user/sven/linux.git/include/asm-generic, branch v6.1.5

Merge tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2022-12-02T21:39:38Z

Pull misc hotfixes from Andrew Morton: "15 hotfixes, 11 marked cc:stable. Only three or four of the latter address post-6.0 issues, which is hopefully a sign that things are converging" * tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: revert "kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible" Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled drm/amdgpu: temporarily disable broken Clang builds due to blown stack-frame mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths mm/khugepaged: fix GUP-fast interaction by sending IPI mm/khugepaged: take the right locks for page table retraction mm: migrate: fix THP's mapcount on isolation mm: introduce arch_has_hw_nonleaf_pmd_young() mm: add dummy pmd_young() for architectures not having it mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes() tools/vm/slabinfo-gnuplot: use "grep -E" instead of "egrep" nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED processing madvise: use zap_page_range_single for madvise dontneed mm: replace VM_WARN_ON to pr_warn if the node is offline with __GFP_THISNODE

mm/khugepaged: fix GUP-fast interaction by sending IPI

2022-11-30T22:49:42Z

Since commit 70cbc3cc78a99 ("mm: gup: fix the fast GUP race against THP collapse"), the lockless_pages_from_mm() fastpath rechecks the pmd_t to ensure that the page table was not removed by khugepaged in between. However, lockless_pages_from_mm() still requires that the page table is not concurrently freed. Fix it by sending IPIs (if the architecture uses semi-RCU-style page table freeing) before freeing/reusing page tables. Link: https://lkml.kernel.org/r/20221129154730.2274278-2-jannh@google.com Link: https://lkml.kernel.org/r/20221128180252.1684965-2-jannh@google.com Link: https://lkml.kernel.org/r/20221125213714.4115729-2-jannh@google.com Fixes: ba76149f47d8 ("thp: khugepaged") Signed-off-by: Jann Horn Reviewed-by: Yang Shi Acked-by: David Hildenbrand Cc: John Hubbard Cc: Peter Xu Cc: Signed-off-by: Andrew Morton

Merge tag 'hardening-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2022-11-11T19:41:02Z

Pull kernel hardening fix from Kees Cook: - Fix !SMP placement of '.data..decrypted' section (Nathan Chancellor) * tag 'hardening-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: vmlinux.lds.h: Fix placement of '.data..decrypted' section

Merge tag 'hyperv-fixes-signed-20221110' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

2022-11-11T17:24:03Z

Pull hyperv fixes from Wei Liu: - Fix TSC MSR write for root partition (Anirudh Rayabharam) - Fix definition of vector in pci-hyperv driver (Dexuan Cui) - A few other misc patches * tag 'hyperv-fixes-signed-20221110' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: PCI: hv: Fix the definition of vector in hv_compose_msi_msg() MAINTAINERS: remove sthemmin x86/hyperv: fix invalid writes to MSRs during root partition kexec clocksource/drivers/hyperv: add data structure for reference TSC MSR Drivers: hv: fix repeated words in comments x86/hyperv: Remove BUG_ON() for kmap_local_page()

vmlinux.lds.h: Fix placement of '.data..decrypted' section

2022-11-08T17:59:19Z

Commit d4c639990036 ("vmlinux.lds.h: Avoid orphan section with !SMP") fixed an orphan section warning by adding the '.data..decrypted' section to the linker script under the PERCPU_DECRYPTED_SECTION define but that placement introduced a panic with !SMP, as the percpu sections are not instantiated with that configuration so attempting to access variables defined with DEFINE_PER_CPU_DECRYPTED() will result in a page fault. Move the '.data..decrypted' section to the DATA_MAIN define so that the variables in it are properly instantiated at boot time with CONFIG_SMP=n. Cc: stable@vger.kernel.org Fixes: d4c639990036 ("vmlinux.lds.h: Avoid orphan section with !SMP") Link: https://lore.kernel.org/cbbd3548-880c-d2ca-1b67-5bb93b291d5f@huawei.com/ Debugged-by: Ard Biesheuvel Reported-by: Zhao Wenhui Tested-by: xiafukun Signed-off-by: Nathan Chancellor Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20221108174934.3384275-1-nathan@kernel.org

clocksource/drivers/hyperv: add data structure for reference TSC MSR

2022-11-03T15:50:28Z

Add a data structure to represent the reference TSC MSR similar to other MSRs. This simplifies the code for updating the MSR. Signed-off-by: Anirudh Rayabharam Reviewed-by: Michael Kelley Link: https://lore.kernel.org/r/20221027095729.1676394-2-anrayabh@linux.microsoft.com Signed-off-by: Wei Liu

asm-generic: compat: fix compat_arg_u64() and compat_arg_u64_dual()

2022-10-31T23:20:11Z

The macros are defined backwards. This affects the following compat syscalls: - compat_sys_truncate64() - compat_sys_ftruncate64() - compat_sys_fallocate() - compat_sys_sync_file_range() - compat_sys_fadvise64_64() - compat_sys_readahead() - compat_sys_pread64() - compat_sys_pwrite64() Fixes: 43d5de2b67d7 ("asm-generic: compat: Support BE for long long args in 32-bit ABIs") Signed-off-by: Andreas Schwab [mpe: Add list of affected syscalls] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/871qqoyvni.fsf_-_@igel.home

ftrace,kcfi: Separate ftrace_stub() and ftrace_stub_graph()

