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162,687 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Hamza Mahfooz
|
5e4304ff8c |
drivers/hv: introduce vmbus_channel_set_cpu()
The core functionality in target_cpu_store() is also needed in a subsequent patch for automatically changing the CPU when taking a CPU offline. As such, factor out the body of target_cpu_store() into new function vmbus_channel_set_cpu() that can also be used elsewhere. No functional change is intended. Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Michael Kelley <mhklinux@outlook.com> Cc: Wei Liu <wei.liu@kernel.org> Signed-off-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Michael Kelley <mhklinux@outlook.com> Link: https://lore.kernel.org/r/20250117203309.192072-2-hamzamahfooz@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <20250117203309.192072-2-hamzamahfooz@linux.microsoft.com> |
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Nuno Das Neves
|
0222eb30a3 |
hyperv: Move arch/x86/hyperv/hv_proc.c to drivers/hv
These helpers are not specific to x86_64 and will be needed by common code. Remove some unnecessary #includes. Reviewed-by: Michael Kelley <mhklinux@outlook.com> Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Link: https://lore.kernel.org/r/1738955002-20821-3-git-send-email-nunodasneves@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <1738955002-20821-3-git-send-email-nunodasneves@linux.microsoft.com> |
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Nuno Das Neves
|
e96204e5e9 |
hyperv: Move hv_current_partition_id to arch-generic code
Move hv_current_partition_id and hv_get_partition_id() to hv_common.c, and call hv_get_partition_id() on arm64 in hyperv_init(). These aren't specific to x86_64 and will be needed by common code. Set hv_current_partition_id to HV_PARTITION_ID_SELF by default. Rename struct hv_get_partition_id to hv_output_get_partition_id, to make it distinct from the function hv_get_partition_id(), and match the original Hyper-V struct name. Remove the BUG()s. Failing to get the id need not crash the machine. Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Link: https://lore.kernel.org/r/1738955002-20821-2-git-send-email-nunodasneves@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <1738955002-20821-2-git-send-email-nunodasneves@linux.microsoft.com> |
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Linus Torvalds
|
69b54314c9 |
Kbuild fixes for v6.14
- Suppress false-positive -Wformat-{overflow,truncation}-non-kprintf
warnings regardless of the W= option
- Avoid CONFIG_TRIM_UNUSED_KSYMS dropping symbols passed to symbol_get()
- Fix a build regression of the Debian linux-headers package
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Merge tag 'kbuild-fixes-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Suppress false-positive -Wformat-{overflow,truncation}-non-kprintf
warnings regardless of the W= option
- Avoid CONFIG_TRIM_UNUSED_KSYMS dropping symbols passed to symbol_get()
- Fix a build regression of the Debian linux-headers package
* tag 'kbuild-fixes-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: install-extmod-build: add missing quotation marks for CC variable
kbuild: fix misspelling in scripts/Makefile.lib
kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS
scripts/Makefile.extrawarn: Do not show clang's non-kprintf warnings at W=1
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Linus Torvalds
|
954a209f43 |
ARM:
* Correctly clean the BSS to the PoC before allowing EL2 to access it
on nVHE/hVHE/protected configurations
* Propagate ownership of debug registers in protected mode after
the rework that landed in 6.14-rc1
* Stop pretending that we can run the protected mode without a GICv3
being present on the host
* Fix a use-after-free situation that can occur if a vcpu fails to
initialise the NV shadow S2 MMU contexts
* Always evaluate the need to arm a background timer for fully emulated
guest timers
* Fix the emulation of EL1 timers in the absence of FEAT_ECV
* Correctly handle the EL2 virtual timer, specially when HCR_EL2.E2H==0
s390:
* move some of the guest page table (gmap) logic into KVM itself,
inching towards the final goal of completely removing gmap from the
non-kvm memory management code. As an initial set of cleanups, move
some code from mm/gmap into kvm and start using __kvm_faultin_pfn()
to fault-in pages as needed; but especially stop abusing page->index
and page->lru to aid in the pgdesc conversion.
x86:
* Add missing check in the fix to defer starting the huge page recovery
vhost_task
* SRSO_USER_KERNEL_NO does not need SYNTHESIZED_F
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Correctly clean the BSS to the PoC before allowing EL2 to access it
on nVHE/hVHE/protected configurations
- Propagate ownership of debug registers in protected mode after the
rework that landed in 6.14-rc1
- Stop pretending that we can run the protected mode without a GICv3
being present on the host
- Fix a use-after-free situation that can occur if a vcpu fails to
initialise the NV shadow S2 MMU contexts
- Always evaluate the need to arm a background timer for fully
emulated guest timers
- Fix the emulation of EL1 timers in the absence of FEAT_ECV
- Correctly handle the EL2 virtual timer, specially when HCR_EL2.E2H==0
s390:
- move some of the guest page table (gmap) logic into KVM itself,
inching towards the final goal of completely removing gmap from the
non-kvm memory management code.
As an initial set of cleanups, move some code from mm/gmap into kvm
and start using __kvm_faultin_pfn() to fault-in pages as needed;
but especially stop abusing page->index and page->lru to aid in the
pgdesc conversion.
x86:
- Add missing check in the fix to defer starting the huge page
recovery vhost_task
- SRSO_USER_KERNEL_NO does not need SYNTHESIZED_F"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (31 commits)
KVM: x86/mmu: Ensure NX huge page recovery thread is alive before waking
KVM: remove kvm_arch_post_init_vm
KVM: selftests: Fix spelling mistake "initally" -> "initially"
kvm: x86: SRSO_USER_KERNEL_NO is not synthesized
KVM: arm64: timer: Don't adjust the EL2 virtual timer offset
KVM: arm64: timer: Correctly handle EL1 timer emulation when !FEAT_ECV
KVM: arm64: timer: Always evaluate the need for a soft timer
KVM: arm64: Fix nested S2 MMU structures reallocation
KVM: arm64: Fail protected mode init if no vgic hardware is present
KVM: arm64: Flush/sync debug state in protected mode
KVM: s390: selftests: Streamline uc_skey test to issue iske after sske
KVM: s390: remove the last user of page->index
KVM: s390: move PGSTE softbits
KVM: s390: remove useless page->index usage
KVM: s390: move gmap_shadow_pgt_lookup() into kvm
KVM: s390: stop using lists to keep track of used dat tables
KVM: s390: stop using page->index for non-shadow gmaps
KVM: s390: move some gmap shadowing functions away from mm/gmap.c
KVM: s390: get rid of gmap_translate()
KVM: s390: get rid of gmap_fault()
...
