was created so it just simply typecasted the pointer.
Replace the typecasting with the macro.
- Have the ENUM processing to numbers only process what is added
The code that converts ENUMs to their numbers in the trace events
scanned all events to do the processing. This was true when a module
was loaded too. That is, instead of processing just the events for
the module, it processed *all* events. Even the builtin ones that
were processed at boot up.
Add a check for the event->module matching mod if it is a module
before processing it.
* tag 'trace-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (21 commits)
tracing: Have trace_event_update_all() only handle module that is loading
tracing: Cleanup event_enable_trigger_parse() by using __free()
tracing: Report every TP_printk double dereference
tracing/mmiotrace: Use trace_assign_type() in mmio_print_mark()
tracing: Make per-template BTF id lists file-local
tracing: Use seq_buf for string concatenation
tracing: Use strscpy() instead of strcpy() in trace_sched_switch
tracing: Warn when an event dereferences a pointer in TP_printk()
samples/ftrace: Prevent division by zero when nr_function_calls is zero
tracing: Reject invalid preemptirq_delay_test CPU affinity
fgraph: Use trace_seq_putc() in print_graph_return()
tracing/user_events: Replace a seq_printf() call by seq_puts() in user_seq_show()
tracing/user_events: Use seq_putc() in two functions
tracing: Bound histogram expression strings with seq_buf
tracing: Return ERR_PTR() from expr_str()
tracing: Use __free() for expr_str() buffer
kernel/trace/trace_printk: Use kstrdup() instead of kmalloc() and strcpy()
tracing: Point constant hist field type to string literal
selftests/bpf: Add test for tracepoint btf_ids tracefs file
tracing: Expose tracepoint BTF ids via tracefs
...
|
||
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Linus Torvalds
|
307b9ddbbc |
Merge tag 'spi-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"Along with a lot of driver specific work we've got a couple of core
features here. The bigger one is that we've now got support for
instantiating devices from sysfs similarly to how it's already done
for I2C, this is used with development boards with non-enumerable
expansion headers since SPI devices need to be manually specified. We
also have support for the DQS signal on higher end flash devices.
- Support for instantiating devices from sysfs, useful for
development boards with non-enumerable plugin modules, from
Vishwaroop A.
- Support for DQS in spi-mem, an additional signal used by flash
devices to avoid clock skew from Miquel Raynal.
- Support for more advanced SPI modes on DesignWare controllers from
Sudip Mukherjee.
- Changes from Jisheng Zhang to update to modern methods of
specifying the PM callbacks.
- Fixes for DMA mapping error handling, plus KUnit tests for this,
from Honghui Jiang.
- Substantial cleanup and performance work in the nxp-spi driver.
- Support for Microchip LAN969x, Nuvoton MA35D1 QSPI, Qualcomm
SA8255p and SA8797P, and StarFive JHB100 SFC"
* tag 'spi-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (132 commits)
spi: Add KUnit coverage for DMA mapping error paths
spi: Clear current DMA devices when unmapping a message
spi: Move __spi_unmap_msg() before __spi_map_msg()
spi: Fix DMA mapping ownership on partial map failure
spi: dt-bindings: sun6i: Add compatibles for A733's SPI controllers
spi: ma35d1-qspi: Use the existing update helper
spi: ma35d1-qspi: Add DTR support
spi: ma35d1-qspi: Allow several command bytes
spi: ma35d1-qspi: Move speed setting to bus configuration
spi: ma35d1-qspi: Remove redundant reset operation
spi: dw: Remove shadowed dws in dw_spi_setup()
spi: img-spfi: don't disable runtime PM on DMA deferred probe
spi: mtk-nor: Propagate errors from IRQ request
spi: mtk-nor: Propagate errors from optional IRQ lookup
spi: spi-qpic-snand: Handle Macronix quad read opcode 0x6b
spi: spi-qpic-snand: add quad mode support
spi: spi-qpic-snand: move command mapping helper
spi: hisi-sfc-v3xx: Propagate errors from optional IRQ lookup
spi: meson-spifc: use devm_pm_runtime_set_active_enabled
spi: sprd-adi: Fix probe succeeding without registering the controller
...
|
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|
Linus Torvalds
|
abea5c3493 |
Merge tag 'i2c-7.3-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux
Pull i2c updates from Andi Shyti:
"The main changes are support for shared SCL lines in i2c-gpio, a
larger qcom-geni update covering tracing and transfer recovery and
support for R-Car Gen5.
The rest is mostly smaller driver, core and DT binding updates.
Core and helpers:
- support bus recovery with single-ended GPIOs
- acpi: clean up resource handling
- acpi: force ELAN1300 to 100 kHz
- algo-bit: allow consumers to skip the optional bus test
Drivers:
- use generic bus frequency definitions in nomadik, octeon-core,
microchip-corei2c, k1, davinci and pnx
- i2c-gpio: support multiple buses sharing the same SCL line
- qup: propagate clock enable failures
- spacemit: configure SCL timing and clean up clock handling
- amd-asf: guard against oversized firmware length
qcom-geni:
- add tracepoints for bus setup, interrupts and errors
- use dedicated completion events for abort and reset
- distinguish address and data NACK handling
- cancel transfers before falling back to abort
- simplify runtime PM and resource management
- refactor resource and serial engine initialization
DT bindings:
- convert Altera bindings to DT schema
- convert Axxia bindings to DT schema
New support:
- R-Car Gen5 and R-Car X5H
- Axiado AX3005
- Qualcomm Nord SA8797P
- Qualcomm SA8255p"
* tag 'i2c-7.3-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux: (33 commits)
i2c: core: support recovery for single-ended GPIOs
i2c: rcar: add R-Car Gen5 support
dt-bindings: i2c: rcar-i2c: Document R-Car X5H support
i2c: i2c-gpio: Enhance driver for buses with shared SCL
i2c: algo: bit: Allow to skip bit test
i2c: qcom-geni: Add trace events for Qualcomm GENI I2C driver
i2c: qcom-geni: trace: Add trace events for Qualcomm GENI I2C
i2c: qup: Propagate clock enable failures
i2c: qcom-geni: distinguish address-phase and data-phase NACK
i2c: qcom-geni: use dedicated completions for abort and reset events
i2c: qcom-geni: use cancel command before abort on transfer timeout
dt-bindings: i2c: cdns: add Axiado AX3005 I2C variant
i2c: qcom-geni: Use devm_pm_runtime_enable() for PM management
dt-bindings: i2c: qcom,sa8255p-geni-i2c: Add compatible for Nord SA8797P
i2c: nomadik: Use generic definitions for bus frequencies
i2c: octeon-core: Use generic definitions for bus frequencies
i2c: microchip-corei2c: Use generic definitions for bus frequencies
i2c: k1: Use generic definitions for bus frequencies
i2c: davinci: Use generic definitions for bus frequencies
i2c: pnx: Use generic definitions for bus frequencies
...
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Linus Torvalds
|
dfa35434d7 |
Merge tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futexes:
- Use runtime constants for futex_hash computation (K Prateek Nayak,
Peter Zijlstra)
- Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)
- Avoid private hash use-after-free on final put (Felix Hoffmann)
- Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)
Rust integration updates:
- Implement refcounted interrupt disable and SpinLockIrq for Rust
(Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)
- Rust sync: add helpers for mb, dma_mb and friends; add generic
memory barriers and use LKMM atomics instead of Rust atomics in the
revocable code (Gary Guo)
- Add abstraction and integrate synchronize_rcu() (Philipp Stanner)
Lock debugging:
- Add qspinlock contended_release tracepoint (Dmitry Ilvokhin, Peter
Zijlstra)
- Enable the printing of held locks of remote running tasks and print
task CPU (Ingo Molnar)
- percpu-rwsem: Annotate intentional data race in readers_active_check()
(Sun Shaojie)
Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
Naveen Kumar Chaudhary and Thomas Huth"
* tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
rust: sync: Introduce SpinLockIrq::lock_with() and friends
rust: sync: Add SpinLockIrq
rust: sync: Use super::* in spinlock.rs
rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers
rust: Introduce interrupt module
s390/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS
sched: Avoid signed comparison of preempt_count() in __cant_migrate()
sched: Remove the unused preempt_offset parameter of __cant_sleep()
locking: Switch to _irq_{disable,enable}() variants in cleanup guards
irq: Add KUnit test for refcounted interrupt enable/disable
irq,spin_lock: Add counted interrupt disabling/enabling
openrisc: Include <linux/cpumask.h> in smp.h
preempt: Introduce __preempt_count_{sub,add}_return()
preempt: Introduce HARDIRQ_DISABLE_BITS
preempt: Track NMI nesting to separate per-CPU counter
futex: Tell kmemleak we're not leaking __futex_queues
x86/paravirt: Trace contended_release on unlock
tracing/lock: Use TRACE_EVENT_FN() for contended_release
...
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Geliang Tang
|
91424c4513 |
mptcp: remove unused data_ack from struct mptcp_ext
The data_ack and data_ack32 fields in struct mptcp_ext are no longer used anywhere. Remove them from the structure and update mptcp_dump_mpext() trace helper accordingly. Drop the data_ack field from the trace entry and the corresponding output in TP_printk(). Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20260812-net-next-mptcp-misc-feat-7-3-v1-2-1905a818f6cb@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
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3da8c3c8b8 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.2-rc8). No conflicts. Adjacent changes: drivers/net/ethernet/wangxun/ngbe/ngbe_main.c |
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Gao Xiang
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949eb95d5b |
cachefiles,netfs: sunset ondemand mode
It was an effort to enhance fscache as a kernel cache for lazy pulling (at least according to previous Incremental FS discussion [1]) and EROFS over fscache was the in-tree user of this mode. fscache has since evolved to be netfslib-oriented, serving network filesystem inodes via the netfs library, but EROFS never acts as a network filesystem and we need to cache golden filesystem images rather than individual EROFS inodes. Since EROFS over fscache is now removed, clean up netfs/fscache/ cachefiles upstream too. [1] https://lore.kernel.org/r/CAOQ4uxi4dzxArY24YO=+kBCK2gGoq3Ptb8WkzCqSogPgU_R3dQ@mail.gmail.com [dh] Fixed up comments on: https://sashiko.dev/#/patchset/20260716103030.3065561-1-dhowells%40redhat.com https://sashiko.dev/#/patchset/20260722130218.78958-1-dhowells%40redhat.com Signed-off-by: Gao Xiang <xiang@kernel.org> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://patch.msgid.link/1046393.1786544127@warthog.procyon.org.uk cc: Paulo Alcantara <pc@manguebit.org> cc: netfs@lists.linux.dev cc: linux-erofs@lists.ozlabs.org cc: bpf@vger.kernel.org cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org> |
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Dmitry Ilvokhin
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b359800c69 |
tracing/lock: Use TRACE_EVENT_FN() for contended_release
queued_spin_unlock() gates its contended_release trace call behind a static branch, so a NOP sits on the unlock path even while the tracepoint is disabled. Removing that requires replacing the unlock implementation only while contended_release is enabled, which needs a callback when the tracepoint is toggled. Convert contended_release to TRACE_EVENT_FN() and add weak no-op arch_contended_release_trace_reg()/arch_contended_release_trace_unreg() hooks. The default hooks are empty, so this is a no-op until an architecture overrides them. No functional change intended. Signed-off-by: Dmitry Ilvokhin <d@ilvokhin.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Juergen Gross <jgross@suse.com> Link: https://patch.msgid.link/1c2fcccfb584c075c02890c484f22c76a1948bf1.1785778551.git.d@ilvokhin.com |
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Linus Torvalds
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6c68fa601b |
Merge tag 'for-7.2-rc6-fixup-worker-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull Btrfs Fixes 2: Electric Boogaloo from David Sterba: "This brings back the fixup worker infrastructure. It's a mechanism to detect pages/folios that are marked dirty without filesystem knowledge and require COW fixup. The consequence of not doing so is silent data loss. The first patch covers the scenarios in detail, also reflecting folio API port and subpage block size support added in recent years. The original fixup worker was only for pages. The patch is relatively big, half of the code is debugging and support code, the rest is the core design around the detection and fix. The second patch handles an unlikely case when there's work left during unmount" * tag 'for-7.2-rc6-fixup-worker-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: flush the fixup workers during close_ctree btrfs: trigger cow fixup via dirty_folio() |
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Mykyta Yatsenko
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d5b201ed4f |
tracing: Make per-template BTF id lists file-local
DECLARE_EVENT_CLASS emitted __bpf_trace_btf_ids_<call> through
BTF_ID_LIST_GLOBAL, i.e. a global symbol named after the event class.
