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2023-05-26mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATEDVlastimil Babka1-1/+0
As discussed at LSF/MM [1] [2] and with no objections raised there, deprecate the SLAB allocator. Rename the user-visible option so that users with CONFIG_SLAB=y get a new prompt with explanation during make oldconfig, while make olddefconfig will just switch to SLUB. In all defconfigs with CONFIG_SLAB=y remove the line so those also switch to SLUB. Regressions due to the switch should be reported to linux-mm and slab maintainers. [1] https://lore.kernel.org/all/4b9fc9c6-b48c-198f-5f80-811a44737e5f@suse.cz/ [2] https://lwn.net/Articles/932201/ Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k Acked-by: Helge Deller <deller@gmx.de> # parisc
2023-04-06mm, treewide: redefine MAX_ORDER sanelyKirill A. Shutemov1-1/+1
MAX_ORDER currently defined as number of orders page allocator supports: user can ask buddy allocator for page order between 0 and MAX_ORDER-1. This definition is counter-intuitive and lead to number of bugs all over the kernel. Change the definition of MAX_ORDER to be inclusive: the range of orders user can ask from buddy allocator is 0..MAX_ORDER now. [kirill@shutemov.name: fix min() warning] Link: https://lkml.kernel.org/r/20230315153800.32wib3n5rickolvh@box [akpm@linux-foundation.org: fix another min_t warning] [kirill@shutemov.name: fixups per Zi Yan] Link: https://lkml.kernel.org/r/20230316232144.b7ic4cif4kjiabws@box.shutemov.name [akpm@linux-foundation.org: fix underlining in docs] Link: https://lore.kernel.org/oe-kbuild-all/202303191025.VRCTk6mP-lkp@intel.com/ Link: https://lkml.kernel.org/r/20230315113133.11326-11-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-11Merge tag 'mm-stable-2022-10-08' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 ...
2022-09-30powerpc/configs: Update config files for removed/renamed symbolsLukas Bulwahn1-1/+0
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 <lukas.bulwahn@gmail.com> [mpe: Add documentation of relevant commit for each symbol change] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220929101502.32527-1-lukas.bulwahn@gmail.com
2022-09-12arch: mm: rename FORCE_MAX_ZONEORDER to ARCH_FORCE_MAX_ORDERZi Yan1-1/+1
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 <rppt@linux.ibm.com> Signed-off-by: Zi Yan <ziy@nvidia.com> Acked-by: Guo Ren <guoren@kernel.org> [csky] Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64] Acked-by: Huacai Chen <chenhuacai@kernel.org> [LoongArch] Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Taichi Sugaya <sugaya.taichi@socionext.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Qin Jian <qinjian@cqplus1.com> Cc: Guo Ren <guoren@kernel.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Dinh Nguyen <dinguyen@kernel.org> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Zankel <chris@zankel.net> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2019-11-13powerpc/configs: remove obsolete CONFIG_INET_XFRM_MODE_* and ↵YueHaibing1-1/+0
CONFIG_INET6_XFRM_MODE_* These Kconfig options has been removed in commit 4c145dce2601 ("xfrm: make xfrm modes builtin") So there is no point to keep it in defconfigs any longer. Signed-off-by: YueHaibing <yuehaibing@huawei.com> [mpe: Extract from cross arch patch] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190612071901.21736-1-yuehaibing@huawei.com
2019-07-03powerpc/configs: Remove useless UEVENT_HELPER_PATHKrzysztof Kozlowski1-1/+0
Remove the CONFIG_UEVENT_HELPER_PATH because: 1. It is disabled since commit 1be01d4a5714 ("driver: base: Disable CONFIG_UEVENT_HELPER by default") as its dependency (UEVENT_HELPER) was made default to 'n', 2. It is not recommended (help message: "This should not be used today [...] creates a high system load") and was kept only for ancient userland, 3. Certain userland specifically requests it to be disabled (systemd README: "Legacy hotplug slows down the system and confuses udev"). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-04-18mtd: rawnand: Clarify Kconfig entry MTD_NANDMiquel Raynal1-1/+1
MTD_NAND is large and encloses much more than what the symbol is actually used for: raw NAND. Clarify the symbol by naming it MTD_RAW_NAND instead. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2017-08-28powerpc/configs: Drop unneeded CONFIG_CRYPTO_ANSI_CPRNGMichael Ellerman1-1/+0
Since commit 401e4238f35c ("crypto: rng - Make DRBG the default RNG") we no longer need to set CONFIG_CRYPTO_ANSI_CPRNG in our defconfigs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-28powerpc/configs: Update for symbol movement onlyMichael Ellerman1-1/+1
Update defconfigs for symbols that have moved around, without their value changing. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-10EDAC: Remove EDAC_MM_EDACBorislav Petkov1-1/+0
Move all the EDAC core functionality behind CONFIG_EDAC and get rid of that indirection. Update defconfigs which had it. While at it, fix dependencies such that EDAC depends on RAS for the tracepoints. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: linux-arm-kernel@lists.infradead.org Cc: linuxppc-dev@lists.ozlabs.org Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: linux-edac@vger.kernel.org
2016-07-08powerpc/configs: Remove old symbols from defconfigsAndrew Donnellan1-3/+1
Update defconfigs to remove old symbols and comments referencing old symbols. Dropped: * AVERAGE * INET_LRO * EXT3_DEFAULTS_TO_ORDERED * EXT3_FS_XATTR * I2O * INFINIBAND_AMSO1100 * INFINIBAND_EHCA * IP1000 Replaced: * BLK_DEV_XIP -> BLK_DEV_RAM_DAX * CLK_PPC_CORENET -> CLK_QORIQ * EXT2_FS_XIP -> FS_DAX * EXT3_FS* -> EXT4_FS* Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-01-20powerpc: Update all configs using savedefconfigMichael Ellerman1-15/+1
It looks like it's ~4 years since we updated some of these, so do a bulk update. Verified that the before and after generated configs are exactly the same. Which begs the question why update them? The answer is that it can be confusing when the stored defconfig drifts too far from the generated result. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-11-30netpoll: delete defconfig references to obsolete NETPOLL_TRAPPaul Gortmaker1-1/+0
In commit 9c62a68d13119a1ca9718381d97b0cb415ff4e9d ("netpoll: Remove dead packet receive code (CONFIG_NETPOLL_TRAP)") this Kconfig option was removed. So remove references to it from all defconfigs as well. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-28USB: delete CONFIG_USB_DEVICEFS from defconfigNaoki MATSUMOTO1-1/+0
It no longer occurs in Kconfig. USB: remove CONFIG_USB_DEVICEFS(fb28d58b) leaked remove defconfig. Signed-off-by: Naoki MATSUMOTO <nekomatu+linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-29powerpc/fsl: Remove CONFIG_IRQ_ALL_CPUS from mpc85xx/mpc86xx defconfigScott Wood1-1/+0
While this should be harmless now that distribute_irqs obeys MPIC_SINGLE_DEST_CPU, there's no reason to enable this on mpc85xx/mpc86xx since MPIC_SINGLE_DEST_CPU will always be set. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-16powerpc/85xx: Board support for GE IMP3AMartyn Welch1-0/+257
Initial board support for the GE IMP3A, a 3U compactPCI card with a p2020 processor. Signed-off-by: Martyn Welch <martyn.welch@ge.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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