| 61307b7b | 19-May-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull mm updates from Andrew Morton:
"The usual shower of singleton fixes and minor series all over MM
Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull mm updates from Andrew Morton:
"The usual shower of singleton fixes and minor series all over MM,
documented (hopefully adequately) in the respective changelogs.
Notable series include:
- Lucas Stach has provided some page-mapping cleanup/consolidation/
maintainability work in the series "mm/treewide: Remove pXd_huge()
API".
- In the series "Allow migrate on protnone reference with
MPOL_PREFERRED_MANY policy", Donet Tom has optimized mempolicy's
MPOL_PREFERRED_MANY mode, yielding almost doubled performance in
one test.
- In their series "Memory allocation profiling" Kent Overstreet and
Suren Baghdasaryan have contributed a means of determining (via
/proc/allocinfo) whereabouts in the kernel memory is being
allocated: number of calls and amount of memory.
- Matthew Wilcox has provided the series "Various significant MM
patches" which does a number of rather unrelated things, but in
largely similar code sites.
- In his series "mm: page_alloc: freelist migratetype hygiene"
Johannes Weiner has fixed the page allocator's handling of
migratetype requests, with resulting improvements in compaction
efficiency.
- In the series "make the hugetlb migration strategy consistent"
Baolin Wang has fixed a hugetlb migration issue, which should
improve hugetlb allocation reliability.
- Liu Shixin has hit an I/O meltdown caused by readahead in a
memory-tight memcg. Addressed in the series "Fix I/O high when
memory almost met memcg limit".
- In the series "mm/filemap: optimize folio adding and splitting"
Kairui Song has optimized pagecache insertion, yielding ~10%
performance improvement in one test.
- Baoquan He has cleaned up and consolidated the early zone
initialization code in the series "mm/mm_init.c: refactor
free_area_init_core()".
- Baoquan has also redone some MM initializatio code in the series
"mm/init: minor clean up and improvement".
- MM helper cleanups from Christoph Hellwig in his series "remove
follow_pfn".
- More cleanups from Matthew Wilcox in the series "Various
page->flags cleanups".
- Vlastimil Babka has contributed maintainability improvements in the
series "memcg_kmem hooks refactoring".
- More folio conversions and cleanups in Matthew Wilcox's series:
"Convert huge_zero_page to huge_zero_folio"
"khugepaged folio conversions"
"Remove page_idle and page_young wrappers"
"Use folio APIs in procfs"
"Clean up __folio_put()"
"Some cleanups for memory-failure"
"Remove page_mapping()"
"More folio compat code removal"
- David Hildenbrand chipped in with "fs/proc/task_mmu: convert
hugetlb functions to work on folis".
- Code consolidation and cleanup work related to GUP's handling of
hugetlbs in Peter Xu's series "mm/gup: Unify hugetlb, part 2".
- Rick Edgecombe has developed some fixes to stack guard gaps in the
series "Cover a guard gap corner case".
- Jinjiang Tu has fixed KSM's behaviour after a fork+exec in the
series "mm/ksm: fix ksm exec support for prctl".
- Baolin Wang has implemented NUMA balancing for multi-size THPs.
This is a simple first-cut implementation for now. The series is
"support multi-size THP numa balancing".
- Cleanups to vma handling helper functions from Matthew Wilcox in
the series "Unify vma_address and vma_pgoff_address".
- Some selftests maintenance work from Dev Jain in the series
"selftests/mm: mremap_test: Optimizations and style fixes".
- Improvements to the swapping of multi-size THPs from Ryan Roberts
in the series "Swap-out mTHP without splitting".
- Kefeng Wang has significantly optimized the handling of arm64's
permission page faults in the series
"arch/mm/fault: accelerate pagefault when badaccess"
"mm: remove arch's private VM_FAULT_BADMAP/BADACCESS"
- GUP cleanups from David Hildenbrand in "mm/gup: consistently call
it GUP-fast".
- hugetlb fault code cleanups from Vishal Moola in "Hugetlb fault
path to use struct vm_fault".
- selftests build fixes from John Hubbard in the series "Fix
selftests/mm build without requiring "make headers"".
