mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-27 12:57:53 +00:00
8632 commits
Author | SHA1 | Message | Date | |
---|---|---|---|---|
Linus Torvalds
|
9a719c2145 |
bitmap patches for v6.7
Hi Linus, Please pull patches for v6.7. This request includes "bitmap: cleanup bitmap_*_region() implementation" series, and scattered cleanup patches. Thanks, Yury -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEi8GdvG6xMhdgpu/4sUSA/TofvsgFAmVCgS4ACgkQsUSA/Tof vsjIdQv+PnSQ5Lq6ISWYqhV0I60LPLWjf4jm5bgHUT/gKWjUIqYJmYfHD1M1MTkJ +qsLdywshSdE62TG/Y0r/i9el8IedJOP1T0Oi9RpVPjV/vZd7BgGYSLfOsZnvV4e wmIVKKE5A+uAcKHw2+9MWoK+4LxG6YRWb6AKGroghz3GU70hFz9xY+kwsfP1NxLd pqalPYGyyfkte+7uSchwMKfJVkXA5TwxbasB8Qd8s0fM0DNOLcoZbjFxt2ufZzBY a57I12nheYagBmLfMPjOT3TR/g9XXQnn8pxxhNM0XJeu73WDno+ZMTmH80SzDuv7 P6+6KglUHY1IHyeQ0chgwZDusxkCKfR9W6fQ5IhGYJuZkKtzbdsjVf38jJbWwp8n ZIFu8n1kkYN7Ap4veOJ32N/cDRN0yR5f2pWxTw2hPifn5Rftl26PhidH0Bjz/F+p q4/dIxsGPA6bsQCfZ7XNfGf9pARwLjcHgZt8MMwj2RA2hv+1qyefRav94jUrkyPT 9gaBkZHi =L4AW -----END PGP SIGNATURE----- Merge tag 'bitmap-for-6.7' of https://github.com/norov/linux Pull bitmap updates from Yury Norov: "This includes the 'bitmap: cleanup bitmap_*_region() implementation' series, and scattered cleanup patches" * tag 'bitmap-for-6.7' of https://github.com/norov/linux: buildid: reduce header file dependencies for module bitmap: move bitmap_*_region() functions to bitmap.h bitmap: drop _reg_op() function bitmap: replace _reg_op(REG_OP_ISFREE) with find_next_bit() bitmap: replace _reg_op(REG_OP_RELEASE) with bitmap_clear() bitmap: replace _reg_op(REG_OP_ALLOC) with bitmap_set() bitmap: fix opencoded bitmap_allocate_region() bitmap: add test for bitmap_*_region() functions bitmap: align __reg_op() wrappers with modern coding style lib/bitmap: split-out string-related operations to a separate files bitmap: Remove dead code, i.e. bitmap_copy_le() bitmap: Fix a typo ("identify map") cpumask: kernel-doc cleanups and additions |
||
Linus Torvalds
|
8f6f76a6a2 |
As usual, lots of singleton and doubleton patches all over the tree and
there's little I can say which isn't in the individual changelogs. The lengthier patch series are - "kdump: use generic functions to simplify crashkernel reservation in arch", from Baoquan He. This is mainly cleanups and consolidation of the "crashkernel=" kernel parameter handling. - After much discussion, David Laight's "minmax: Relax type checks in min() and max()" is here. Hopefully reduces some typecasting and the use of min_t() and max_t(). - A group of patches from Oleg Nesterov which clean up and slightly fix our handling of reads from /proc/PID/task/... and which remove task_struct.therad_group. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZUQP9wAKCRDdBJ7gKXxA jmOAAQDh8sxagQYocoVsSm28ICqXFeaY9Co1jzBIDdNesAvYVwD/c2DHRqJHEiS4 63BNcG3+hM9nwGJHb5lyh5m79nBMRg0= =On4u -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: "As usual, lots of singleton and doubleton patches all over the tree and there's little I can say which isn't in the individual changelogs. The lengthier patch series are - 'kdump: use generic functions to simplify crashkernel reservation in arch', from Baoquan He. This is mainly cleanups and consolidation of the 'crashkernel=' kernel parameter handling - After much discussion, David Laight's 'minmax: Relax type checks in min() and max()' is here. Hopefully reduces some typecasting and the use of min_t() and max_t() - A group of patches from Oleg Nesterov which clean up and slightly fix our handling of reads from /proc/PID/task/... and which remove task_struct.thread_group" * tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (64 commits) scripts/gdb/vmalloc: disable on no-MMU scripts/gdb: fix usage of MOD_TEXT not defined when CONFIG_MODULES=n .mailmap: add address mapping for Tomeu Vizoso mailmap: update email address for Claudiu Beznea tools/testing/selftests/mm/run_vmtests.sh: lower the ptrace permissions .mailmap: map Benjamin Poirier's address scripts/gdb: add lx_current support for riscv ocfs2: fix a spelling typo in comment proc: test ProtectionKey in proc-empty-vm test proc: fix proc-empty-vm test with vsyscall fs/proc/base.c: remove unneeded semicolon do_io_accounting: use sig->stats_lock do_io_accounting: use __for_each_thread() ocfs2: replace BUG_ON() at ocfs2_num_free_extents() with ocfs2_error() ocfs2: fix a typo in a comment scripts/show_delta: add __main__ judgement before main code treewide: mark stuff as __ro_after_init fs: ocfs2: check status values proc: test /proc/${pid}/statm compiler.h: move __is_constexpr() to compiler.h ... |
||
Linus Torvalds
|
ecae0bd517 |
Many singleton patches against the MM code. The patch series which are
included in this merge do the following: - Kemeng Shi has contributed some compation maintenance work in the series "Fixes and cleanups to compaction". - Joel Fernandes has a patchset ("Optimize mremap during mutual alignment within PMD") which fixes an obscure issue with mremap()'s pagetable handling during a subsequent exec(), based upon an implementation which Linus suggested. - More DAMON/DAMOS maintenance and feature work from SeongJae Park i the following patch series: mm/damon: misc fixups for documents, comments and its tracepoint mm/damon: add a tracepoint for damos apply target regions mm/damon: provide pseudo-moving sum based access rate mm/damon: implement DAMOS apply intervals mm/damon/core-test: Fix memory leaks in core-test mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval - In the series "Do not try to access unaccepted memory" Adrian Hunter provides some fixups for the recently-added "unaccepted memory' feature. To increase the feature's checking coverage. "Plug a few gaps where RAM is exposed without checking if it is unaccepted memory". - In the series "cleanups for lockless slab shrink" Qi Zheng has done some maintenance work which is preparation for the lockless slab shrinking code. - Qi Zheng has redone the earlier (and reverted) attempt to make slab shrinking lockless in the series "use refcount+RCU method to implement lockless slab shrink". - David Hildenbrand contributes some maintenance work for the rmap code in the series "Anon rmap cleanups". - Kefeng Wang does more folio conversions and some maintenance work in the migration code. Series "mm: migrate: more folio conversion and unification". - Matthew Wilcox has fixed an issue in the buffer_head code which was causing long stalls under some heavy memory/IO loads. Some cleanups were added on the way. Series "Add and use bdev_getblk()". - In the series "Use nth_page() in place of direct struct page manipulation" Zi Yan has fixed a potential issue with the direct manipulation of hugetlb page frames. - In the series "mm: hugetlb: Skip initialization of gigantic tail struct pages if freed by HVO" has improved our handling of gigantic pages in the hugetlb vmmemmep optimizaton code. This provides significant boot time improvements when significant amounts of gigantic pages are in use. - Matthew Wilcox has sent the series "Small hugetlb cleanups" - code rationalization and folio conversions in the hugetlb code. - Yin Fengwei has improved mlock()'s handling of large folios in the series "support large folio for mlock" - In the series "Expose swapcache stat for memcg v1" Liu Shixin has added statistics for memcg v1 users which are available (and useful) under memcg v2. - Florent Revest has enhanced the MDWE (Memory-Deny-Write-Executable) prctl so that userspace may direct the kernel to not automatically propagate the denial to child processes. The series is named "MDWE without inheritance". - Kefeng Wang has provided the series "mm: convert numa balancing functions to use a folio" which does what it says. - In the series "mm/ksm: add fork-exec support for prctl" Stefan Roesch makes is possible for a process to propagate KSM treatment across exec(). - Huang Ying has enhanced memory tiering's calculation of memory distances. This is used to permit the dax/kmem driver to use "high bandwidth memory" in addition to Optane Data Center Persistent Memory Modules (DCPMM). The series is named "memory tiering: calculate abstract distance based on ACPI HMAT" - In the series "Smart scanning mode for KSM" Stefan Roesch has optimized KSM by teaching it to retain and use some historical information from previous scans. - Yosry Ahmed has fixed some inconsistencies in memcg statistics in the series "mm: memcg: fix tracking of pending stats updates values". - In the series "Implement IOCTL to get and optionally clear info about PTEs" Peter Xu has added an ioctl to /proc/<pid>/pagemap which permits us to atomically read-then-clear page softdirty state. This is mainly used by CRIU. - Hugh Dickins contributed the series "shmem,tmpfs: general maintenance" - a bunch of relatively minor maintenance tweaks to this code. - Matthew Wilcox has increased the use of the VMA lock over file-backed page faults in the series "Handle more faults under the VMA lock". Some rationalizations of the fault path became possible as a result. - In the series "mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap()" David Hildenbrand has implemented some cleanups and folio conversions. - In the series "various improvements to the GUP interface" Lorenzo Stoakes has simplified and improved the GUP interface with an eye to providing groundwork for future improvements. - Andrey Konovalov has sent along the series "kasan: assorted fixes and improvements" which does those things. - Some page allocator maintenance work from Kemeng Shi in the series "Two minor cleanups to break_down_buddy_pages". - In thes series "New selftest for mm" Breno Leitao has developed another MM self test which tickles a race we had between madvise() and page faults. - In the series "Add folio_end_read" Matthew Wilcox provides cleanups and an optimization to the core pagecache code. - Nhat Pham has added memcg accounting for hugetlb memory in the series "hugetlb memcg accounting". - Cleanups and rationalizations to the pagemap code from Lorenzo Stoakes, in the series "Abstract vma_merge() and split_vma()". - Audra Mitchell has fixed issues in the procfs page_owner code's new timestamping feature which was causing some misbehaviours. In the series "Fix page_owner's use of free timestamps". - Lorenzo Stoakes has fixed the handling of new mappings of sealed files in the series "permit write-sealed memfd read-only shared mappings". - Mike Kravetz has optimized the hugetlb vmemmap optimization in the series "Batch hugetlb vmemmap modification operations". - Some buffer_head folio conversions and cleanups from Matthew Wilcox in the series "Finish the create_empty_buffers() transition". - As a page allocator performance optimization Huang Ying has added automatic tuning to the allocator's per-cpu-pages feature, in the series "mm: PCP high auto-tuning". - Roman Gushchin has contributed the patchset "mm: improve performance of accounted kernel memory allocations" which improves their performance by ~30% as measured by a micro-benchmark. - folio conversions from Kefeng Wang in the series "mm: convert page cpupid functions to folios". - Some kmemleak fixups in Liu Shixin's series "Some bugfix about kmemleak". - Qi Zheng has improved our handling of memoryless nodes by keeping them off the allocation fallback list. This is done in the series "handle memoryless nodes more appropriately". - khugepaged conversions from Vishal Moola in the series "Some khugepaged folio conversions". -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZULEMwAKCRDdBJ7gKXxA jhQHAQCYpD3g849x69DmHnHWHm/EHQLvQmRMDeYZI+nx/sCJOwEAw4AKg0Oemv9y FgeUPAD1oasg6CP+INZvCj34waNxwAc= =E+Y4 -----END PGP SIGNATURE----- Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: "Many singleton patches against the MM code. The patch series which are included in this merge do the following: - Kemeng Shi has contributed some compation maintenance work in the series 'Fixes and cleanups to compaction' - Joel Fernandes has a patchset ('Optimize mremap during mutual alignment within PMD') which fixes an obscure issue with mremap()'s pagetable handling during a subsequent exec(), based upon an implementation which Linus suggested - More DAMON/DAMOS maintenance and feature work from SeongJae Park i the following patch series: mm/damon: misc fixups for documents, comments and its tracepoint mm/damon: add a tracepoint for damos apply target regions mm/damon: provide pseudo-moving sum based access rate mm/damon: implement DAMOS apply intervals mm/damon/core-test: Fix memory leaks in core-test mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval - In the series 'Do not try to access unaccepted memory' Adrian Hunter provides some fixups for the recently-added 'unaccepted memory' feature. To increase the feature's checking coverage. 