The class name is not unique across the kernel, so the symbol
multiply-defines whenever two translation units instantiate the same
class.
Switch to the file-local BTF_ID_LIST: the list is reached
only through the event_class_<call>.btf_ids pointer, initialised in the
same unit, so tracefs readers never reference the symbol by name and
resolve_btfids still fills the now-local .BTF_ids entries.
The handcrafted syscall classes are the one cross-unit consumer: give
them their own local BTF_ID_LIST rather than importing the generated
sys_{enter,exit} lists.
Link: https://patch.msgid.link/20260730-b4-fix_btf_tracefs-v2-1-6b66da8dc103@meta.com
Fixes:
|
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Boris Burkov
|
0680cbbf39 |
btrfs: trigger cow fixup via dirty_folio()
The problem scenario:
If we have a folio mmapped shared and then somebody does a dio read with
that folio as the read destination, then it is possible that the dio
will see a dirty destination page when it starts (and thus skip
dirtying and just GUP pin it) but then while it is doing the read, btrfs
finishes writing it back and by the endio, the folio is clean. In that
case, the dio read must re-dirty the folio with aops->dirty_folio():
btrfs_check_read_bio()
|- __iomap_dio_bio_end_io() from btrfs_bio_end_io()
|- bio_check_pages_dirty()
|- bio_dirty_fn()
|- bio_release_pages(bio, true)
|- __bio_release_pages(bio, mark_dirty == true)
|- folio_lock()
|- folio_mark_dirty()
|- aops->dirty_folio()
|- folio_unlock()
A data block normally moves through writeback as follows:
TASK
folio_lock
write clean -> dirty bit + delalloc
folio_unlock
WRITEBACK
for-each-dirty-folio:
folio_lock
run_delalloc delalloc consumed -> dirty bit + OE
submission dirty bit consumed -> writeback bit + OE
folio_unlock
ENDIO
endio OE bytes accounted
OE finish writeback -> clean; destroy OE
Three critical invariants that this path maintains are:
I1. Any dirty block is covered by delalloc xor an ordered extent
I2. Any dirty block covered by an OE will be submitted into that OE
I3. Any dirty block already submitted into an OE will not be submitted
again into the same OE.
These ensure that the block will be written exactly once. It is clear
that not reserving delalloc for the re-dirty case violates I1.
This situation, even without bs < folio_size, has long required btrfs to
fixup such dirty pages during writeback with an asynchronous worker that
is allowed to do this expensive work and writeback does not proceed for
a folio while it is doing this work.
Commit
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Praveen Talari
|
f40e7ab049 |
soc: qcom: geni-se: trace: Add trace event support for GENI SE registers dump
Diagnosing GENI SE-based driver (serial, SPI, I2C) failures currently requires reading each hardware register individually, either through ad hoc debug code or a debugger. This is slow, requires the state to remain stable across the multiple reads, and cannot be run non-intrusively during normal operation without adding printk-style noise to each driver. Add a new trace event header for the Qualcomm GENI Serial Engine (SE) framework providing a geni_se_regs tracepoint. This tracepoint captures a comprehensive snapshot of the GENI SE hardware state in a single trace record, making it possible to correlate register values at a precise point in time without multiple sequential reads. The trace event records the following register groups: - Main/secondary command and IRQ status (M_CMD0, S_CMD0, M/S_IRQ_STATUS) - Engine status, IOS, and command control/error registers - TX/RX FIFO status and watermark registers (including RFR watermark) - M/S GP length registers - DMA TX/RX IRQ, enable, length, pointer, attribute, and burst registers - DMA interface enable, general config, QSB trans config, and debug - M/S IRQ enable, GSI event enable, and top-level SE IRQ enable - Serial master/slave clock config, general config, output control, clock control RO, FIFO interface disable, and FW multilock MSA - Clock select register Having all these registers captured atomically in a single ftrace record allows drivers built on top of the GENI SE framework (serial, SPI, I2C) to invoke this tracepoint on error paths and reconstruct the full engine state during post-mortem analysis without instrumenting each driver separately. Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com> Link: https://patch.msgid.link/20260729-add-tracepoints-for-se-reg-dump-v4-1-08bbd63b0ed2@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Praveen Talari
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d3de2edd75 |
i2c: qcom-geni: trace: Add trace events for Qualcomm GENI I2C
Add trace event support to the Qualcomm GENI I2C driver to enable detailed runtime debugging and analysis. The trace events capture I2C clock configuration, interrupt status and error code and message. Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260703-add-tracepoints-for-qcom-geni-i2c-v2-1-e8bf8b178290@oss.qualcomm.com |
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Mykyta Yatsenko
|
eadc0725ab |
tracing: Expose tracepoint BTF ids via tracefs
Add events/<sys>/<event>/btf_ids, a per-template file that exposes
the BTF ids resolve_btfids fills in for each tracepoint:
btf_obj_id BTF object owning the ids below
raw_btf_id FUNC_PROTO of __bpf_trace_<call> (named args), consumed
by raw_tp / tp_btf BPF programs
tp_btf_id trace_event_raw_<call> ring-buffer record, consumed by
classic BPF_PROG_TYPE_TRACEPOINT programs
DECLARE_EVENT_CLASS now emits a 2-entry BTF_ID_LIST (FUNC __bpf_trace_*
and STRUCT trace_event_raw_*) and stores the pointer in
trace_event_class.
Per-syscall events under syscalls/ share the handcrafted classes
event_class_syscall_{enter,exit} instead of going through
DECLARE_EVENT_CLASS. Wire those classes to the BTF id lists
generated for sys_enter / sys_exit so all ~700 per-syscall
events expose the shared dispatcher prototype and record.
The per-syscall events do not own their own tracepoint
(they share sys_enter/sys_exit), so raw_btf_id is reported as 0
on those events; the meaningful raw_btf_id is exposed on
raw_syscalls/sys_{enter,exit}/btf_ids where raw_tp / tp_btf
programs can actually attach.
Link: https://patch.msgid.link/20260518-generic_tracepoint-v2-2-b755a5cf67bb@meta.com
Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Jakub Kicinski
|
89d8006259 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.2-rc5). Conflicts: drivers/net/amt.c |
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Alice Mikityanska
|
5329647dad |
net: Use helpers to get/set UDP len tree-wide
Since BIG TCP for UDP tunnels will start using len=0 in the UDP header as an indicator of a GSO packet bigger than 65535 bytes, this commit introduces the following getter and setters to use tree-wide, in order to explicitly mark places where len=0 may be expected, and handle them properly: 1. udp_set_len() sets uh->len to its real value if it's not bigger than 65535, and to 0 otherwise: to be used in GSO context with aggregated packets. 2. udp_set_len_short() is to be used when the length is known to fit 16 bits. It WARNs when the caller tries to assign a bigger value if CONFIG_DEBUG_NET=y. 3. udp_get_len_short() returns len in host byte order: to be used on the RX side to deal with non-aggregated packets, or to access the raw value of the len field. 4. udp_get_len() decodes uh->len set by udp_set_len(). It checks whether the packet is GSO to guard from malformed packets. At the moment udp_set_len() is not used, a following commit will start using it after enabling len>65535 for GSO. Raw uh->len (in network byte order) is still accessed in a few places for checksum calculation purposes, and to decode len=0 in udpv6_rcv for jumbograms. udp_rcv and udpv6_rcv will be addressed by the commit that starts using udp_set_len() to set UDP len=0 for BIG TCP packets in UDP tunnels. Signed-off-by: Alice Mikityanska <alice@isovalent.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Link: https://patch.msgid.link/20260710134242.216538-2-alice.kernel@fastmail.im Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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Xie Yuanbin
|
e57d6e9e20 |
mm/memory-failure: trace: change memory_failure_event to ras subsystem
Commit |
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Linus Torvalds
|
5422e496b3 |
Merge tag 'ceph-for-7.2-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov: "This adds support for manual client session reset in CephFS, allowing operators to get out of tricky livelock situations involving caps and file locks without evicting the problematic client instance on the MDS side or rebooting the client node both of which can be disruptive" * tag 'ceph-for-7.2-rc1' of https://github.com/ceph/ceph-client: ceph: add manual reset debugfs control and tracepoints ceph: add client reset state machine and session teardown ceph: add diagnostic timeout loop to wait_caps_flush() ceph: harden send_mds_reconnect and handle active-MDS peer reset ceph: use proper endian conversion for flock_len in reconnect ceph: convert inode flags to named bit positions and atomic bitops rbd: switch to dynamic root device |
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Linus Torvalds
|
09ca8dc7d6 |
Merge tag 'f2fs-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim: "The changes primarily focus on filesystem error reporting, reducing memory footprint by reverting in-memory data structures used for runtime validation, honoring FDP hints, and adding trace and debug logs. In addition, there are critical bug fixes resolving out-of-bounds read vulnerabilities in inline directory and ACL handling, potential deadlocks in balance_fs, use-after-free issues in atomic writes, and false data/node type assignments in large sections. Enhancements: - Revert in-memory sit version and block bitmaps - support to report fserror - add trace_f2fs_fault_report - add iostat latency tracking for direct IO - add logs in f2fs_disable_checkpoint() - honor per-I/O write streams for direct writes - map data writes to FDP streams - skip inode folio lookup for cached overwrite - skip direct I/O iostat context when disabled - revert "check in-memory block bitmap" - revert "check in-memory sit version bitmap" Fixes: - optimize representative type determination in GC - fix incorrect FI_NO_EXTENT handling in __destroy_extent_node() - fix potential deadlock in f2fs_balance_fs() - fix potential deadlock in gc_merge path of f2fs_balance_fs() - atomic: fix UAF issue on f2fs_inode_info.atomic_inode - fix missing read bio submission on large folio error - pass correct iostat type for single node writes - fix to do sanity check on f2fs_get_node_folio_ra() - validate orphan inode entry count - keep atomic write retry from zeroing original data - read COW data with the original inode during atomic write - validate inline dentry name lengths before conversion - validate dentry name length before lookup compares it - reject setattr size changes on large folio files - revert "remove non-uptodate folio from the page cache in move_data_block" - validate ACL entry sizes in f2fs_acl_from_disk() - bound i_inline_xattr_size for non-inline-xattr inodes - fix listxattr handling of corrupted xattr entries - fix to round down start offset of fallocate for pin file" * tag 'f2fs-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (42 commits) f2fs: fix to round down start offset of fallocate for pin file f2fs: fix listxattr handling of corrupted xattr entries f2fs: skip direct I/O iostat context when disabled f2fs: remove unneeded f2fs_is_compressed_page() f2fs: avoid unnecessary fscrypt_finalize_bounce_page() f2fs: avoid unnecessary sanity check on ckpt_valid_blocks f2fs: misc cleanup in f2fs_record_stop_reason() f2fs: fix wrong description in printed log f2fs: bound i_inline_xattr_size for non-inline-xattr inodes f2fs: validate ACL entry sizes in f2fs_acl_from_disk() Revert "f2fs: remove non-uptodate folio from the page cache in move_data_block" f2fs: Split f2fs_write_end_io() f2fs: Rename f2fs_post_read_wq into f2fs_wq f2fs: Prepare for supporting delayed bio completion f2fs: reject setattr size changes on large folio files f2fs: validate dentry name length before lookup compares it f2fs: validate inline dentry name lengths before conversion f2fs: read COW data with the original inode during atomic write f2fs: skip inode folio lookup for cached overwrite f2fs: keep atomic write retry from zeroing original data ... |