- Memory tiering fixes/improvements from Ho-Ren (Jack) Chuang in the
series "Improved Memory Tier Creation for CPUless NUMA Nodes".
Fixes the initialization code so that migration between different
memory types works as intended.
- David Hildenbrand has improved follow_pte() and fixed an errant
driver in the series "mm: follow_pte() improvements and acrn
follow_pte() fixes".
- David also did some cleanup work on large folio mapcounts in his
series "mm: mapcount for large folios + page_mapcount() cleanups".
- Folio conversions in KSM in Alex Shi's series "transfer page to
folio in KSM".
- Barry Song has added some sysfs stats for monitoring multi-size
THP's in the series "mm: add per-order mTHP alloc and swpout
counters".
- Some zswap cleanups from Yosry Ahmed in the series "zswap
same-filled and limit checking cleanups".
- Matthew Wilcox has been looking at buffer_head code and found the
documentation to be lacking. The series is "Improve buffer head
documentation".
- Multi-size THPs get more work, this time from Lance Yang. His
series "mm/madvise: enhance lazyfreeing with mTHP in madvise_free"
optimizes the freeing of these things.
- Kemeng Shi has added more userspace-visible writeback
instrumentation in the series "Improve visibility of writeback".
- Kemeng Shi then sent some maintenance work on top in the series
"Fix and cleanups to page-writeback".
- Matthew Wilcox reduces mmap_lock traffic in the anon vma code in
the series "Improve anon_vma scalability for anon VMAs". Intel's
test bot reported an improbable 3x improvement in one test.
- SeongJae Park adds some DAMON feature work in the series
"mm/damon: add a DAMOS filter type for page granularity access recheck"
"selftests/damon: add DAMOS quota goal test"
- Also some maintenance work in the series
"mm/damon/paddr: simplify page level access re-check for pageout"
"mm/damon: misc fixes and improvements"
- David Hildenbrand has disabled some known-to-fail selftests ni the
series "selftests: mm: cow: flag vmsplice() hugetlb tests as
XFAIL".
- memcg metadata storage optimizations from Shakeel Butt in "memcg:
reduce memory consumption by memcg stats".
- DAX fixes and maintenance work from Vishal Verma in the series
"dax/bus.c: Fixups for dax-bus locking""
* tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (426 commits)
memcg, oom: cleanup unused memcg_oom_gfp_mask and memcg_oom_order
selftests/mm: hugetlb_madv_vs_map: avoid test skipping by querying hugepage size at runtime
mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_wp
mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_fault
selftests: cgroup: add tests to verify the zswap writeback path
mm: memcg: make alloc_mem_cgroup_per_node_info() return bool
mm/damon/core: fix return value from damos_wmark_metric_value
mm: do not update memcg stats for NR_{FILE/SHMEM}_PMDMAPPED
selftests: cgroup: remove redundant enabling of memory controller
Docs/mm/damon/maintainer-profile: allow posting patches based on damon/next tree
Docs/mm/damon/maintainer-profile: change the maintainer's timezone from PST to PT
Docs/mm/damon/design: use a list for supported filters
Docs/admin-guide/mm/damon/usage: fix wrong schemes effective quota update command
Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file
selftests/damon: classify tests for functionalities and regressions
selftests/damon/_damon_sysfs: use 'is' instead of '==' for 'None'
selftests/damon/_damon_sysfs: find sysfs mount point from /proc/mounts
selftests/damon/_damon_sysfs: check errors from nr_schemes file reads
mm/damon/core: initialize ->esz_bp from damos_quota_init_priv()
selftests/damon: add a test for DAMOS quota goal
...
show more ...