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Linus Torvalds
|
9946eaf552 |
hardening fixes for v6.14-rc2
- Fix stackinit KUnit regression on m68k - Use ARRAY_SIZE() for memtostr*()/strtomem*() -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCZ6fBgQAKCRA2KwveOeQk u1HdAQCstqRZjXUqdG1jX56g1cW7RoLDtZC3Y9npyhVByUmFHgEAjsH1gmQcNswX 676kSkJaB3Iv4yQ17ozjlBWEd4xroAs= =YibW -----END PGP SIGNATURE----- Merge tag 'hardening-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening fixes from Kees Cook: "Address a KUnit stack initialization regression that got tickled on m68k, and solve a Clang(v14 and earlier) bug found by 0day: - Fix stackinit KUnit regression on m68k - Use ARRAY_SIZE() for memtostr*()/strtomem*()" * tag 'hardening-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: string.h: Use ARRAY_SIZE() for memtostr*()/strtomem*() compiler.h: Introduce __must_be_byte_array() compiler.h: Move C string helpers into C-only kernel section stackinit: Fix comment for test_small_end stackinit: Keep selftest union size small on m68k |
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Linus Torvalds
|
493f3f38da |
SCSI fixes on 20250208
A number of fairly small fixes, mostly in drivers but two in the core to change a retry for depopulation (a trendy new hdd thing that reorganizes blocks away from failing elements) and one to fix a GFP_ annotation to avoid a lock dependency (the third core patch is all in testing). Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCZ6evOyYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishcCLAP410FjL Bjf3KW2Kxykg500vWfkjtxilW8f/5kBmLa50LQEA9qV8H17nNPk1VQvugnjElN/B TqEApyOutoeFvqu9Uig= =3COU -----END PGP SIGNATURE----- Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "A number of fairly small fixes, mostly in drivers but two in the core to change a retry for depopulation (a trendy new hdd thing that reorganizes blocks away from failing elements) and one to fix a GFP_ annotation to avoid a lock dependency (the third core patch is all in testing)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qla1280: Fix kernel oops when debug level > 2 scsi: ufs: core: Fix error return with query response scsi: storvsc: Set correct data length for sending SCSI command without payload scsi: ufs: core: Fix use-after free in init error and remove paths scsi: core: Do not retry I/Os during depopulation scsi: core: Use GFP_NOIO to avoid circular locking dependency scsi: ufs: Fix toggling of clk_gating.state when clock gating is not allowed scsi: ufs: core: Ensure clk_gating.lock is used only after initialization scsi: ufs: core: Simplify temperature exception event handling scsi: target: core: Add line break to status show scsi: ufs: core: Fix the HIGH/LOW_TEMP Bit Definitions scsi: core: Add passthrough tests for success and no failure definitions |
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Linus Torvalds
|
74b5161d57 |
i2c-for-6.14-rc2
It turned out the new mechanism for handling created devices does not handle all muxing cases. Revert the changes to give a proper solution more time. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmenRrUACgkQFA3kzBSg KbaK9w//aKeNus/4PEaYikf6XoVbi8SVYMgyX/mNBhcI21koqbVjc8Mi4DTsW9VD p7RpSGH9QPGTMtpqoSXVjBUKf9kK4FfyDb0EJMcXWUvewBWOmcPrRmKrRsNFfEJL sLy37lVzOBJdUc+TipdUG2oOtMirt6SlsJt9DNZy64b9r2wB/2egjhQ8VXo1exDI o4pU9lboycDwp4xQ1g9CjoHKOWQmQS7ZBvLz49XzA/wC0G0JBAlmzqr83Ke1oRYM wLOzZH9JWGgw7tLJE0fmAQfOTCt6r3uxNmB1/h1xbHmyjFY1qHofVdZC7mXr20cs /Zku5wjA/8iFF6j6CiQDpZyPQJJJHxq7LQyFbYP0419GNxkZjb4KML8dZvEYuMaj A2DqhegQ5frqGzk+JvX6kysT/sKhZ/pW2E00X3wmHLDpu4h0/TWiloMSIDZ37LR5 vuh8VKtK4zDLrJAi1WPXzwTvoGziT1HCcEXmoFVaTb5Us0w6Cc+5sAryYCnVYmN9 ku2Z22bk2/e60HzZ0FjX9HOuIIcIIbjMNsUtTrykHUCRNxU960AjPxy5IBXjilk2 v5IpYi/3ZbZEtC3ozfrwzYp4g1P4leclDndMa0fz+9IDZK6HoRmUSrB2OIMQDsC4 aN1sK56n+oCjj8IJ3mRUYeQvMQTdncAG4g41Mx++jKePpcWYvXM= =uhz5 -----END PGP SIGNATURE----- Merge tag 'i2c-for-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c reverts from Wolfram Sang: "It turned out the new mechanism for handling created devices does not handle all muxing cases. Revert the changes to give a proper solution more time" * tag 'i2c-for-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: Revert "i2c: Replace list-based mechanism for handling auto-detected clients" Revert "i2c: Replace list-based mechanism for handling userspace-created clients" |
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Linus Torvalds
|
7ee983c850 |
drm fixes for 6.14-rc2
amdgpu: - Add new tiling flag for DCC write compress disable - Add BO metadata flag for DCC - Fix potential out of bounds access in display - Seamless boot fix - CONFIG_FRAME_WARN fix - PSR1 fix xe: - OA uAPI related fixes - Fix SRIOV migration initialization - Restore devcoredump to a sane state i915: - Fix the build error with clamp after WARN_ON on gcc 13.x+ - HDCP related fixes - PMU fix zero delta busyness issue - Fix page cleanup on DMA remap failure - Drop 64bpp YUV formats from ICL+ SDR planes - GuC log related fix - DisplayPort related fixes ivpu: - Fix error handling komeda: - add return check zynqmp: - fix locking in DP code ast: - fix AST DP timeout cec: - fix broken CEC adapter check -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmemX5QACgkQDHTzWXnE hr5aqw//WDuUZG9yGh6+jXynDn7onKMQVRRdYzexkMTylOADCVtSg1XQiIyrhoSP Wu/l/CTapeqLfaWV0uDhz8vRncBj1HSGmaOH/dXS9z3J+O3ie+R+COhVzrLQEqlX Eu06Z+WrtQDl4qda2azIoMnRYZwHQmhxzTb9IBsqHb7GXrJ2YFTNT9QwcvOxVIBJ jyj68CoHuDmSJZKRWJ5eVwIY9twP/1dZQsNZihGQ/ICNQQ6muYZBPMOk6lbEN30e SSIcJkUcUWCtq6fQR8peiCTWCp8265IV23Waqh0UkUjHSbkyYhC8akk+pweoh+pv ChUNSwSofJVaax7FEw12AhlmKI/rYjhAmxtXV1Qpeyy4yW04RnsvKSEDnGZ9/Cek fflBbs8CayBfTe8URm/DGk8qUixkzOHA5tZk3nQ54nrMQQOpEkkUrbqGrkFUeVaC CtmkaiUfFtf/yfuLhZypstiWHon4FwvyWNo+QWbItpD01IPPHGlz1bbHVvgpluRi pcWRKRlwj1WyBAxhT+jjn5Hu50yIuivbiBHkeMUiKL03kBvMuplW+WiHIO4kMqj8 5c7fEelcH5onM8oSTzs0s4QWCjjLLscvkMkkhIh0ot1mDJSR0SfBNiq6QDt7PpPf mjR9UMPLnLQJ/FN5Fz4j/+fd85ckG6ooWypgpyA4iyOiVITykeY= =/5Ke -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2025-02-08' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Just regular drm fixes, amdgpu, xe and i915 mostly, but a few scattered fixes. I think one of the i915 fixes fixes some build combos that Guenter was seeing. amdgpu: - Add new tiling flag for DCC write compress disable - Add BO metadata flag for DCC - Fix potential out of bounds access in display - Seamless boot fix - CONFIG_FRAME_WARN fix - PSR1 fix xe: - OA uAPI related fixes - Fix SRIOV migration initialization - Restore devcoredump to a sane state i915: - Fix the build error with clamp after WARN_ON on gcc 13.x+ - HDCP related fixes - PMU fix zero delta busyness issue - Fix page cleanup on DMA remap failure - Drop 64bpp YUV formats from ICL+ SDR planes - GuC log related fix - DisplayPort related fixes ivpu: - Fix error handling komeda: - add return check zynqmp: - fix locking in DP code ast: - fix AST DP timeout cec: - fix broken CEC adapter check" * tag 'drm-fixes-2025-02-08' of https://gitlab.freedesktop.org/drm/kernel: (29 commits) drm/i915/dp: Fix potential infinite loop in 128b/132b SST Revert "drm/amd/display: Use HW lock mgr for PSR1" drm/amd/display: Respect user's CONFIG_FRAME_WARN more for dml files accel/amdxdna: Add MODULE_FIRMWARE() declarations drm/i915/dp: Iterate DSC BPP from high to low on all platforms drm/xe: Fix and re-enable xe_print_blob_ascii85() drm/xe/devcoredump: Move exec queue snapshot to Contexts section drm/xe/oa: Set stream->pollin in xe_oa_buffer_check_unlocked drm/xe/pf: Fix migration initialization drm/xe/oa: Preserve oa_ctrl unused bits drm/amd/display: Fix seamless boot sequence drm/amd/display: Fix out-of-bound accesses drm/amdgpu: add a BO metadata flag to disable write compression for Vulkan drm/i915/backlight: Return immediately when scale() finds invalid parameters drm/i915/dp: Return min bpc supported by source instead of 0 drm/i915/dp: fix the Adaptive sync Operation mode for SDP drm/i915/guc: Debug print LRC state entries only if the context is pinned drm/i915: Drop 64bpp YUV formats from ICL+ SDR planes drm/i915: Fix page cleanup on DMA remap failure drm/i915/pmu: Fix zero delta busyness issue ... |
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Linus Torvalds
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8c67da5bc1 |
vfs-6.14-rc2.fixes
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZ6XhrQAKCRCRxhvAZXjc oujrAQCpGmhvh2jGIKcSmEigNHOGCUXDG+1QsVpnCeP9OaUrkAEA+dMo4Ai4hz4J nYeeAgpjGuu+XLMmi7EiGxpI0fQL3gc= =oN/E -----END PGP SIGNATURE----- Merge tag 'vfs-6.14-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: - Fix fsnotify FMODE_NONOTIFY* handling. This also disables fsnotify on all pseudo files by default apart from very select exceptions. This carries a regression risk so we need to watch out and adapt accordingly. However, it is overall a significant improvement over the current status quo where every rando file can get fsnotify enabled. - Cleanup and simplify lockref_init() after recent lockref changes. - Fix vboxfs build with gcc-15. - Add an assert into inode_set_cached_link() to catch corrupt links. - Allow users to also use an empty string check to detect whether a given mount option string was empty or not. - Fix how security options were appended to statmount()'s ->mnt_opt field. - Fix statmount() selftests to always check the returned mask. - Fix uninitialized value in vfs_statx_path(). - Fix pidfs_ioctl() sanity checks to guard against ioctl() overloading and preserve extensibility. * tag 'vfs-6.14-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: vfs: sanity check the length passed to inode_set_cached_link() pidfs: improve ioctl handling fsnotify: disable pre-content and permission events by default selftests: always check mask returned by statmount(2) fsnotify: disable notification by default for all pseudo files fs: fix adding security options to statmount.mnt_opt fsnotify: use accessor to set FMODE_NONOTIFY_* lockref: remove count argument of lockref_init gfs2: switch to lockref_init(..., 1) gfs2: use lockref_init for gl_lockref statmount: let unset strings be empty vboxsf: fix building with GCC 15 fs/stat.c: avoid harmless garbage value problem in vfs_statx_path() |
