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Fri, 12 Jan 2024 15:55:54 -0800 (PST) Received: from snowbird ([136.25.84.107]) by smtp.gmail.com with ESMTPSA id w5-20020a17090ad60500b0028ce12f8cdasm4807193pju.10.2024.01.12.15.55.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jan 2024 15:55:54 -0800 (PST) Date: Fri, 12 Jan 2024 15:55:52 -0800 From: Dennis Zhou To: Linus Torvalds Cc: Tejun Heo , Christoph Lameter , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [GIT PULL] percpu changes for v6.8-rc1 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspam-User: X-Stat-Signature: ptsouaf9j4rs6qfguoy8pch5srh7du9n X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 24B5316000F X-HE-Tag: 1705103755-359645 X-HE-Meta: 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 TytfYy1L BVw3js3Q/yyYoDFY3vrQn11h78dTCoFxE2x3Kai3RkeqnQdLhoi67JO7SM2BgcfcxpVuylx2VDHNoYmNeFMYZdA2DSVQd7fE1Wxko1XUB/hIfsGK6EmTs2jMg4PAFpmI+FfAdeChUNw/7rmjZioN4JZI3jQBVYAD9CgTXtg8in3y4H+J2daX8JcIrM3bH00ZO/X+g X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Linus, This enables the percpu page allocator for risc-v as a fallback path. Separately, I just sent out a respin of Thomas' cpu hotplug related fixes for percpu_counters in [1]. I'll hopefully pull that in shortly and get it into for-next for some wider testing. [1] https://lore.kernel.org/lkml/cover.1705101789.git.dennis@kernel.org/ Thanks, Dennis The following changes since commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a: Linux 6.7-rc4 (2023-12-03 18:52:56 +0900) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git tags/percpu-for-6.8 for you to fetch changes up to 6b9f29b81b155af023da95f560f738f29722b306: riscv: Enable pcpu page first chunk allocator (2023-12-14 00:24:06 -0800) ---------------------------------------------------------------- percpu: - Enable percpu page allocator for risc-v. There are risc-v configurations with sparse NUMA configurations and small vmalloc space causing dynamic percpu allocations to fail as the backing chunk stride is too far apart. ---------------------------------------------------------------- Alexandre Ghiti (2): mm: Introduce flush_cache_vmap_early() riscv: Enable pcpu page first chunk allocator arch/arc/include/asm/cacheflush.h | 1 + arch/arm/include/asm/cacheflush.h | 2 ++ arch/csky/abiv1/inc/abi/cacheflush.h | 1 + arch/csky/abiv2/inc/abi/cacheflush.h | 1 + arch/m68k/include/asm/cacheflush_mm.h | 1 + arch/mips/include/asm/cacheflush.h | 2 ++ arch/nios2/include/asm/cacheflush.h | 1 + arch/parisc/include/asm/cacheflush.h | 1 + arch/riscv/Kconfig | 2 ++ arch/riscv/include/asm/cacheflush.h | 3 ++- arch/riscv/include/asm/tlbflush.h | 1 + arch/riscv/mm/kasan_init.c | 8 ++++++++ arch/riscv/mm/tlbflush.c | 5 +++++ arch/sh/include/asm/cacheflush.h | 1 + arch/sparc/include/asm/cacheflush_32.h | 1 + arch/sparc/include/asm/cacheflush_64.h | 1 + arch/xtensa/include/asm/cacheflush.h | 6 ++++-- include/asm-generic/cacheflush.h | 6 ++++++ mm/percpu.c | 8 +------- 19 files changed, 42 insertions(+), 10 deletions(-)