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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id e195-20020a2550cc000000b00d8679407796sm4282793ybb.48.2023.09.29.20.23.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Sep 2023 20:23:19 -0700 (PDT) Date: Fri, 29 Sep 2023 20:23:11 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@ripple.attlocal.net To: Andrew Morton cc: Christian Brauner , Carlos Maiolino , Chuck Lever , Jan Kara , Matthew Wilcox , Johannes Weiner , Axel Rasmussen , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 0/8] shmem,tmpfs: general maintenance Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Rspam-User: X-Stat-Signature: 1je3d6rugweac1h6n9ugg57ixypak6sy X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 9AD251A0012 X-HE-Tag: 1696044202-793151 X-HE-Meta: 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 ifQ6RgSg PVCxaXemDt2istsQ3qOQF8mqiMm1sVRF/fjkMTPjjNRlno3bLKJ35jPCaW4AJfHjr9vT26NG5d41btJIYq4+zquxX1ihnT7O2Zq2gGlDJwI5RXh+5rod5fSnh3YMi4y+LnZ/qXqENKm4wOBtb5iG6BHXMAQAHIYQhhfp3oN+Ur/GRvzidmqGVXtqWxHE5NluJ5FtYlKJSbZyz3DACMHb6uXc++jHRKF/UVO1ODm0l0C67PtgH+cL+qkOeZ5WuP2+IU2RMV76thTwszy30DAqYNdncqAe9I++yaCUURrqYNd2p61erU9BvN0y8XAXJZ6uz/MV3asXAiWGlbpZbt/tEPjzPJ1JEAGZ7rk3RHAtI1qgimPo= 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: And here is a series of patches based on v6.6-rc3: mostly just cosmetic mods in mm/shmem.c, but the last two enforcing the "size=" limit better. 8/8 goes into percpu counter territory, and could stand alone: I'll add some more Cc's on that one. Applies to any v6.6-rc so far, and to next-20230929 and to mm-everything-2023-09-29-23-51: hah, there's now an 09-30-01-16, I haven't tried it yet, but this should be good on that too. 1/8 shmem: shrink shmem_inode_info: dir_offsets in a union 2/8 shmem: remove vma arg from shmem_get_folio_gfp() 3/8 shmem: factor shmem_falloc_wait() out of shmem_fault() 4/8 shmem: trivial tidyups, removing extra blank lines, etc 5/8 shmem: shmem_acct_blocks() and shmem_inode_acct_blocks() 6/8 shmem: move memcg charge out of shmem_add_to_page_cache() 7/8 shmem: _add_to_page_cache() before shmem_inode_acct_blocks() 8/8 shmem,percpu_counter: add _limited_add(fbc, limit, amount) include/linux/percpu_counter.h | 23 ++ include/linux/shmem_fs.h | 16 +- lib/percpu_counter.c | 53 ++++ mm/shmem.c | 500 +++++++++++++++++------------------ 4 files changed, 333 insertions(+), 259 deletions(-) Hugh