/linux/Documentation/ABI/testing/sysfs-kernel-mm-damon/linux/Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage/linux/Documentation/admin-guide/blockdev/zram.rst/linux/Documentation/admin-guide/cgroup-v1/memory.rst/linux/Documentation/admin-guide/kernel-parameters.txt/linux/Documentation/admin-guide/mm/damon/usage.rst/linux/Documentation/admin-guide/mm/hugetlbpage.rst/linux/Documentation/admin-guide/mm/transhuge.rst/linux/Documentation/admin-guide/mm/zswap.rst/linux/Documentation/admin-guide/sysctl/vm.rst/linux/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml/linux/Documentation/devicetree/bindings/clock/fixed-clock.yaml/linux/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml/linux/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml/linux/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml/linux/Documentation/devicetree/bindings/clock/nxp,imx95-display-master-csr.yaml/linux/Documentation/devicetree/bindings/clock/qcom,hfpll.yaml/linux/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml/linux/Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml/linux/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml/linux/Documentation/devicetree/bindings/clock/st,stm32mp25-rcc.yaml/linux/Documentation/devicetree/bindings/power/supply/maxim,max8903.yaml/linux/Documentation/driver-api/crypto/iaa/iaa-crypto.rst/linux/Documentation/filesystems/api-summary.rst/linux/Documentation/filesystems/buffer.rst/linux/Documentation/filesystems/index.rst/linux/Documentation/filesystems/proc.rst/linux/Documentation/mm/allocation-profiling.rst/linux/Documentation/mm/arch_pgtable_helpers.rst/linux/Documentation/mm/damon/design.rst/linux/Documentation/mm/damon/maintainer-profile.rst/linux/Documentation/mm/index.rst/linux/Documentation/mm/page_table_check.rst/linux/Documentation/mm/transhuge.rst/linux/Documentation/mm/vmemmap_dedup.rst/linux/Documentation/netlink/specs/nfsd.yaml/linux/Documentation/translations/zh_CN/core-api/cachetlb.rst/linux/MAINTAINERS/linux/arch/alpha/kernel/osf_sys.c/linux/arch/alpha/kernel/pci_iommu.c/linux/arch/alpha/lib/checksum.c/linux/arch/alpha/lib/fpreg.c/linux/arch/arc/include/asm/mmu-arcv2.h/linux/arch/arc/mm/mmap.c/linux/arch/arm/Kconfig/linux/arch/arm/include/asm/hugetlb.h/linux/arch/arm/include/asm/pgtable-2level.h/linux/arch/arm/include/asm/pgtable-3level-hwdef.h/linux/arch/arm/include/asm/pgtable-3level.h/linux/arch/arm/kernel/irq.c/linux/arch/arm/kernel/traps.c/linux/arch/arm/lib/uaccess_with_memcpy.c/linux/arch/arm/mm/Makefile/linux/arch/arm/mm/fault.c/linux/arch/arm/mm/mmap.c/linux/arch/arm64/Kconfig/linux/arch/arm64/include/asm/hugetlb.h/linux/arch/arm64/include/asm/io.h/linux/arch/arm64/include/asm/pgtable.h/linux/arch/arm64/kernel/efi.c/linux/arch/arm64/kernel/io.c/linux/arch/arm64/mm/contpte.c/linux/arch/arm64/mm/fault.c/linux/arch/arm64/mm/hugetlbpage.c/linux/arch/arm64/mm/mteswap.c/linux/arch/csky/abiv1/mmap.c/linux/arch/loongarch/Kconfig/linux/arch/loongarch/include/asm/kfence.h/linux/arch/loongarch/mm/hugetlbpage.c/linux/arch/loongarch/mm/mmap.c/linux/arch/mips/Kconfig/linux/arch/mips/include