'Plug a few gaps where RAM is exposed without checking if it is unaccepted memory' - In the series 'cleanups for lockless slab shrink' Qi Zheng has done some maintenance work which is preparation for the lockless slab shrinking code - Qi Zheng has redone the earlier (and reverted) attempt to make slab shrinking lockless in the series 'use refcount+RCU method to implement lockless slab shrink' - David Hildenbrand contributes some maintenance work for the rmap code in the series 'Anon rmap cleanups' - Kefeng Wang does more folio conversions and some maintenance work in the migration code. Series 'mm: migrate: more folio conversion and unification' - Matthew Wilcox has fixed an issue in the buffer_head code which was causing long stalls under some heavy memory/IO loads. Some cleanups were added on the way. Series 'Add and use bdev_getblk()' - In the series 'Use nth_page() in place of direct struct page manipulation' Zi Yan has fixed a potential issue with the direct manipulation of hugetlb page frames - In the series 'mm: hugetlb: Skip initialization of gigantic tail struct pages if freed by HVO' has improved our handling of gigantic pages in the hugetlb vmmemmep optimizaton code. This provides significant boot time improvements when significant amounts of gigantic pages are in use - Matthew Wilcox has sent the series 'Small hugetlb cleanups' - code rationalization and folio conversions in the hugetlb code - Yin Fengwei has improved mlock()'s handling of large folios in the series 'support large folio for mlock' - In the series 'Expose swapcache stat for memcg v1' Liu Shixin has added statistics for memcg v1 users which are available (and useful) under memcg v2 - Florent Revest has enhanced the MDWE (Memory-Deny-Write-Executable) prctl so that userspace may direct the kernel to not automatically propagate the denial to child processes. The series is named 'MDWE without inheritance' - Kefeng Wang has provided the series 'mm: convert numa balancing functions to use a folio' which does what it says - In the series 'mm/ksm: add fork-exec support for prctl' Stefan Roesch makes is possible for a process to propagate KSM treatment across exec() - Huang Ying has enhanced memory tiering's calculation of memory distances. This is used to permit the dax/kmem driver to use 'high bandwidth memory' in addition to Optane Data Center Persistent Memory Modules (DCPMM). The series is named 'memory tiering: calculate abstract distance based on ACPI HMAT' - In the series 'Smart scanning mode for KSM' Stefan Roesch has optimized KSM by teaching it to retain and use some historical information from previous scans - Yosry Ahmed has fixed some inconsistencies in memcg statistics in the series 'mm: memcg: fix tracking of pending stats updates values' - In the series 'Implement IOCTL to get and optionally clear info about PTEs' Peter Xu has added an ioctl to /proc/<pid>/pagemap which permits us to atomically read-then-clear page softdirty state. This is mainly used by CRIU - Hugh Dickins contributed the series 'shmem,tmpfs: general maintenance', a bunch of relatively minor maintenance tweaks to this code - Matthew Wilcox has increased the use of the VMA lock over file-backed page faults in the series 'Handle more faults under the VMA lock'. Some rationalizations of the fault path became possible as a result - In the series 'mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap()' David Hildenbrand has implemented some cleanups and folio conversions - In the series 'various improvements to the GUP interface' Lorenzo Stoakes has simplified and improved the GUP interface with an eye to providing groundwork for future improvements - Andrey Konovalov has sent along the series 'kasan: assorted fixes and improvements' which does those things - Some page allocator maintenance work from Kemeng Shi in the series 'Two minor cleanups to break_down_buddy_pages' - In thes series 'New selftest for mm' Breno Leitao has developed another MM self test which tickles a race we had between madvise() and page faults - In the series 'Add folio_end_read' Matthew Wilcox provides cleanups and an optimization to the core pagecache code - Nhat Pham has added memcg accounting for hugetlb memory in the series 'hugetlb memcg accounting' - Cleanups and rationalizations to the pagemap code from Lorenzo Stoakes, in the series 'Abstract vma_merge() and split_vma()' - Audra Mitchell has fixed issues in the procfs page_owner code's new timestamping feature which was causing some misbehaviours. In the series 'Fix page_owner's use of free timestamps' - Lorenzo Stoakes has fixed the handling of new mappings of sealed files in the series 'permit write-sealed memfd read-only shared mappings' - Mike Kravetz has optimized the hugetlb vmemmap optimization in the series 'Batch hugetlb vmemmap modification operations' - Some buffer_head folio conversions and cleanups from Matthew Wilcox in the series 'Finish the create_empty_buffers() transition' - As a page allocator performance optimization Huang Ying has added automatic tuning to the allocator's per-cpu-pages feature, in the series 'mm: PCP high auto-tuning' - Roman Gushchin has contributed the patchset 'mm: improve performance of accounted kernel memory allocations' which improves their performance by ~30% as measured by a micro-benchmark - folio conversions from Kefeng Wang in the series 'mm: convert page cpupid functions to folios' - Some kmemleak fixups in Liu Shixin's series 'Some bugfix about kmemleak' - Qi Zheng has improved our handling of memoryless nodes by keeping them off the allocation fallback list. This is done in the series 'handle memoryless nodes more appropriately' - khugepaged conversions from Vishal Moola in the series 'Some khugepaged folio conversions'" [ bcachefs conflicts with the dynamically allocated shrinkers have been resolved as per Stephen Rothwell in https://lore.kernel.org/all/20230913093553.4290421e@canb.auug.org.au/ with help from Qi Zheng. The clone3 test filtering conflict was half-arsed by yours truly ] * tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (406 commits) mm/damon/sysfs: update monitoring target regions for online input commit mm/damon/sysfs: remove requested targets when online-commit inputs selftests: add a sanity check for zswap Documentation: maple_tree: fix word spelling error mm/vmalloc: fix the unchecked dereference warning in vread_iter() zswap: export compression failure stats Documentation: ubsan: drop "the" from article title mempolicy: migration attempt to match interleave nodes mempolicy: mmap_lock is not needed while migrating folios mempolicy: alloc_pages_mpol() for NUMA policy without vma mm: add page_rmappable_folio() wrapper mempolicy: remove confusing MPOL_MF_LAZY dead code mempolicy: mpol_shared_policy_init() without pseudo-vma mempolicy trivia: use pgoff_t in shared mempolicy tree mempolicy trivia: slightly more consistent naming mempolicy trivia: delete those ancient pr_debug()s mempolicy: fix migrate_pages(2) syscall return nr_failed kernfs: drop shared NUMA mempolicy hooks hugetlbfs: drop shared NUMA mempolicy pretence mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets() ... |
||
Linus Torvalds
|
5eda8f2537 |
linux_kselftest-kunit-6.7-rc1
This kunit update for Linux 6.7-rc1 consists of: -- string-stream testing enhancements -- several fixes memory leaks -- fix to reset status during parameter handling -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmVClgAACgkQCwJExA0N QxwXhA//Yn2nL5an6A9ZQire8S0HmxqdAwgROBVb7AaCkJ9L4cY+BYyt+VzTkaGO DJ3x5TwBi6BUkDSmAjppu+KhSQqbRvtmC5xIwH5zbSqKesftklJDhNC6SBd8ZFSC W5w+wwK8xxqFni2NAQu/ZMHrxgllUlR7ZbCE31U/IUYvW4NP4izz9oX3rqkvgjEU aZOQpe3GBVn3jkX+gYopoCqegbSiobjeE83cq8NwFX22rxA8FRDKeJF6/5fv3N1h vJF0KR14QIxc+Y50KHLNMpCXLIM8/IXEiPXd0bqzFVEB+/uyikM8BRPQRHaq9PfA VhaRSDAe9rYgAQYZcayAPLHlrsrFXS/gFs2x15QxzeLfrke7uJg1jEa8CoxV50f3 ImAOxbtxXcW0Oz0lU4J5iX6Kq1gwhv/GP/Rgr8Cf2xMo4dWy3k6/dt8Ep7FwuwWk +ReDNPBw+FMrRLN3hWTXr2Y7k4avOmCDmjj5L1YVVG9yug0WI4ZD3OelbcXtzAA6 XUAuB/EjCQYNB8XrOGd7+xX8eZraA/68xgf9gtNM3ycoIQ2UAfGnQnaZm3BXjvGk zjnvG8JpaCBObvonK22y1t60Ive1PbZgpdtU2Za1QTUjZWUPPudLHr7oU30crOaW +aqtCam6UGU6GlsiMWzbN8cv/q5fo/gCWkfKLGEry2NCz/71mwc= =Nn2t -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-kunit-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kunit updates from Shuah Khan: - string-stream testing enhancements - several fixes memory leaks - fix to reset status during parameter handling * tag 'linux_kselftest-kunit-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: kunit: test: Fix the possible memory leak in executor_test kunit: Fix possible memory leak in kunit_filter_suites() kunit: Fix the wrong kfree of copy for kunit_filter_suites() kunit: Fix missed memory release in kunit_free_suite_set() kunit: Reset test status on each param iteration kunit: string-stream: Test performance of string_stream kunit: Use string_stream for test log kunit: string-stream: Add tests for freeing resource-managed string_stream kunit: string-stream: Decouple string_stream from kunit kunit: string-stream: Add kunit_alloc_string_stream() kunit: Don't use a managed alloc in is_literal() kunit: string-stream-test: Add cases for string_stream newline appending kunit: string-stream: Add option to make all lines end with newline kunit: string-stream: Improve testing of string_stream kunit: string-stream: Don't create a fragment for empty strings |
||
Linus Torvalds
|
05bf73aa27 |
Probes updates for v6.7:
- cleanups: . kprobes: Fixes typo in kprobes samples. . tracing/eprobes: Remove 'break' after return. - kretprobe/fprobe performance improvements: . lib: Introduce new `objpool`, which is a high performance lockless object queue. This uses per-cpu ring array to allocate/release objects from the pre-allocated object pool. Since the index of ring array is a 32bit sequential counter, we can retry to push/pop the object pointer from the ring without lock (as seq-lock does). . lib: Add an objpool test module to test the functionality and evaluate the performance under some circumstances. . kprobes/fprobe: Improve kretprobe and rethook scalability performance with objpool. This improves both legacy kretprobe and fprobe exit handler (which is based on rethook) to be scalable on SMP systems. Even with 8-threads parallel test, it shows a great scalability improvement. . Remove unneeded freelist.h which is replaced by objpool. . objpool: Add maintainers entry for the objpool. . objpool: Fix to remove unused include header lines. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmVA54obHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8busoH/3mG/rJwVVJw70zTLlfs ko4U1wn16aImYQYYLXkZLlYsKr6Y2dzNkb5C4CEI2r47EZjTamHatGZ6MSwvAtPb u9oloHEbRbE6yM+EjrE1JAKT9FwC+21/yZCN2zACZKJRwCwQRzxGIXUwGTWtDNdE NySLBDyMoR6zZJsFy8YueFBAJxcZdWIPK6mQH2Y5awVQA4tV7tQEe92KFqUYWTd5 exbfBbcVG8MBWmrPqRI46Hxh0NWOnPCqFwGqX8Q7hE/yrQnTPzJ+2ZsbYFkGRk6A pM5wRCdwO5+OlcHEcEHBMQSGCmFgk6m1UMG8RvbCKyF3cwHbxzlelbjzHosKQvSh EKQ= =/vZK -----END PGP SIGNATURE----- Merge tag 'probes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes updates from Masami Hiramatsu: "Cleanups: - kprobes: Fixes typo in kprobes samples - tracing/eprobes: Remove 'break' after return kretprobe/fprobe performance improvements: - lib: Introduce new `objpool`, which is a high performance lockless object queue. This uses per-cpu ring array to allocate/release objects from the pre-allocated object pool. Since the index of ring array is a 32bit sequential counter, we can retry to push/pop the object pointer from the ring without lock (as seq-lock does) - lib: Add an objpool test module to test the functionality and evaluate the performance under some circumstances - kprobes/fprobe: Improve kretprobe and rethook scalability performance with objpool. This improves both legacy kretprobe and fprobe exit handler (which is based on rethook) to be scalable on SMP systems. Even with 8-threads parallel test, it shows a great scalability improvement - Remove unneeded freelist.h which is replaced by objpool - objpool: Add maintainers entry for the objpool - objpool: Fix to remove unused include header lines" * tag 'probes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: kprobes: unused header files removed MAINTAINERS: objpool added kprobes: freelist.h removed kprobes: kretprobe scalability improvement lib: objpool test module added lib: objpool added: ring-array based lockless MPMC tracing/eprobe: drop unneeded breaks samples: kprobes: Fixes a typo |
||
Linus Torvalds
|
1e0c505e13 |
asm-generic updates for v6.7