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Mateusz Guzik
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37d11cfc63 |
vfs: sanity check the length passed to inode_set_cached_link()
This costs a strlen() call when instatianating a symlink. Preferably it would be hidden behind VFS_WARN_ON (or compatible), but there is no such facility at the moment. With the facility in place the call can be patched out in production kernels. In the meantime, since the cost is being paid unconditionally, use the result to a fixup the bad caller. This is not expected to persist in the long run (tm). Sample splat: bad length passed for symlink [/tmp/syz-imagegen43743633/file0/file0] (got 131109, expected 37) [rest of WARN blurp goes here] Signed-off-by: Mateusz Guzik <mjguzik@gmail.com> Link: https://lore.kernel.org/r/20250204213207.337980-1-mjguzik@gmail.com Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Amir Goldstein
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95101401bb |
fsnotify: use accessor to set FMODE_NONOTIFY_*
The FMODE_NONOTIFY_* bits are a 2-bits mode. Open coding manipulation of those bits is risky. Use an accessor file_set_fsnotify_mode() to set the mode. Rename file_set_fsnotify_mode() => file_set_fsnotify_mode_from_watchers() to make way for the simple accessor name. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Link: https://lore.kernel.org/r/20250203223205.861346-2-amir73il@gmail.com Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Andreas Gruenbacher
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bb504b4d64 |
lockref: remove count argument of lockref_init
All users of lockref_init() now initialize the count to 1, so hardcode that and remove the count argument. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Link: https://lore.kernel.org/r/20250130135624.1899988-4-agruenba@redhat.com Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Dave Airlie
|
e92e11b462 |
A couple of fixes for ivpu to error handling, komeda for format
handling, AST DP timeout fix when enabling the output, locking fix for zynqmp DP support, tiled format handling in drm/client, and refcounting fix for bochs -----BEGIN PGP SIGNATURE----- iJUEABMJAB0WIQTkHFbLp4ejekA/qfgnX84Zoj2+dgUCZ6R9jwAKCRAnX84Zoj2+ drO1AYCRRlokrTPy9jqL1EFfpvI7aqq02jA/87CcaDd19DS2phZyx6UEAIMFaXdp E+fNafgBgKg5Wi64Ht7gyjJaI+FZv9qSXBo/9YMAk98xGstdT9HJ23nVHSeQ17XV HKo7LM3Crw== =WODG -----END PGP SIGNATURE----- Merge tag 'drm-misc-fixes-2025-02-06' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes A couple of fixes for ivpu to error handling, komeda for format handling, AST DP timeout fix when enabling the output, locking fix for zynqmp DP support, tiled format handling in drm/client, and refcounting fix for bochs Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250206-encouraging-judicious-quoll-adc1dc@houat |
||
Kees Cook
|
6270f4deba |
string.h: Use ARRAY_SIZE() for memtostr*()/strtomem*()
The destination argument of memtostr*() and strtomem*() must be a
fixed-size char array at compile time, so there is no need to use
__builtin_object_size() (which is useful for when an argument is
either a pointer or unknown). Instead use ARRAY_SIZE(), which has the
benefit of working around a bug in Clang (fixed[1] in 15+) that got
__builtin_object_size() wrong sometimes.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501310832.kiAeOt2z-lkp@intel.com/
Suggested-by: Kent Overstreet <kent.overstreet@linux.dev>
Link:
|
||
|
Kees Cook
|
20e5cc26e5 |
compiler.h: Introduce __must_be_byte_array()
In preparation for adding stricter type checking to the str/mem*() helpers, provide a way to check that a variable is a byte array via __must_be_byte_array(). Suggested-by: Kent Overstreet <kent.overstreet@linux.dev> Signed-off-by: Kees Cook <kees@kernel.org> |
||
|
Kees Cook
|
cb7380de9e |
compiler.h: Move C string helpers into C-only kernel section
The C kernel helpers for evaluating C Strings were positioned where they were visible to assembly inclusion, which was not intended. Move them into the kernel and C-only area of the header so future changes won't confuse the assembler. Fixes: |
||
|
Linus Torvalds
|
3cf0a98fea |
Current release - regressions:
- core: harmonize tstats and dstats
- ipv6: fix dst refleaks in rpl, seg6 and ioam6 lwtunnels
- eth: tun: revert fix group permission check
- eth: stmmac: revert "specify hardware capability value when FIFO size isn't specified"
Previous releases - regressions:
- udp: gso: do not drop small packets when PMTU reduces
- rxrpc: fix race in call state changing vs recvmsg()
- eth: ice: fix Rx data path for heavy 9k MTU traffic
- eth: vmxnet3: fix tx queue race condition with XDP
Previous releases - always broken:
- sched: pfifo_tail_enqueue: drop new packet when sch->limit == 0
- ethtool: ntuple: fix rss + ring_cookie check
- rxrpc: fix the rxrpc_connection attend queue handling
Misc:
- recognize Kuniyuki Iwashima as a maintainer
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Interestingly the recent kmemleak improvements allowed our CI to catch
a couple of percpu leaks addressed here.
We (mostly Jakub, to be accurate) are working to increase review
coverage over the net code-base tweaking the MAINTAINER entries.
Current release - regressions:
- core: harmonize tstats and dstats
- ipv6: fix dst refleaks in rpl, seg6 and ioam6 lwtunnels
- eth: tun: revert fix group permission check
- eth: stmmac: revert "specify hardware capability value when FIFO
size isn't specified"
Previous releases - regressions:
- udp: gso: do not drop small packets when PMTU reduces
- rxrpc: fix race in call state changing vs recvmsg()
- eth: ice: fix Rx data path for heavy 9k MTU traffic
- eth: vmxnet3: fix tx queue race condition with XDP
Previous releases - always broken:
- sched: pfifo_tail_enqueue: drop new packet when sch->limit == 0
- ethtool: ntuple: fix rss + ring_cookie check
- rxrpc: fix the rxrpc_connection attend queue handling
Misc:
- recognize Kuniyuki Iwashima as a maintainer"
* tag 'net-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits)
Revert "net: stmmac: Specify hardware capability value when FIFO size isn't specified"
MAINTAINERS: add a sample ethtool section entry
MAINTAINERS: add entry for ethtool
rxrpc: Fix race in call state changing vs recvmsg()
rxrpc: Fix call state set to not include the SERVER_SECURING state
net: sched: Fix truncation of offloaded action statistics
tun: revert fix group permission check
selftests/tc-testing: Add a test case for qdisc_tree_reduce_backlog()
netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
selftests/tc-testing: Add a test case for pfifo_head_drop qdisc when limit==0
pfifo_tail_enqueue: Drop new packet when sch->limit == 0
selftests: mptcp: connect: -f: no reconnect
net: rose: lock the socket in rose_bind()
net: atlantic: fix warning during hot unplug
rxrpc: Fix the rxrpc_connection attend queue handling
net: harmonize tstats and dstats
selftests: drv-net: rss_ctx: don't fail reconfigure test if queue offset not supported
selftests: drv-net: rss_ctx: add missing cleanup in queue reconfigure
ethtool: ntuple: fix rss + ring_cookie check
ethtool: rss: fix hiding unsupported fields in dumps
...
|
||
Maxime Ripard
|
2c1ed90752 |
Merge remote-tracking branch 'drm-misc/drm-misc-next-fixes' into drm-misc-fixes
Merge the few remaining patches stuck into drm-misc-next-fixes. Signed-off-by: Maxime Ripard <mripard@kernel.org> |
||
Ido Schimmel
|
811b8f534f |
net: sched: Fix truncation of offloaded action statistics
In case of tc offload, when user space queries the kernel for tc action
statistics, tc will query the offloaded statistics from device drivers.
Among other statistics, drivers are expected to pass the number of
packets that hit the action since the last query as a 64-bit number.
Unfortunately, tc treats the number of packets as a 32-bit number,
leading to truncation and incorrect statistics when the number of
packets since the last query exceeds 0xffffffff:
$ tc -s filter show dev swp2 ingress
filter protocol all pref 1 flower chain 0
filter protocol all pref 1 flower chain 0 handle 0x1
skip_sw
in_hw in_hw_count 1
action order 1: mirred (Egress Redirect to device swp1) stolen
index 1 ref 1 bind 1 installed 58 sec used 0 sec
Action statistics:
Sent 1133877034176 bytes 536959475 pkt (dropped 0, overlimits 0 requeues 0)
[...]
According to the above, 2111-byte packets were redirected which is
impossible as only 64-byte packets were transmitted and the MTU was
1500.
Fix by treating packets as a 64-bit number:
$ tc -s filter show dev swp2 ingress
filter protocol all pref 1 flower chain 0
filter protocol all pref 1 flower chain 0 handle 0x1
skip_sw
in_hw in_hw_count 1
action order 1: mirred (Egress Redirect to device swp1) stolen
index 1 ref 1 bind 1 installed 61 sec used 0 sec
Action statistics:
Sent 1370624380864 bytes 21416005951 pkt (dropped 0, overlimits 0 requeues 0)
[...]