/asm/pgtable-32.h/linux/arch/mips/include/asm/pgtable-64.h/linux/arch/mips/jazz/jazzdma.c/linux/arch/mips/mm/hugetlbpage.c/linux/arch/mips/mm/mmap.c/linux/arch/mips/mm/tlb-r4k.c/linux/arch/parisc/kernel/sys_parisc.c/linux/arch/parisc/mm/hugetlbpage.c/linux/arch/powerpc/Kconfig/linux/arch/powerpc/include/asm/book3s/64/pgtable-4k.h/linux/arch/powerpc/include/asm/book3s/64/pgtable-64k.h/linux/arch/powerpc/include/asm/book3s/64/pgtable.h/linux/arch/powerpc/include/asm/mmu.h/linux/arch/powerpc/include/asm/nohash/pgtable.h/linux/arch/powerpc/kernel/dma-iommu.c/linux/arch/powerpc/kernel/fadump.c/linux/arch/powerpc/kernel/iommu.c/linux/arch/powerpc/mm/book3s64/pgtable.c/linux/arch/powerpc/mm/book3s64/slice.c/linux/arch/powerpc/mm/fault.c/linux/arch/powerpc/mm/mem.c/linux/arch/powerpc/mm/pgtable_64.c/linux/arch/powerpc/platforms/ps3/system-bus.c/linux/arch/powerpc/platforms/pseries/vio.c/linux/arch/riscv/Kconfig/linux/arch/riscv/include/asm/hugetlb.h/linux/arch/riscv/include/asm/pgtable.h/linux/arch/riscv/kernel/elf_kexec.c/linux/arch/riscv/kernel/probes/kprobes.c/linux/arch/riscv/mm/fault.c/linux/arch/riscv/mm/hugetlbpage.c/linux/arch/s390/Kconfig/linux/arch/s390/include/asm/hugetlb.h/linux/arch/s390/include/asm/io.h/linux/arch/s390/include/asm/pgtable.h/linux/arch/s390/kernel/cert_store.c/linux/arch/s390/kernel/ipl.c/linux/arch/s390/mm/fault.c/linux/arch/s390/mm/hugetlbpage.c/linux/arch/s390/mm/mmap.c/linux/arch/s390/pci/pci.c/linux/arch/s390/pci/pci_mmio.c/linux/arch/sh/Kconfig/linux/arch/sh/include/asm/hugetlb.h/linux/arch/sh/mm/cache-sh4.c/linux/arch/sh/mm/cache.c/linux/arch/sh/mm/hugetlbpage.c/linux/arch/sh/mm/mmap.c/linux/arch/sparc/include/asm/pgtable_64.h/linux/arch/sparc/kernel/sys_sparc_32.c/linux/arch/sparc/kernel/sys_sparc_64.c/linux/arch/sparc/mm/hugetlbpage.c/linux/arch/sparc/mm/tlb.c/linux/arch/um/include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lib/Kconfig.debug/linux/lib/Makefile/linux/lib/alloc_tag.c/linux/lib/codetag.c/linux/lib/iomap_copy.c/linux/lib/rhashtable.c/linux/lib/test_hmm.c/linux/lib/test_xarray.c/linux/lib/xarray.c/linux/mm/Kconfig/linux/mm/Makefile/linux/mm/backing-dev.c/linux/mm/cma.c/linux/mm/compaction.c/linux/mm/damon/core.c/linux/mm/damon/paddr.c/linux/mm/damon/sysfs-schemes.c/linux/mm/debug.c/linux/mm/debug_page_alloc.c/linux/mm/debug_vm_pgtable.c/linux/mm/filemap.c/linux/mm/folio-compat.c/linux/mm/gup.c/linux/mm/hmm.c/linux/mm/huge_memory.c/linux/mm/hugetlb.c/linux/mm/hugetlb_cgroup.c/linux/mm/hugetlb_vmemmap.c/linux/mm/hwpoison-inject.c/linux/mm/internal.h/linux/mm/kasan/hw_tags.c/linux/mm/kfence/core.c/linux/mm/kfence/kfence.h/linux/mm/khugepaged.c/linux/mm/kmemleak.c/linux/mm/ksm.c/linux/mm/madvise.c/linux/mm/memcontrol.c/linux/mm/memory-failure.c/linux/mm/memory-tiers.c/linux/mm/memory.c/linux/mm/memory_hotplug.c/linux/mm/mempolicy.c/linux/mm/mempool.c/linux/mm/memremap.c/linux/mm/migrate.c/linux/mm/migrate_device.c/linux/mm/mlock.c/linux/mm/mm_init.c/linux/mm/mmap.c/linux/mm/mprotect.c/linux/mm/mremap.c/linux/mm/nommu.c/linux/mm/oom_kill.c/linux/mm/page-writeback.c/linux/mm/page_alloc.