The ia64 architecture gets its well-earned retirement as planned, now that there is one last (mostly) working release that will be maintained as an LTS kernel. The architecture specific system call tables are updated for the added map_shadow_stack() syscall and to remove references to the long-gone sys_lookup_dcookie() syscall. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmVC40IACgkQYKtH/8kJ Uidhmw/9EX+aWSXGoObJ3fngaNSMw+PmrEuP8qEKBHxfKHcCdX3hc451Oh4GlhaQ tru91pPwgNvN2/rfoKusxT+V4PemGIzfNni/04rp+P0kvmdw5otQ2yNhsQNsfVmq XGWvkxF4P2GO6bkjjfR/1dDq7GtlyXtwwPDKeLbYb6TnJOZjtx+EAN27kkfSn1Ms R4Sa3zJ+DfHUmHL5S9g+7UD/CZ5GfKNmIskI4Mz5GsfoUz/0iiU+Bge/9sdcdSJQ kmbLy5YnVzfooLZ3TQmBFsO3iAMWb0s/mDdtyhqhTVmTUshLolkPYyKnPFvdupyv shXcpEST2XJNeaDRnL2K4zSCdxdbnCZHDpjfl9wfioBg7I8NfhXKpf1jYZHH1de4 LXq8ndEFEOVQw/zSpYWfQq1sux8Jiqr+UK/ukbVeFWiGGIUs91gEWtPAf8T0AZo9 ujkJvaWGl98O1g5wmBu0/dAR6QcFJMDfVwbmlIFpU8O+MEaz6X8mM+O5/T0IyTcD eMbAUjj4uYcU7ihKzHEv/0SS9Of38kzff67CLN5k8wOP/9NlaGZ78o1bVle9b52A BdhrsAefFiWHp1jT6Y9Rg4HOO/TguQ9e6EWSKOYFulsiLH9LEFaB9RwZLeLytV0W vlAgY9rUW77g1OJcb7DoNv33nRFuxsKqsnz3DEIXtgozo9CzbYI= =H1vH -----END PGP SIGNATURE----- Merge tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull ia64 removal and asm-generic updates from Arnd Bergmann: - The ia64 architecture gets its well-earned retirement as planned, now that there is one last (mostly) working release that will be maintained as an LTS kernel. - The architecture specific system call tables are updated for the added map_shadow_stack() syscall and to remove references to the long-gone sys_lookup_dcookie() syscall. * tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: hexagon: Remove unusable symbols from the ptrace.h uapi asm-generic: Fix spelling of architecture arch: Reserve map_shadow_stack() syscall number for all architectures syscalls: Cleanup references to sys_lookup_dcookie() Documentation: Drop or replace remaining mentions of IA64 lib/raid6: Drop IA64 support Documentation: Drop IA64 from feature descriptions kernel: Drop IA64 support from sig_fault handlers arch: Remove Itanium (IA-64) architecture |
||
Linus Torvalds
|
385903a7ec |
SoC driver updates for 6.7
The highlights for the driver support this time are - Qualcomm platforms gain support for the Qualcomm Secure Execution Environment firmware interface to access EFI variables on certain devices, and new features for multiple platform and firmware drivers. - Arm FF-A firmware support gains support for v1.1 specification features, in particular notification and memory transaction descriptor changes. - SCMI firmware support now support v3.2 features for clock and DVFS configuration and a new transport for Qualcomm platforms. - Minor cleanups and bugfixes are added to pretty much all the active platforms: qualcomm, broadcom, dove, ti-k3, rockchip, sifive, amlogic, atmel, tegra, aspeed, vexpress, mediatek, samsung and more. In particular, this contains portions of the treewide conversion to use __counted_by annotations and the device_get_match_data helper. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmVC10IACgkQYKtH/8kJ UifFoQ//Tw7aux88EA2UkyL2Wulv80NwRQn3tQlxI/6ltjBX64yeQ6Y8OzmYdSYK 20NEpbU7VWOFftN+D6Jp1HLrvfi0OV9uJn3WiTX3ChgDXixpOXo4TYgNNTlb9uZ4 MrSTG3NkS27m/oTaCmYprOObgSNLq1FRCGIP7w4U9gyMk9N9FSKMpSJjlH06qPz6 WBLTaIwPgBsyrLfCdxfA1y7AFCAHVxQJO4bp0VWSIalTrneGTeQrd2FgYMUesQ2e fIUNCaU4mpmj8XnQ/W19Wsek8FRB+fOh0hn/Gl+iHYibpxusIsn7bkdZ5BOJn2J0 OY3C1biopaaxXcZ+wmnX9X0ieZ3TDsHzYOEf0zmNGzMZaZkV8kQt4/Ykv77xz6Gc 4Bl6JI5QZ4rTZvlHYGMYxhy3hKuB31mO2rHbei7eR7J7UmjzWcl5P6HYfCgj7wzH crIWj1IR1Nx6Dt/wXf3HlRcEiAEJ2D0M3KIFjAVT239TsxacBfDrRk+YedF2bKbn WMYfVM6jJnPOykGg/gMRlttS/o/7TqHBl3y/900Idiijcm3cRPbQ+uKfkpHXftN/ 2vOtsw7pzEg7QQI9GVrb4drTrLvYJ7GQOi4o0twXTCshlXUk2V684jvHt0emFkdX ew9Zft4YLAYSmuJ3XqGhhMP63FsHKMlB1aSTKKPeswdIJmrdO80= =QIut -----END PGP SIGNATURE----- Merge tag 'soc-drivers-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC driver updates from Arnd Bergmann: "The highlights for the driver support this time are - Qualcomm platforms gain support for the Qualcomm Secure Execution Environment firmware interface to access EFI variables on certain devices, and new features for multiple platform and firmware drivers. - Arm FF-A firmware support gains support for v1.1 specification features, in particular notification and memory transaction descriptor changes. - SCMI firmware support now support v3.2 features for clock and DVFS configuration and a new transport for Qualcomm platforms. - Minor cleanups and bugfixes are added to pretty much all the active platforms: qualcomm, broadcom, dove, ti-k3, rockchip, sifive, amlogic, atmel, tegra, aspeed, vexpress, mediatek, samsung and more. In particular, this contains portions of the treewide conversion to use __counted_by annotations and the device_get_match_data helper" * tag 'soc-drivers-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (156 commits) soc: qcom: pmic_glink_altmode: Print return value on error firmware: qcom: scm: remove unneeded 'extern' specifiers firmware: qcom: scm: add a missing forward declaration for struct device firmware: qcom: move Qualcomm code into its own directory soc: samsung: exynos-chipid: Convert to platform remove callback returning void soc: qcom: apr: Add __counted_by for struct apr_rx_buf and use struct_size() soc: qcom: pmic_glink: fix connector type to be DisplayPort soc: ti: k3-socinfo: Avoid overriding return value soc: ti: k3-socinfo: Fix typo in bitfield documentation soc: ti: knav_qmss_queue: Use device_get_match_data() firmware: ti_sci: Use device_get_match_data() firmware: qcom: qseecom: add missing include guards soc/pxa: ssp: Convert to platform remove callback returning void soc/mediatek: mtk-mmsys: Convert to platform remove callback returning void soc/mediatek: mtk-devapc: Convert to platform remove callback returning void soc/loongson: loongson2_guts: Convert to platform remove callback returning void soc/litex: litex_soc_ctrl: Convert to platform remove callback returning void soc/ixp4xx: ixp4xx-qmgr: Convert to platform remove callback returning void soc/ixp4xx: ixp4xx-npe: Convert to platform remove callback returning void soc/hisilicon: kunpeng_hccs: Convert to platform remove callback returning void ... |
||
Linus Torvalds
|
89ed67ef12 |
Networking changes for 6.7.
Core & protocols ---------------- - Support usec resolution of TCP timestamps, enabled selectively by a route attribute. - Defer regular TCP ACK while processing socket backlog, try to send a cumulative ACK at the end. Increase single TCP flow performance on a 200Gbit NIC by 20% (100Gbit -> 120Gbit). - The Fair Queuing (FQ) packet scheduler: - add built-in 3 band prio / WRR scheduling - support bypass if the qdisc is mostly idle (5% speed up for TCP RR) - improve inactive flow reporting - optimize the layout of structures for better cache locality - Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern replacement for the old MD5 option. - Add more retransmission timeout (RTO) related statistics to TCP_INFO. - Support sending fragmented skbs over vsock sockets. - Make sure we send SIGPIPE for vsock sockets if socket was shutdown(). - Add sysctl for ignoring lower limit on lifetime in Router Advertisement PIO, based on an in-progress IETF draft. - Add sysctl to control activation of TCP ping-pong mode. - Add sysctl to make connection timeout in MPTCP configurable. - Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps limit the number of wakeups. - Support netlink GET for MDB (multicast forwarding), allowing user space to request a single MDB entry instead of dumping the entire table. - Support selective FDB flushing in the VXLAN tunnel driver. - Allow limiting learned FDB entries in bridges, prevent OOM attacks. - Allow controlling via configfs netconsole targets which were created via the kernel cmdline at boot, rather than via configfs at runtime. - Support multiple PTP timestamp event queue readers with different filters. - MCTP over I3C. BPF --- - Add new veth-like netdevice where BPF program defines the logic of the xmit routine. It can operate in L3 and L2 mode. - Support exceptions - allow asserting conditions which should never be true but are hard for the verifier to infer. With some extra flexibility around handling of the exit / failure. https://lwn.net/Articles/938435/ - Add support for local per-cpu kptr, allow allocating and storing per-cpu objects in maps. Access to those objects operates on the value for the current CPU. This allows to deprecate local one-off implementations of per-CPU storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps. - Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is for systemd to re-implement the LogNamespace feature which allows running multiple instances of systemd-journald to process the logs of different services. - Enable open-coded task_vma iteration, after maple tree conversion made it hard to directly walk VMAs in tracing programs. - Add open-coded task, css_task and css iterator support. One of the use cases is customizable OOM victim selection via BPF. - Allow source address selection with bpf_*_fib_lookup(). - Add ability to pin BPF timer to the current CPU. - Prevent creation of infinite loops by combining tail calls and fentry/fexit programs. - Add missed stats for kprobes to retrieve the number of missed kprobe executions and subsequent executions of BPF programs. - Inherit system settings for CPU security mitigations. - Add BPF v4 CPU instruction support for arm32 and s390x. Changes to common code ---------------------- - overflow: add DEFINE_FLEX() for on-stack definition of structs with flexible array members. - Process doc update with more guidance for reviewers. Driver API ---------- - Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy mutex in most places and remove a lot of smaller locks. - Create a common DPLL configuration API. Allow configuring and querying state of PLL circuits used for clock syntonization, in network time distribution. - Unify fragmented and full page allocation APIs in page pool code. Let drivers be ignorant of PAGE_SIZE. - Rework PHY state machine to avoid races with calls to phy_stop(). - Notify DSA drivers of MAC address changes on user ports, improve correctness of offloads which depend on matching port MAC addresses. - Allow antenna control on injected WiFi frames. - Reduce the number of variants of napi_schedule(). - Simplify error handling when composing devlink health messages. Misc ---- - A lot of KCSAN data race "fixes", from Eric. - A lot of __counted_by() annotations, from Kees. - A lot of strncpy -> strscpy and printf format fixes. - Replace master/slave terminology with conduit/user in DSA drivers. - Handful of KUnit tests for netdev and WiFi core. Removed ------- - AppleTalk COPS. - AppleTalk ipddp. - TI AR7 CPMAC Ethernet driver. Drivers ------- - Ethernet high-speed NICs: - Intel (100G, ice, idpf): - add a driver for the Intel E2000 IPUs - make CRC/FCS stripping configurable - cross-timestamping for E823 devices - basic support for E830 devices - use aux-bus for managing client drivers - i40e: report firmware versions via devlink - nVidia/Mellanox: - support 4-port NICs - increase max number of channels to 256 - optimize / parallelize SF creation flow - Broadcom (bnxt): - enhance NIC temperature reporting - support PAM4 speeds and lane configuration - Marvell OcteonTX2: - PTP pulse-per-second output support - enable hardware timestamping for VFs - Solarflare/AMD: - conntrack NAT offload and offload for tunnels - Wangxun (ngbe/txgbe): - expose HW statistics - Pensando/AMD: - support PCI level reset - narrow down the condition under which skbs are linearized - Netronome/Corigine (nfp): - support CHACHA20-POLY1305 crypto in IPsec offload - Ethernet NICs embedded, slower, virtual: - Synopsys (stmmac): - add Loongson-1 SoC support - enable use of HW queues with no offload capabilities - enable PPS input support on all 5 channels - increase TX coalesce timer to 5ms - RealTek USB (r8152): improve efficiency of Rx by using GRO frags - xen: support SW packet timestamping - add drivers for implementations based on TI's PRUSS (AM64x EVM) - nVidia/Mellanox Ethernet datacenter switches: - avoid poor HW resource use on Spectrum-4 by better block selection for IPv6 multicast forwarding and ordering of blocks in ACL region - Ethernet embedded switches: - Microchip: - support configuring the drive strength for EMI compliance - ksz9477: partial ACL support - ksz9477: HSR offload - ksz9477: Wake on LAN - Realtek: - rtl8366rb: respect device tree config of the CPU port - Ethernet PHYs: - support Broadcom BCM5221 PHYs - TI dp83867: support hardware LED blinking - CAN: - add support for Linux-PHY based CAN transceivers - at91_can: clean up and use rx-offload helpers - WiFi: - MediaTek (mt76): - new sub-driver for mt7925 USB/PCIe devices - HW wireless <> Ethernet bridging in MT7988 chips - mt7603/mt7628 stability improvements - Qualcomm (ath12k): - WCN7850: - enable 320 MHz channels in 6 GHz band - hardware rfkill support - enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to make scan faster - read board data variant name from SMBIOS - QCN9274: mesh support - RealTek (rtw89): - TDMA-based multi-channel concurrency (MCC) - Silicon Labs (wfx): - Remain-On-Channel (ROC) support - Bluetooth: - ISO: many improvements for broadcast support - mark BCM4378/BCM4387 as BROKEN_LE_CODED - add support for QCA2066 - btmtksdio: enable Bluetooth wakeup from suspend Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmU8XsYACgkQMUZtbf5S Irv19RAAnud/24OOF5XMEJkIcYlnfqximh4XO6PujRSYkSkOUJdZTF6iJPgf3pSP YpwoHYbYKHYfeOf8+3bTNESiQNSnoVmvmvwiS6/7lZ3behHUrGLQzW9Htc3EZyWH 2h6QkDZ5OOjfg0bwYSfp3vXkmMH2k8WE9Y0NvCkhcohqZi13Rmp14RnyPmNb2d1V yZRYDMSM133KqE6gnBr1Ct65IEvnKeGlCUN2mTGqOJgdn6DZMsyxvtt0y4rmN7Ab 41+CgPU5SfxfbYpW+Dl2HJpgfte3WrC57KC6AM0PAPJzPmQWgeB/m9mjz/apj6Bg bhsEIo7FdvbCnQm3yWPhK2OgCAcSwLr8jfGMU+Q+W4VnL5SRRR3Rm0zjsze+kHNP OfqJgxzl3DpvoJqVBy1h5FGcZt0XHwhksm4cTxWqIahsF+veY0ECBXbuBBQx9XTF