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Linus Torvalds
|
a1a8bab741 |
Merge tag 'mm-stable-2026-06-23-08-55' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton: - "khugepaged: add mTHP collapse support" (Nico Pache) Provide khugepaged with the capability to collapse anonymous memory regions to mTHPs - "Remove CONFIG_READ_ONLY_THP_FOR_FS and enable file THP for writable files" (Zi Yan) Remove the READ_ONLY_THP_FOR_FS check in file_thp_enabled(), so that khugepaged and MADV_COLLAPSE can run on filesystems with PMD THP pagecache support even without READ_ONLY_THP_FOR_FS enabled - "make MM selftests more CI friendly" (Mike Rapoport) General fixes and cleanups to the MM selftests. Also move more MM selftests under the kselftest framework, making them more amenable to ongoing CI testing - "selftests/mm: fix failures and robustness improvements" and "selftests/mm: assorted fixes for hmm-tests" (Sayali Patil) Fix several issues in MM selftests which were revealed by powerpc 64k pagesize * tag 'mm-stable-2026-06-23-08-55' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (118 commits) Revert "mm: limit filemap_fault readahead to VMA boundaries" mm/vmscan: pass NULL to trace vmscan node reclaim mm: use mapping_mapped to simplify the code selftests/mm: fix exclusive_cow test fork() handling selftests/mm: remove hardcoded THP sizing assumptions in hmm tests selftests/mm: allow PUD-level entries in compound testcase of hmm tests mm/gup_test: reject wrapped user ranges mm/page_frag: reject invalid CPUs in page_frag_test mm/damon/core: always put unsuccessfully committed target pids mm: page_isolation: avoid unsafe folio reads while scanning compound pages mm/shrinker: do not hold RCU lock in shrinker_debugfs_count_show() selftests: mm: fix and speedup "droppable" test mm: merge writeout into pageout MAINTAINERS: add Hao Ge as reviewer for codetag and alloc_tag selftests/mm: clarify alternate unmapping in compaction_test selftests/mm: move hwpoison setup into run_test() and silence modprobe output for memory-failure category selftests/mm: skip uffd-stress test when nr_pages_per_cpu is zero selftests/mm: skip uffd-wp-mremap if UFFD write-protect is unsupported selftests/mm: ensure destination is hugetlb-backed in hugetlb-mremap selftest/mm: register existing mapping with userfaultfd in hugetlb-mremap ... |
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Linus Torvalds
|
502d801f0a |
Merge tag 'erofs-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"The most notable change is the removal of the fscache backend: it has
been deprecated for almost two years, mainly because EROFS file-backed
mounts and fanotify pre-content hooks (together with erofs-utils) now
provide better functionality and simpler codebase. In addition,
fscache has depended on netfslib for years, which is undesirable for
EROFS since it is a local filesystem. More details in [1].
In addition, sparse support has been added to the pcluster layout,
which is helpful for large sparse AI datasets, and map requests for
chunk-based inodes have been optimized to be more efficient as well.
There are also the usual fixes and cleanups.
Summary:
- Report more consecutive chunks of the same type for
each iomap request
- Add sparse support for the pcluster layout
- Update the EROFS documentation overview
- Remove the deprecated fscache backend
- Various fixes and cleanups"
Link: https://lore.kernel.org/r/20260622013622.934174-1-hsiangkao@linux.alibaba.com [1]
* tag 'erofs-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: handle 48-bit blocks_hi for compressed inodes
erofs: remove fscache backend entirely
erofs: simplify RCU read critical sections
erofs: add sparse support to pcluster layout
erofs: add folio order to trace_erofs_read_folio
erofs: introduce erofs_map_chunks()
erofs: call erofs_exit_ishare() before rcu_barrier()
erofs: update the overview of the documentation
erofs: clean up erofs_ishare_fill_inode()
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Alex Markuze
|
7e1f9e2cd2 |
ceph: add manual reset debugfs control and tracepoints
Add the debugfs and trace plumbing used to trigger and observe manual client reset. The reset interface exposes a trigger file for operator-initiated reset and a status file for tracking the most recent run. The tracepoints record scheduling, completion, and blocked caller behavior so reset progress can be diagnosed from the client side. debugfs layout under /sys/kernel/debug/ceph/<client>/reset/: trigger - write to initiate a manual reset status - read to see the most recent reset result The reset directory is cleaned up via debugfs_remove_recursive() on the parent, so individual file dentries are not stored. Tracepoints: ceph_client_reset_schedule - reset queued ceph_client_reset_complete - reset finished (success or failure) ceph_client_reset_blocked - caller blocked waiting for reset ceph_client_reset_unblocked - caller unblocked after reset All tracepoints use a null-safe access for monc.auth->global_id to guard against early-init or late-teardown edge cases. Signed-off-by: Alex Markuze <amarkuze@redhat.com> Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com> Signed-off-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> |
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|
liujinbao1
|
f6b2456603 |
f2fs: Add trace_f2fs_fault_report
Add trace_f2fs_fault_report to trigger reporting upon f2fs_bug_on, need_fsck, stop_checkpoint, and handle_eio. Since f2fs_bug_on and need_fsck can be triggered in hundreds of scenarios, define set_sbi_flag as a macro to help capture the effective fault function and line number. Signed-off-by: shengyong1 <shengyong1@xiaomi.com> Signed-off-by: liujinbao1 <liujinbao1@xiaomi.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
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|
Linus Torvalds
|
8a500fd093 |
Merge tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH: "Here is the big set of TTY and Serial driver updates for 7.2-rc1. Overall we end up removing more code than added, due to an obsolete synclink_gt driver being removed from the tree, always a nice thing to see happen. Other than that driver removal, major things included in here are: - max310x serial driver updates and fixes - 8250 driver updates and rework in places to make it more "modern" - dts file updates - serial driver core tweaks and updates - vt code cleanups - vc_screen crash fixes - other minor driver updates and cleanups All of these have been in linux-next for well over a week with no reported issues" * tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (49 commits) serial: 8250_pci: Don't specify conflicting values to pci_device_id members vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write serial: qcom_geni: Fix RX DMA stall when SE_DMA_RX_LEN_IN is zero vt: merge ucs_is_zero_width()/ucs_is_double_width() into ucs_get_width() serial: 8250: fix possible ISR soft lockup dt-bindings: serial: rs485: remove deprecated .txt binding stub serial: qcom-geni: trace: Add tracepoint support for Qualcomm GENI serial tty: serial: Use named initializers for arrays of i2c_device_data serial: 8250_dw: remove clock-notifier infrastructure serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails amba/serial: amba-pl011: Bring back zx29 UART support serial: 8250: Add support for console flow control serial: 8250: Check LSR timeout on console flow control serial: 8250: Set cons_flow on port registration tty: serial: 8250: protect against NULL uart->port.dev in register arm64: dts: add support for A9 based Amlogic BY401 dt-bindings: arm: amlogic: add A311Y3 support serial: max310x: fix compile errors if CONFIG_SPI_MASTER is disabled serial: qcom-geni: Avoid probing debug console UART without console support serial: max310x: add comments for PLL limits ... |
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|
Nico Pache
|
ceaa0b6413 |
mm/khugepaged: improve tracepoints for mTHP orders
Add the order to the mm_collapse_huge_page<_swapin,_isolate> tracepoints to give better insight into what order is being operated at for. Link: https://lore.kernel.org/20260605161422.213817-10-npache@redhat.com Signed-off-by: Nico Pache <npache@redhat.com> Reviewed-by: Lorenzo Stoakes <ljs@kernel.org> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> Acked-by: David Hildenbrand (Arm) <david@kernel.org> Reviewed-by: Lance Yang <lance.yang@linux.dev> Cc: Alistair Popple <apopple@nvidia.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Bagas Sanjaya <bagasdotme@gmail.com> Cc: Barry Song <baohua@kernel.org> Cc: Brendan Jackman <jackmanb@google.com> Cc: Byungchul Park <byungchul@sk.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: David Rientjes <rientjes@google.com> Cc: Dev Jain <dev.jain@arm.com> Cc: Gregory Price <gourry@gourry.net> Cc: "Huang, Ying" <ying.huang@linux.alibaba.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Jann Horn <jannh@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Joshua Hahn <joshua.hahnjy@gmail.com> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Liam R. Howlett <liam@infradead.org> Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Nanyong Sun <sunnanyong@huawei.com> Cc: Pedro Falcato <pfalcato@suse.de> Cc: Peter Xu <peterx@redhat.com> Cc: Rafael Aquini <raquini@redhat.com> Cc: Rakie Kim <rakie.kim@sk.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Shivank Garg <shivankg@amd.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Takashi Iwai (SUSE) <tiwai@suse.de> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Usama Arif <usamaarif642@gmail.com> Cc: Usama Arif <usama.arif@linux.dev> Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Will Deacon <will@kernel.org> Cc: Yang Shi <yang@os.amperecomputing.com> Cc: Zach O'Keefe <zokeefe@google.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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|
Linus Torvalds
|
a552c81ff4 |
Merge tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "selftests/mm: clean up build output and verbosity" (Li Wang)
Remove some noise from the MM selftests build
- "mm: Free contiguous order-0 pages efficiently" (Ryan Roberts)
Speed up the freeing of a batch of 0-order pages by first scanning
them for coalescing opportunities. This is applicable to vfree() and
to the releasing of frozen pages
- "mm/damon: introduce DAMOS failed region quota charge ratio"
(SeongJae Park)
Address a DAMOS usability issue: The DAMOS quota often exhausts
prematurely because it charges for all memory attempted, causing slow
and inconsistent performance when actions fail on unreclaimable
memory.
To fix this, a new feature lets users set a smaller, flexible quota
charge ratio (via a numerator and denominator) for failed regions.