2022-10-20T15:10:27Z

Different function signatures means they needs to be different functions; otherwise CFI gets upset. As triggered by the ftrace boot tests: [] CFI failure at ftrace_return_to_handler+0xac/0x16c (target: ftrace_stub+0x0/0x14; expected type: 0x0a5d5347) Fixes: 3c516f89e17e ("x86: Add support for CONFIG_CFI_CLANG") Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Mark Rutland Tested-by: Mark Rutland Link: https://lkml.kernel.org/r/Y06dg4e1xF6JTdQq@hirez.programming.kicks-ass.net

Merge tag 'mm-nonmm-stable-2022-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2022-10-12T18:00:22Z

Pull non-MM updates from Andrew Morton: - hfs and hfsplus kmap API modernization (Fabio Francesco) - make crash-kexec work properly when invoked from an NMI-time panic (Valentin Schneider) - ntfs bugfixes (Hawkins Jiawei) - improve IPC msg scalability by replacing atomic_t's with percpu counters (Jiebin Sun) - nilfs2 cleanups (Minghao Chi) - lots of other single patches all over the tree! * tag 'mm-nonmm-stable-2022-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (71 commits) include/linux/entry-common.h: remove has_signal comment of arch_do_signal_or_restart() prototype proc: test how it holds up with mapping'less process mailmap: update Frank Rowand email address ia64: mca: use strscpy() is more robust and safer init/Kconfig: fix unmet direct dependencies ia64: update config files nilfs2: replace WARN_ONs by nilfs_error for checkpoint acquisition failure fork: remove duplicate included header files init/main.c: remove unnecessary (void*) conversions proc: mark more files as permanent nilfs2: remove the unneeded result variable nilfs2: delete unnecessary checks before brelse() checkpatch: warn for non-standard fixes tag style usr/gen_init_cpio.c: remove unnecessary -1 values from int file ipc/msg: mitigate the lock contention with percpu counter percpu: add percpu_counter_add_local and percpu_counter_sub_local fs/ocfs2: fix repeated words in comments relay: use kvcalloc to alloc page array in relay_alloc_page_array proc: make config PROC_CHILDREN depend on PROC_FS fs: uninline inode_maybe_inc_iversion() ...

Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2022-10-11T00:53:04Z

Pull MM updates from Andrew Morton: - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in linux-next for a couple of months without, to my knowledge, any negative reports (or any positive ones, come to that). - Also the Maple Tree from Liam Howlett. An overlapping range-based tree for vmas. It it apparently slightly more efficient in its own right, but is mainly targeted at enabling work to reduce mmap_lock contention. Liam has identified a number of other tree users in the kernel which could be beneficially onverted to mapletrees. Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat at [1]. This has yet to be addressed due to Liam's unfortunately timed vacation. He is now back and we'll get this fixed up. - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses clang-generated instrumentation to detect used-unintialized bugs down to the single bit level. KMSAN keeps finding bugs. New ones, as well as the legacy ones. - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of memory into THPs. - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to support file/shmem-backed pages. - userfaultfd updates from Axel Rasmussen - zsmalloc cleanups from Alexey Romanov - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and memory-failure - Huang Ying adds enhancements to NUMA balancing memory tiering mode's page promotion, with a new way of detecting hot pages. - memcg updates from Shakeel Butt: charging optimizations and reduced memory consumption. - memcg cleanups from Kairui Song. - memcg fixes and cleanups from Johannes Weiner. - Vishal Moola provides more folio conversions - Zhang Yi removed ll_rw_block() :( - migration enhancements from Peter Xu - migration error-path bugfixes from Huang Ying - Aneesh Kumar added ability for a device driver to alter the memory tiering promotion paths. For optimizations by PMEM drivers, DRM drivers, etc. - vma merging improvements from Jakub Matěn. - NUMA hinting cleanups from David Hildenbrand. - xu xin added aditional userspace visibility into KSM merging activity. - THP & KSM code consolidation from Qi Zheng. - more folio work from Matthew Wilcox. - KASAN updates from Andrey Konovalov. - DAMON cleanups from Kaixu Xia. - DAMON work from SeongJae Park: fixes, cleanups. - hugetlb sysfs cleanups from Muchun Song. - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core. Link: https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com [1] * tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (555 commits) hugetlb: allocate vma lock for all sharable vmas hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer hugetlb: fix vma lock handling during split vma and range unmapping mglru: mm/vmscan.c: fix imprecise comments mm/mglru: don't sync disk for each aging cycle mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol mm: memcontrol: use do_memsw_account() in a few more places mm: memcontrol: deprecate swapaccounting=0 mode mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled mm/secretmem: remove reduntant return value mm/hugetlb: add available_huge_pages() func mm: remove unused inline functions from include/linux/mm_inline.h selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd selftests/vm: add thp collapse shmem testing selftests/vm: add thp collapse file and tmpfs testing selftests/vm: modularize thp collapse memory operations selftests/vm: dedup THP helpers mm/khugepaged: add tracepoint to hpage_collapse_scan_file() mm/madvise: add file and shmem support to MADV_COLLAPSE ...