linux-dev/arch/powerpc/configs, branch master

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 ...

Merge tag 'powerpc-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2022-10-09T21:05:15Z

Pull powerpc updates from Michael Ellerman: - Remove our now never-true definitions for pgd_huge() and p4d_leaf(). - Add pte_needs_flush() and huge_pmd_needs_flush() for 64-bit. - Add support for syscall wrappers. - Add support for KFENCE on 64-bit. - Update 64-bit HV KVM to use the new guest state entry/exit accounting API. - Support execute-only memory when using the Radix MMU (P9 or later). - Implement CONFIG_PARAVIRT_TIME_ACCOUNTING for pseries guests. - Updates to our linker script to move more data into read-only sections. - Allow the VDSO to be randomised on 32-bit. - Many other small features and fixes. Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Christophe Leroy, David Hildenbrand, Disha Goel, Fabiano Rosas, Gaosheng Cui, Gustavo A. R. Silva, Haren Myneni, Hari Bathini, Jilin Yuan, Joel Stanley, Kajol Jain, Kees Cook, Krzysztof Kozlowski, Laurent Dufour, Liang He, Li Huafei, Lukas Bulwahn, Madhavan Srinivasan, Nathan Chancellor, Nathan Lynch, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Rohan McLure, Russell Currey, Sachin Sant, Segher Boessenkool, Shrikanth Hegde, Tyrel Datwyler, Wolfram Sang, ye xingchen, and Zheng Yongjun. * tag 'powerpc-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (214 commits) KVM: PPC: Book3S HV: Fix stack frame regs marker powerpc: Don't add __powerpc_ prefix to syscall entry points powerpc/64s/interrupt: Fix stack frame regs marker powerpc/64: Fix msr_check_and_set/clear MSR[EE] race powerpc/64s/interrupt: Change must-hard-mask interrupt check from BUG to WARN powerpc/pseries: Add firmware details to the hardware description powerpc/powernv: Add opal details to the hardware description powerpc: Add device-tree model to the hardware description powerpc/64: Add logical PVR to the hardware description powerpc: Add PVR & CPU name to hardware description powerpc: Add hardware description string powerpc/configs: Enable PPC_UV in powernv_defconfig powerpc/configs: Update config files for removed/renamed symbols powerpc/mm: Fix UBSAN warning reported on hugetlb powerpc/mm: Always update max/min_low_pfn in mem_topology_setup() powerpc/mm/book3s/hash: Rename flush_tlb_pmd_range powerpc: Drops STABS_DEBUG from linker scripts powerpc/64s: Remove lost/old comment powerpc/64s: Remove old STAB comment powerpc: remove orphan systbl_chk.sh ...

mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol

2022-10-03T21:03:36Z

Since 2d1c498072de ("mm: memcontrol: make swap tracking an integral part of memory control"), CONFIG_MEMCG_SWAP hasn't been a user-visible config option anymore, it just means CONFIG_MEMCG && CONFIG_SWAP. Update the sites accordingly and drop the symbol. [ While touching the docs, remove two references to CONFIG_MEMCG_KMEM, which hasn't been a user-visible symbol for over half a decade. ] Link: https://lkml.kernel.org/r/20220926135704.400818-5-hannes@cmpxchg.org Signed-off-by: Johannes Weiner Acked-by: Shakeel Butt Cc: Hugh Dickins Cc: Michal Hocko Cc: Roman Gushchin Signed-off-by: Andrew Morton

powerpc/configs: Enable PPC_UV in powernv_defconfig

2022-09-30T08:35:52Z

Make sure the ultravisor code at least gets some build testing by enabling it in powernv_defconfig. Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220929051517.1903079-1-mpe@ellerman.id.au