Which shows that only 64-byte packets were redirected (1370624380864 /
21416005951 = 64).
Fixes:
|
||
Masahiro Yamada
|
4c56eb33e6 |
kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS
Linus observed that the symbol_request(utf8_data_table) call fails when
CONFIG_UNICODE=y and CONFIG_TRIM_UNUSED_KSYMS=y.
symbol_get() relies on the symbol data being present in the ksymtab for
symbol lookups. However, EXPORT_SYMBOL_GPL(utf8_data_table) is dropped
due to CONFIG_TRIM_UNUSED_KSYMS, as no module references it in this case.
Probably, this has been broken since commit
|
||
Wolfram Sang
|
3bfa08fe9e |
Revert "i2c: Replace list-based mechanism for handling auto-detected clients"
This reverts commit
|
||
|
Wolfram Sang
|
c4d3dfd8cc |
Revert "i2c: Replace list-based mechanism for handling userspace-created clients"
This reverts commit
|
||
Paolo Bonzini
|
6f61269495 |
KVM: remove kvm_arch_post_init_vm
The only statement in a kvm_arch_post_init_vm implementation can be moved into the x86 kvm_arch_init_vm. Do so and remove all traces from architecture-independent code. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
David Howells
|
4241a702e0 |
rxrpc: Fix the rxrpc_connection attend queue handling
The rxrpc_connection attend queue is never used because conn::attend_link
is never initialised and so is always NULL'd out and thus always appears to
be busy. This requires the following fix:
(1) Fix this the attend queue problem by initialising conn::attend_link.
And, consequently, two further fixes for things masked by the above bug:
(2) Fix rxrpc_input_conn_event() to handle being invoked with a NULL
sk_buff pointer - something that can now happen with the above change.
(3) Fix the RXRPC_SKB_MARK_SERVICE_CONN_SECURED message to carry a pointer
to the connection and a ref on it.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Paolo Abeni <pabeni@redhat.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
cc: netdev@vger.kernel.org
Fixes:
|
||
Paolo Abeni
|
d3ed6dee73 |
net: harmonize tstats and dstats
After the blamed commits below, some UDP tunnel use dstats for
accounting. On the xmit path, all the UDP-base tunnels ends up
using iptunnel_xmit_stats() for stats accounting, and the latter
assumes the relevant (tunnel) network device uses tstats.
The end result is some 'funny' stat report for the mentioned UDP
tunnel, e.g. when no packet is actually dropped and a bunch of
packets are transmitted:
gnv2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue \
state UNKNOWN mode DEFAULT group default qlen 1000
link/ether ee:7d:09:87:90:ea brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped missed mcast
14916 23 0 15 0 0
TX: bytes packets errors dropped carrier collsns
0 1566 0 0 0 0
Address the issue ensuring the same binary layout for the overlapping
fields of dstats and tstats. While this solution is a bit hackish, is
smaller and with no performance pitfall compared to other alternatives
i.e. supporting both dstat and tstat in iptunnel_xmit_stats() or
reverting the blamed commit.
With time we should possibly move all the IP-based tunnel (and virtual
devices) to dstats.
Fixes:
|
||
André Draszik
|
f8fb2403dd |
scsi: ufs: core: Fix use-after free in init error and remove paths
devm_blk_crypto_profile_init() registers a cleanup handler to run when
the associated (platform-) device is being released. For UFS, the
crypto private data and pointers are stored as part of the ufs_hba's
data structure 'struct ufs_hba::crypto_profile'. This structure is
allocated as part of the underlying ufshcd and therefore Scsi_host
allocation.
During driver release or during error handling in ufshcd_pltfrm_init(),
this structure is released as part of ufshcd_dealloc_host() before the
(platform-) device associated with the crypto call above is released.
Once this device is released, the crypto cleanup code will run, using
the just-released 'struct ufs_hba::crypto_profile'. This causes a
use-after-free situation:
Call trace:
kfree+0x60/0x2d8 (P)
kvfree+0x44/0x60
blk_crypto_profile_destroy_callback+0x28/0x70
devm_action_release+0x1c/0x30
release_nodes+0x6c/0x108
devres_release_all+0x98/0x100
device_unbind_cleanup+0x20/0x70
really_probe+0x218/0x2d0
In other words, the initialisation code flow is:
platform-device probe
ufshcd_pltfrm_init()
ufshcd_alloc_host()
scsi_host_alloc()
allocation of struct ufs_hba
creation of scsi-host devices
devm_blk_crypto_profile_init()
devm registration of cleanup handler using platform-device
and during error handling of ufshcd_pltfrm_init() or during driver
removal:
ufshcd_dealloc_host()
scsi_host_put()
put_device(scsi-host)
release of struct ufs_hba
put_device(platform-device)
crypto cleanup handler
To fix this use-after free, change ufshcd_alloc_host() to register a
devres action to automatically cleanup the underlying SCSI device on
ufshcd destruction, without requiring explicit calls to
ufshcd_dealloc_host(). This way:
* the crypto profile and all other ufs_hba-owned resources are
destroyed before SCSI (as they've been registered after)
* a memleak is plugged in tc-dwc-g210-pci.c remove() as a
side-effect
* EXPORT_SYMBOL_GPL(ufshcd_dealloc_host) can be removed fully as
it's not needed anymore
* no future drivers using ufshcd_alloc_host() could ever forget
adding the cleanup
Fixes:
|
||
Martin K. Petersen
|
16b047c9a4 |
Merge branch '6.14/scsi-queue' into 6.14/scsi-fixes
Pull outstanding fixes bound for this release into 6.14/scsi-fixes. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
||
Marek Olšák
|
2255b40cac |
drm/amdgpu: add a BO metadata flag to disable write compression for Vulkan
Vulkan can't support DCC and Z/S compression on GFX12 without WRITE_COMPRESS_DISABLE in this commit or a completely different DCC interface. AMDGPU_TILING_GFX12_SCANOUT is added because it's already used by userspace. Cc: stable@vger.kernel.org # 6.12.x Signed-off-by: Marek Olšák <marek.olsak@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
||
|
Linus Torvalds
|
f286757b64 |
Updates for timers and timekeeping:
- Properly cast the input to secs_to_jiffies() to unsigned long as
otherwise the result uses the data type of the input variable, which
causes result range checks to fail if the input data type is signed and
smaller than unsigned long.
- Handle late armed hrtimers gracefully on CPU hotplug
There are legitimate cases where a hrtimer is (re)armed on an outgoing
CPU after the timers have been migrated away. This triggers warnings and
caused people to implement horrible workarounds in RCU. But those work
arounds are incomplete and do not cover e.g. the scheduler hrtimers.
Stop this by force moving timer which are enqueued on the current CPU
after timer migration to be queued on a remote online CPU.
This allows to undo the workarounds in a seperate step.
- Demote a warning level printk() to info level in the clocksource
watchdog code as there is no point to emit a warning level message for a
purely informational message.
- Mark a helper function __always_inline and move it into the existing
#ifdef block to avoid 'unused function' warnings from CLANG
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Merge tag 'timers-urgent-2025-02-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
- Properly cast the input to secs_to_jiffies() to unsigned long as
otherwise the result uses the data type of the input variable, which
causes result range checks to fail if the input data type is signed
and smaller than unsigned long.
- Handle late armed hrtimers gracefully on CPU hotplug
There are legitimate cases where a hrtimer is (re)armed on an
outgoing CPU after the timers have been migrated away. This triggers
warnings and caused people to implement horrible workarounds in RCU.
But those workarounds are incomplete and do not cover e.g. the
scheduler hrtimers.
Stop this by force moving timer which are enqueued on the current CPU
after timer migration to be queued on a remote online CPU.
This allows to undo the workarounds in a seperate step.
- Demote a warning level printk() to info level in the clocksource
watchdog code as there is no point to emit a warning level message
for a purely informational message.
- Mark a helper function __always_inline and move it into the existing
#ifdef block to avoid 'unused function' warnings from CLANG
* tag 'timers-urgent-2025-02-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
jiffies: Cast to unsigned long in secs_to_jiffies() conversion
clocksource: Use pr_info() for "Checking clocksource synchronization" message
hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING
hrtimers: Mark is_migration_base() with __always_inline
|
||
|
Linus Torvalds
|
a86bf2283d |
assorted stuff for this merge window
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCZ5yJdgAKCRBZ7Krx/gZQ 69W4AQDwgxceiQ6icx3rFhCWQigne4jdMO84kd8tNaa+xHGe1AD/WnkeChc5DqjQ wZWZxAAzml9SS01IcSiHWaF5fgrjlA0= =rXOq -----END PGP SIGNATURE----- Merge tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs cleanups from Al Viro: "Two unrelated patches - one is a removal of long-obsolete include in overlayfs (it used to need fs/internal.h, but the extern it wanted has been moved back to include/linux/namei.h) and another introduces convenience helper constructing struct qstr by a NUL-terminated string" * tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: add a string-to-qstr constructor fs/overlayfs/namei.c: get rid of include ../internal.h |
||
|
Linus Torvalds
|
03cc3579bc |
21 hotfixes. 8 are cc:stable and the remainder address post-6.13 issues.