Since failed actions cause less overhead, reducing their quota cost
ensures more predictable and efficient DAMOS processing
- "selftests/cgroup: improve zswap tests robustness and support large
page sizes" (Li Wang)
Fix various spurious failures and improves the overall robustness of
the cgroup zswap selftests
- "fix MAP_DROPPABLE not supported errno" (Anthony Yznaga)
Fix an issue in the mlock selftests on arm32
- "mm: huge_memory: clean up defrag sysfs with shared" (Breno Leitao)
Some maintenance work in the huge_memory code
- "treewide: fixup gfp_t printks" (Brendan Jackman)
Use the special vprintf() gfp_t conversion in various places
- "mm: Fix vmemmap optimization accounting and initialization" (Muchun
Song)
Fix several bugs in the vmemmap optimization, mainly around incorrect
page accounting and memmap initialization in the DAX and memory
hotplug paths. It also fixes pageblock migratetype initialization and
struct page initialization for ZONE_DEVICE compound pages
- "mm/damon: repost non-hotfix reviewed patches in damon/next tree"
A sprinkle of unrelated minor bugfixes for DAMON
- "mm: remove page_mapped()" (David Hildenbrand)
Remove this function from the tree, replacing it with folio_mapped()
- "mm/damon: let DAMON be paused and resumed" (SeongJae Park)
Allow DAMON to be paused and resumed without losing its current state
- "kasan: hw_tags: Disable tagging for stack and page-tables" (Muhammad
Usama Anjum)
Simplify and speed up kasan by removing its ineffective tagging of
stacks and page tables
- "mm/damon/reclaim,lru_sort: monitor all system rams by default"
(SeongJae Park)
Simplify deployment on diverse hardware like NUMA systems by updating
DAMON_RECLAIM and DAMON_LRU_SORT to automatically monitor the
physical address range covering all System RAM areas by default,
replacing the overly restrictive behavior that only targeted the
single largest memory block to save on negligible overhead
- "mm/damon/sysfs: document filters/ directory as deprecated" (SeongJae
Park)
Update some DAMON docs
- "mm: use spinlock guards for zone lock" (Dmitry Ilvokhin)
Switch zone->lock handling over to using the guard() mechanisms
- "mm/filemap: tighten mmap_miss hit accounting" (fujunjie)
Fix a flaw where the mmap_miss counter over-credited page cache hits
during fault-arounds and page-fault retries. This results in
significant reduction of redundant synchronous mmap readahead I/O,
drastically cutting down execution time and gigabytes read for sparse
random or strided memory access workloads
- "selftests/cgroup: Fix false positive failures in test_percpu_basic"
(Li Wang)
Fix a couple of false-positives in the cgroup kmem selftests
- "mm/damon/reclaim: support monitoring intervals auto-tuning"
(SeongJae Park)
Add a new parameter to DAMON permitting DAMON_RECLAIM to
automatically tune DAMON's sampling and aggregation intervals
- "mm/damon/stat: add kdamond_pid parameter" (SeongJae Park)
Change DAMON_STAT to provide the pid of its kdamond
- "mm/kmemleak: dedupe verbose scan output" (Breno Leitao)
Remove large amounts of duplicated backtraces from the verbose-mode
kmemleak output
- "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)" (David
Hildenbrand)
Reduce our use of CONFIG_HAVE_BOOTMEM_INFO_NODE, with a view to
removing it entirely in a later series
- "mm/damon: validate min_region_size to be power of 2" (Liew Rui Yan)
Prevent users from passing a non-power-of-2 value of `addr_unit', as
this later results in undesirable behavior
- "mm: document read_pages and simplify usage" (Frederick Mayle)
- "tools/mm/page-types: Fix misc bugs" (Ye Liu)
Fix three issues in tools/mm/page-types.c
- "mm: misc cleanups from __GFP_UNMAPPED series" (Brendan Jackman)
Implement several cleanups in the page allocator and related code
- "mm, swap: swap table phase IV: unify allocation" (Kairui Song)
Unify the allocation and charging of anon and shmem swap in folios,
provides better synchronization, consolidates the metadata
management, hence dropping the static array and map, and improves
performance
- "mm/damon: introduce data attributes monitoring" (SeongJae Park(
Extend DAMON to monitor general data attributes other than accesses
- "mm/vmalloc: free unused pages on vrealloc() shrink" (Shivam Kalra)
Implement the TODO in vrealloc() to unmap and free unused pages when
shrinking across a page boundary
- "mm/damon: documentation and comment fixes" (niecheng)
- "remove mmap_action success, error hooks" (Lorenzo Stoakes)
Eliminate custom hooks from mmap_action by removing the problematic
success_hook which allowed drivers to improperly access uninitialized
VMAs. It replaces the error_hook with a simple error-code field and
updates the memory char driver accordingly
- "mm/damon: minor improvements for code readability and tests"
(SeongJae Park)
- "mm/damon: fix macro arguments and clarify quota goals doc" (Maksym
Shcherba)
- "userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c" (Mike
Rapoport)
- "mm/mglru: improve reclaim loop and dirty folio" (Kairui Song and
others)
Clean up and slightly improves MGLRU's reclaim loop and dirty
writeback handling. Large performance improvements are measured
- "use vma locks for proc/pid/{smaps|numa_maps} reads" (Suren
Baghdasaryan)
Use per-vma locks when reading /proc/pid/smaps and numa_maps similar
to reduce contention on central mmap_lock
- "refactors thpsize_shmem_enabled_store() and thpsize_shmem_enabled_show()"
(Ran Xiaokai)
Some cleanup work in the THP code
- "selftests/memfd: fix compilation warnings" (Konstantin Khorenko)
Fix a few build glitches in the memfd selftest code.
- "memcg: shrink obj_stock_pcp and cache multiple objcgs" (Shakeel
Butt)
Resolve a 68% performance regression caused by NUMA-node cache
thrashing around struct obj_stock_pcp by shrinking its existing
fields and expanding it into a multi-slot array that caches up to
five obj_cgroup pointers per CPU, allowing per-node variants of the
same memcg to coexist within a single 64-byte cache line.
- "zram: writeback fixes" (Sergey Senozhatsky)
address a couple of unrelated zram writeback issues
- "mm: switch THP shrinker to list_lru" (Johannes Weiner)
Resolve NUMA-awareness issues and streamlines callsite interaction by
refactoring and extending the list_lru API to completely replace the
complex, open-coded deferred split queue for Transparent Huge Pages
- "mm: improve large folio readahead for exec memory" (Usama Arif)
Improve large-folio readahead on systems like 64K-page arm64 by
preventing the mmap_miss check from permanently disabling
target-oriented VM_EXEC readahead, and by generalizing the
force_thp_readahead gate to support mappings with any usefully large
maximum folio order under the cache cap.
- "userfaultfd/pagemap: pre-existing fixes" (Kiryl Shutsemau)
Fix a bunch of minor issues in the userfaultfd/pagemap, all of which
were flagged by Sashiko review of proposed new material
- "mm/sparse-vmemmap: Provide generic vmemmap_set_pmd() and
vmemmap_check_pmd()" (Muchun Song)
Provide generic versions of these two functions so the four
arch-specific implementations can be removed.
- "mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap
device" (Youngjun Park)
Address a uswsusp-vs-swapoff race and reduces the swap device
reference taking/releasing frequency.
- "mm/hmm: A fix and a selftest" (Dev Jain)
* tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
selftests/mm/hmm-tests: test pagemap reads of PMD device-private entries
fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
lib/test_hmm: check alloc_page_vma() return value and handle OOM
mm/compaction: cap compact_gap() at COMPACT_CLUSTER_MAX
mm/swap: remove redundant swap device reference in alloc/free
mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap device
mm/filemap: use folio_next_index() for start
vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()
sparc/mm: drop vmemmap_check_pmd helper and use generic code
loongarch/mm: drop vmemmap_check_pmd helper and use generic code
riscv/mm: drop vmemmap_pmd helpers and use generic code
arm64/mm: drop vmemmap_pmd helpers and use generic code
mm/sparse-vmemmap: provide generic vmemmap_set_pmd() and vmemmap_check_pmd()
rust: page: mark Page::nid as inline
userfaultfd: build __VMA_UFFD_FLAGS from config-gated masks
userfaultfd: gate must_wait writability check on pte_present()
mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade
fs/proc/task_mmu: fix hugetlb self-deadlock in pagemap_scan_pte_hole()
fs/proc/task_mmu: use huge_page_size() in pagemap_scan_hugetlb_entry()
fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race
...
|
||
|
Linus Torvalds
|
83f1454877 |
Merge tag 'ext4_for_linus-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
- A major rework of the fast commit mechanism to avoid lock contention
and deadlocks. We also export snapshot statistics in
/proc/fs/ext4/*/fc_info
- Performance optimization for directory hash computation by processing
input in 4-byte chunks and removing function pointers, along with new
KUnit tests for directory hash
- Cleanups in JBD2 to remove special slabs and use kmalloc() instead
- Various bug fixes, including:
- Early validation of donor superblock in EXT4_IOC_MOVE_EXT to
avoid cross-fs deadlock
- Fix for a kernel BUG in ext4_write_inline_data_end under
data=journal
- Fix for a NULL dereference in jbd2_journal_dirty_metadata when
handle is aborted
- Fix for an underflow in JBD2 fast commit block initialization
check
- Fix for LOGFLUSH shutdown ordering to ensure ordered data
writeback
- Miscellaneous fixes for error path return values and KUnit
assertions
* tag 'ext4_for_linus-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: validate donor file superblock early in EXT4_IOC_MOVE_EXT
ext4: fix kernel BUG in ext4_write_inline_data_end
ext4: fix ERR_PTR(0) in ext4_mkdir()
jbd2: remove special jbd2 slabs
ext4: remove mention of PageWriteback
ext4: improve str2hashbuf by processing 4-byte chunks and removing function pointers
ext4: add Kunit coverage for directory hash computation
ext4: fast commit: export snapshot stats in fc_info
ext4: fast commit: add lock_updates tracepoint
ext4: fast commit: avoid i_data_sem by dropping ext4_map_blocks() in snapshots
ext4: fast commit: avoid self-deadlock in inode snapshotting
ext4: fast commit: avoid waiting for FC_COMMITTING
ext4: lockdep: handle i_data_sem subclassing for special inodes
ext4: fast commit: snapshot inode state before writing log
jbd2: fix integer underflow in jbd2_journal_initialize_fast_commit()
ext4: fix fast commit wait/wake bit mapping on 64-bit
jbd2: check for aborted handle in jbd2_journal_dirty_metadata()
ext4: Use %pe to print PTR_ERR()
ext4: fix LOGFLUSH shutdown ordering to allow ordered-mode data writeback
ext4: replace KUnit tests for memcmp() with KUNIT_ASSERT_MEMEQ()
|
||
|
Zhan Xusheng
|
28c5d23098 |
erofs: add folio order to trace_erofs_read_folio
erofs supports large folios for reads, but the actual folio order instantiated in the page cache may be lower due to allocation constraints such as memory fragmentation. trace_erofs_read_folio already receives the folio being read but currently records only its index. Add folio_order() to the tracepoint so that users can observe the realized folio order and verify the effectiveness of large folio reads. Also drop the uptodate field: read_folio() is only called for a non-uptodate folio, so it is always 0. Suggested-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Zhan Xusheng <zhanxusheng@xiaomi.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> |
||
|
Linus Torvalds
|
4b99990cdf |
Merge tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
"Highlights:
- xe: add initial CRI platform support
- amdgpu: initial HDMI 2.1 FRL support
- rust: add some new type concepts for device lifetimes
- scheduler: moves to a fair algorithm and lots of cleanups
But it's mostly the usual mountain of changes across the board.