c/linux/mm/page_ext.c/linux/mm/page_io.c/linux/mm/page_isolation.c/linux/mm/page_owner.c/linux/mm/page_table_check.c/linux/mm/page_vma_mapped.c/linux/mm/percpu-internal.h/linux/mm/percpu-vm.c/linux/mm/percpu.c/linux/mm/pgtable-generic.c/linux/mm/readahead.c/linux/mm/rmap.c/linux/mm/shmem.c/linux/mm/show_mem.c/linux/mm/slab.h/linux/mm/slab_common.c/linux/mm/slub.c/linux/mm/sparse.c/linux/mm/swap.c/linux/mm/swap_slots.c/linux/mm/swap_state.c/linux/mm/swapfile.c/linux/mm/truncate.c/linux/mm/userfaultfd.c/linux/mm/util.c/linux/mm/vmalloc.c/linux/mm/vmscan.c/linux/mm/workingset.c/linux/mm/z3fold.c/linux/mm/zbud.c/linux/mm/zpool.c/linux/mm/zsmalloc.c/linux/mm/zswap.c/linux/net/sunrpc/auth_gss/auth_gss_internal.h/linux/net/sunrpc/auth_gss/svcauth_gss.c/linux/net/sunrpc/svc.c/linux/net/sunrpc/svc_xprt.chelpers.c/linux/scripts/kallsyms.c/linux/scripts/kernel-doc/linux/scripts/module.lds.S/linux/security/Kconfig.hardening/linux/sound/pci/hda/cs35l41_hda.c/linux/tools/cgroup/memcg_slabinfo.py/linux/tools/include/uapi/linux/memfd.h/linux/tools/include/uapi/linux/userfaultfd.h/linux/tools/testing/selftests/cgroup/test_zswap.c/linux/tools/testing/selftests/damon/Makefile/linux/tools/testing/selftests/damon/_damon_sysfs.py/linux/tools/testing/selftests/damon/damos_quota_goal.py/linux/tools/testing/selftests/lib.mk/linux/tools/testing/selftests/memfd/fuse_test.c/linux/tools/testing/selftests/memfd/memfd_test.c/linux/tools/testing/selftests/mm/Makefile/linux/tools/testing/selftests/mm/cow.c/linux/tools/testing/selftests/mm/gup_longterm.c/linux/tools/testing/selftests/mm/hugetlb_madv_vs_map.c/linux/tools/testing/selftests/mm/ksm_functional_tests.c/linux/tools/testing/selftests/mm/memfd_secret.c/linux/tools/testing/selftests/mm/mlock2-tests.c/linux/tools/testing/selftests/mm/mremap_test.c/linux/tools/testing/selftests/mm/run_vmtests.sh/linux/tools/testing/selftests/mm/soft-dirty.c/linux/tools/testing/selftests/mm/virtual_address_range.c/linux/tools/testing/selftests/x86/test_shadow_stack.c/linux/tools/writeback/wb_monitor.py/linux/virt/kvm/kvm_main.c |
| 97ab3e8e | 01-May-2024 |
Danilo Krummrich <dakr@redhat.com> |
rust: alloc: fix dangling pointer in VecExt<T>::reserve()
Currently, a Vec<T>'s ptr value, after calling Vec<T>::new(), is
initialized to Unique::dangling(). Hence, in VecExt<T>::reserve(), we're
pa
rust: alloc: fix dangling pointer in VecExt<T>::reserve()
Currently, a Vec<T>'s ptr value, after calling Vec<T>::new(), is
initialized to Unique::dangling(). Hence, in VecExt<T>::reserve(), we're
passing a dangling pointer (instead of NULL) to krealloc() whenever a new
Vec<T>'s backing storage is allocated through VecExt<T> extension
functions.
This only works as long as align_of::<T>(), used by Unique::dangling() to
derive the dangling pointer, resolves to a value between 0x0 and
ZERO_SIZE_PTR (0x10) and krealloc() hence treats it the same as a NULL
pointer however.
This isn't a case we should rely on, since there may be types whose
alignment may exceed the range still covered by krealloc(), plus other
kernel allocators are not as tolerant either.