13 are for MM and 8 are for non-MM. All are singletons, please see the changelogs for details. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZ54MEgAKCRDdBJ7gKXxA jlhdAP0evTQ9JX+22DDWSVdWFBbnQ74c5ddFXVQc1LO2G2FhFgD+OXhH8E65Nez5 qGWjb4xgjoQTHS7AL4pYEFYqx/cpbAQ= =rN+l -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2025-02-01-03-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "21 hotfixes. 8 are cc:stable and the remainder address post-6.13 issues. 13 are for MM and 8 are for non-MM. All are singletons, please see the changelogs for details" * tag 'mm-hotfixes-stable-2025-02-01-03-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (21 commits) MAINTAINERS: include linux-mm for xarray maintenance revert "xarray: port tests to kunit" MAINTAINERS: add lib/test_xarray.c mailmap, MAINTAINERS, docs: update Carlos's email address mm/hugetlb: fix hugepage allocation for interleaved memory nodes mm: gup: fix infinite loop within __get_longterm_locked mm, swap: fix reclaim offset calculation error during allocation .mailmap: update email address for Christopher Obbard kfence: skip __GFP_THISNODE allocations on NUMA systems nilfs2: fix possible int overflows in nilfs_fiemap() mm: compaction: use the proper flag to determine watermarks kernel: be more careful about dup_mmap() failures and uprobe registering mm/fake-numa: handle cases with no SRAT info mm: kmemleak: fix upper boundary check for physical address objects mailmap: add an entry for Hamza Mahfooz MAINTAINERS: mailmap: update Yosry Ahmed's email address scripts/gdb: fix aarch64 userspace detection in get_current_task mm/vmscan: accumulate nr_demoted for accurate demotion statistics ocfs2: fix incorrect CPU endianness conversion causing mount failure mm/zsmalloc: add __maybe_unused attribute for is_first_zpdesc() ... |
||
liuye
|
1c7b17cf05 |
mm/vmscan: fix hard LOCKUP in function isolate_lru_folios
This fixes the following hard lockup in isolate_lru_folios() during memory
reclaim. If the LRU mostly contains ineligible folios this may trigger
watchdog.
watchdog: Watchdog detected hard LOCKUP on cpu 173
RIP: 0010:native_queued_spin_lock_slowpath+0x255/0x2a0
Call Trace:
_raw_spin_lock_irqsave+0x31/0x40
folio_lruvec_lock_irqsave+0x5f/0x90
folio_batch_move_lru+0x91/0x150
lru_add_drain_per_cpu+0x1c/0x40
process_one_work+0x17d/0x350
worker_thread+0x27b/0x3a0
kthread+0xe8/0x120
ret_from_fork+0x34/0x50
ret_from_fork_asm+0x1b/0x30
lruvec->lru_lock owner：
PID: 2865 TASK: ffff888139214d40 CPU: 40 COMMAND: "kswapd0"
#0 [fffffe0000945e60] crash_nmi_callback at ffffffffa567a555
#1 [fffffe0000945e68] nmi_handle at ffffffffa563b171
#2 [fffffe0000945eb0] default_do_nmi at ffffffffa6575920
#3 [fffffe0000945ed0] exc_nmi at ffffffffa6575af4
#4 [fffffe0000945ef0] end_repeat_nmi at ffffffffa6601dde
[exception RIP: isolate_lru_folios+403]
RIP: ffffffffa597df53 RSP: ffffc90006fb7c28 RFLAGS: 00000002
RAX: 0000000000000001 RBX: ffffc90006fb7c60 RCX: ffffea04a2196f88
RDX: ffffc90006fb7c60 RSI: ffffc90006fb7c60 RDI: ffffea04a2197048
RBP: ffff88812cbd3010 R8: ffffea04a2197008 R9: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffffea04a2197008
R13: ffffea04a2197048 R14: ffffc90006fb7de8 R15: 0000000003e3e937
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
<NMI exception stack>
#5 [ffffc90006fb7c28] isolate_lru_folios at ffffffffa597df53
#6 [ffffc90006fb7cf8] shrink_active_list at ffffffffa597f788
#7 [ffffc90006fb7da8] balance_pgdat at ffffffffa5986db0
#8 [ffffc90006fb7ec0] kswapd at ffffffffa5987354
#9 [ffffc90006fb7ef8] kthread at ffffffffa5748238
crash>
Scenario:
User processe are requesting a large amount of memory and keep page active.
Then a module continuously requests memory from ZONE_DMA32 area.
Memory reclaim will be triggered due to ZONE_DMA32 watermark alarm reached.
However pages in the LRU(active_anon) list are mostly from
the ZONE_NORMAL area.
Reproduce:
Terminal 1: Construct to continuously increase pages active(anon).
mkdir /tmp/memory
mount -t tmpfs -o size=1024000M tmpfs /tmp/memory
dd if=/dev/zero of=/tmp/memory/block bs=4M
tail /tmp/memory/block
Terminal 2:
vmstat -a 1
active will increase.
procs ---memory--- ---swap-- ---io---- -system-- ---cpu--- ...
r b swpd free inact active si so bi bo
1 0 0 1445623076 45898836 83646008 0 0 0
1 0 0 1445623076 43450228 86094616 0 0 0
1 0 0 1445623076 41003480 88541364 0 0 0
1 0 0 1445623076 38557088 90987756 0 0 0
1 0 0 1445623076 36109688 93435156 0 0 0
1 0 0 1445619552 33663256 95881632 0 0 0
1 0 0 1445619804 31217140 98327792 0 0 0
1 0 0 1445619804 28769988 100774944 0 0 0
1 0 0 1445619804 26322348 103222584 0 0 0
1 0 0 1445619804 23875592 105669340 0 0 0
cat /proc/meminfo | head
Active(anon) increase.
MemTotal: 1579941036 kB
MemFree: 1445618500 kB
MemAvailable: 1453013224 kB
Buffers: 6516 kB
Cached: 128653956 kB
SwapCached: 0 kB
Active: 118110812 kB
Inactive: 11436620 kB
Active(anon): 115345744 kB
Inactive(anon): 945292 kB
When the Active(anon) is 115345744 kB, insmod module triggers
the ZONE_DMA32 watermark.
perf record -e vmscan:mm_vmscan_lru_isolate -aR
perf script
isolate_mode=0 classzone=1 order=1 nr_requested=32 nr_scanned=2
nr_skipped=2 nr_taken=0 lru=active_anon
isolate_mode=0 classzone=1 order=1 nr_requested=32 nr_scanned=0
nr_skipped=0 nr_taken=0 lru=active_anon
isolate_mode=0 classzone=1 order=0 nr_requested=32 nr_scanned=28835844
nr_skipped=28835844 nr_taken=0 lru=active_anon
isolate_mode=0 classzone=1 order=1 nr_requested=32 nr_scanned=28835844
nr_skipped=28835844 nr_taken=0 lru=active_anon
isolate_mode=0 classzone=1 order=0 nr_requested=32 nr_scanned=29
nr_skipped=29 nr_taken=0 lru=active_anon
isolate_mode=0 classzone=1 order=0 nr_requested=32 nr_scanned=0
nr_skipped=0 nr_taken=0 lru=active_anon
See nr_scanned=28835844.
28835844 * 4k = 115343376KB approximately equal to 115345744 kB.
If increase Active(anon) to 1000G then insmod module triggers
the ZONE_DMA32 watermark. hard lockup will occur.
In my device nr_scanned = 0000000003e3e937 when hard lockup.
Convert to memory size 0x0000000003e3e937 * 4KB = 261072092 KB.
[ffffc90006fb7c28] isolate_lru_folios at ffffffffa597df53
ffffc90006fb7c30: 0000000000000020 0000000000000000
ffffc90006fb7c40: ffffc90006fb7d40 ffff88812cbd3000
ffffc90006fb7c50: ffffc90006fb7d30 0000000106fb7de8
ffffc90006fb7c60: ffffea04a2197008 ffffea0006ed4a48
ffffc90006fb7c70: 0000000000000000 0000000000000000
ffffc90006fb7c80: 0000000000000000 0000000000000000
ffffc90006fb7c90: 0000000000000000 0000000000000000
ffffc90006fb7ca0: 0000000000000000 0000000003e3e937
ffffc90006fb7cb0: 0000000000000000 0000000000000000
ffffc90006fb7cc0: 8d7c0b56b7874b00 ffff88812cbd3000
About the Fixes:
Why did it take eight years to be discovered?
The problem requires the following conditions to occur:
1. The device memory should be large enough.
2. Pages in the LRU(active_anon) list are mostly from the ZONE_NORMAL area.
3. The memory in ZONE_DMA32 needs to reach the watermark.
If the memory is not large enough, or if the usage design of ZONE_DMA32
area memory is reasonable, this problem is difficult to detect.
notes:
The problem is most likely to occur in ZONE_DMA32 and ZONE_NORMAL,
but other suitable scenarios may also trigger the problem.