core:
- add docbook for DRM_IOCTL_SYNCOBJ_EVENTFD
- change signature of drm_connector_attach_hdr_output_metadata_property
- dedup counter and timestamp retrieval in vblank code
- parse AMD VSDB v3 in CTA extension blocks
- add P230, Y7, XYYY2101010, T430, XVUY210101010 formats
- don't call drop master on file close if not master
- use drm_printf_indent in atomic / bridge
- fix 32b format descriptions
- docs: fix toctree
- hdmi: add common TMDS character rates
- fix drm_syncobj_find_fence leak
rust:
- introduce Higher-Ranked lifetime types
- replace drvdata with scoped registration data
- add GPUVM immediate mode abstraction for rust GPU drivers
- introduce DeviceContext type state for drm::Device
bridge:
- clarify drm_bridge_get/put
- create drm_get_bridge_by_endpoint and use it
- analogix_dp: add panel probing
- ite-it6211 - use drm audio hdmi helpers
buddy:
- add lockdep annotations
dp:
- add PR and VRR updates
- mst: fix buffer overflows
- add Adaptive Sync SDP decoding support
- fix OOB reads in dp-mst
ttm:
- bump fpfn/lpfn to 64-bit
scheduler:
- change default to fair scheduler
- map runqueue 1:1 with scheduler
dma-buf:
- port selftests to kunit
- convert dma-buf system/heap allocators to module
- add separate DMABUF_HEAPS_SYSTEM_CC_SHARED Kconfig
udmabuf:
- revert hugetlb support
- fix error with CONFIG_DMA_API_DEBUG
dma-fence:
- fix tracepoints lifetime
- remove unused signal on any support
ras:
- add clear error counter netlink command to drm ras
gpusvm:
- reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges
- use IOVA allocations
pagemap:
- use IOVA allocations
panels:
- update to use ref counts
- add support for CSW PNB601LS1-2, LGD LP116WHA-SPB1
- add support for waveshare panels
- CMN N116BCN-EA1, CMN N140HCA-EEK, IVO M140NWFQ R5,
- IVO, R140NWFW R0, BOE NT140*, BOE NV133FHM-N4F,
- AUO B140*, AUO B133HAN06.6 and AUO B116XTN02.3 eDP panels
- Surface Pro 12 Panel
xe:
- add CRI PCI-IDs
- debugfs add multi-lrc info
- engine init cleanup
- PF fair scheduling auto provisioning
- system controller support for CRI/Xe3p
- PXP state machine fixes
- Reset/wedge/unload corner case fixes
- Wedge path memory allocation fixes
- PAT type cleanups
- Reject unsafe PAT for CPU cached memory
- OA improvements for CRI device memory
- kernel doc syntax in xe headers
- xe_drm.h documentation fixes
- include guard cleanups
- VF CCS memory pool
- i915/xe step unification
- Xe3p GT tuning fixes
- forcewake cleanup in GT and GuC
- admin-only PF mode
- enable hwmon energy attributes for CRI
- enable GT_MI_USER_INTERRUPT
- refactor emit functions
- oa workarounds
- multi_queue: allow QUEUE_TIMESTAMP register
- convert stolen memory to ttm range manager
- use xe2 style blitter as a feature flag
- make drm_driver const
- add/use IRQ page to HW engine definition
- fix oops when display disabled
i915:
- enable PIPEDMC_ERROR interrupt
- more common display code refactoring
- restructure DP/HDMI sink format handling
- eliminate FB usage from lowlevel pinning code
- panel replay bw optimization
- integrate sharpness filter into the scaler
- new fb_pin abstraction for xe/i915 fb transparent handling
- skip inactive MST connectors on HDCP
- start switching to display specific registers
- use polling when irq unavailable
- Adaptive-sync SDP prep
amdgpu:
- use drm_display_info for AMD VSDB data
- Initial HDMI 2.1 FRL support
- Initial DCN 4.2.1 support
- GART fixes for non-4k pages
- GC 11.5.6/SDMA 6.4.0/and other new IPs
- GFX9/DCE6/Hawaii/SDMA4/GART/Userq fixes
- Finish support for using multiple SDMA queues for TTM operations
- SWSMU updates
- GC 12.1 updates
- SMU 15.0.8 updates
- DCN 4.2 updates
- DC type conversion fixes
- Enable DC power module
- Replay/PSR updates
- SMU 13.x updates
- Compute queue quantum MQD updates
- ASPM fix
- Align VKMS with common implementation
- DC analog support fixes
- UVD 3 fixes
- TCC harvesting fixes for SI
- GC 11 APU module reload fix
- NBIO 6.3.2 support
- IH 7.1 updates
- DC cursor fixes
- VCN/JPEG user fence fixes
- DC support for connectors without DDC
- Prefer ROM BAR for default VGA device
- DC bandwidth fixes
- Add PTL support for profiler
- Introduce dc_plane_cm and migrate surface update color path
- Add FRL registers for HDMI 2.1
- Restructure VM state machine
- Auxless ALPM support
- GEM_OP locking/warning fixes
- switch to system_dfl_wq
amdkfd:
- GPUVM TLB flush fix
- Hotplug fix
- Boundary check fixes
- SVM fixes
- CRIU fixes
- add profiler API
- MES 12.1 updates
msm:
- core:
- fix shrinker documentation
- IFPC enabled for gen8
- PERFCNTR_CONFIG ioctl support
- GPU:
- reworked UBWC handling
- a810 support
- MDSS:
- add support for Milos platform
- reworked UBWC handling
- DisplayPort:
- reworked HPD handling as prep for MST
- DPU:
- Milos platform support
- reworked UBWC handling
- DSI:
- Milos platform support
nova:
- Hopper/Blackwell enablement (GH100/GB100/GB202)
- FSP support
- 32-bit firmware support
- HAL functions
- refactor GSP boot/unload
- GA100 support
- VBIOS hardening/refactoring
- Adopt higher order lifetime types
tyr:
- define register blocks
- add shmem backed GEM objects
- adopt higher order lifetime types
- move clock cleanup into Drop
radeon:
- Hawaii SMU fixes
- CS parser fix
- use struct drm_edid instead of edid
amdxdna:
- export per-client BO memory via fdinfo
- AIE4 device support
- support medium/lower power modes
- expandable device heap support
- revert read-only user-pointer BO mappings
ivpu:
- support frequency limiting
panthor:
- enable GEM shrinker support
- add eviction and reclaim info to fdinfo
v3d:
- enable runtime PM
mgag200:
- support XRGB1555 + C8
ast:
- support XRGB1555 + C8
- use constants for lots of registers
- fix register handling
imagination:
- fence handling refactoring
nouveau:
- fix sched double call
- expose VBIOS on GSP-RM systems
- add GA100 support
virtio:
- add VIRTIO_GPU_F_BLOB_ALIGNMENT flag
- add deferred mapping support
gud:
- add RCade Display Adapter
hibmc:
- fix no connectors usage
mediatek:
- hdmi: convert error handling
- simplify mtk_crtc allocation
exynos:
- move fbdev emulation to drm client buffers
- use drm format helpers for geometry/size
- adopt core DMA tracking
- fix framebuffer offset handling
renesas:
- add RZ/T2H SOC support
versilicon:
- add cursor plane support
tegra:
- use drm client for framebuffer"
* tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel: (1731 commits)
dma-buf: move system_cc_shared heap under separate Kconfig
accel/amdxdna: Clear sva pointer after unbind
agp/amd64: Fix broken error propagation in agp_amd64_probe()
accel/amdxdna: Require carveout when PASID and force_iova are disabled
drm/amdkfd: always resume_all after suspend_all
drm/amdgpu/gfx: move fault and EOP IRQ get/put to hw_init/hw_fini
drm/amd/display: Consult MCCS FreeSync cap only if requested & supported
drm/amd/pm: Use strscpy in profile mode parsing
drm/amdkfd: Fix infinite loop parsing CRAT with zero subtype length
drm/amdkfd: fix sysfs topology prop length on buffer truncation
drm/amdgpu: drop retry loop in amdgpu_hmm_range_get_pages
drm/amd/pm: bound OD parameter parsing to stack array size
drm/amd/pm: Stop pp_od_clk_voltage emit at PAGE_SIZE
drm/amdkfd: Unwind debug trap enable on copy_to_user failure
drm/amdgpu: validate the mes firmware version for gfx12.1
drm/amdgpu: validate the mes firmware version for gfx12
drm/amdgpu: compare MES firmware version ucode for gfx11
drm/amdkfd: Add bounds check for AMDKFD_IOC_WAIT_EVENTS
drm/amdgpu: restart the CS if some parts of the VM are still invalidated
drm/amd/display: use unsigned types for local pipe and REG_GET counters
...
|
||
|
Linus Torvalds
|
9c87e61e3c |
Merge tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
"Major changes:
- Recover from BPF arena page faults using a scratch page and add
ptep_try_set() for lockless empty-slot installs on x86 and arm64.
This allows BPF kfuncs to access arena pointers directly.
The 'arena_direct_access' stable branch was created for this work
and was pulled into sched-ext and bpf-next trees (Tejun Heo, Kumar
Kartikeya Dwivedi)
- Lift old restriction and support 6+ arguments in BPF programs and
kfuncs on x86 and arm64 (Yonghong Song, Puranjay Mohan)
Other features and fixes:
- Add 24-bit BTF vlen and reclaim unused bits in the BTF UAPI to ease
addition of new BTF kinds (Alan Maguire)
- Raise the maximum BPF call chain depth from 8 to 16 frames (Alexei
Starovoitov)
- Refactor object relationship tracking in the verifier and fix a
dynptr use-after-free bug (Amery Hung)
- Harden the signed program loader and reject exclusive maps as inner
maps (Daniel Borkmann)
- Replace the verifier min/max bounds fields with a circular number
(cnum) representation and improve 32->64 bit range refinements
(Eduard Zingerman)
- Introduce the arena library and runtime (libarena) with a buddy
allocator, rbtree and SPMC queue data structures, ASAN support and
a parallel test harness. Allow subprograms to return arena pointers
and switch to a BTF type-tag based __arena annotation (Emil
Tsalapatis)
- Cache build IDs in the sleepable stackmap path and avoid faultable
build ID reads under mm locks (Ihor Solodrai)
- Introduce the tracing_multi link to attach a single BPF program to
many kernel functions at once. Allow specifying the uprobe_multi
target via FD (Jiri Olsa)
- Extend the bpf_list family of kfuncs with bpf_list_add/del(), and
bpf_list_is_first/is_last/empty() (Kaitao Cheng)
- Extend the BPF syscall with common attributes support for
prog_load, btf_load and map_create (Leon Hwang)
- Wrap rhashtable as BPF map (Mykyta Yatsenko, Herbert Xu)
- Add sleepable support for tracepoint programs and fix deadlocks in
LRU map due to NMI reentry (Mykyta Yatsenko)
- Fix OOB access in bpf_flow_keys, fix nullness analysis of inner
arrays, enforce write checks for global subprograms (Nuoqi Gui)
- Report the maximum combined stack depth and print a breakdown of
instructions processed per subprogram (Paul Chaignon)
- Add an XDP load-balancer benchmark and arm64 JIT support for stack
arguments (Puranjay Mohan)
- Add kfuncs to traverse over wakeup_sources (Samuel Wu)
- Allow sleepable BPF programs to use LPM trie maps directly (Vlad
Poenaru)
- Many more fixes and cleanups across the verifier, BTF, sockmap,
devmap, bpffs, security hooks, s390/riscv/loongarch JITs,
rqspinlock, libbpf, bpftool, selftests"
* tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (336 commits)
selftests/bpf: Work around llvm stack overflow in crypto progs
selftests/bpf: add test for bpf_msg_pop_data() overflow
bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check
sockmap: Fix use-after-free in udp_bpf_recvmsg()
bpf, sockmap: keep sk_msg copy state in sync
bpf, sockmap: Fix wrong rsge offset in bpf_msg_push_data()
bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data()
selftsets/bpf: Retry map update on helper_fill_hashmap()
selftests/bpf: Add test for sleepable lsm_cgroup rejection
selftests/bpf: Add test to verify the fix for bpf_setsockopt() helper
bpf: Fix bpf_get/setsockopt to tos for ipv4-mapped ipv6 socket
selftests/bpf: Avoid static LLVM linking for cross builds
selftests/bpf: Use common CFLAGS for urandom_read
selftests/bpf: Initialize operation name before use
tools/bpf: build: Append extra cflags
libbpf: Initialize CFLAGS before including Makefile.include
bpftool: Append extra host flags
bpftool: Avoid adding EXTRA_CFLAGS to HOST_CFLAGS
bpftool: Pass host flags to bootstrap libbpf
selftests/bpf: correct CONFIG_PPC64 macro name in comment
...
|
||
|
Linus Torvalds
|
b85966adbf |
Merge tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Work on removing rtnl_lock protection throughout the stack
continues. In this chapter:
- don't use rtnl_lock for IPv6 multicast routing configuration
- don't take rtnl_lock in ethtool for modern drivers
- prepare Qdisc dump callbacks for rtnl_lock removal
- Support dumping just ifindex + name of all interfaces, under RCU.