Instead, pass a real NULL pointer to krealloc_aligned() if Vec<T>'s
capacity is zero.
Fixes: 5ab560ce12ed ("rust: alloc: update `VecExt` to take allocation flags")
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Wedson Almeida Filho <walmeida@microsoft.com>
Link: https://lore.kernel.org/r/20240501134834.22323-1-dakr@redhat.com
[ Solved `use` conflict and applied the `if`-instead-of-`match` change
discussed in the list. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
show more ...
|
| 00280272 | 01-Apr-2024 |
Miguel Ojeda <ojeda@kernel.org> |
rust: kernel: remove redundant imports
Rust's `unused_imports` lint covers both unused and redundant imports.
In the upcoming 1.78.0, the lint detects more cases of redundant imports
[1], e.g.:
rust: kernel: remove redundant imports
Rust's `unused_imports` lint covers both unused and redundant imports.
In the upcoming 1.78.0, the lint detects more cases of redundant imports
[1], e.g.:
error: the item `bindings` is imported redundantly
--> rust/kernel/print.rs:38:9
|
38 | use crate::bindings;
| ^^^^^^^^^^^^^^^ the item `bindings` is already defined by prelude
Most cases are `use crate::bindings`, plus a few other items like `Box`.
Thus clean them up.
Note that, in the `bindings` case, the message "defined by prelude"
above means the extern prelude, i.e. the `--extern` flags we pass.
Link: https://github.com/rust-lang/rust/pull/117772 [1]
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240401212303.537355-3-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
show more ...
|
| 7c81aa85 | 01-Apr-2024 |
Miguel Ojeda <ojeda@kernel.org> |
rust: sync: implement `Default` for `LockClassKey`
In the upcoming Rust 1.78.0, Clippy suggests to implement `Default` even
when `new()` is `const`, since `Default::default()` may call `const`
funct
rust: sync: implement `Default` for `LockClassKey`
In the upcoming Rust 1.78.0, Clippy suggests to implement `Default` even
when `new()` is `const`, since `Default::default()` may call `const`
functions even if it is not `const` itself [1]:
error: you should consider adding a `Default` implementation for `LockClassKey`
--> rust/kernel/sync.rs:31:5
|
31 | / pub const fn new() -> Self {
32 | | Self(Opaque::uninit())
33 | | }
| |_____^
Thus implement it.
Link: https://github.com/rust-lang/rust-clippy/pull/10903 [1]
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20240401212303.537355-2-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
show more ...
|
| 4a2ae880 | 12-Apr-2024 |
Nell Shamrell-Harrington <nells@linux.microsoft.com> |
rust: remove unneeded `kernel::prelude` imports from doctests
Rust doctests implicitly include `kernel::prelude::*`.
Removes explicit `kernel::prelude` imports from doctests.
Suggested-by: Miguel
rust: remove unneeded `kernel::prelude` imports from doctests
Rust doctests implicitly include `kernel::prelude::*`.
Removes explicit `kernel::prelude` imports from doctests.
Suggested-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://github.com/Rust-for-Linux/linux/issues/1064
Signed-off-by: Nell Shamrell-Harrington <nells@linux.microsoft.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20240411225331.274662-1-nells@linux.microsoft.com
[ Add it back for `module_phy_driver`'s example since it is within a `mod`,
and thus it cannot be removed. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
show more ...