Link: https://lkml.kernel.org/r/20241119060842.274072-1-liuye@kylinos.cn
Fixes:
|
||
|
Linus Torvalds
|
1b5f3c51fb |
RISC-V Patches for the 6.14 Merge Window, Part 1
* The PH1520 pinctrl and dwmac drivers are enabeled in defconfig. * A redundant AQRL barrier has been removed from the futex cmpxchg implementation. * Support for the T-Head vector extensions, which includes exposing these extensions to userspace on systems that implement them. * Some more page table information is now printed on die() and systems that cause PA overflows. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmedHIoTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYievXD/4hdt8h+fMM0I9mmJS096YevRJONdfe Wk7D5q4PBwSHISHahuzfphieBhqPVnYkkEd7Vw6xRrLbUnhA41Fe0uvR52dx5UZd 3LwrDV/kjGTD59x6A2Zo9bSs/qPKJ2WHmHwHM21jY5tvcIB2Lo4dF8HT63OrwVNW DxsujLO0jUw+HEwXPsfmUAZJWOPZuUnatl/9CaLMLwQv5N7yiMuz5oYDzJXTLnNh m3Hv3CCtj1EeQPqDoWzz9nZvmAKOwcblSzz6OAy+xrRk1N0N3QFQPbIaRvkI9OVz +wPHQiyx4KZNeAe0csV0uLQRIiXZV8rkCz5UT65s3Bfy3vukvzz+1VBdNnCqiP8Q RpCTcYw62Cr6BWnvyTh+s9bhHb1ijG043nXd/Ty7ZRPCNLKHY6oL1CZ0pgqbTwPs D2U2ZTZFTc35mPrU6QMfbTiUVWCU2XagFhI27Dgj3xh9mkBOQCHwk2Mrzn7uS4iz xGNnrjRnKtuwBrvD68JzxCkEi8INFn2ifbVr44VZrOdTM7XtODGAYrBohQtV62kU 2L+q8DoHYis+0xFbR1wdrY1mRZoe45boUFgwnOpmoBr9ULe584sL+526y7IkkEHu /9hmLPtLg7nyoR/rO1j1Sfg4Eqdwg5HY1TKNfagJZAdu23EDRwrcW1PD0P6vtDv8 j4og8MmL7dTt3A== =HbAQ -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - The PH1520 pinctrl and dwmac drivers are enabeled in defconfig - A redundant AQRL barrier has been removed from the futex cmpxchg implementation - Support for the T-Head vector extensions, which includes exposing these extensions to userspace on systems that implement them - Some more page table information is now printed on die() and systems that cause PA overflows * tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: add a warning when physical memory address overflows riscv/mm/fault: add show_pte() before die() riscv: Add ghostwrite vulnerability selftests: riscv: Support xtheadvector in vector tests selftests: riscv: Fix vector tests riscv: hwprobe: Document thead vendor extensions and xtheadvector extension riscv: hwprobe: Add thead vendor extension probing riscv: vector: Support xtheadvector save/restore riscv: Add xtheadvector instruction definitions riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT RISC-V: define the elements of the VCSR vector CSR riscv: vector: Use vlenb from DT for thead riscv: Add thead and xtheadvector as a vendor extension riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree dt-bindings: cpus: add a thead vlen register length property dt-bindings: riscv: Add xtheadvector ISA extension description RISC-V: Mark riscv_v_init() as __init riscv: defconfig: drop RT_GROUP_SCHED=y riscv/futex: Optimize atomic cmpxchg riscv: defconfig: enable pinctrl and dwmac support for TH1520 |
||
|
Linus Torvalds
|
fd8c09ad0d |
Kbuild updates for v6.14
- Support multiple hook locations for maint scripts of Debian package
- Remove 'cpio' from the build tool requirement
- Introduce gendwarfksyms tool, which computes CRCs for export symbols
based on the DWARF information
- Support CONFIG_MODVERSIONS for Rust
- Resolve all conflicts in the genksyms parser
- Fix several syntax errors in genksyms
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Merge tag 'kbuild-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Support multiple hook locations for maint scripts of Debian package
- Remove 'cpio' from the build tool requirement
- Introduce gendwarfksyms tool, which computes CRCs for export symbols
based on the DWARF information
- Support CONFIG_MODVERSIONS for Rust
- Resolve all conflicts in the genksyms parser
- Fix several syntax errors in genksyms
* tag 'kbuild-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (64 commits)
kbuild: fix Clang LTO with CONFIG_OBJTOOL=n
kbuild: Strip runtime const RELA sections correctly
kconfig: fix memory leak in sym_warn_unmet_dep()
kconfig: fix file name in warnings when loading KCONFIG_DEFCONFIG_LIST
genksyms: fix syntax error for attribute before init-declarator
genksyms: fix syntax error for builtin (u)int*x*_t types
genksyms: fix syntax error for attribute after 'union'
genksyms: fix syntax error for attribute after 'struct'
genksyms: fix syntax error for attribute after abstact_declarator
genksyms: fix syntax error for attribute before nested_declarator
genksyms: fix syntax error for attribute before abstract_declarator
genksyms: decouple ATTRIBUTE_PHRASE from type-qualifier
genksyms: record attributes consistently for init-declarator
genksyms: restrict direct-declarator to take one parameter-type-list
genksyms: restrict direct-abstract-declarator to take one parameter-type-list
genksyms: remove Makefile hack
genksyms: fix last 3 shift/reduce conflicts
genksyms: fix 6 shift/reduce conflicts and 5 reduce/reduce conflicts
genksyms: reduce type_qualifier directly to decl_specifier
genksyms: rename cvar_qualifier to type_qualifier
...
|
||
|
Linus Torvalds
|
9755ffd989 |
block-6.14-20250131
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Merge tag 'block-6.14-20250131' of git://git.kernel.dk/linux
Pull more block updates from Jens Axboe:
- MD pull request via Song:
- Fix a md-cluster regression introduced
- More sysfs race fixes
- Mark anything inside queue freezing as not being able to do IO for
memory allocations
- Fix for a regression introduced in loop in this merge window
- Fix for a regression in queue mapping setups introduced in this merge
window
- Fix for the block dio fops attempting an iov_iter revert upton
getting -EIOCBQUEUED on the read side. This one is going to stable as
well
* tag 'block-6.14-20250131' of git://git.kernel.dk/linux:
block: force noio scope in blk_mq_freeze_queue
block: fix nr_hw_queue update racing with disk addition/removal
block: get rid of request queue ->sysfs_dir_lock
loop: don't clear LO_FLAGS_PARTSCAN on LOOP_SET_STATUS{,64}
md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetime
blk-mq: create correct map for fallback case
block: don't revert iter for -EIOCBQUEUED
|
||
|
Linus Torvalds
|
c82da38b28 |
io_uring-6.14-20250131
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||
|
Linus Torvalds
|
c545cd3276 |
x86/mm changes for v6.14:
- The biggest changes are the TLB flushing scalability optimizations,
to update the mm_cpumask lazily and related changes. This feature
has both a track record and a continued risk of performance regressions,
so it was already delayed by a cycle - but it's all 100% perfect now™.
(Rik van Riel)
- Also miscellaneous fixes and cleanups. (Gautam Somani,
Kirill A. Shutemov, Sebastian Andrzej Siewior)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2025-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
- The biggest changes are the TLB flushing scalability optimizations,
to update the mm_cpumask lazily and related changes.