Y7INfI8ulg7wISJs+CJfIClYkgOibTw2u8taBS5ikbtgxNqp5D4QqODn7UefQap1 PR/IDYODF+zRgmMJLeBqSa6fij6BkfOEDiOWak5kggBoZdtbtmeKI6tzze06CNdW lWv1WEhRufxnwK+IuWsEkjhiMbs2WGLvkJ5JbgQV9BfqHfIfiqBCrcWtT/WbQnGt lmU46CXh1t/FZEqbmK9h+8vsIIfrcDl6jb5npEiKPRG00vDKRTM= =46nS -----END PGP SIGNATURE----- Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core & protocols: - Support usec resolution of TCP timestamps, enabled selectively by a route attribute. - Defer regular TCP ACK while processing socket backlog, try to send a cumulative ACK at the end. Increase single TCP flow performance on a 200Gbit NIC by 20% (100Gbit -> 120Gbit). - The Fair Queuing (FQ) packet scheduler: - add built-in 3 band prio / WRR scheduling - support bypass if the qdisc is mostly idle (5% speed up for TCP RR) - improve inactive flow reporting - optimize the layout of structures for better cache locality - Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern replacement for the old MD5 option. - Add more retransmission timeout (RTO) related statistics to TCP_INFO. - Support sending fragmented skbs over vsock sockets. - Make sure we send SIGPIPE for vsock sockets if socket was shutdown(). - Add sysctl for ignoring lower limit on lifetime in Router Advertisement PIO, based on an in-progress IETF draft. - Add sysctl to control activation of TCP ping-pong mode. - Add sysctl to make connection timeout in MPTCP configurable. - Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps limit the number of wakeups. - Support netlink GET for MDB (multicast forwarding), allowing user space to request a single MDB entry instead of dumping the entire table. - Support selective FDB flushing in the VXLAN tunnel driver. - Allow limiting learned FDB entries in bridges, prevent OOM attacks. - Allow controlling via configfs netconsole targets which were created via the kernel cmdline at boot, rather than via configfs at runtime. - Support multiple PTP timestamp event queue readers with different filters. - MCTP over I3C. BPF: - Add new veth-like netdevice where BPF program defines the logic of the xmit routine. It can operate in L3 and L2 mode. - Support exceptions - allow asserting conditions which should never be true but are hard for the verifier to infer. With some extra flexibility around handling of the exit / failure: https://lwn.net/Articles/938435/ - Add support for local per-cpu kptr, allow allocating and storing per-cpu objects in maps. Access to those objects operates on the value for the current CPU. This allows to deprecate local one-off implementations of per-CPU storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps. - Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is for systemd to re-implement the LogNamespace feature which allows running multiple instances of systemd-journald to process the logs of different services. - Enable open-coded task_vma iteration, after maple tree conversion made it hard to directly walk VMAs in tracing programs. - Add open-coded task, css_task and css iterator support. One of the use cases is customizable OOM victim selection via BPF. - Allow source address selection with bpf_*_fib_lookup(). - Add ability to pin BPF timer to the current CPU. - Prevent creation of infinite loops by combining tail calls and fentry/fexit programs. - Add missed stats for kprobes to retrieve the number of missed kprobe executions and subsequent executions of BPF programs. - Inherit system settings for CPU security mitigations. - Add BPF v4 CPU instruction support for arm32 and s390x. Changes to common code: - overflow: add DEFINE_FLEX() for on-stack definition of structs with flexible array members. - Process doc update with more guidance for reviewers. Driver API: - Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy mutex in most places and remove a lot of smaller locks. - Create a common DPLL configuration API. Allow configuring and querying state of PLL circuits used for clock syntonization, in network time distribution. - Unify fragmented and full page allocation APIs in page pool code. Let drivers be ignorant of PAGE_SIZE. - Rework PHY state machine to avoid races with calls to phy_stop(). - Notify DSA drivers of MAC address changes on user ports, improve correctness of offloads which depend on matching port MAC addresses. - Allow antenna control on injected WiFi frames. - Reduce the number of variants of napi_schedule(). - Simplify error handling when composing devlink health messages. Misc: - A lot of KCSAN data race "fixes", from Eric. - A lot of __counted_by() annotations, from Kees. - A lot of strncpy -> strscpy and printf format fixes. - Replace master/slave terminology with conduit/user in DSA drivers. - Handful of KUnit tests for netdev and WiFi core. Removed: - AppleTalk COPS. - AppleTalk ipddp. - TI AR7 CPMAC Ethernet driver. Drivers: - Ethernet high-speed NICs: - Intel (100G, ice, idpf): - add a driver for the Intel E2000 IPUs - make CRC/FCS stripping configurable - cross-timestamping for E823 devices - basic support for E830 devices - use aux-bus for managing client drivers - i40e: report firmware versions via devlink - nVidia/Mellanox: - support 4-port NICs - increase max number of channels to 256 - optimize / parallelize SF creation flow - Broadcom (bnxt): - enhance NIC temperature reporting - support PAM4 speeds and lane configuration - Marvell OcteonTX2: - PTP pulse-per-second output support - enable hardware timestamping for VFs - Solarflare/AMD: - conntrack NAT offload and offload for tunnels - Wangxun (ngbe/txgbe): - expose HW statistics - Pensando/AMD: - support PCI level reset - narrow down the condition under which skbs are linearized - Netronome/Corigine (nfp): - support CHACHA20-POLY1305 crypto in IPsec offload - Ethernet NICs embedded, slower, virtual: - Synopsys (stmmac): - add Loongson-1 SoC support - enable use of HW queues with no offload capabilities - enable PPS input support on all 5 channels - increase TX coalesce timer to 5ms - RealTek USB (r8152): improve efficiency of Rx by using GRO frags - xen: support SW packet timestamping - add drivers for implementations based on TI's PRUSS (AM64x EVM) - nVidia/Mellanox Ethernet datacenter switches: - avoid poor HW resource use on Spectrum-4 by better block selection for IPv6 multicast forwarding and ordering of blocks in ACL region - Ethernet embedded switches: - Microchip: - support configuring the drive strength for EMI compliance - ksz9477: partial ACL support - ksz9477: HSR offload - ksz9477: Wake on LAN - Realtek: - rtl8366rb: respect device tree config of the CPU port - Ethernet PHYs: - support Broadcom BCM5221 PHYs - TI dp83867: support hardware LED blinking - CAN: - add support for Linux-PHY based CAN transceivers - at91_can: clean up and use rx-offload helpers - WiFi: - MediaTek (mt76): - new sub-driver for mt7925 USB/PCIe devices - HW wireless <> Ethernet bridging in MT7988 chips - mt7603/mt7628 stability improvements - Qualcomm (ath12k): - WCN7850: - enable 320 MHz channels in 6 GHz band - hardware rfkill support - enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to make scan faster - read board data variant name from SMBIOS - QCN9274: mesh support - RealTek (rtw89): - TDMA-based multi-channel concurrency (MCC) - Silicon Labs (wfx): - Remain-On-Channel (ROC) support - Bluetooth: - ISO: many improvements for broadcast support - mark BCM4378/BCM4387 as BROKEN_LE_CODED - add support for QCA2066 - btmtksdio: enable Bluetooth wakeup from suspend" * tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1816 commits) net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers net: bpf: Use sockopt_lock_sock() in ip_sock_set_tos() net: mana: Use xdp_set_features_flag instead of direct assignment vxlan: Cleanup IFLA_VXLAN_PORT_RANGE entry in vxlan_get_size() iavf: delete the iavf client interface iavf: add a common function for undoing the interrupt scheme iavf: use unregister_netdev iavf: rely on netdev's own registered state iavf: fix the waiting time for initial reset iavf: in iavf_down, don't queue watchdog_task if comms failed iavf: simplify mutex_trylock+sleep loops iavf: fix comments about old bit locks doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name tools: ynl: introduce option to process unknown attributes or types ipvlan: properly track tx_errors netdevsim: Block until all devices are released nfp: using napi_build_skb() to replace build_skb() net: dsa: microchip: ksz9477: Fix spelling mistake "Enery" -> "Energy" net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN net: dsa: microchip: Refactor switch shutdown routine for WoL preparation ... |
||
Linus Torvalds
|
befaa609f4 |
hardening updates for v6.7-rc1
- Add LKDTM test for stuck CPUs (Mark Rutland) - Improve LKDTM selftest behavior under UBSan (Ricardo Cañuelo) - Refactor more 1-element arrays into flexible arrays (Gustavo A. R. Silva) - Analyze and replace strlcpy and strncpy uses (Justin Stitt, Azeem Shaikh) - Convert group_info.usage to refcount_t (Elena Reshetova) - Add __counted_by annotations (Kees Cook, Gustavo A. R. Silva) - Add Kconfig fragment for basic hardening options (Kees Cook, Lukas Bulwahn) - Fix randstruct GCC plugin performance mode to stay in groups (Kees Cook) - Fix strtomem() compile-time check for small sources (Kees Cook) -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmU/3cUWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJsEoEACBGPSiOmfSWdH3TOnIG270PD24 jGjg8KFv7RC/JTOdYmpLl0okdlGT9LvjN/ToSSDEw3PIayxoXUdhkbYy0MYtiV3m yz2ozDTzJuplQX/W2fPE+nXSzIwHao2zjPPFjHnT7lt8IIjhgjiOtLfZ2gGUkW99 Mdu2aWh3u0r4tC8OS23++yN5ibRc5l72efsjDWjZ0aPXnxE1bjmLMiIPiizpndIf beasPuDBs98sJVYouemCwnsPXuXOPz3Q1Cpo/fTd+TMTJCLSemCQZCTuOBU0acI/ ZjLCgCaJU1yIYKBMtrIN4G9kITZniXX3/Nm4o6NQMVlcCqMeNaHuflomqWoqWfhE UPbRo2eghZOaMNiCKLLvZDIqPrh1IcsiEl6Ef3W4hICc42GTK96IuGisIvDXwQ4N /SzTOupJuN42noh3z1M3XuZy5RoXJ99IYDNY5CTKf9IdqvA0bbGkU3nb1gZH/xw9 BjTqKzR/7K1kTXuSgagDZ1Wceej9pZxhX7E3IHYsP8ZOvKug3EeL4yybVwQ3HRfq Qnzcp/qPB9cOkLSQXveRTFTsj2mX28Gixct/iDuc1jIYwGQlY1gI6dcUcqby6ptM BrQti7eR2NH2+T3aE2UVCIWsZVhx7NaSF+z8JxfAuu56jicc4xJVsi8zrNveWX5M m2VXyBl3121BVtKi4w== =0iVF -----END PGP SIGNATURE----- Merge tag 'hardening-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: "One of the more voluminous set of changes is for adding the new __counted_by annotation[1] to gain run-time bounds checking of dynamically sized arrays with UBSan. - Add LKDTM test for stuck CPUs (Mark Rutland) - Improve LKDTM selftest behavior under UBSan (Ricardo Cañuelo) - Refactor more 1-element arrays into flexible arrays (Gustavo A. R. Silva) - Analyze and replace strlcpy and strncpy uses (Justin Stitt, Azeem Shaikh) - Convert group_info.usage to refcount_t (Elena Reshetova) - Add __counted_by annotations (Kees Cook, Gustavo A. R. Silva) - Add Kconfig fragment for basic hardening options (Kees Cook, Lukas Bulwahn) - Fix randstruct GCC plugin performance mode to stay in groups (Kees Cook) - Fix strtomem() compile-time check for small sources (Kees Cook)" * tag 'hardening-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (56 commits) hwmon: (acpi_power_meter) replace open-coded kmemdup_nul reset: Annotate struct reset_control_array with __counted_by kexec: Annotate struct crash_mem with __counted_by virtio_console: Annotate struct port_buffer with __counted_by ima: Add __counted_by for struct modsig and use struct_size() MAINTAINERS: Include stackleak paths in hardening entry string: Adjust strtomem() logic to allow for smaller sources hardening: x86: drop reference to removed config AMD_IOMMU_V2 randstruct: Fix gcc-plugin performance mode to stay in group mailbox: zynqmp: Annotate struct zynqmp_ipi_pdata with __counted_by drivers: thermal: tsens: Annotate struct tsens_priv with __counted_by irqchip/imx-intmux: Annotate struct intmux_data with __counted_by KVM: Annotate struct kvm_irq_routing_table with __counted_by virt: acrn: Annotate struct vm_memory_region_batch with __counted_by hwmon: Annotate struct gsc_hwmon_platform_data with __counted_by sparc: Annotate struct cpuinfo_tree with __counted_by isdn: kcapi: replace deprecated strncpy with strscpy_pad isdn: replace deprecated strncpy with strscpy NFS/flexfiles: Annotate struct nfs4_ff_layout_segment with __counted_by nfs41: Annotate struct nfs4_file_layout_dsaddr with __counted_by ... |
||
Linus Torvalds
|
63ce50fff9 |
Scheduler changes for v6.7 are:
- Fair scheduler (SCHED_OTHER) improvements: - Remove the old and now unused SIS_PROP code & option - Scan cluster before LLC in the wake-up path - Use candidate prev/recent_used CPU if scanning failed for cluster wakeup - NUMA scheduling improvements: - Improve the VMA access-PID code to better skip/scan VMAs - Extend tracing to cover VMA-skipping decisions - Improve/fix the recently introduced sched_numa_find_nth_cpu() code - Generalize numa_map_to_online_node() - Energy scheduling improvements: - Remove the EM_MAX_COMPLEXITY limit - Add tracepoints to track energy computation - Make the behavior of the 'sched_energy_aware' sysctl more consistent - Consolidate and clean up access to a CPU's max compute capacity - Fix uclamp code corner cases - RT scheduling improvements: - Drive dl_rq->overloaded with dl_rq->pushable_dl_tasks updates - Drive the ->rto_mask with rt_rq->pushable_tasks updates - Scheduler scalability improvements: - Rate-limit updates to tg->load_avg - On x86 disable IBRS when CPU is offline to improve single-threaded performance - Micro-optimize in_task() and in_interrupt() - Micro-optimize the PSI code - Avoid updating PSI triggers and ->rtpoll_total when there are no state changes - Core scheduler infrastructure improvements: - Use saved_state to reduce some spurious freezer wakeups - Bring in a handful of fast-headers improvements to scheduler headers - Make the scheduler UAPI headers more widely usable by user-space - Simplify the control flow of scheduler syscalls by using lock guards - Fix sched_setaffinity() vs. CPU hotplug race - Scheduler debuggability improvements: - Disallow writing invalid values to sched_rt_period_us - Fix a race in the rq-clock debugging code triggering warnings - Fix a warning in the bandwidth distribution code - Micro-optimize in_atomic_preempt_off() checks - Enforce that the tasklist_lock is held in for_each_thread() - Print the TGID in sched_show_task() - Remove the /proc/sys/kernel/sched_child_runs_first sysctl - Misc cleanups & fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmU8/NoRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gN+xAAvKGYNZBCBG4jowxccgqAbCx81KOhhsy/ KUaOmdLPg9WaXuqjZ5sggXQCMT0wUqBYAmqV7ts53VhWcma2I1ap4dCM6Jj+RLrc vNwkeNetsikiZtarMoCJs5NahL8ULh3liBaoAkkToPjQ5r43aZ/eKwDovEdIKc+g +Vgn7jUY8ssIrAOKT1midSwY1y8kAU2AzWOSFDTgedkJP4PgOu9/lBl9jSJ2sYaX N4XqONYPXTwOHUtvmzkYILxLz0k0GgJ7hmt78E8Xy2rC4taGCRwCfCMBYxREuwiP huo3O1P/iIe5svm4/EBUvcpvf44eAWTV+CD0dnJPwOc9IvFhpSzqSZZAsyy/JQKt Lnzmc/xmyc1PnXCYJfHuXrw2/m+MyUHaegPzh5iLJFrlqa79GavOElj0jNTAMzbZ 39fybzPtuFP+64faRfu0BBlQZfORPBNc/oWMpPKqgP58YGuveKTWaUF5rl5lM7Ne nm07uOmq02JVR8YzPl/FcfhU2dPMawWuMwUjEr2eU+lAunY3PF88vu0FALj7iOBd 66F8qrtpDHJanOxrdEUwSJ7hgw79qY1iw66Db7cQYjMazFKZONxArQPqFUZ0ngLI n9hVa7brg1bAQKrQflqjcIAIbpVu3SjPEl15cKpAJTB/gn5H66TQgw8uQ6HfG+h2 GtOsn1nlvuk= =GDqb -----END PGP SIGNATURE----- Merge tag 'sched-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler updates from Ingo Molnar: "Fair scheduler (SCHED_OTHER) improvements: - Remove the old and now unused SIS_PROP code & option - Scan cluster before LLC in the wake-up path - Use candidate prev/recent_used CPU if scanning failed for cluster wakeup NUMA scheduling improvements: - Improve the VMA access-PID code to better skip/scan VMAs - Extend tracing to cover VMA-skipping decisions - Improve/fix the recently introduced sched_numa_find_nth_cpu() code - Generalize numa_map_to_online_node() Energy scheduling improvements: - Remove the EM_MAX_COMPLEXITY limit - Add tracepoints to track energy computation - Make the behavior of the 'sched_energy_aware' sysctl more consistent - Consolidate and clean up access to a CPU's max compute capacity - Fix uclamp code corner cases RT scheduling improvements: - Drive dl_rq->overloaded with dl_rq->pushable_dl_tasks updates - Drive the ->rto_mask with rt_rq->pushable_tasks updates Scheduler scalability improvements: - Rate-limit updates to tg->load_avg - On x86 disable IBRS when CPU is offline to improve single-threaded performance - Micro-optimize in_task() and in_interrupt() - Micro-optimize the PSI code - Avoid updating PSI triggers and ->rtpoll_total when there are no state changes Core scheduler infrastructure improvements: - Use saved_state to reduce some spurious freezer wakeups - Bring in a handful of fast-headers improvements to scheduler headers - Make the scheduler UAPI headers more widely usable by user-space - Simplify the control flow of scheduler syscalls by using lock guards - Fix sched_setaffinity() vs. CPU hotplug race Scheduler debuggability improvements: - Disallow writing invalid values to sched_rt_period_us - Fix a race in the rq-clock debugging code triggering warnings - Fix a warning in the bandwidth distribution code - Micro-optimize in_atomic_preempt_off() checks - Enforce that the tasklist_lock is held in for_each_thread() - Print the TGID in sched_show_task() - Remove the /proc/sys/kernel/sched_child_runs_first sysctl ... and misc cleanups & fixes" * tag 'sched-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (82 commits) sched/fair: Remove SIS_PROP sched/fair: Use candidate prev/recent_used CPU if scanning failed for cluster wakeup sched/fair: Scan cluster before scanning LLC in wake-up path sched: Add cpus_share_resources API sched/core: Fix RQCF_ACT_SKIP leak sched/fair: Remove unused 'curr' argument from pick_next_entity() sched/nohz: Update comments about NEWILB_KICK sched/fair: Remove duplicate #include sched/psi: Update poll => rtpoll in relevant comments sched: Make PELT acronym definition searchable sched: Fix stop_one_cpu_nowait() vs hotplug sched/psi: Bail out early from irq time accounting sched/topology: Rename 'DIE' domain to 'PKG' sched/psi: Delete the 'update_total' function parameter from update_triggers() sched/psi: Avoid updating PSI triggers and ->rtpoll_total when there are no state changes sched/headers: Remove comment referring to rq::cpu_load, since this has been removed sched/numa: Complete scanning of inactive VMAs when there is no alternative sched/numa: Complete scanning of partial VMAs regardless of PID activity sched/numa: Move up the access pid reset logic sched/numa: Trace decisions related to skipping VMAs ... |
||
Linus Torvalds
|
3cf3fabccb |
Locking changes in this cycle are:
- Futex improvements: - Add the 'futex2' syscall ABI, which is an attempt to get away from the multiplex syscall and adds a little room for extentions, while lifting some limitations. - Fix futex PI recursive rt_mutex waiter state bug - Fix inter-process shared futexes on no-MMU systems - Use folios instead of pages - Micro-optimizations of locking primitives: - Improve arch_spin_value_unlocked() on asm-generic ticket spinlock architectures, to improve lockref code generation. - Improve the x86-32 lockref_get_not_zero() main loop by adding build-time CMPXCHG8B support detection for the relevant lockref code, and by better interfacing the CMPXCHG8B assembly code with the compiler. - Introduce arch_sync_try_cmpxchg() on x86 to improve sync_try_cmpxchg() code generation. Convert some sync_cmpxchg() users to sync_try_cmpxchg(). - Micro-optimize rcuref_put_slowpath() - Locking debuggability improvements: - Improve CONFIG_DEBUG_RT_MUTEXES=y to have a fast-path as well - Enforce atomicity of sched_submit_work(), which is de-facto atomic but was un-enforced previously. - Extend <linux/cleanup.h>'s no_free_ptr() with __must_check semantics - Fix ww_mutex self-tests - Clean up const-propagation in <linux/seqlock.h> and simplify the API-instantiation macros a bit. - RT locking improvements: - Provide the rt_mutex_*_schedule() primitives/helpers and use them in the rtmutex code to avoid recursion vs. rtlock on the PI state. - Add nested blocking lockdep asserts to rt_mutex_lock(), rtlock_lock() and rwbase_read_lock(). - Plus misc fixes & cleanups Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmU877IRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1g9jw/+N7rxQ78dmFCYh4UWnLCYvuKP0/ivHErG 493JcB8MupuA2tfJHIkDdr4aM2mNq2E61w69/WlZAQWWD6pdOhwgF5Xf5eoEcJm0 vsAhWBGLxihXdtevPuMAx0dEpg3AMp2wc6i5PkN831KdPUgCNsrKq9Bfnfef7/G8 MQTSHjmtba6jxleyxfEa4tE2xe5PJX825nRfkX2e1cf+stkYua+uJFxVxUfxFWGE 4pBy70D9OC7MsJ44WWOA1gwkVtMMiBTmRPNjlP8Gz2GQ0f3ERHRwYk3jDHOPHZI6 0GNt7pE3IMXQn2UuDtfkvv9IFTd+U5qD+APnWIn2ntWXqzGLFqOlmovMrobVn7El olYDCyweWPG71m1Qblsb1VK2QjRPQVJ9NAEg8RlDHIu2ThxHbMysDVGPVOYnPFq4 S8QFpmldzbNoPU4rDJyT1fAmoUIrusBHkl+Us3yGfC74iM+fHnDEvaSoMZbzEdY1 x/Nocj9XgKEgfXdYzrCWFmZ9xXqHkO25/wDL6yKqBdQtvaEalXuHTT6mQcYxrUPm Xx1BPan2Jg7p4u2oOFcVtKewUtRH9KBx8qytr5S+JK4PJbrBsixMnr84HLd/3X2V ykYkO+367T5MTYv4TnJDE5vdurzUqekKSCFPY3skPujPJfdLj1vsPzYf9iMkCLdo hU2f/R+Wpdk= =36Ff -----END PGP SIGNATURE----- Merge tag 'locking-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Info Molnar: "Futex improvements: - Add the 'futex2' syscall ABI, which is an attempt to get away from the multiplex syscall and adds a little room for extentions, while lifting some limitations. - Fix futex PI recursive rt_mutex waiter state bug - Fix inter-process shared futexes on no-MMU systems - Use folios instead of pages Micro-optimizations of locking primitives: - Improve arch_spin_value_unlocked() on asm-generic ticket spinlock architectures, to improve lockref code generation - Improve the x86-32 lockref_get_not_zero() main loop by adding build-time CMPXCHG8B support detection for the relevant lockref code, and by better interfacing the CMPXCHG8B assembly code with the compiler - Introduce arch_sync_try_cmpxchg() on x86 to improve sync_try_cmpxchg() code generation. Convert some sync_cmpxchg() users to sync_try_cmpxchg(). - Micro-optimize rcuref_put_slowpath() Locking debuggability improvements: - Improve CONFIG_DEBUG_RT_MUTEXES=y to have a fast-path as well - Enforce atomicity of sched_submit_work(), which is de-facto atomic but was un-enforced previously. - Extend <linux/cleanup.h>'s no_free_ptr() with __must_check semantics - Fix ww_mutex self-tests - Clean up const-propagation in <linux/seqlock.h> and simplify the API-instantiation macros a bit RT locking improvements: - Provide the rt_mutex_*_schedule() primitives/helpers and use them in the rtmutex code to avoid recursion vs. rtlock on the PI state. - Add nested blocking lockdep asserts to rt_mutex_lock(), rtlock_lock() and rwbase_read_lock() .. plus misc fixes & cleanups" * tag 'locking-core-2023-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits) futex: Don't include process MM in futex key on no-MMU locking/seqlock: Fix grammar in comment alpha: Fix up new futex syscall numbers locking/seqlock: Propagate 'const' pointers within read-only methods, remove forced type casts locking/lockdep: Fix string sizing bug that triggers a format-truncation compiler-warning locking/seqlock: Change __seqprop() to return the function pointer locking/seqlock: Simplify SEQCOUNT_LOCKNAME() locking/atomics: Use atomic_try_cmpxchg_release() to micro-optimize rcuref_put_slowpath() locking/atomic, xen: Use sync_try_cmpxchg() instead of sync_cmpxchg() locking/atomic/x86: Introduce arch_sync_try_cmpxchg() locking/atomic: Add generic support for sync_try_cmpxchg() and its fallback locking/seqlock: Fix typo in comment futex/requeue: Remove unnecessary ‘NULL’ initialization from futex_proxy_trylock_atomic() locking/local, arch: Rewrite local_add_unless() as a static inline function locking/debug: Fix debugfs API return value checks to use IS_ERR() locking/ww_mutex/test: Make sure we bail out instead of livelock locking/ww_mutex/test: Fix potential workqueue corruption locking/ww_mutex/test: Use prng instead of rng to avoid hangs at bootup futex: Add sys_futex_requeue() futex: Add flags2 argument to futex_requeue() ... |
||
Linus Torvalds
|
9e87705289 |
Initial bcachefs pull request for 6.7-rc1
Here's the bcachefs filesystem pull request. One new patch since last week: the exportfs constants ended up conflicting with other filesystems that are also getting added to the global enum, so switched to new constants picked by Amir. I'll also be sending another pull request later on in the cycle bringing things up to date my master branch that people are currently running; that will be restricted to fs/bcachefs/, naturally. Testing - fstests as well as the bcachefs specific tests in ktest: https://evilpiepirate.org/~testdashboard/ci?branch=bcachefs-for-upstream It's also been soaking in linux-next, which resulted in a whole bunch of smatch complaints and fixes and a patch or two from Kees. The only new non fs/bcachefs/ patch is the objtool patch that adds bcachefs functions to the list of noreturns. The patch that exports osq_lock() has been dropped for now, per Ingo. Prereq patch list: |
||
Linus Torvalds
|
8b16da681e |
NFSD 6.7 Release Notes