|
| ea175b2d | 14-Apr-2024 |
Raghav Narang <dev@raxyte.com> |
rust: update `dbg!()` to format column number
In Rust 1.76.0, the `dbg!()` macro was updated to also format the column
number. The reason cited was usage of a few characters worth of
horizontal spac
rust: update `dbg!()` to format column number
In Rust 1.76.0, the `dbg!()` macro was updated to also format the column
number. The reason cited was usage of a few characters worth of
horizontal space while allowing direct jumps to the source location. [1]
Link: https://github.com/rust-lang/rust/pull/114962 [1]
Link: https://github.com/Rust-for-Linux/linux/issues/1065
Signed-off-by: Raghav Narang <dev@raxyte.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/r/eba70259-9b10-4bf7-ac4f-d7accf6b8891@smtp-relay.sendinblue.com
[ Fixed commit author name and removed spurious newline in message. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| 84373132 | 11-Apr-2024 |
Thorsten Blum <thorsten.blum@toblux.com> |
rust: helpers: Fix grammar in comment
s/directly the bindings/the bindings directly/
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-b
rust: helpers: Fix grammar in comment
s/directly the bindings/the bindings directly/
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240411205428.537700-1-thorsten.blum@toblux.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| 9218cf82 | 03-Apr-2024 |
Benno Lossin <benno.lossin@proton.me> |
rust: init: change the generated name of guard variables
The initializers created by the `[try_][pin_]init!` macros utilize the
guard pattern to drop already initialized fields, when initialization
rust: init: change the generated name of guard variables
The initializers created by the `[try_][pin_]init!` macros utilize the
guard pattern to drop already initialized fields, when initialization
fails mid-way. These guards are generated to have the same name as the
field that they handle. To prevent namespacing issues [1] when the
field name is the same as e.g. a constant name, add `__` as a prefix
and `_guard` as the suffix.
[ Gary says:
"Here's the simplified example:
```
macro_rules! f {
() => {
let a = 1;
let _: u32 = a;
}
}
const a: u64 = 1;
fn main() {
f!();
}
```
The `a` in `f` have a different hygiene so normally it is scoped to the
macro expansion and wouldn't escape. Interestingly a constant is still
preferred despite the hygiene so constants escaped into the macro,
leading to the error."
- Miguel ]
Signed-off-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/rust-for-linux/1e8a2a1f-abbf-44ba-8344-705a9cbb1627@proton.me/ [1]
Link: https://lore.kernel.org/r/20240403194321.88716-1-benno.lossin@proton.me
[ Added Benno's link and Gary's simplified example. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| a0a4e170 | 02-Apr-2024 |
Alice Ryhl <aliceryhl@google.com> |
rust: sync: add `Arc::into_unique_or_drop`
Decrement the refcount of an `Arc`, but handle the case where it hits
zero by taking ownership of the now-unique `Arc`, instead of destroying
and deallocat
rust: sync: add `Arc::into_unique_or_drop`
Decrement the refcount of an `Arc`, but handle the case where it hits
zero by taking ownership of the now-unique `Arc`, instead of destroying
and deallocating it.
This is a dependency of the linked list that Rust Binder uses. The
linked list uses this method as part of its `ListArc` abstraction [1].
Boqun Feng has authored the examples.
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20240402-linked-list-v1-1-b1c59ba7ae3b@google.com [1]
Co-developed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240402-arc-for-list-v4-2-54db6440a9a9@google.com
[ Replace `try_new` with `new` in example since we now have the new
allocation APIs. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| 51f6af86 | 02-Apr-2024 |
Alice Ryhl <aliceryhl@google.com> |
rust: sync: add `ArcBorrow::from_raw`
Allows access to a value in an `Arc` that is currently held as a raw
pointer due to use of `Arc::into_raw`, without destroying or otherwise
consuming that raw p
rust: sync: add `ArcBorrow::from_raw`
Allows access to a value in an `Arc` that is currently held as a raw
pointer due to use of `Arc::into_raw`, without destroying or otherwise
consuming that raw pointer.
This is a dependency of the linked list that Rust Binder uses. The
linked list uses this method when iterating over the linked list [1].
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20240402-linked-list-v1-6-b1c59ba7ae3b@google.com [1]
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240402-arc-for-list-v4-1-54db6440a9a9@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| be2ca1e0 | 01-Apr-2024 |
Boqun Feng <boqun.feng@gmail.com> |
rust: types: Make Opaque::get const
To support a potential usage:
static foo: Opaque<Foo> = ..; // Or defined in an extern block.
...
fn bar() {
let ptr = foo.get();
}
`O
rust: types: Make Opaque::get const
To support a potential usage:
static foo: Opaque<Foo> = ..; // Or defined in an extern block.
...
fn bar() {
let ptr = foo.get();
}
`Opaque::get` need to be `const`, otherwise compiler will complain
because calls on statics are limited to const functions.
Also `Opaque::get` should be naturally `const` since it's a composition
of two `const` functions: `UnsafeCell::get` and `ptr::cast`.
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Wedson Almeida Filho <walmeida@microsoft.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Link: https://lore.kernel.org/r/20240401214543.1242286-1-boqun.feng@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| ddd91209 | 12-Apr-2024 |
Boqun Feng <boqun.feng@gmail.com> |
rust: time: doc: Add missing C header links
The definitions related to jiffies are at linux/jiffies.h, and the
definitions related to ktime_t are at linux/ktime.h, since
`kernel::time` provides the
rust: time: doc: Add missing C header links
The definitions related to jiffies are at linux/jiffies.h, and the
definitions related to ktime_t are at linux/ktime.h, since
`kernel::time` provides the functionality dealing with jiffies and
ktime_t, it makes sense to add links to them from Rust's time module.
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20240411230801.1504496-2-boqun.feng@gmail.com
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| 19843452 | 19-Apr-2024 |
Aswin Unnikrishnan <aswinunni01@gmail.com> |
rust: remove `params` from `module` macro example
Remove argument `params` from the `module` macro example, because the
macro does not currently support module parameters since it was not sent
with
rust: remove `params` from `module` macro example
Remove argument `params` from the `module` macro example, because the
macro does not currently support module parameters since it was not sent
with the initial merge.
Signed-off-by: Aswin Unnikrishnan <aswinunni01@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Cc: stable@vger.kernel.org
Fixes: 1fbde52bde73 ("rust: add `macros` crate")
Link: https://lore.kernel.org/r/20240419215015.157258-1-aswinunni01@gmail.com
[ Reworded slightly. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| 50cfe93b | 22-Apr-2024 |
Miguel Ojeda <ojeda@kernel.org> |
kbuild: rust: remove unneeded `@rustc_cfg` to avoid ICE
When KUnit tests are enabled, under very big kernel configurations
(e.g. `allyesconfig`), we can trigger a `rustdoc` ICE [1]:
RUSTDOC T
kbuild: rust: remove unneeded `@rustc_cfg` to avoid ICE
When KUnit tests are enabled, under very big kernel configurations
(e.g. `allyesconfig`), we can trigger a `rustdoc` ICE [1]:
RUSTDOC TK rust/kernel/lib.rs
error: the compiler unexpectedly panicked. this is a bug.
The reason is that this build step has a duplicated `@rustc_cfg` argument,
which contains the kernel configuration, and thus a lot of arguments. The
factor 2 happens to be enough to reach the ICE.
Thus remove the unneeded `@rustc_cfg`. By doing so, we clean up the
command and workaround the ICE.
The ICE has been fixed in the upcoming Rust 1.79 [2].
Cc: stable@vger.kernel.org
Fixes: a66d733da801 ("rust: support running Rust documentation tests as KUnit ones")
Link: https://github.com/rust-lang/rust/issues/122722 [1]
Link: https://github.com/rust-lang/rust/pull/122840 [2]
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240422091215.526688-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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| 323617f6 | 28-Mar-2024 |
Wedson Almeida Filho <walmeida@microsoft.com> |
rust: kernel: require `Send` for `Module` implementations
The thread that calls the module initialisation code when a module is
loaded is not guaranteed [in fact, it is unlikely] to be the same one
rust: kernel: require `Send` for `Module` implementations
The thread that calls the module initialisation code when a module is
loaded is not guaranteed [in fact, it is unlikely] to be the same one
that calls the module cleanup code on module unload, therefore, `Module`
implementations must be `Send` to account for them moving from one
thread to another implicitly.
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Cc: stable@vger.kernel.org # 6.8.x: df70d04d5697: rust: phy: implement `Send` for `Registration`
Cc: stable@vger.kernel.org
Fixes: 247b365dc8dc ("rust: add `kernel` crate")
Link: https://lore.kernel.org/r/20240328195457.225001-3-wedsonaf@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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