This feature has both a track record and a continued risk of
performance regressions, so it was already delayed by a cycle - but
it's all 100% perfect now™ (Rik van Riel)
- Also miscellaneous fixes and cleanups. (Gautam Somani, Kirill
Shutemov, Sebastian Andrzej Siewior)
* tag 'x86-mm-2025-01-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Remove unnecessary include of <linux/extable.h>
x86/mtrr: Rename mtrr_overwrite_state() to guest_force_mtrr_state()
x86/mm/selftests: Fix typo in lam.c
x86/mm/tlb: Only trim the mm_cpumask once a second
x86/mm/tlb: Also remove local CPU from mm_cpumask if stale
x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU
x86/mm/tlb: Update mm_cpumask lazily
|
||
|
Linus Torvalds
|
626d1a1e99 |
A fix for a memory leak from Antoine (marked for stable) and two
cleanups from Liang and Slava, all in CephFS. -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmedEZkTHGlkcnlvbW92 QGdtYWlsLmNvbQAKCRBKf944AhHzi7XSB/9bx32SkLccSCzXwXoVdoAAxB9hmPso jY1iWcd6rOGSg2ZGe8HCMi82g5wc69JlUdTE5M8EAeVkwfLzQhYY0fhnPBat7tbO 7bufm7w6ZhQMnnTqaRfOB9D88AfpZV+whMl97/meu6TD7TZnkShO4rQsuCXFikdZ 2ygLBKH+lwHUcoGlEcD5EMTQtARepBy/lAnHcZkeuajOpfWapNBtBHWhXIXCdPiB t5ffg49w770H64tEDlo4GPaQeM9yIraPcNeat21CrhxlKdOxcdZ5Vtz8SZAsk6p2 vCzhS7qt0U3qWeoeztN4Xs8Y9Z3QJULVbVozN1Af3r5kKDyCMX6FJEoa =OoAG -----END PGP SIGNATURE----- Merge tag 'ceph-for-6.14-rc1' of https://github.com/ceph/ceph-client Pull ceph updates from Ilya Dryomov: "A fix for a memory leak from Antoine (marked for stable) and two cleanups from Liang and Slava" * tag 'ceph-for-6.14-rc1' of https://github.com/ceph/ceph-client: ceph: exchange hardcoded value on NAME_MAX ceph: streamline request head structures in MDS client ceph: fix memory leak in ceph_mds_auth_match() |
||
Christoph Hellwig
|
1e1a9cecfa |
block: force noio scope in blk_mq_freeze_queue
When block drivers or the core block code perform allocations with a frozen queue, this could try to recurse into the block device to reclaim memory and deadlock. Thus all allocations done by a process that froze a queue need to be done without __GFP_IO and __GFP_FS. Instead of tying to track all of them down, force a noio scope as part of freezing the queue. Note that nvme is a bit of a mess here due to the non-owner freezes, and they will be addressed separately. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20250131120352.1315351-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Easwar Hariharan
|
bb2784d9ab |
jiffies: Cast to unsigned long in secs_to_jiffies() conversion
While converting users of msecs_to_jiffies(), lkp reported that some range
checks would always be true because of the mismatch between the implied int
value of secs_to_jiffies() vs the unsigned long return value of the
msecs_to_jiffies() calls it was replacing.
Fix this by casting the secs_to_jiffies() input value to unsigned long.
Fixes:
|
||
|
Linus Torvalds
|
350130afc2 |
This pull request contains updates for UBI and UBIFS:
UBI: - New interface to dump detailed erase counters - Fixes around wear-leveling UBIFS: - Minor cleanups - Fix for TNC dumping code -----BEGIN PGP SIGNATURE----- iQJKBAABCAA0FiEEdgfidid8lnn52cLTZvlZhesYu8EFAmeb8cgWHHJpY2hhcmRA c2lnbWEtc3Rhci5hdAAKCRBm+VmF6xi7wRUPEADos2ZdLleilKSAuPV6osItbNjo UAkwFAu4suQMzChZv4V/b7uisu1vBQiOMGiqCZQdU6aIzSUsUlqNQSn8L3f6cPD1 P9Kae1SNCFdlmrfiaduWyxHsl1pxBDfXQ8qt3hcVpNf3LEuYJfu25Fefqavg9IvI Egp0Akk89C4AzNoHUDhzCp8oHAV0nwX5kBN8SVc28G6sb/SQG6+1kU9Op+d6qjoX 8UTfeyETkDIzpx+wjl4bn5o4lagtaJqS/TI6UfhE736KjPUnGK0oEWoHA6AGCqu4 E158pqYh69LHTQ7Wxo7wQ+9Pc9xoE2qTrKUF5b/u9GzsbHMtd4q/pg9Aa8OOcZur ir7pjrRqGkybYGfnhs/b/9Jq7rr7nQNl0j413nmNHb3Wf9+qjwmxYvPQusd6/bLr nHfRymIGCXhuOqgB37t+F+iuQkwfnatVJHJ+Q0r8pJ35LgXj/+PTKZycYF5Jg72q tcth9CXoVCF78e6AJX6GioSOfBUMA5EXK8bqWKr20ZHPbVP8W7gOg7G8PFoNOnj+ KiRMvOqXavPUCcrRxDbp1T50NC+dQYX0FuyCtjuX5vH+0YpgdgvA0trkGPOgMeqw x6py7J+u7jhCWoVecw2DL4ZwEdr4QcvEiTra8i+v4PyRkdrUZenuty+pbeSnUsNk rHKJZkie9Z2xycLJAA== =bgVN -----END PGP SIGNATURE----- Merge tag 'ubifs-for-linus-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs Pull UBI and UBIFS updates from Richard Weinberger: "UBI: - New interface to dump detailed erase counters - Fixes around wear-leveling UBIFS: - Minor cleanups - Fix for TNC dumping code" * tag 'ubifs-for-linus-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: ubi: ubi_get_ec_info: Fix compiling error 'cast specifies array type' ubi: Implement ioctl for detailed erase counters ubi: Expose interface for detailed erase counters ubifs: skip dumping tnc tree when zroot is null ubi: Revert "ubi: wl: Close down wear-leveling before nand is suspended" ubifs: ubifs_dump_leb: remove return from end of void function ubifs: dump_lpt_leb: remove return at end of void function ubi: Add a check for ubi_num |
||
|
Linus Torvalds
|
f55b0671e3 |
More power management updates for 6.14-rc1
- Add missing error handling for syscore_suspend() to the hibernation
core code (Wentao Liang).
- Revert a commit that added unused macros (Andy Shevchenko).
- Synchronize the runtime PM status of devices that were runtime-
suspended before a system-wide suspend and need to be resumed during
the subsequent system-wide resume transition (Rafael Wysocki).
- Clean up the teo cpuidle governor and make the handling of short idle
intervals in it consistent regardless of the properties of idle
states supplied by the cpuidle driver (Rafael Wysocki).
- Fix some boost-related issues in cpufreq (Lifeng Zheng).
- Fix build issues in the s3c64xx and airoha cpufreq drivers (Viresh
Kumar).
- Remove unconditional binding of schedutil governor kthreads to the
affected CPUs if the cpufreq driver indicates that updates can happen
from any CPU (Christian Loehle).
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Merge tag 'pm-6.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are mostly fixes on top of the previously merged power
management material with the addition of some teo cpuidle governor
updates, some of which may also be regarded as fixes:
- Add missing error handling for syscore_suspend() to the hibernation
core code (Wentao Liang)
- Revert a commit that added unused macros (Andy Shevchenko)
- Synchronize the runtime PM status of devices that were runtime-
suspended before a system-wide suspend and need to be resumed
during the subsequent system-wide resume transition (Rafael
Wysocki)
- Clean up the teo cpuidle governor and make the handling of short
idle intervals in it consistent regardless of the properties of
idle states supplied by the cpuidle driver (Rafael Wysocki)
- Fix some boost-related issues in cpufreq (Lifeng Zheng)
- Fix build issues in the s3c64xx and airoha cpufreq drivers (Viresh
Kumar)
- Remove unconditional binding of schedutil governor kthreads to the
affected CPUs if the cpufreq driver indicates that updates can
happen from any CPU (Christian Loehle)"
* tag 'pm-6.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: sleep: core: Synchronize runtime PM status of parents and children
cpufreq: airoha: Depends on OF
PM: Revert "Add EXPORT macros for exporting PM functions"
PM: hibernate: Add error handling for syscore_suspend()
cpufreq/schedutil: Only bind threads if needed
cpufreq: ACPI: Remove set_boost in acpi_cpufreq_cpu_init()
cpufreq: CPPC: Fix wrong max_freq in policy initialization
cpufreq: Introduce a more generic way to set default per-policy boost flag
cpufreq: Fix re-boost issue after hotplugging a CPU
cpufreq: s3c64xx: Fix compilation warning
cpuidle: teo: Skip sleep length computation for low latency constraints
cpuidle: teo: Replace time_span_ns with a flag
cpuidle: teo: Simplify handling of total events count
cpuidle: teo: Skip getting the sleep length if wakeups are very frequent
cpuidle: teo: Simplify counting events used for tick management
cpuidle: teo: Clarify two code comments
cpuidle: teo: Drop local variable prev_intercept_idx
cpuidle: teo: Combine candidate state index checks against 0
cpuidle: teo: Reorder candidate state index checks
cpuidle: teo: Rearrange idle state lookup code
|
||
|
Linus Torvalds
|
c2933b2bef |
First batch of fixes for 6.14. Nothing really stands out,
but as usual there's a slight concentration of fixes for issues
added in the last two weeks before the MW, and driver bugs
from 6.13 which tend to get discovered upon wider distribution.
Including fixes from IPSec, netfilter and Bluetooth.
Current release - regressions:
- net: revert RTNL changes in unregister_netdevice_many_notify()
- Bluetooth: fix possible infinite recursion of btusb_reset
- eth: adjust locking in some old drivers which protect their state
with spinlocks to avoid sleeping in atomic; core protects
netdev state with a mutex now
Previous releases - regressions:
- eth: mlx5e: make sure we pass node ID, not CPU ID to kvzalloc_node()
- eth: bgmac: reduce max frame size to support just 1500 bytes;
the jumbo frame support would previously cause OOB writes,
but now fails outright
- mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted,
avoid false detection of MPTCP blackholing
Previous releases - always broken:
- mptcp: handle fastopen disconnect correctly
- xfrm: make sure skb->sk is a full sock before accessing its fields
- xfrm: fix taking a lock with preempt disabled for RT kernels
- usb: ipheth: improve safety of packet metadata parsing; prevent
potential OOB accesses
- eth: renesas: fix missing rtnl lock in suspend/resume path
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from IPSec, netfilter and Bluetooth.