It's a common operation for Netlink CLI tools (when translating
names to ifindexes) and previously required full rtnl_lock.
- Support dumping qdiscs and page pools for a specific netdev. Even
tho user space wants a dump of all netdevs, most of the time, the
OOO programming model results in repeating the dump for each
netdev. Which, in absence of a cache, leads to a O(n^2) behavior.
- Flush nexthops once on multi-nexthop removal (e.g. when device goes
down), another O(n^2) -> O(n) improvement.
- Rehash locally generated traffic to a different nexthop on
retransmit timeout.
- Honor oif when choosing nexthop for locally generated IPv6 traffic.
- Convert TCP Auth Option to crypto library, and drop non-RFC algos.
- Increase subflow limits in MPTCP to 64 and endpoint limit to 256.
- Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
to selectively skip reporting of the standard TCP Timestamp option,
because they won't fit into the header space together (12 + 30 >
40).
- Support using bridge neighbor suppression, Duplicate Address
Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
deployments, e.g. VXLAN fabrics (IPv4 and IPv6).
- Improve link state reporting for upper netdevs (e.g. macvlan) over
tunnel devices (again, mostly for EVPN deployments).
- Support binding GENEVE tunnels to a local address.
- Speed up UDP tunnel destruction (remove one synchronize_rcu()).
- Support exponential field encoding in multicast (IGMPv3 and MLDv2).
- Support attaching PSP crypto offload to containers (veth, netkit).
- Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
migrating individual IPsec SAs independently of their policies.
The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
migration, lacks SPI for unique SA identification, and cannot
express reqid changes or migrate Transport mode selectors.
The new interface identifies the SA via SPI and mark, supports
reqid changes, address family changes, encap removal, and uses an
atomic create+install flow under x->lock to prevent SN/IV reuse
during AEAD SA migration.
- Implement GRO/GSO support for PPPoE.
- Convert sockopt callbacks in a number of protocols to iov_iter.
Cross-tree stuff:
- Remove support for Crypto TFM cloning (unblocked after the TCP Auth
Option rework). This feature regressed performance for all crypto
API users, since it changed crypto transformation objects into
reference-counted objects.
- Add FCrypt-PCBC implementation to rxrpc and remove it from the
global crypto API as obsolete and insecure.
Wireless:
- Major rework of station bandwidth handling, fixing issues with
lower capability than AP.
- Cleanups for EMLSR spec issues (drafts differed).
- More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
schedule improvements, multi-station etc.)
- Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
(e.g. non-primary channel access, UHR DBE support).
- Fine Timing Measurement ranging (i.e. distance measurement) APIs.
Netfilter:
- Use per-rule hash initval in nf_conncount. This avoids unnecessary
lock contention with short keys (e.g. conntrack zones) in different
namespaces.
- Various safety improvements, both in packet parsing and object
lifetimes. Notably add refcounts to conntrack timeout policy.
Deletions:
- Remove TLS + sockmap integration. TLS wants to pin user pages to
avoid a copy, and sockmap wants to write to the input stream. More
work on this integration is clearly needed, and we can't find any
users (original author admitted that they never deployed it).
- Remove support for TLS offload with TCP Offload Engine (the far
more common opportunistic offload is retained). The locking looks
unfixable (driver sleeps under TCP spin locks) and people from the
vendor that added this are AWOL.
- Remove more ATM code, trying to leave behind only what PPPoATM
needs, AAL5 and br2684 with permanent circuits.
- Remove AppleTalk. Let it join hamradio in our out of tree protocol
graveyard, I mean, repository.
- Disable 32-bit x_tables compatibility (32bit binaries on 64bit
kernel) interface in user namespaces. To be deleted completely,
soon.
- Remove 5/10 MHz support from cfg80211/mac80211.
Drivers:
- Software:
- Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit)
- bonding: add knob to strictly follow 802.3ad for link state
- New drivers:
- Alibaba Elastic Ethernet Adaptor (cloud vNIC).
- NXP NETC switch within i.MX94.
- DPLL:
- Add operational state to pins (implement in zl3073x).
- Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).
- Ethernet high-speed NICs:
- Huawei (hinic3):
- enhance tc flow offload support with queue selection,
tunnels
- nVidia/Mellanox:
- avoid over-copying payload to the skb's linear part (up to
60% win for LRO on slow CPUs like ARM64 V2)
- expose more per-queue stats over the standard API
- support additional, unprivileged PFs in the DPU
configuration
- support Socket Direct (multi-PF) with switchdev offloads
- add a pool / frag allocator for DMA mapped buffers for
control objects, save memory on systems with 64kB page size
- take advantage of the ability to dynamically change RSS
table size, even when table is configured by the user
- increase the max RSS table size for even traffic
distribution
- Ethernet NICs:
- Marvell/Aquantia:
- AQC113 PTP support
- Realtek USB (r8152):
- support 10Gbit Link Speeds and Energy-Efficient Ethernet
(EEE)
- support firmware loaded (for RTL8157/RTL8159)
- support for the RTL8159
- Intel (ixgbe):
- support Energy-Efficient Ethernet (EEE) on E610 devices
- Ethernet switches:
- Airoha:
- support multiple netdevs on a single GDM block / port
- Marvell (mv88e6xxx):
- support SERDES of mv88e6321
- Microchip (ksz8/9):
- rework the driver callbacks to remove one indirection layer
- Motorcomm (yt921x):
- support port rate policing
- support TBF qdisc offload
- support ACL/flower offload
- nVidia/Mellanox:
- expose per-PG rx_discards
- Realtek:
- rtl8365mb: bridge offloading and VLAN support
- Ethernet PHYs:
- Airoha:
- support Airoha AN8801R Gigabit PHYs.
- Micrel:
- implement 3 low-loss cable tunables
- Realtek:
- support MDI swapping for RTL8226-CG
- support MDIO for RTL931x
- Qualcomm:
- at803x: Rx and Tx clock management for IPQ5018 PHY
- Motorcomm:
- support YT8522 100M RMII PHY
- set drive strength in YT8531s RGMII
- TI:
- dp83822: add optional external PHY clock
- Bluetooth:
- hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
- SMP: use AES-CMAC library API
- Intel:
- support Product level reset
- support smart trigger dump
- Mediatek:
- add event filter to filter specific event
- Realtek:
- fix RTL8761B/BU broken LE extended scan
- WiFi:
- Broadcom (b43):
- new support for a 11n device
- MediaTek (mt76):
- support mt7927
- mt792x: broken usb transport detection
- mt7921: regulatory improvements
- Qualcomm (ath9k):
- GPIO interface improvements
- Qualcomm (ath12k):
- WDS support
- replace dynamic memory allocation in WMI Rx path
- thermal throttling/cooling device support
- 6 GHz incumbent interference detection
- channel 177 in 5 GHz
- Realtek (rt89):
- RTL8922AU support
- USB 3 mode switch for performance
- better monitor radiotap support
- RTL8922DE preparations"
* tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1778 commits)
ipv4: fib_rule: Move fib4_rules_exit() to ->exit().
net: serialize netif_running() check in enqueue_to_backlog()
net: skmsg: preserve sg.copy across SG transforms
appletalk: move the protocol out of tree
appletalk: stop storing per-interface state in struct net_device
selftests/bpf: test that TLS crypto is rejected on a sockmap socket
selftests/bpf: drop the unused kTLS program from test_sockmap
selftests/bpf: remove sockmap + ktls tests
tls: remove dead sockmap (psock) handling from the SW path
tls: reject the combination of TLS and sockmap
atm: remove orphaned uAPI for deleted drivers, protocols and SVCs
atm: remove unused ATM PHY operations
atm: remove the unused pre_send and send_bh device operations
atm: remove the unused change_qos device operation
atm: remove SVC socket support and the signaling daemon interface
atm: remove the local ATM (NSAP) address registry
atm: remove dead SONET PHY ioctls
atm: remove the unused send_oam / push_oam callbacks
atm: remove AAL3/4 transport support
net: dsa: sja1105: fix lastused timestamp in flower stats
...
|
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|
Linus Torvalds
|
ba9c792c82 |
Merge tag 'for-7.2/block-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- Per-controller admin and IO timeout sysfs attributes, and
letting the block layer set request timeouts (Maurizio,
Maximilian)
- Multipath passthrough iostats, and PCI P2PDMA enablement for
multipath devices (Keith, Kiran)
- A new diag sysfs attribute group exporting per-controller
counters (retries, multipath failover, error counters, requeue
and failure counts, reset and reconnect events) (Nilay)
- FDP configuration validation and bounds check fixes (liuxixin)
- Various nvmet fixes, including a pre-auth out-of-bounds read in
the Discovery Get Log Page handler, auth payload bounds
validation, and tcp error-path leak fixes (Bryam, Tianchu,
Geliang)
- nvme-tcp lockdep and workqueue fixes (Shin'ichiro, Kuniyuki,
Eric)
- Assorted other fixes and cleanups (John, Yao, Chao, Mateusz,
Achkinazi, Wentao)
- MD pull request via Yu Kuai:
- raid1/raid10 fixes for a deadlock in the read error recovery
path, error-path detection and bio accounting with cloned bios,
and an nr_pending leak in the REQ_ATOMIC bad-block error path
(Abd-Alrhman)
- PCI P2PDMA propagation from member devices to the RAID device
(Kiran)
- dm-raid bio requeue fix, and various smaller fixes and cleanups
(Benjamin, Chen, Li, Thorsten)
- Enable Clang lock context analysis for the block layer, with the
accompanying annotations across queue limits, the blk_holder_ops
callbacks, crypto, cgroup, iocost, kyber and mq-deadline (Bart)
- Block status code infrastructure work: a tagged status table, a
str_to_blk_op() helper, a bio_endio_status() helper, and on top of
that a new configurable block-layer error injection facility
(Christoph)
- DRBD netlink rework, replacing the genl_magic machinery with explicit
netlink serialization and moving the DRBD UAPI headers to
include/uapi/linux/ (Christoph Böhmwalder)
- bvec improvements: a bvec_folio() helper and making the bvec_iter
helpers proper inline functions (Willy, Christoph)
- ublk cleanups and a canceling-flag fix for the disk-not-allocated
case (Caleb, Ming)
- Partition handling fixes: bound the AIX pp_count scan, fix an of_node
refcount leak, and replace __get_free_page() with kmalloc() (Bryam,
Wentao, Mike)
- Convert numa_node to int in blk_mq_hw_ctx and ->init_request, and add
WQ_PERCPU to the block workqueue users (Mateusz, Marco)
- Block statistics and tracing: propagate in-flight to the whole disk
on partition IO, export passthrough stats, and a new
block_rq_tag_wait tracepoint (Tang, Keith, Aaron)
- A round of removals, unexports and cleanups across bio, direct-io and
the bvec helpers (Christoph)
- Various driver fixes (mtip32xx use-after-free, rbd snap_count
validation and strscpy conversion, nbd socket lockdep reclassify,
virtio-blk zone report clamp, floppy) and a batch of MAINTAINERS
email/list updates (Coly, Li, Yu, Christoph Böhmwalder)
- Other little fixes and cleanups all over
* tag 'for-7.2/block-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (117 commits)
MAINTAINERS: Update Coly Li's email address
block: check bio split for unaligned bvec
nbd: Reclassify sockets to avoid lockdep circular dependency
block: add configurable error injection
block: add a str_to_blk_op helper
block: add a "tag" for block status codes
block: add a macro to initialize the status table
floppy: Drop unused pnp driver data
block: propagate in_flight to whole disk on partition I/O
virtio-blk: clamp zone report to the report buffer capacity
block: optimize I/O merge hot path with unlikely() hints
drivers/block/rbd: Use strscpy() to copy strings into arrays
partitions: aix: bound the pp_count scan to the ppe array
block: Enable lock context analysis
block/mq-deadline: Make the lock context annotations compatible with Clang
block/Kyber: Make the lock context annotations compatible with Clang
block/blk-mq-debugfs: Improve lock context annotations
block/blk-iocost: Inline iocg_lock() and iocg_unlock()
block/blk-iocost: Split ioc_rqos_throttle()
block/crypto: Annotate the crypto functions
...