This release completes the SunRPC thread scheduler work that was begun in v6.6. The scheduler can now find an svc thread to wake in constant time and without a list walk. Thanks again to Neil Brown for this overhaul. Lorenzo Bianconi contributed infrastructure for a netlink-based NFSD control plane. The long-term plan is to provide the same functionality as found in /proc/fs/nfsd, plus some interesting additions, and then migrate the NFSD user space utilities to netlink. A long series to overhaul NFSD's NFSv4 operation encoding was applied in this release. The goals are to bring this family of encoding functions in line with the matching NFSv4 decoding functions and with the NFSv2 and NFSv3 XDR functions, preparing the way for better memory safety and maintainability. A further improvement to NFSD's write delegation support was contributed by Dai Ngo. This adds a CB_GETATTR callback, enabling the server to retrieve cached size and mtime data from clients holding write delegations. If the server can retrieve this information, it does not have to recall the delegation in some cases. The usual panoply of bug fixes and minor improvements round out this release. As always I am grateful to all contributors, reviewers, and testers. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmU5IuoACgkQM2qzM29m f5eVsg//bVp8S93ci/oDlKfzOwH2fO5e5rna91wrDpJxkd51h6KTx55dSRG5sjAZ EywIVOann6xCtsixAPyff5Cweg2dWvzQRsy1ZnvWQ1qZBzD5KAJY5LPkeSFUCKBo Zani/qTOYbxzgFMjZx+yDSXDPKG68WYZBQK59SI7mURu4SYdk8aRyNY8mjHfr0Vh Aqrcny4oVtXV4sL5P5G/2FUW7WKT3olA3jSYlRRNMhbs2qpEemRCCrspOEMMad+b t1+ZCg+U27PMranvOJnof4RU7peZbaxDWA0gyiUbivVXVtZn9uOs0ffhktkvechL ePc33dqdp2ITdKIPA6JlaRv5WflKXQw0YYM9Kv5mcR4A2el7owL4f/pMlPhtbYwJ IOJv15KdKVN979G2e6WMYiKK+iHfaUUguhMEXnfnGoAajHOZNQiUEo3iFQAD7LDc DvMF8d9QqYmB9IW8FOYaRRfZGJOQHf3TL79Nd08z/bn5swvlvfj77leux9Sb+0/m Luk2Xvz2AJVSXE31wzabaGHkizN+BtH+e4MMbXUHBPW5jE9v7XOnEUFr4UdZyr9P Gl87A7NcrzNjJWT5TrnzM4sOslNsx46Aeg+VuNt2fSRn2dm6iBu2B8s0N4imx6dV PX1y9VSLq5WRhjrFZ1qeiZdsuTaQtrEiNDoRIQR6nCJPAV80iFk= =B4wJ -----END PGP SIGNATURE----- Merge tag 'nfsd-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "This release completes the SunRPC thread scheduler work that was begun in v6.6. The scheduler can now find an svc thread to wake in constant time and without a list walk. Thanks again to Neil Brown for this overhaul. Lorenzo Bianconi contributed infrastructure for a netlink-based NFSD control plane. The long-term plan is to provide the same functionality as found in /proc/fs/nfsd, plus some interesting additions, and then migrate the NFSD user space utilities to netlink. A long series to overhaul NFSD's NFSv4 operation encoding was applied in this release. The goals are to bring this family of encoding functions in line with the matching NFSv4 decoding functions and with the NFSv2 and NFSv3 XDR functions, preparing the way for better memory safety and maintainability. A further improvement to NFSD's write delegation support was contributed by Dai Ngo. This adds a CB_GETATTR callback, enabling the server to retrieve cached size and mtime data from clients holding write delegations. If the server can retrieve this information, it does not have to recall the delegation in some cases. The usual panoply of bug fixes and minor improvements round out this release. As always I am grateful to all contributors, reviewers, and testers" * tag 'nfsd-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (127 commits) svcrdma: Fix tracepoint printk format svcrdma: Drop connection after an RDMA Read error NFSD: clean up alloc_init_deleg() NFSD: Fix frame size warning in svc_export_parse() NFSD: Rewrite synopsis of nfsd_percpu_counters_init() nfsd: Clean up errors in nfs3proc.c nfsd: Clean up errors in nfs4state.c NFSD: Clean up errors in stats.c NFSD: simplify error paths in nfsd_svc() NFSD: Clean up nfsd4_encode_seek() NFSD: Clean up nfsd4_encode_offset_status() NFSD: Clean up nfsd4_encode_copy_notify() NFSD: Clean up nfsd4_encode_copy() NFSD: Clean up nfsd4_encode_test_stateid() NFSD: Clean up nfsd4_encode_exchange_id() NFSD: Clean up nfsd4_do_encode_secinfo() NFSD: Clean up nfsd4_encode_access() NFSD: Clean up nfsd4_encode_readdir() NFSD: Clean up nfsd4_encode_entry4() NFSD: Add an nfsd4_encode_nfs_cookie4() helper ... |
||
Linus Torvalds
|
df9c65b5fc |
vfs-6.7.iov_iter
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZTppQwAKCRCRxhvAZXjc om2kAP4u+eLsrhJHfUPUttGUEkSkZE+5/s/f1A/1GcV51usLSgEAu8urxAnP49GW INaDABXaFfKx8/KI/H2YFZPKGwlNEwY= =PDDE -----END PGP SIGNATURE----- Merge tag 'vfs-6.7.iov_iter' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs Pull iov_iter updates from Christian Brauner: "This contain's David's iov_iter cleanup work to convert the iov_iter iteration macros to inline functions: - Remove last_offset from iov_iter as it was only used by ITER_PIPE - Add a __user tag on copy_mc_to_user()'s dst argument on x86 to match that on powerpc and get rid of a sparse warning - Convert iter->user_backed to user_backed_iter() in the sound PCM driver - Convert iter->user_backed to user_backed_iter() in a couple of infiniband drivers - Renumber the type enum so that the ITER_* constants match the order in iterate_and_advance*() - Since the preceding patch puts UBUF and IOVEC at 0 and 1, change user_backed_iter() to just use the type value and get rid of the extra flag - Convert the iov_iter iteration macros to always-inline functions to make the code easier to follow. It uses function pointers, but they get optimised away - Move the check for ->copy_mc to _copy_from_iter() and copy_page_from_iter_atomic() rather than in memcpy_from_iter_mc() where it gets repeated for every segment. Instead, we check once and invoke a side function that can use iterate_bvec() rather than iterate_and_advance() and supply a different step function - Move the copy-and-csum code to net/ where it can be in proximity with the code that uses it - Fold memcpy_and_csum() in to its two users - Move csum_and_copy_from_iter_full() out of line and merge in csum_and_copy_from_iter() since the former is the only caller of the latter - Move hash_and_copy_to_iter() to net/ where it can be with its only caller" * tag 'vfs-6.7.iov_iter' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: iov_iter, net: Move hash_and_copy_to_iter() to net/ iov_iter, net: Merge csum_and_copy_from_iter{,_full}() together iov_iter, net: Fold in csum_and_memcpy() iov_iter, net: Move csum_and_copy_to/from_iter() to net/ iov_iter: Don't deal with iter->copy_mc in memcpy_from_iter_mc() iov_iter: Convert iterate*() to inline funcs iov_iter: Derive user-backedness from the iterator type iov_iter: Renumber ITER_* constants infiniband: Use user_backed_iter() to see if iterator is UBUF/IOVEC sound: Fix snd_pcm_readv()/writev() to use iov access functions iov_iter, x86: Be consistent about the __user tag on copy_mc_to_user() iov_iter: Remove last_offset from iov_iter as it was for ITER_PIPE |
||
Jakub Kicinski
|
ec4c20ca09 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/mac80211/rx.c |
||
wuqiang.matt
|
4758560fa2 |
kprobes: unused header files removed
As kernel test robot reported, lib/test_objpool.c (trace:probes/for-next) has linux/version.h included, but version.h is not used at all. Then more unused headers are found in test_objpool.c and rethook.c, and all of them should be removed. Link: https://lore.kernel.org/all/20231023112245.6112-1-wuqiang.matt@bytedance.com/ Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202310191512.vvypKU5Z-lkp@intel.com/ Signed-off-by: wuqiang.matt <wuqiang.matt@bytedance.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
||
Jakub Kicinski
|
374d345d9b |
netlink: add variable-length / auto integers
We currently push everyone to use padding to align 64b values in netlink. Un-padded nla_put_u64() doesn't even exist any more. The story behind this possibly start with this thread: https://lore.kernel.org/netdev/20121204.130914.1457976839967676240.davem@davemloft.net/ where DaveM was concerned about the alignment of a structure containing 64b stats. If user space tries to access such struct directly: struct some_stats *stats = nla_data(attr); printf("A: %llu", stats->a); lack of alignment may become problematic for some architectures. These days we most often put every single member in a separate attribute, meaning that the code above would use a helper like nla_get_u64(), which can deal with alignment internally. Even for arches which don't have good unaligned access - access aligned to 4B should be pretty efficient. Kernel and well known libraries deal with unaligned input already. Padded 64b is quite space-inefficient (64b + pad means at worst 16B per attr vs 32b which takes 8B). It is also more typing: if (nla_put_u64_pad(rsp, NETDEV_A_SOMETHING_SOMETHING, value, NETDEV_A_SOMETHING_PAD)) Create a new attribute type which will use 32 bits at netlink level if value is small enough (probably most of the time?), and (4B-aligned) 64 bits otherwise. Kernel API is just: if (nla_put_uint(rsp, NETDEV_A_SOMETHING_SOMETHING, value)) Calling this new type "just" sint / uint with no specific size will hopefully also make people more comfortable with using it. Currently telling people "don't use u8, you may need the bits, and netlink will round up to 4B, anyway" is the #1 comment we give to newcomers. In terms of netlink layout it looks like this: 0 4 8 12 16 32b: [nlattr][ u32 ] 64b: [ pad ][nlattr][ u64 ] uint(32) [nlattr][ u32 ] uint(64) [nlattr][ u64 ] Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
Kent Overstreet
|
73badee428 |
lib/generic-radix-tree.c: Add peek_prev()
This patch adds genradix_peek_prev(), genradix_iter_rewind(), and genradix_for_each_reverse(), for iterating backwards over a generic radix tree. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
||
Kent Overstreet
|
9492261ff2 |
lib/generic-radix-tree.c: Don't overflow in peek()
When we started spreading new inode numbers throughout most of the 64 bit inode space, that triggered some corner case bugs, in particular some integer overflows related to the radix tree code. Oops. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> |
||
Kent Overstreet
|
b414e8ecd4 |
closures: Add a missing include
Fixes building in userspace. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
||
Kent Overstreet
|
8c8d2d9670 |
bcache: move closures to lib/
Prep work for bcachefs - being a fork of bcache it also uses closures Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Acked-by: Coly Li <colyli@suse.de> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> |
||
Alexey Dobriyan
|
68279f9c9f |
treewide: mark stuff as __ro_after_init
__read_mostly predates __ro_after_init. Many variables which are marked __read_mostly should have been __ro_after_init from day 1. Also, mark some stuff as "const" and "__init" while I'm at it. [akpm@linux-foundation.org: revert sysctl_nr_open_min, sysctl_nr_open_max changes due to arm warning] [akpm@linux-foundation.org: coding-style cleanups] Link: https://lkml.kernel.org/r/4f6bb9c0-abba-4ee4-a7aa-89265e886817@p183 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Hugh Dickins
|
1431996bf9 |
percpu_counter: extend _limited_add() to negative amounts
Though tmpfs does not need it, percpu_counter_limited_add() can be twice as useful if it works sensibly with negative amounts (subs) - typically decrements towards a limit of 0 or nearby: as suggested by Dave Chinner. And in the course of that reworking, skip the percpu counter sum if it is already obvious that the limit would be passed: as suggested by Tim Chen. Extend the comment above __percpu_counter_limited_add(), defining the behaviour with positive and negative amounts, allowing negative limits, but not bothering about overflow beyond S64_MAX. Link: https://lkml.kernel.org/r/8f86083b-c452-95d4-365b-f16a2e4ebcd4@google.com Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: Carlos Maiolino <cem@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Darrick J. Wong <djwong@kernel.org> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Tim Chen <tim.c.chen@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Hugh Dickins
|
beb9868628 |
shmem,percpu_counter: add _limited_add(fbc, limit, amount)
Percpu counter's compare and add are separate functions: without locking around them (which would defeat their purpose), it has been possible to overflow the intended limit. Imagine all the other CPUs fallocating tmpfs huge pages to the limit, in between this CPU's compare and its add. I have not seen reports of that happening; but tmpfs's recent addition of dquot_alloc_block_nodirty() in between the compare and the add makes it even more likely, and I'd be uncomfortable to leave it unfixed. Introduce percpu_counter_limited_add(fbc, limit, amount) to prevent it. I believe this implementation is correct, and slightly more efficient than the combination of compare and add (taking the lock once rather than twice when nearing full - the last 128MiB of a tmpfs volume on a machine with 128 CPUs and 4KiB pages); but it does beg for a better design - when nearing full, there is no new batching, but the costly percpu counter sum across CPUs still has to be done, while locked. Follow __percpu_counter_sum()'s example, including cpu_dying_mask as well as cpu_online_mask: but shouldn't __percpu_counter_compare() and __percpu_counter_limited_add() then be adding a num_dying_cpus() to num_online_cpus(), when they calculate the maximum which could be held across CPUs? But the times when it matters would be vanishingly rare. Link: https://lkml.kernel.org/r/bb817848-2d19-bcc8-39ca-ea179af0f0b4@google.com Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Tim Chen <tim.c.chen@intel.com> Cc: Dave Chinner <dchinner@redhat.com> Cc: Darrick J. Wong <djwong@kernel.org> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: Carlos Maiolino <cem@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Liam R. Howlett
|
099d7439ce |
maple_tree: add GFP_KERNEL to allocations in mas_expected_entries()
Users complained about OOM errors during fork without triggering
compaction. This can be fixed by modifying the flags used in
mas_expected_entries() so that the compaction will be triggered in low
memory situations. Since mas_expected_entries() is only used during fork,
the extra argument does not need to be passed through.