powerpc/configs: Update config files for removed/renamed symbols

2022-09-30T08:35:52Z

Clean up config files by: - removing configs that were deleted in the past - removing configs not in tree and without recently pending patches - adding new configs that are replacements for old configs in the file For some detailed information, see: https://lore.kernel.org/kernel-janitors/20220929090645.1389-1-lukas.bulwahn@gmail.com/ Renamed: - CONFIG_PPC_PTDUMP -> CONFIG_GENERIC_PTDUMP e084728393a5 ("powerpc/ptdump: Convert powerpc to GENERIC_PTDUMP") Removed: - CONFIG_BLK_DEV_CRYPTOLOOP 47e9624616c8 ("block: remove support for cryptoloop and the xor transfer") - CONFIG_CRYPTO_RMD128 b21b9a5e0aef ("crypto: rmd128 - remove RIPE-MD 128 hash algorithm") - CONFIG_CRYPTO_RMD256 c15d4167f0b0 ("crypto: rmd256 - remove RIPE-MD 256 hash algorithm") - CONFIG_CRYPTO_RMD320 93f64202926f ("crypto: rmd320 - remove RIPE-MD 320 hash algorithm") - CONFIG_CRYPTO_SALSA20 663f63ee6d9c ("crypto: salsa20 - remove Salsa20 stream cipher algorithm") - CONFIG_CRYPTO_TGR192 87cd723f8978 ("crypto: tgr192 - remove Tiger 128/160/192 hash algorithms") - CONFIG_HARDENED_USERCOPY_PAGESPAN 1109a5d90701 ("usercopy: Remove HARDENED_USERCOPY_PAGESPAN") - CONFIG_RAPIDIO_TSI568, CONFIG_RAPIDIO_TSI57X 612d4904191f ("rapidio: remove not used code about RIO_VID_TUNDRA") - CONFIG_RAW_DRIVER 603e4922f1c8 ("remove the raw driver") - CONFIG_ROCKETPORT 3b00b6af7a5b ("tty: rocket, remove the driver") - CONFIG_ENABLE_MUST_CHECK 196793946264 ("Compiler Attributes: remove CONFIG_ENABLE_MUST_CHECK") Signed-off-by: Lukas Bulwahn [mpe: Add documentation of relevant commit for each symbol change] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220929101502.32527-1-lukas.bulwahn@gmail.com

arch: mm: rename FORCE_MAX_ZONEORDER to ARCH_FORCE_MAX_ORDER

2022-09-12T03:25:56Z

This Kconfig option is used by individual arch to set its desired MAX_ORDER. Rename it to reflect its actual use. Link: https://lkml.kernel.org/r/20220815143959.1511278-1-zi.yan@sent.com Acked-by: Mike Rapoport Signed-off-by: Zi Yan Acked-by: Guo Ren [csky] Acked-by: Arnd Bergmann Acked-by: Catalin Marinas [arm64] Acked-by: Huacai Chen [LoongArch] Acked-by: Michael Ellerman [powerpc] Cc: Vineet Gupta Cc: Taichi Sugaya Cc: Neil Armstrong Cc: Qin Jian Cc: Guo Ren Cc: Geert Uytterhoeven Cc: Thomas Bogendoerfer Cc: Dinh Nguyen Cc: Christophe Leroy Cc: Yoshinori Sato Cc: "David S. Miller" Cc: Chris Zankel Cc: Ley Foon Tan Signed-off-by: Andrew Morton

powerpc/64: Remove PPC64 special case for cputime accounting default

2022-09-05T04:14:27Z

Distro kernels tend to be moving to VIRT_CPU_ACCOUNTING_GEN, and there is not much reason why PPC64 should be special here. Remove the special case and make the ppc64 and pseries defconfigs use GEN accounting (others will use TICK, as-per Kconfig defaults). VIRT_CPU_ACCOUNTING_NATIVE does provide scaled vtime and stolen time apportioned between system and user time, and vtime accounting is not unconditionally enabled, and possibly other things. But it would be better at this point to extend GEN to cover important missing features rather than directing users back to a less used option. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220902085316.2071519-4-npiggin@gmail.com

powerpc/configs: Properly enable PAPR_SCM in pseries_defconfig

2022-09-04T12:39:59Z

My commit to add PAPR_SCM to pseries_defconfig failed to add the required dependencies, meaning the driver doesn't get built. Add the required LIBNVDIMM=m. Fixes: d6481a7195df ("powerpc/configs: Add PAPR_SCM to pseries_defconfig") Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220901014253.252927-1-mpe@ellerman.id.au

powerpc/microwatt: Add LiteX MMC driver

2022-08-26T01:02:21Z

Enable the LiteX MMC device and it's dependency the common clock framework. Signed-off-by: Joel Stanley Acked-by: Michael Neuling Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220804015708.5928-1-joel@jms.id.au

Remove DECnet support from kernel

2022-08-22T13:26:30Z

DECnet is an obsolete network protocol that receives more attention from kernel janitors than users. It belongs in computer protocol history museum not in Linux kernel. It has been "Orphaned" in kernel since 2010. The iproute2 support for DECnet was dropped in 5.0 release. The documentation link on Sourceforge says it is abandoned there as well. Leave the UAPI alone to keep userspace programs compiling. This means that there is still an empty neighbour table for AF_DECNET. The table of /proc/sys/net entries was updated to match current directories and reformatted to be alphabetical. Signed-off-by: Stephen Hemminger Acked-by: David Ahern Acked-by: Nikolay Aleksandrov Signed-off-by: David S. Miller