|
||
|
Linus Torvalds
|
31b706da2c |
Merge tag 'for-7.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"The most noticeable change is to enable large folios by default, it's
been in testing for a few releases. Related to that is huge folio
support (still under experimental config). Otherwise a few ioctl
updates, performance improvements and usual fixes and core changes.
User visible changes:
- enable large folios by default, added in 6.17 (under experimental
build), no feature limitations, a big change internally
- new ioctl to return raw checksums to userspace (a bit tricky given
compression and tail extents), can be used for mkfs and
deduplication optimizations
- provide stable UUID for e.g. overlayfs and temp_fsid, also
reflected in statvfs() field f_fsid, internal dev_t is hashed in to
allow cloning
- add 32bit compat version of GET_SUBVOL_INFO ioctl
- in experimental build, support huge folios (up to 2M)
Performance related improvements/changes:
- limit bio size to the estimated optimum derived from the queue,
this prevents build up of too much data for writeback, which could
cause latency spikes (reported improvement 15% on sequential
writes)
- don't force direct IO to be serialized, forgotten change during
mount API port, brings back +60% of throughput
- lockless calculation of number of shrinkable extent maps, improve
performance with many memcg allocated objects
Notable fixes:
- in zoned mode, fix a deadlock due to zone reclaim and relocation
when space needs to be flushed
- don't trim device which is internally not tracked as writeable
(e.g. when missing device is being rescanned)
- fix deadlock when cloning inline extent and mounted with
flushoncommit
- fix false IO failures after direct IO falls back to buffered write
in some cases
Core:
- remove COW fixup mechanism completely; detect and fix changes to
pages outside of filesystem tracking, guaranteed since 5.8, grace
period is over
- remove 2K block size support, experimental to test subpage code on
x86_64 but now it would block folio changes
- tree-checker improvements of:
- free-space cache and tree items
- root reference and backref items
- extent state exceptions in reloc tree
- subpage mode updates:
- code optimizations, simplify tracking bitmaps
- re-enable readahead of compressed extent
- extend bitmap size to cover huge folios
- add tracepoints related to sync, tree-log and transactions
- device stats item tracking unification, remove item if there are no
stats recorded, also don't leave stale stats on replaced device
- allow extent buffer pages to be allocated as movable, to help page
migration
- added checks for proper extent buffer release
- btrfs.ko code size reduction due to transaction abort call
simplifications
- several struct size reductions
- more auto free conversions
- more verbose assertions"
* tag 'for-7.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (130 commits)
btrfs: fix use-after-free after relocation failure with concurrent COW
btrfs: move WARN_ON on unexpected error in __add_tree_block()
btrfs: move locking into btrfs_get_reloc_bg_bytenr()
btrfs: lzo: reject compressed segment that overflows the compressed input
btrfs: retry faulting in the pages after a zero sized short direct write
btrfs: fix incorrect buffered IO fallback for append direct writes
btrfs: fix false IO failure after falling back to buffered write
btrfs: use verbose assertions in backref.c
btrfs: print a message when a missing device re-appears
btrfs: do not trim a device which is not writeable
btrfs: return real error after lookup failure in btrfs_ioctl_default_subvol()
btrfs: use mapping shared locking for reading super block
btrfs: use lockless read in nr_cached_objects shrinker callback
btrfs: switch local indicator variables to bools
btrfs: send: pass bool for pending_move and refs_processed parameters
btrfs: use shifts for sectorsize and nodesize
btrfs: fix deadlock cloning inline extent when using flushoncommit
btrfs: allocate eb-attached btree pages as movable
btrfs: add 32-bit compat ioctl for BTRFS_IOC_GET_SUBVOL_INFO
btrfs: derive f_fsid from on-disk fsid and dev_t
...
|
||
|
Linus Torvalds
|
c41cfae42c |
Merge tag 'spi-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This has been quite a busy release, mainly due to the subsystem wide
work Johan Hovold has done to modernise resource allocation for the
subsystem on probe, the subsystem did some very clever allocation
management pre devm which didn't quite mesh comfortably with managed
allocations and made it far too easy to introduce error handling and
removal bugs.
- Cleanup and simplification of controller struct allocation, moving
everything over to devm and making the devm APIs more robust, from
Johan Hovold
- Support for spi-mem devices that don't assert chip select and
support for a secondary read command for memory mapped flashes,
some commits for this are shared with mtd.
- Support for SpacemiT K1"
* tag 'spi-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (118 commits)
spi: Fix mismatched DT property access types
spi: xilinx: use FIFO occupancy register to determine buffer size
spi: spi-mem: Fix spi_controller_mem_ops kdoc
spi: xilinx: let transfers timeout in case of no IRQ
spi: dt-bindings: nuvoton,npcm750-fiu: Convert to DT schema
spi: meson-spifc: fix runtime PM leak on remove
spi: Use named initializers for platform_device_id arrays
spi: rzv2h-rspi: Add suspend/resume support
spi: dw-pci: remove redundant pci_free_irq_vectors() calls
spi: ep93xx: fix double-free of zeropage on DMA setup failure
spi: cadence-xspi: Revert COMPILE_TEST support
spi: cadence-xspi: Support 32bit and 64bit slave dma interface
spi: tegra210-quad: Allocate DMA memory for DMA engine
spi: imx: replace dmaengine_terminate_all() with dmaengine_terminate_sync()
spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
spi: fsl-lpspi: replace dmaengine_terminate_all() with dmaengine_terminate_sync()
spi: atmel: fix DMA channel and bounce buffer leaks
spi: omap2-mcspi: Use of_device_get_match_data()
spi: Use named initializers for arrays of i2c_device_data
spi: aspeed: Replace VLA parameter with flat pointer in calibration helper
...
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|
Linus Torvalds
|
764e77d868 |
Merge tag 'locking-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futex updates:
- Optimize futex hash bucket access patterns (Peter Zijlstra)
- Large series to address the robust futex unlock race for real, by
Thomas Gleixner:
"The robust futex unlock mechanism is racy in respect to the
clearing of the robust_list_head::list_op_pending pointer because
unlock and clearing the pointer are not atomic.
The race window is between the unlock and clearing the pending op
pointer. If the task is forced to exit in this window, exit will
access a potentially invalid pending op pointer when cleaning up
the robust list.
That happens if another task manages to unmap the object
containing the lock before the cleanup, which results in an UAF.
In the worst case this UAF can lead to memory corruption when
unrelated content has been mapped to the same address by the time
the access happens.
User space can't solve this problem without help from the kernel.
This series provides the kernel side infrastructure to help it
along:
1) Combined unlock, pointer clearing, wake-up for the
contended case
2) VDSO based unlock and pointer clearing helpers with a
fix-up function in the kernel when user space was interrupted
within the critical section.
... with help by André Almeida:
- Add a note about robust list race condition (André Almeida)
- Add self-tests for robust release operations (André Almeida)
Context analysis updates:
- Implement context analysis for 'struct rt_mutex'. (Bart Van Assche)
- Bump required Clang version to 23 (Marco Elver)
Guard infrastructure updates:
- Series to remove NULL check from unconditional guards (Dmitry
Ilvokhin)
Lockdep updates:
- Restore self-test migrate_disable() and sched_rt_mutex state on
PREEMPT_RT (Karl Mehltretter)
Membarriers updates:
- Use per-CPU mutexes for targeted commands (Aniket Gattani)
- Modernize membarrier_global_expedited with cleanup guards (Aniket
Gattani)
- Add rseq stress test for CFS throttle interactions (Aniket Gattani)
percpu-rwsems updates:
- Extract __percpu_up_read() to optimize inlining overhead (Dmitry
Ilvokhin)
Seqlocks updates:
- Allow UBSAN_ALIGNMENT to fail optimizing (Heiko Carstens)
Lock tracing:
- Add contended_release tracepoint to sleepable locks such as
mutexes, percpu-rwsems, rtmutexes, rwsems and semaphores (Dmitry
Ilvokhin)
MAINTAINERS updates:
- MAINTAINERS: Add RUST [SYNC] entry (Boqun Feng)
Misc updates and fixes by Randy Dunlap, YE WEI-HONG, Fabricio Parra,
Dmitry Ilvokhin and Peter Zijlstra"
* tag 'locking-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (36 commits)
locking: Add contended_release tracepoint to sleepable locks
locking/percpu-rwsem: Extract __percpu_up_read()
tracing/lock: Remove unnecessary linux/sched.h include
futex: Optimize futex hash bucket access patterns
rust: sync: completion: Mark inline complete_all and wait_for_completion
MAINTAINERS: Add RUST [SYNC] entry
cleanup: Specify nonnull argument index
selftests: futex: Add tests for robust release operations
Documentation: futex: Add a note about robust list race condition
x86/vdso: Implement __vdso_futex_robust_try_unlock()
x86/vdso: Prepare for robust futex unlock support
futex: Provide infrastructure to plug the non contended robust futex unlock race
futex: Add robust futex unlock IP range
futex: Add support for unlocking robust futexes
futex: Cleanup UAPI defines
x86: Select ARCH_MEMORY_ORDER_TSO
uaccess: Provide unsafe_atomic_store_release_user()
futex: Provide UABI defines for robust list entry modifiers
futex: Move futex related mm_struct data into a struct
futex: Make futex_mm_init() void
...
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|
Linus Torvalds
|
a60ce761d9 |
Merge tag 'timers-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull timer core updates from Thomas Gleixner:
"Updates for the time/timer core subsystem:
- Harden the user space controllable hrtimer interfaces further to
protect against unpriviledged DoS attempts by arming timers in the
past.