Additionally, the two test_maple_tree test cases and one benchmark test
were altered to use the correct locking type so that allocations would not
trigger sleeping and thus fail. Testing was completed with lockdep atomic
sleep detection.
The additional locking change requires rwsem support additions to the
tools/ directory through the use of pthreads pthread_rwlock_t. With this
change test_maple_tree works in userspace, as a module, and in-kernel.
Users may notice that the system gave up early on attempting to start new
processes instead of attempting to reclaim memory.
Link: https://lkml.kernel.org/r/20230915093243epcms1p46fa00bbac1ab7b7dca94acb66c44c456@epcms1p4
Link: https://lkml.kernel.org/r/20231012155233.2272446-1-Liam.Howlett@oracle.com
Fixes:
|
||
Arnd Bergmann
|
57e06f8c1f |
Qualcomm driver updates for v6.7
This introduces partial support for the Qualcomm Secure Execution Environment SCM interface, and uses this to implement EFI variable access on the Windows On Snapdragon devices (for now). The 32/64-bit calling convention detector of the SCM interface is updated to not choose 64-bit convention when Linux is 32-bit. The "extern" specifier is dropped from the interface include file. The LLCC driver gains support for carrying configuration for multiple different system/DDR configurations for a given platform, and selecting between them. Support for Q[DR]U1000 is added to the driver. All exported symbols are transitioned to EXPORT_SYMBOL_GPL(). The platform_drivers in the Qualcomm SoC are transitioned to the void-returning remove_new implementation. The rmtfs memory driver gains support for leaving guard pages around the used area, to avoid issues if the allocation happens to be placed adjacent to another protected memory region. The socinfo driver gains knowledge about IPQ8174, QCM6490, SM7150P and various PMICs used together with SM8550. -----BEGIN PGP SIGNATURE----- iQJJBAABCAAzFiEEBd4DzF816k8JZtUlCx85Pw2ZrcUFAmUsTdwVHGFuZGVyc3Nv bkBrZXJuZWwub3JnAAoJEAsfOT8Nma3FffsQAMcY5NKBZqbQu5wNr2zPnKW5m/30 lYi4bW42mlY6Mo3h97LLxjGM9bqsmPasfAxv/84viN0JYxrSVye/zNtD35qTQBtu t8O8vdOaOYXIc8dwqC16Fl0kI5pm9tl7p5SJmGAUZBvIGUIGngy3gZOYM+HzyMQr UXFO6dO0tQvjowd1t0xE51UNm4J79Vm8HjtuR1pc4i+fZhsy5XhZYq9e4531Yc7o lNacBugjXhurw/rz0odNuRzKn+He+7KQR/hSNv8B2MbH0ZUP+k4VUaRSD9TZyBgC cOahbCfVLkGwepPFGuaaJUUgo8/aa4HiAbdyOrNL2ozYkoLv/PbRrLF0R9KgXK5v LPXpqXt97+rWPnq2iPrfZlo4LAj6JVSCUCxIRZFcWyDFv+wHsYuRbO64s1+MC7+M CPpvup31PLGCeR9Joo/WTt9iAUPJ4BY9v4mkjIdmJF371WRryP4um5Ln6xMC+fIe U/Ss8mPNpSM+guDo8LbdCGAcxWTDk8TOXxa/888y/4Q5Mg97nn0hY2KK4JBmJ7I3 Thd0n9vXjM3oOwPGLC7Y2zj9ZQI5k7JKn331yPS4Hb20SKGEztlaJp4B1DdA5/ul 4BUoh3HWV7dB4l+felrAmPAzAUXvyfGrDBJhXe2dabRJjMhouQ6Wudn3OlC4VP/l fjszjVvPFt7CE30C =B1Kn -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmUv9yoACgkQYKtH/8kJ UifTOQ/+NUj5Y/sAZfMLY3Q3e8s2nsKZLHHUCH7O/DOR6ILc5DZcTI5a23kfIA9V VVluTEnRUzbSHCb3WPW3Yfgy5HpZoaLgXWXGgCsRVKRIODN745TOm2Hn/dFZF0Z7 Fso0oPplGKrvuxSlaxg+1fbJ7c5r8kE/TDu+ok0eiZGvzwfnVas4bB+27thdH/le tY/wS9BhHmBrs6k7gqCfEFWF7M6kS29FOPILIlAfxgUevgSIvAUMBH/KUAGw1Qo/ UNd372TwXkdw0pG2KOx8xR4iKFBfWX4PbHBtBbUZzAnqerDnNrh7p0qTlhfKXOpb jQWx3eqQIwFbbWZ39DxiLE8/h5ig3jF29u1s/vAG2Zb5o5cYwiRM7OjWW8Q8Ha1E ha2NSWMEaNniegnMeoy1VTN8uSYY+dUseKmLmP5vCobmYVKuX96iQx5pNBYhsrwN YOlkOkF1fXINFqSD5v2N4s4AdGx634GgP7azkjm6fGS+hlwKgWNzwH4HHgXNx/u/ IPRPw7U/hji2R++oNPtEOlNHoHWM6Zx0ema38qGTC69uAFHETxbFUmOBaX6q/7Ot AwpP25YozehwDoUVZRwR6CpHcVbKDl4oJhWaruflkxC+6YFTGYS2hPFiF6zbnQw9 u36QDkgNzhBG2LINlmqCAAoGWmC+mqwsqYN/DyKsUUSVEODyUng= =7XXT -----END PGP SIGNATURE----- Merge tag 'qcom-drivers-for-6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers Qualcomm driver updates for v6.7 This introduces partial support for the Qualcomm Secure Execution Environment SCM interface, and uses this to implement EFI variable access on the Windows On Snapdragon devices (for now). The 32/64-bit calling convention detector of the SCM interface is updated to not choose 64-bit convention when Linux is 32-bit. The "extern" specifier is dropped from the interface include file. The LLCC driver gains support for carrying configuration for multiple different system/DDR configurations for a given platform, and selecting between them. Support for Q[DR]U1000 is added to the driver. All exported symbols are transitioned to EXPORT_SYMBOL_GPL(). The platform_drivers in the Qualcomm SoC are transitioned to the void-returning remove_new implementation. The rmtfs memory driver gains support for leaving guard pages around the used area, to avoid issues if the allocation happens to be placed adjacent to another protected memory region. The socinfo driver gains knowledge about IPQ8174, QCM6490, SM7150P and various PMICs used together with SM8550. * tag 'qcom-drivers-for-6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (44 commits) soc: qcom: socinfo: Convert to platform remove callback returning void soc: qcom: smsm: Convert to platform remove callback returning void soc: qcom: smp2p: Convert to platform remove callback returning void soc: qcom: smem: Convert to platform remove callback returning void soc: qcom: rmtfs_mem: Convert to platform remove callback returning void soc: qcom: qcom_stats: Convert to platform remove callback returning void soc: qcom: qcom_gsbi: Convert to platform remove callback returning void soc: qcom: qcom_aoss: Convert to platform remove callback returning void soc: qcom: pmic_glink: Convert to platform remove callback returning void soc: qcom: ocmem: Convert to platform remove callback returning void soc: qcom: llcc-qcom: Convert to platform remove callback returning void soc: qcom: icc-bwmon: Convert to platform remove callback returning void firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit soc: qcom: llcc: Handle a second device without data corruption soc: qcom: Switch to EXPORT_SYMBOL_GPL() soc: qcom: smem: Annotate struct qcom_smem with __counted_by soc: qcom: rmtfs: Support discarding guard pages dt-bindings: reserved-memory: rmtfs: Allow guard pages dt-bindings: firmware: qcom,scm: document IPQ5018 compatible firmware: qcom_scm: disable SDI if required ... Link: https://lore.kernel.org/r/20231015204014.855672-1-andersson@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
||
wuqiang.matt
|
92f90d3b0d |
lib: objpool test module added
The test_objpool module (test_objpool) will run several testcases for objpool stress and performance evaluation. Each testcase will have all available cpu cores involved to create a situation of high parallel and high contention. As of now there are 5 groups and 5 * 2 testcases in total: 1) group 1: synchronous mode objpool is managed synchronously, that is, all objects are to be reclaimed before objpool finalization and the objpool owner makes sure of it. All threads on different cores run in the same pace 2) group 2: synchronous mode + hrtimer this case have 2 customers: normal threads and hrtimer softirqs 3) group 3: synchronous + overrun mode This test group is mainly for performance evaluation of missing cases when pre-allocated objects are less than the requested 4) group 4: asynchronous mode This case is just an emulation of kretprobe, with refcount used to control the objpool lifecycle 5) group 5: asynchronous mode with hrtimer hrtimer softirq is introduced to stress async objpool operations Link: https://lore.kernel.org/all/20231017135654.82270-3-wuqiang.matt@bytedance.com/ Signed-off-by: wuqiang.matt <wuqiang.matt@bytedance.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
||
wuqiang.matt
|
b4edb8d2d4 |
lib: objpool added: ring-array based lockless MPMC
objpool is a scalable implementation of high performance queue for object allocation and reclamation, such as kretprobe instances. With leveraging percpu ring-array to mitigate hot spots of memory contention, it delivers near-linear scalability for high parallel scenarios. The objpool is best suited for the following cases: 1) Memory allocation or reclamation are prohibited or too expensive 2) Consumers are of different priorities, such as irqs and threads Limitations: 1) Maximum objects (capacity) is fixed after objpool creation 2) All pre-allocated objects are managed in percpu ring array, which consumes more memory than linked lists Link: https://lore.kernel.org/all/20231017135654.82270-2-wuqiang.matt@bytedance.com/ Signed-off-by: wuqiang.matt <wuqiang.matt@bytedance.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
||
Yury Norov
|
6cb42f91aa |
bitmap: move bitmap_*_region() functions to bitmap.h
Now that bitmap_*_region() functions are implemented as thin wrappers around others, it's worth to move them to the header, as it opens room for compile-time optimizations. CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
NeilBrown
|
de9e82c355 |
lib: add light-weight queuing mechanism.
lwq is a FIFO single-linked queue that only requires a spinlock for dequeueing, which happens in process context. Enqueueing is atomic with no spinlock and can happen in any context. This is particularly useful when work items are queued from BH or IRQ context, and when they are handled one at a time by dedicated threads. Avoiding any locking when enqueueing means there is no need to disable BH or interrupts, which is generally best avoided (particularly when there are any RT tasks on the machine). This solution is superior to using "list_head" links because we need half as many pointers in the data structures, and because list_head lists would need locking to add items to the queue. This solution is superior to a bespoke solution as all locking and container_of casting is integrated, so the interface is simple. Despite the similar name, this solution meets a distinctly different need to kfifo. kfifo provides a fixed sized circular buffer to which data can be added at one end and removed at the other, and does not provide any locking. lwq does not have any size limit and works with data structures (objects?) rather than data (bytes). A unit test for basic functionality, which runs at boot time, is included. Signed-off-by: NeilBrown <neilb@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com> Cc: Kees Cook <keescook@chromium.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: David Gow <davidgow@google.com> Cc: linux-kernel@vger.kernel.org Message-Id: <20230911111333.4d1a872330e924a00acb905b@linux-foundation.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
||
NeilBrown
|
8a3e5975ed |
llist: add llist_del_first_this()
llist_del_first_this() deletes a specific entry from an llist, providing it is at the head of the list. Multiple threads can call this concurrently providing they each offer a different entry. This can be uses for a set of worker threads which are on the llist when they are idle. The head can always be woken, and when it is woken it can remove itself, and possibly wake the next if there is an excess of work to do. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
||
Yury Norov
|
1d4836527d |
bitmap: drop _reg_op() function
Now that all _reg_op() users are switched to alternative functions, _reg_op() machinery is not needed anymore. CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Yury Norov
|
9276819a68 |
bitmap: replace _reg_op(REG_OP_ISFREE) with find_next_bit()
_reg_op(REG_OP_ISFREE) can be trivially replaced with find_next_bit(). Doing that opens room for potential small_const_nbits() optimization. CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Yury Norov
|
add00c76ee |
bitmap: replace _reg_op(REG_OP_RELEASE) with bitmap_clear()
_reg_op(REG_OP_RELEASE) duplicates bitmap_clear(). CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Yury Norov
|
eae5acbd75 |
bitmap: replace _reg_op(REG_OP_ALLOC) with bitmap_set()
_reg_op(REG_OP_ALLOC) duplicates bitmap_set(). CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Yury Norov
|
b085f969ed |
bitmap: fix opencoded bitmap_allocate_region()
bitmap_find_region() opencodes bitmap_allocate_region(). CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Yury Norov
|
6d5d3a0c33 |
bitmap: add test for bitmap_*_region() functions
Test basic functionality of bitmap_{allocate,release,find_free}_region() functions. CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Yury Norov
|
82bf9bdfbc |
bitmap: align __reg_op() wrappers with modern coding style
Fix comments so that scripts/kernel-doc doesn't warn, and fix for-loop stype in bitmap_find_free_region(). CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Yury Norov
|
aae06fc1b5 |
lib/bitmap: split-out string-related operations to a separate files
lib/bitmap.c and corresponding include/linux/bitmap.h are intended to hold functions related to operations on bitmaps, like bitmap_shift or bitmap_set. Historically, some string-related operations like bitmap_parse are also reside in lib/bitmap.c. Now that the subsystem evolves, string-related bitmap operations became a significant part of the file. Because they are quite different from the other bitmap functions by nature, it's worth to split them to a separate source/header files. CC: Andrew Morton <akpm@linux-foundation.org> CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Andy Shevchenko
|
7733aa8938 |
bitmap: Remove dead code, i.e. bitmap_copy_le()
Besides the fact it's not used anywhere it should be implemented differently, i.e. via helpers from linux/byteorder/generic.h. Yet the helpers themselves need to be introduced first. Also note, the function lacks of the test cases, they must be provided. Hence, drop the current dead code for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Jonathan Neuschäfer
|
8ed13a762c |
bitmap: Fix a typo ("identify map")
A map in which each element is mapped to itself is called an "identity map". Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Randy Dunlap
|
57f728d59f |
cpumask: kernel-doc cleanups and additions
Clean up some punctutation and abbreviations. Add kernel-doc notation for one function and function return value for 39 functions. cpumask.h: Fix some punctuation (plural vs. possessive). Fix some abbreviations (ie. -> i.e., id -> ID). Fix 35 warnings like this: include/linux/cpumask.h:161: warning: No description found for return value of 'cpumask_first' cpumask.c: Add Return: value for 4 functions. Add kernel-doc for cpumask_any_distribute(). Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> |
||
Uros Bizjak
|
4fbf8b136d |
locking/atomics: Use atomic_try_cmpxchg_release() to micro-optimize rcuref_put_slowpath()
Use atomic_try_cmpxchg() instead of atomic_cmpxchg(*ptr, old, new) == old in rcuref_put_slowpath(). On x86 the CMPXCHG instruction returns success in the ZF flag, so this change saves a compare after CMPXCHG. Additionaly, the compiler reorders some code blocks to follow likely/unlikely annotations in the atomic_try_cmpxchg() macro, improving the code from: 9a: f0 0f b1 0b lock cmpxchg %ecx,(%rbx) 9e: 83 f8 ff cmp $0xffffffff,%eax a1: 74 04 je a7 <rcuref_put_slowpath+0x27> a3: 31 c0 xor %eax,%eax to: 9a: f0 0f b1 0b lock cmpxchg %ecx,(%rbx) 9e: 75 4c jne ec <rcuref_put_slowpath+0x6c> a0: b0 01 mov $0x1,%al No functional change intended. Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul E. McKenney <paulmck@kernel.org> Link: https://lore.kernel.org/r/20230509150255.3691-1-ubizjak@gmail.com |
||
David Howells
|
b5f0e20f44
|
iov_iter, net: Move hash_and_copy_to_iter() to net/
Move hash_and_copy_to_iter() to be with its only caller in networking code. Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/r/20230925120309.1731676-13-dhowells@redhat.com cc: Alexander Viro <viro@zeniv.linux.org.uk> cc: Jens Axboe <axboe@kernel.dk> cc: Christoph Hellwig <hch@lst.de> cc: Christian Brauner <christian@brauner.io> cc: Matthew Wilcox <willy@infradead.org> cc: Linus Torvalds <torvalds@linux-foundation.org> cc: David Laight <David.Laight@ACULAB.COM> cc: "David S. Miller" <davem@davemloft.net> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: linux-block@vger.kernel.org cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org cc: netdev@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org> |
||
David Howells
|
6d0d419914
|
iov_iter, net: Move csum_and_copy_to/from_iter() to net/
Move csum_and_copy_to/from_iter() to net code now that the iteration framework can be #included. Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/r/20230925120309.1731676-10-dhowells@redhat.com cc: Alexander Viro <viro@zeniv.linux.org.uk> cc: Jens Axboe <axboe@kernel.dk> cc: Christoph Hellwig <hch@lst.de> cc: Christian Brauner <christian@brauner.io> cc: Matthew Wilcox <willy@infradead.org> cc: Linus Torvalds <torvalds@linux-foundation.org> cc: David Laight <David.Laight@ACULAB.COM> cc: "David S. Miller" <davem@davemloft.net> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: linux-block@vger.kernel.org cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org cc: netdev@vger.kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org> |
||
David Howells
|
c9eec08bac
|
iov_iter: Don't deal with iter->copy_mc in memcpy_from_iter_mc()
iter->copy_mc is only used with a bvec iterator and only by dump_emit_page() in fs/coredump.c so rather than handle this in memcpy_from_iter_mc() where it is checked repeatedly by _copy_from_iter() and copy_page_from_iter_atomic(), Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/r/20230925120309.1731676-9-dhowells@redhat.com cc: Alexander Viro <viro@zeniv.linux.org.uk> cc: Jens Axboe <axboe@kernel.dk> cc: Christoph Hellwig <hch@lst.de> cc: Christian Brauner <christian@brauner.io> cc: Matthew Wilcox <willy@infradead.org> cc: Linus Torvalds <torvalds@linux-foundation.org> cc: David Laight <David.Laight@ACULAB.COM> cc: linux-block@vger.kernel.org cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org Signed-off-by: Christian Brauner <brauner@kernel.org> |
||
Ingo Molnar
|
8db30574db |
Merge branch 'sched/urgent' into sched/core, to pick up fixes and refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
Jakub Kicinski
|
2606cf059c |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts (or adjacent changes of note). Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Liam R. Howlett
|
a8091f039c |
maple_tree: add MAS_UNDERFLOW and MAS_OVERFLOW states
When updating the maple tree iterator to avoid rewalks, an issue was
introduced when shifting beyond the limits. This can be seen by trying to
go to the previous address of 0, which would set the maple node to
MAS_NONE and keep the range as the last entry.
Subsequent calls to mas_find() would then search upwards from mas->last
and skip the value at mas->index/mas->last. This showed up as a bug in
mprotect which skips the actual VMA at the current range after attempting
to go to the previous VMA from 0.
Since MAS_NONE may already be set when searching for a value that isn't
contained within a node, changing the handling of MAS_NONE in mas_find()
would make the code more complicated and error prone. Furthermore, there
was no way to tell which limit was hit, and thus which action to take
(next or the entry at the current range).
This solution is to add two states to track what happened with the
previous iterator action. This allows for the expected behaviour of the
next command to return the correct item (either the item at the range
requested, or the next/previous).
Tests are also added and updated accordingly.
Link: https://lkml.kernel.org/r/20230921181236.509072-3-Liam.Howlett@oracle.com
Link: https://gist.github.com/heatd/85d2971fae1501b55b6ea401fbbe485b
Link: https://lore.kernel.org/linux-mm/20230921181236.509072-1-Liam.Howlett@oracle.com/
Fixes:
|
||
Jinjie Ruan
|
8040345fda |
kunit: test: Fix the possible memory leak in executor_test
When CONFIG_KUNIT_ALL_TESTS=y, making CONFIG_DEBUG_KMEMLEAK=y and CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN=y, the below memory leak is detected. If kunit_filter_suites() succeeds, not only copy but also filtered_suite and filtered_suite->test_cases should be freed. So as Rae suggested, to avoid the suite set never be freed when KUNIT_ASSERT_EQ() fails and exits after kunit_filter_suites() succeeds, update kfree_at_end() func to free_suite_set_at_end() to use kunit_free_suite_set() to free them as kunit_module_exit() and kunit_run_all_tests() do it. As the second arg got of free_suite_set_at_end() is a local variable, copy it for free to avoid wild-memory-access. After applying this patch, the following memory leak is never detected. unreferenced object 0xffff8881001de400 (size 1024): comm "kunit_try_catch", pid 1396, jiffies 4294720452 (age 932.801s) hex dump (first 32 bytes): 73 75 69 74 65 32 00 00 00 00 00 00 00 00 00 00 suite2.......... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff817db753>] __kmalloc_node_track_caller+0x53/0x150 [<ffffffff817bd242>] kmemdup+0x22/0x50 [<ffffffff829e961d>] kunit_filter_suites+0x44d/0xcc0 [<ffffffff829eb69f>] filter_suites_test+0x12f/0x360 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff8881052cd388 (size 192): comm "kunit_try_catch", pid 1396, jiffies 4294720452 (age 932.801s) hex dump (first 32 bytes): a0 85 9e 82 ff ff ff ff 80 cd 7c 84 ff ff ff ff ..........|..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff817dbad2>] __kmalloc+0x52/0x150 [<ffffffff829e9651>] kunit_filter_suites+0x481/0xcc0 [<ffffffff829eb69f>] filter_suites_test+0x12f/0x360 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff888100da8400 (size 1024): comm "kunit_try_catch", pid 1398, jiffies 4294720454 (age 781.945s) hex dump (first 32 bytes): 73 75 69 74 65 32 00 00 00 00 00 00 00 00 00 00 suite2.......... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff817db753>] __kmalloc_node_track_caller+0x53/0x150 [<ffffffff817bd242>] kmemdup+0x22/0x50 [<ffffffff829e961d>] kunit_filter_suites+0x44d/0xcc0 [<ffffffff829eb13f>] filter_suites_test_glob_test+0x12f/0x560 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff888105117878 (size 96): comm "kunit_try_catch", pid 1398, jiffies 4294720454 (age 781.945s) hex dump (first 32 bytes): a0 85 9e 82 ff ff ff ff a0 ac 7c 84 ff ff ff ff ..........|..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff817dbad2>] __kmalloc+0x52/0x150 [<ffffffff829e9651>] kunit_filter_suites+0x481/0xcc0 [<ffffffff829eb13f>] filter_suites_test_glob_test+0x12f/0x560 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff888102c31c00 (size 1024): comm "kunit_try_catch", pid 1404, jiffies 4294720460 (age 781.948s) hex dump (first 32 bytes): 6e 6f 72 6d 61 6c 5f 73 75 69 74 65 00 00 00 00 normal_suite.... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff817db753>] __kmalloc_node_track_caller+0x53/0x150 [<ffffffff817bd242>] kmemdup+0x22/0x50 [<ffffffff829ecf17>] kunit_filter_attr_tests+0xf7/0x860 [<ffffffff829e99ff>] kunit_filter_suites+0x82f/0xcc0 [<ffffffff829ea975>] filter_attr_test+0x195/0x5f0 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff8881052cd250 (size 192): comm "kunit_try_catch", pid 1404, jiffies 4294720460 (age 781.948s) hex dump (first 32 bytes): a0 85 9e 82 ff ff ff ff 00 a9 7c 84 ff ff ff ff ..........|..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff817dbad2>] __kmalloc+0x52/0x150 [<ffffffff829ecfc1>] kunit_filter_attr_tests+0x1a1/0x860 [<ffffffff829e99ff>] kunit_filter_suites+0x82f/0xcc0 [<ffffffff829ea975>] filter_attr_test+0x195/0x5f0 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff888104f4e400 (size 1024): comm "kunit_try_catch", pid 1408, jiffies 4294720464 (age 781.944s) hex dump (first 32 bytes): 73 75 69 74 65 00 00 00 00 00 00 00 00 00 00 00 suite........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff817db753>] __kmalloc_node_track_caller+0x53/0x150 [<ffffffff817bd242>] kmemdup+0x22/0x50 [<ffffffff829ecf17>] kunit_filter_attr_tests+0xf7/0x860 [<ffffffff829e99ff>] kunit_filter_suites+0x82f/0xcc0 [<ffffffff829e9fc3>] filter_attr_skip_test+0x133/0x6e0 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 unreferenced object 0xffff8881052cc620 (size 192): comm "kunit_try_catch", pid 1408, jiffies 4294720464 (age 781.944s) hex dump (first 32 bytes): a0 85 9e 82 ff ff ff ff c0 a8 7c 84 ff ff ff ff ..........|..... 00 00 00 00 00 00 00 00 02 00 00 00 02 00 00 00 ................ backtrace: [<ffffffff817dbad2>] __kmalloc+0x52/0x150 [<ffffffff829ecfc1>] kunit_filter_attr_tests+0x1a1/0x860 [<ffffffff829e99ff>] kunit_filter_suites+0x82f/0xcc0 [<ffffffff829e9fc3>] filter_attr_skip_test+0x133/0x6e0 [<ffffffff829e802a>] kunit_generic_run_threadfn_adapter+0x4a/0x90 [<ffffffff81236fc6>] kthread+0x2b6/0x380 [<ffffffff81096afd>] ret_from_fork+0x2d/0x70 [<ffffffff81003511>] ret_from_fork_asm+0x11/0x20 Fixes: |