Nothing really stands out, but as usual there's a slight concentration
of fixes for issues added in the last two weeks before the merge
window, and driver bugs from 6.13 which tend to get discovered upon
wider distribution.
Current release - regressions:
- net: revert RTNL changes in unregister_netdevice_many_notify()
- Bluetooth: fix possible infinite recursion of btusb_reset
- eth: adjust locking in some old drivers which protect their state
with spinlocks to avoid sleeping in atomic; core protects netdev
state with a mutex now
Previous releases - regressions:
- eth:
- mlx5e: make sure we pass node ID, not CPU ID to kvzalloc_node()
- bgmac: reduce max frame size to support just 1500 bytes; the
jumbo frame support would previously cause OOB writes, but now
fails outright
- mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted, avoid
false detection of MPTCP blackholing
Previous releases - always broken:
- mptcp: handle fastopen disconnect correctly
- xfrm:
- make sure skb->sk is a full sock before accessing its fields
- fix taking a lock with preempt disabled for RT kernels
- usb: ipheth: improve safety of packet metadata parsing; prevent
potential OOB accesses
- eth: renesas: fix missing rtnl lock in suspend/resume path"
* tag 'net-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
MAINTAINERS: add Neal to TCP maintainers
net: revert RTNL changes in unregister_netdevice_many_notify()
net: hsr: fix fill_frame_info() regression vs VLAN packets
doc: mptcp: sysctl: blackhole_timeout is per-netns
mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted
netfilter: nf_tables: reject mismatching sum of field_len with set key length
net: sh_eth: Fix missing rtnl lock in suspend/resume path
net: ravb: Fix missing rtnl lock in suspend/resume path
selftests/net: Add test for loading devbound XDP program in generic mode
net: xdp: Disallow attaching device-bound programs in generic mode
tcp: correct handling of extreme memory squeeze
bgmac: reduce max frame size to support just MTU 1500
vsock/test: Add test for connect() retries
vsock/test: Add test for UAF due to socket unbinding
vsock/test: Introduce vsock_connect_fd()
vsock/test: Introduce vsock_bind()
vsock: Allow retrying on connect() failure
vsock: Keep the binding until socket destruction
Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection
Bluetooth: btnxpuart: Fix glitches seen in dual A2DP streaming
...
|
||
|
Linus Torvalds
|
d3d90cc289 |
Provide stable parent and name to ->d_revalidate() instances
Most of the filesystem methods where we care about dentry name
and parent have their stability guaranteed by the callers;
->d_revalidate() is the major exception.
It's easy enough for callers to supply stable values for
expected name and expected parent of the dentry being
validated. That kills quite a bit of boilerplate in
->d_revalidate() instances, along with a bunch of races
where they used to access ->d_name without sufficient
precautions.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-revalidate' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs d_revalidate updates from Al Viro:
"Provide stable parent and name to ->d_revalidate() instances
Most of the filesystem methods where we care about dentry name and
parent have their stability guaranteed by the callers;
->d_revalidate() is the major exception.
It's easy enough for callers to supply stable values for expected name
and expected parent of the dentry being validated. That kills quite a
bit of boilerplate in ->d_revalidate() instances, along with a bunch
of races where they used to access ->d_name without sufficient
precautions"
* tag 'pull-revalidate' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
9p: fix ->rename_sem exclusion
orangefs_d_revalidate(): use stable parent inode and name passed by caller
ocfs2_dentry_revalidate(): use stable parent inode and name passed by caller
nfs: fix ->d_revalidate() UAF on ->d_name accesses
nfs{,4}_lookup_validate(): use stable parent inode passed by caller
gfs2_drevalidate(): use stable parent inode and name passed by caller
fuse_dentry_revalidate(): use stable parent inode and name passed by caller
vfat_revalidate{,_ci}(): use stable parent inode passed by caller
exfat_d_revalidate(): use stable parent inode passed by caller
fscrypt_d_revalidate(): use stable parent inode passed by caller
ceph_d_revalidate(): propagate stable name down into request encoding
ceph_d_revalidate(): use stable parent inode passed by caller
afs_d_revalidate(): use stable name and parent inode passed by caller
Pass parent directory inode and expected name to ->d_revalidate()
generic_ci_d_compare(): use shortname_storage
ext4 fast_commit: make use of name_snapshot primitives
dissolve external_name.u into separate members
make take_dentry_name_snapshot() lockless
dcache: back inline names with a struct-wrapped array of unsigned long
make sure that DNAME_INLINE_LEN is a multiple of word size
|
||
|
Linus Torvalds
|
72deda0abe |
soundwire updates for 6.14
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||
|
Linus Torvalds
|
9071080d1e |
cxl changes for v6.14
- Move HMAT printouts to pr_debug()
- Add CXL type2 support to cxl_dvsec_rr_decode() in preparation for
type2 support
- A series that updates CXL event records to spec r3.1 and related
changes
- Refactoring of cxl_find_regblock_instance() to count regblocks
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Merge tag 'cxl-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull Compute Express Link (CXL) updates from Dave Jiang:
"A tweak to the HMAT output that was acked by Rafael, a prep patch for
CXL type2 devices support that's coming soon, refactoring of the CXL
regblock enumeration code, and a series of patches to update the event
records to CXL spec r3.1:
- Move HMAT printouts to pr_debug()
- Add CXL type2 support to cxl_dvsec_rr_decode() in preparation for
type2 support
- A series that updates CXL event records to spec r3.1 and related
changes
- Refactoring of cxl_find_regblock_instance() to count regblocks"
* tag 'cxl-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/core/regs: Refactor out functions to count regblocks of given type
cxl/test: Update test code for event records to CXL spec rev 3.1
cxl/events: Update Memory Module Event Record to CXL spec rev 3.1
cxl/events: Update DRAM Event Record to CXL spec rev 3.1
cxl/events: Update General Media Event Record to CXL spec rev 3.1
cxl/events: Add Component Identifier formatting for CXL spec rev 3.1
cxl/events: Update Common Event Record to CXL spec rev 3.1
cxl/pci: Add CXL Type 1/2 support to cxl_dvsec_rr_decode()
ACPI/HMAT: Move HMAT messages to pr_debug()
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Linus Torvalds
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92cc9acff7 |
fuse update for 6.14
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Merge tag 'fuse-update-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
"Add support for io-uring communication between kernel and userspace
using IORING_OP_URING_CMD (Bernd Schubert). Following features enable
gains in performance compared to the regular interface:
- Allow processing multiple requests with less syscall overhead
- Combine commit of old and fetch of new fuse request
- CPU/NUMA affinity of queues
Patches were reviewed by several people, including Pavel Begunkov,
io-uring co-maintainer"
* tag 'fuse-update-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: prevent disabling io-uring on active connections
fuse: enable fuse-over-io-uring
fuse: block request allocation until io-uring init is complete
fuse: {io-uring} Prevent mount point hang on fuse-server termination
fuse: Allow to queue bg requests through io-uring
fuse: Allow to queue fg requests through io-uring
fuse: {io-uring} Make fuse_dev_queue_{interrupt,forget} non-static
fuse: {io-uring} Handle teardown of ring entries
fuse: Add io-uring sqe commit and fetch support
fuse: {io-uring} Make hash-list req unique finding functions non-static
fuse: Add fuse-io-uring handling into fuse_copy
fuse: Make fuse_copy non static
fuse: {io-uring} Handle SQEs - register commands
fuse: make args->in_args[0] to be always the header
fuse: Add fuse-io-uring design documentation
fuse: Move request bits
fuse: Move fuse_get_dev to header file
fuse: rename to fuse_dev_end_requests and make non-static
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Christoph Hellwig
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27560b371a |
fs: pack struct kstat better
Move the change_cookie and subvol up to avoid two 4 byte holes. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Nilay Shroff
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fe66286086 |
block: get rid of request queue ->sysfs_dir_lock
The request queue uses ->sysfs_dir_lock for protecting the addition/ deletion of kobject entries under sysfs while we register/unregister blk-mq. However kobject addition/deletion is already protected with kernfs/sysfs internal synchronization primitives. So use of q->sysfs_ dir_lock seems redundant. Moreover, q->sysfs_dir_lock is also used at few other callsites along with q->sysfs_lock for protecting the addition/deletion of kojects. One such example is when we register with sysfs a set of independent access ranges for a disk. Here as well we could get rid off q->sysfs_ dir_lock and only use q->sysfs_lock. The only variable which q->sysfs_dir_lock appears to protect is q-> mq_sysfs_init_done which is set/unset while registering/unregistering blk-mq with sysfs. But use of q->mq_sysfs_init_done could be easily replaced using queue registered bit QUEUE_FLAG_REGISTERED. So with this patch we remove q->sysfs_dir_lock from each callsite and replace q->mq_sysfs_init_done using QUEUE_FLAG_REGISTERED. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://lore.kernel.org/r/20250128143436.874357-2-nilay@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |