Merge tag 'mm-hotfixes-stable-2026-08-19-21-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"8 hotfixes. 5 are cc:stable. 5 are for MM.
All are singletons, please see their changelogs for details"
* tag 'mm-hotfixes-stable-2026-08-19-21-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/pagewalk: fix stale walk->action escaping walk_pmd_range()
mm, swap: don't free a hibernation slot that is in the swap cache
mm: memcg-v1: fix memsw and TCP failcnt accounting
mm/vmscan: report RCU-tasks quiescent states in shrink_lruvec()
mailmap: add entries for Guodong Xu
MAINTAINERS, mailmap: update email address for JP Kobryn
MAINTAINERS: remove git URL for Squashfs
memcg: keep folio's objcg same as its node
[CHERI][RISCV][MC] Add shared support for aligning globals to an "alignment granule", which is applied to both the alignment and the allocated size. (#203872)
On CHERI targets, bounds are generally stored in a compressed format
which imposes alignment requirements based on allocation size. When
emitting globals, we need to align and tail-pad them as appropriate to
ensure that the pointer to the global will have bounds that are precise,
i.e. not covering any non-padding bytes that either precede or follow
While this patch adds the plumbing necessary to support this feature on
arbitrary targets, it only concretely implements it for RISCV Y-base and
XCheriot. Support for other targets (such as AArch64/MTE and
AArch64/Morello) is left as future work here.
Based on https://github.com/llvm/llvm-project/pull/121957
Co-authored-by: Florian Mayer <fmayer at google.com>
Co-authored-by: Florian Mayer <fmayer at google.com>
DPAA: Minor performance improvements
* Add interrupt coalescing for DQRR and MR, with thresholds and period
as tunable sysctls under the `hw.qman` tree.
* Do lazy/sloppy buffer management to avoid constantly checking
thresholds via QMan portal round-trips.
* Add cache stashing to prewarm caches, reducing latency.
* Fix the definition of Context_A in the init_fq MC command/result
structures, they're 64-bit fields, not 32-bit.
* Reorder the dpaa_eth_frame_info as a bit of cleanup.
* Take advantage of the fact that UMA small allocations are returned in
the DMAP, and avoid pmap_kextract().
These changes together improve throughput by ~1.5%
(925Mbps->935-940Mbps) consistently, and reduce CPU usage by a bit,
increasing idle CPU from 30%->35% minimum.
fman: Fix duplicate port identifiers
fman_qman_channel_id returns the QMan FMan channel for a given port.
If a port isn't found, the wrong channel number will be returned.
sdhci_fsl_fdt: Add support for PowerPC eSDHC controllers
Migrate all PowerPC QorIQ to the sdhci_fsl_fdt SDHC driver. There are a
few differences that need to be accounted for:
* On PowerPC device trees, the `clock-frequency` property defines the
clock rate, not a `clocks` reference property.
* On some older SoCs (P1022 only?) the BURST fields of the WML register
are reserved, and must be 0x10, so add a FSL quirk (errata field) to
account for this.
* The PowerPC eSDHC controllers must have the DMA SNOOP bit set for DMA
to work properly and avoid corruption.
As part of this, make the fallback "fsl,esdhc" compat data work for
PowerPC. If these fallbacks are not compatible with ARM SoCs, newer
compat strings could be added for those, but the conservative catch-all
should work for most SoCs, though perhaps less optimal.
Differential Revision: https://reviews.freebsd.org/D58630
powerpc/dma: Fix accounting and loading large segments
When the first page of a segment fits alignment, the second likely does
not, so the DMA infrastructure (must_bounce()) thinks it needs to bounce
the pages. Fix this by passing the previous end (address of byte
following the previous segment) as a third argument to must_bounce(), so
that the alignment check is done against the start of a new segment if
and only if necessary, instead of the current page.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58627
sdhci_fsl_fdt: Allow setting extra quirks
Respect the `hw.sdhci.quirk_set` and `hw.sdhci.quirk_clear` tunables in
the QorIQ eSDHC driver. This lets us tweak quirks for debugging or
platform specifics.
tailscale: update to 1.102.3
- Tailscale refuses host-scoped IPv4 destinations at every point that
acts on an unmapped 4via6 address. This fix addresses a security
vulnerability described in TS-2026-011.
- When MagicDNS is disabled, unqualified hostnames are correctly
forwarded to the configured nameservers.
- Resolved an issue where nodes with Tailnet Lock enabled on large
tailnets would experience startup failures.
[RISCV] Don't overcost wide load in optimized segment load/store (#207146)
With the +optimized-nfX-segment-load-store tuning flag, we cost a
segmented store as a single wide load + some shuffle ops.
However for e.g. a `<vscale x 5 x i64>` Factor=5 segmented load, a wide
`<vscale x 5 x i64>` load gets costed as a full LMUL 8 load.
From what I can see on
https://camel-cdr.github.io/rvv-bench-results/spacemit_x100/index.html
and on my own measurements on the spacemit-x60, uarchs likely don't do a
full LMUL 8 load under the hood and instead dispatch the minimum number
of DLEN sized ops needed for the full segment.
This changes the wide load cost to be divideCeil(vector size, DLEN) ops
so we don't overcost it.
Whilst we're here, this also removes the LT.first legalization
multiplier. We're computing the cost in terms of the unlegalized type so
we shouldn't be scaling it by the legalization cost.
[orc-rt] Add Proxy, a protocol-agnostic controller-call handle (#217792)
Introduce Proxy<RetT(ArgTs...)>, a typed handle for invoking a
controller-side operation from the executor. A Proxy abstracts over how
a call reaches the controller: it holds an opaque callee tag and a
dispatch function (supplied by a per-protocol spec) and forwards calls
through the Session.
This is a cut-down port of llvm/ExecutionEngine/Orc/Proxy.h, with two
deliberate differences:
- The callee is identified by an opaque tag (const void *, typically the
address of a controller-side global) rather than an ExecutorAddr, since
the executor->controller direction dispatches by tag.
- Only the asynchronous (OnComplete) call operator is provided. The
blocking convenience operator is omitted: the executor may be
single-threaded or freestanding and cannot rely on std::promise/future
or on blocking a dispatch thread.
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[SSAF] Fix a stage2 test failure with ASan-instrumented clang - continued
The previous effort in PR#211432 that disables ASan for one static
global is not sufficient. This commit disables ASan for the whole test
plugin.
rdar://182623740
[bazel] Select Windows GNU BLAKE3 assembly for clang-cl (#217695)
## Motivation
This PR is motivated by ongoing work of providing a fully hermetic
clang-cl bazel toolchain built for windows with the MSVC runtime.
The LLVM Bazel overlay does not select a Windows-compatible BLAKE3
assembly source set for an x86_64 Windows target compiled with the
rules_cc `clang-cl` compiler dialect.
The `windows_gnu.S` name can be misleading here. "GNU" describes the
assembly syntax accepted by GNU-style assemblers and Clang's integrated
assembler; it does **not** mean that the implementation uses the MinGW
ABI or runtime. These files implement the Microsoft x64 calling
convention and are intended to produce Windows COFF objects.
A hermetic clang-cl toolchain can therefore assemble the GNU-syntax
Windows sources directly. Selecting the MASM-syntax `windows_msvc.asm`
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*/*: Bump PORTREVISION for known Qt private API abusers
Qt 6.11.2 edition.
These ports are known to directly use or link to a library that uses the
Qt private API and must be rebuilt with every Qt update.
Qt *public* API/ABI compatability is excellent, so most consumers don't
need to necessarily be rebuilt between patch or even minor releases, but
use of the private API breaks this compatibility between even patch
releases and its use is highly discouraged.
This list [1] is based on histortical data. We don't have time to
revisit every port on the list with each Qt update, so if your port has
dropped Qt private headers and was bumped in error, please remove it
yourself if you have write access to the Wiki or alert someone on kde@.
[1] https://wiki.freebsd.org/KDE/Qt
MFH: 2026Q3