- Add per-capacity hierarchies to the timer migration code to prevent
timer migration accross different capacity domains. This code has
been disabled last minute as there is a pathological problem with
SoCs which advertise a larger number of capacity domains. The
problem is under investigation and the code won't be active before
v7.3, but that turned out to be less intrusive than a full revert
as it preserves the preparatory steps and allows people to work on
the final resolution
- Export time namespace functionality as a recent user can be built
as a module.
- Initialize the jiffies clocksource before using it. The recent
hardening against time moving backward requires that the related
members of struct clocksource have been initialized, otherwise it
clamps the readout to 0, which makes time stand sill and causes
boot delays.
- Fix a more than twenty year old PID reference count leak in an
error path of the POSIX CPU timer code.
- The usual small fixes, improvements and cleanups all over the
place"
* tag 'timers-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (31 commits)
posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path
time/jiffies: Register jiffies clocksource before usage
timers/migration: Temporarily disable per capacity hierarchies
timers/migration: Turn tmigr_hierarchy level_list into a flexible array
timers/migration: Deactivate per-capacity hierarchies under nohz_full
timers/migration: Fix hotplug migrator selection target on asymetric capacity machines
ntsync: Honour caller's time namespace for absolute MONOTONIC timeouts
time/namespace: Export init_time_ns and do_timens_ktime_to_host()
timers/migration: Update stale @online doc to @available
timers: Fix flseep() typo in kernel-doc comment
hrtimer: Fix the bogus return type of __hrtimer_start_range_ns()
hrtimer: Return ktime_t from hrtimer_get_next_event()/hrtimer_next_event_without()
clocksource: Clean up clocksource_update_freq() functions
alarmtimer: Remove stale return description from alarm_handle_timer()
selftests/posix_timers: Use CLOCK_THREAD_CPUTIME_ID for ITIMER_PROF measurements
scripts/timers: Add timer_migration_tree.py
timers/migration: Handle capacity in connect tracepoints
timers/migration: Split per-capacity hierarchies
timers/migration: Track CPUs in a hierarchy
timers/migration: Abstract out hierarchy to prepare for CPU capacity awareness
...
|
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|
Linus Torvalds
|
2bfc56d9f5 |
Merge tag 'for-linus-7.2-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross: - Several small cleanups of various Xen related drivers (xen/platform-pci, xen-balloon, xenbus, xen/mcelog) - Cleanup for Xen PV-mode related code (includes dropping the Xen debugfs code) - Drop the additional lazy mmu mode tracking done by Xen specific code * tag 'for-linus-7.2-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/xenbus: Replace strcpy() with memcpy() x86/xen: Replace generic lazy tracking with cpu specific one x86/xen: Get rid of last XEN_LAZY_MMU uses mm: Refactor lazy_mmu_mode_pause() and lazy_mmu_mode_resume() x86/xen: Change interface of xen_mc_issue() x86/xen: Drop lazy mode from trace entries x86/xen: Remove Xen debugfs support x86/xen: Cleanup Xen related trace points x86/xen: Guard PV-only stuff in xen-ops.h with CONFIG_XEN_PV xen: balloon: Replace sprintf() with sysfs_emit() xen/mcelog: mark g_physinfo, ncpus and xen_mce_chrdev_device as __ro_after_init xen: constify xsd_errors array xen/platform-pci: Simplify initialization of pci_device_id array |
||
|
Linus Torvalds
|
c17fdf62ae |
Merge tag 'vfs-7.2-rc1.writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs writeback updates from Christian Brauner: - Fix a race between cgroup_writeback_umount() and inode_switch_wbs() When a container exits, a race between cgroup_writeback_umount() and inode_switch_wbs()/cleanup_offline_cgwb() can trigger "VFS: Busy inodes after unmount" followed by a use-after-free on percpu counters. There is a window between inode_prepare_wbs_switch() returning true (having passed the SB_ACTIVE check and grabbed the inode) and the subsequent wb_queue_isw() call: if cgroup_writeback_umount() observes the global isw_nr_in_flight counter as non-zero but flush_workqueue() finds nothing queued yet, it returns early - leaving a held inode reference that blocks evict_inodes() and a later iput() that hits freed percpu counters. The race is closed by covering the window from inode_prepare_wbs_switch() through wb_queue_isw() with an RCU read-side critical section and synchronizing in the umount path. On top of that the now-dead rcu_barrier() left over from the queue_rcu_work() era is removed, and the global synchronize_rcu()/flush_workqueue() pair is replaced with a per-sb in-flight counter plus pin/unpin/drain helpers so umount no longer serializes against switch activity on unrelated superblocks. Under cgroup writeback churn on a 16 vCPU guest this takes umount latency from ~92-138ms p50 down to ~5-8ms p50 and the cumulative cost of cgroup_writeback_umount() from ~62ms to ~4us per call. The initial race fix is kept separate and minimal so it backports cleanly to stable trees that still queue switches via queue_rcu_work(). - Improve write performance with RWF_DONTCACHE Dirty DONTCACHE pages are now tracked per bdi_writeback so that the writeback flusher can be kicked in a targeted fashion for IOCB_DONTCACHE writes instead of relying on global writeback, and the PG_dropbehind flag is preserved when a folio is split. * tag 'vfs-7.2-rc1.writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: mm: kick writeback flusher for IOCB_DONTCACHE with targeted dirty tracking mm: track DONTCACHE dirty pages per bdi_writeback mm: preserve PG_dropbehind flag during folio split writeback: use a per-sb counter to drain inode wb switches at umount writeback: drop now-unnecessary rcu_barrier() in cgroup_writeback_umount() writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() |
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|
Linus Torvalds
|
6b5b72ac2c |
Merge tag 'vfs-7.2-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs directory delegations from Christian Brauner: "This contains the VFS prerequisites for supporting directory delegations in nfsd via CB_NOTIFY callbacks. The filelock core gains support for ignoring delegation breaks for directory change events together with an inode_lease_ignore_mask() helper, and fsnotify gains fsnotify_modify_mark_mask() and a FSNOTIFY_EVENT_RENAME data type. With this in place nfsd can request delegations on directories and set up inotify watches to trigger sending CB_NOTIFY events to clients instead of having every directory change break the delegation. New tracepoints are added to fsnotify() and to the start of break_lease(), and trace_break_lease_block() is passed the currently blocking lease instead of the new one. A follow-up fix moves the LEASE_BREAK_* flags out of #ifdef CONFIG_FILE_LOCKING to fix the build for CONFIG_FILE_LOCKING=n configurations" * tag 'vfs-7.2-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: filelock: move LEASE_BREAK_* flags out of #ifdef CONFIG_FILE_LOCKING fsnotify: add FSNOTIFY_EVENT_RENAME data type fsnotify: add fsnotify_modify_mark_mask() fsnotify: new tracepoint in fsnotify() filelock: add an inode_lease_ignore_mask helper filelock: add a tracepoint to start of break_lease() filelock: add support for ignoring deleg breaks for dir change events filelock: pass current blocking lease to trace_break_lease_block() rather than "new_fl" |
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Linus Torvalds
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fac863c887 |
Merge tag 'vfs-7.2-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs inode updates from Christian Brauner: "This extends the lockless ->i_count handling. iput() could already decrement any value greater than one locklessly but acquiring a reference always required taking inode->i_lock. Now acquiring a reference is lockless as long as the count was already at least 1, i.e., only the 0->1 and 1->0 transitions take the lock. This avoids the lock for the common cases of nfs calling into the inode hash and btrfs using igrab(). Cleanup-wise icount_read_once() is added to line up with inode_state_read_once() and the open-coded ->i_count loads across the tree are converted, and ihold() is relocated and tidied up. On top of that some stale lock ordering annotations are retired from the inode hash code: iunique() no longer takes the hash lock since the inode hash became RCU-searchable and s_inode_list_lock is no longer taken under the hash lock either" * tag 'vfs-7.2-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs: retire stale lock ordering annotations from inode hash fs: allow lockless ->i_count bumps as long as it does not transition 0->1 fs: relocate and tidy up ihold() fs: add icount_read_once() and stop open-coding ->i_count loads |
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Dmitry Ilvokhin
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4f070ccb4d |
locking: Add contended_release tracepoint to sleepable locks
Add the contended_release trace event. This tracepoint fires on the holder side when a contended lock is released, complementing the existing contention_begin/contention_end tracepoints which fire on the waiter side. This enables correlating lock hold time under contention with waiter events by lock address. Add trace_contended_release()/trace_call__contended_release() calls to the slowpath unlock paths of sleepable locks: mutex, rtmutex, semaphore, rwsem, percpu-rwsem, and RT-specific rwbase locks. Where possible, trace_contended_release() fires before the lock is released and before the waiter is woken. For some lock types, the tracepoint fires after the release but before the wake. Making the placement consistent across all lock types is not worth the added complexity. For reader/writer locks, the tracepoint fires for every reader releasing while a writer is waiting, not only for the last reader. Signed-off-by: Dmitry Ilvokhin <d@ilvokhin.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Paul E. McKenney <paulmck@kernel.org> Acked-by: Usama Arif <usama.arif@linux.dev> Link: https://patch.msgid.link/02f4f6c5ce6761e7f6587cf0ff2289d962ecddd4.1780506267.git.d@ilvokhin.com |
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Dmitry Ilvokhin
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76080d81e5 |
tracing/lock: Remove unnecessary linux/sched.h include
None of the trace events in lock.h reference anything from linux/sched.h. Remove the unnecessary include. Signed-off-by: Dmitry Ilvokhin <d@ilvokhin.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Usama Arif <usama.arif@linux.dev> Link: https://patch.msgid.link/85e14a0685c1d46c3e80de2dc01358a48169b263.1780506267.git.d@ilvokhin.com |
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Johannes Thumshirn
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5b65452756 |
btrfs: zoned: decode 'RECLAIM_ZONES' state in tracepoints
Decode the 'RECLAIM_ZONES' state in tracepoints, as of now only the numerical state is shown in the tracepoints. Reviewed-by: Boris Burkov <boris@bur.io> Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
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d8576024fa |
btrfs: tracepoints: show inode type in btrfs_sync_file_enter() event
Print the type of the inode (directory, regular file, symlink, etc) to facilitate debugging. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
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375336c17e |
btrfs: tracepoints: add trace event for btrfs_sync_log()
btrfs_sync_log() is one of the main functions called during a fsync. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
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8c2e738c61 |
btrfs: tracepoints: add trace event for btrfs_log_new_name()
btrfs_log_new_name() is an important function that affects inode logging and is called during link and rename operations. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
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4f065ebdf8 |
btrfs: tracepoints: add trace event for btrfs_record_new_subvolume()
btrfs_record_new_subvolume() is an important operation that affects inode logging and is called during subvolume creation. Add a trace event for it to help debug issues. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
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e144303240 |
btrfs: tracepoints: add trace event for btrfs_record_snapshot_destroy()
btrfs_record_snapshot_destroy() is an important operation that affects inode logging and is called during subvolume/snapshot deletion as well as during rmdir. Add a trace event for it to help debug issues. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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Filipe Manana
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bc620c48b5 |
btrfs: tracepoints: add trace event for btrfs_record_unlink_dir()
btrfs_record_unlink_dir() is an important operation that affects inode logging and is called during unlink and rename operations. Add a trace event for it to help debug issues. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |