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Mon, 17 Apr 2023 12:36:19 +0000 (GMT) From: Pankaj Raghav To: viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, mcgrof@kernel.org, linux-kernel@vger.kernel.org, hare@suse.de, gost.dev@samsung.com, Pankaj Raghav Subject: [PATCH 0/4] convert create_page_buffers to folio_create_buffers Date: Mon, 17 Apr 2023 14:36:14 +0200 Message-Id: <20230417123618.22094-1-p.raghav@samsung.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOKsWRmVeSWpSXmKPExsWy7djPc7outrYpBu1XVC3mrF/DZvH68CdG i5sHdjJZ7Fk0CUjsPclicXnXHDaLGxOeMlp8XtrCbnH+73FWi98/5rA5cHlsXqHlsWlVJ5vH iRm/WTz6tqxi9Nh8utrj8yY5j01P3jIFsEdx2aSk5mSWpRbp2yVwZUz/uJSpoJWzYveL5WwN jLvZuxg5OSQETCT+LpzM0sXIxSEksIJRor1hLxOE84VRYsnUVYwQzmdGiaWNDYwwLZubV0NV LWeUeL3sPhuE85JR4vG7y0CDOTjYBLQkGjvBdogIJEos3tMNNolZYAGjxJM/a5hBaoQFPCTm 3+QBqWERUJVYfGA9E4jNK2ApseXXNxaIZfIS+w+eZYaIC0qcnPkELM4MFG/eOpsZZKaEwAUO iUWtX1ghGlwkln9bxARhC0u8Or4F6lEZidOTe6CGVks8vfEbqrmFUaJ/53o2kIMkBKwl+s7k gJjMApoS63fpQ5Q7SnR86WaBqOCTuPFWEOIEPolJ26YzQ4R5JTrahCCqlSR2/nwCtVRC4nLT HKilHhJNy/6CHSkkECvxbeJJ1gmMCrOQPDYLyWOzEG5YwMi8ilE8tbQ4Nz212DAvtVyvODG3 uDQvXS85P3cTIzAtnf53/NMOxrmvPuodYmTiYDzEKMHBrCTCe8bVKkWINyWxsiq1KD++qDQn tfgQozQHi5I4r7btyWQhgfTEktTs1NSC1CKYLBMHp1QDU3BSAt/5llsiHG+yLCbt3L30y8Hi tXVt5VuMF5bxKtSIXheNKvx5Nfm6dFHapMQkhjfTdkb4TrHSuyVjKrrFqX2Tz4OFc3/9W7Kx ac7snb/fBNwWNn/vuyvhk/wLrSh+lRtfH5wRup2w9UFalYvD7ZMTckIvbIwxdvOcsP2Jn/+r 8/tPLee49euZ1WLWeR1NU1yiF/wOD7t2cVlc8bxP8k/la/cXrZirduTcqedei34bxt9gmluR usAkQ3WafffLsx9fbM88MSddpy53etcLTtYThb/nytwo2Bii5DiNjzV2sWagT4JC/eYjXr++ 6mbX/Qo7zSclnTQ/ac8/S0bD1rzrreuiN6//bT3NOWXvvUwlluKMREMt5qLiRAA1CK2JugMA AA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprMIsWRmVeSWpSXmKPExsVy+t/xu7outrYpBisfcVrMWb+GzeL14U+M FjcP7GSy2LNoEpDYe5LF4vKuOWwWNyY8ZbT4vLSF3eL83+OsFr9/zGFz4PLYvELLY9OqTjaP EzN+s3j0bVnF6LH5dLXH501yHpuevGUKYI/SsynKLy1JVcjILy6xVYo2tDDSM7S00DMysdQz NDaPtTIyVdK3s0lJzcksSy3St0vQy5j+cSlTQStnxe4Xy9kaGHezdzFyckgImEhsbl7NBGIL CSxllNjYaQ4Rl5C4vbCJEcIWlvhzrYuti5ELqOY5o8StmfuAGjg42AS0JBo7weaICKRKrPhz B6yGWWAZo8Th73eZQWqEBTwk5t/kAalhEVCVWHxgPdguXgFLiS2/vrFAzJeX2H/wLFg5s4Cm xPpd+hAlghInZz4BK2EGKmneOpt5AiP/LISqWUiqZiGpWsDIvIpRJLW0ODc9t9hQrzgxt7g0 L10vOT93EyMwdrYd+7l5B+O8Vx/1DjEycTAeYpTgYFYS4T3japUixJuSWFmVWpQfX1Sak1p8 iNEU6OqJzFKiyfnA6M0riTc0MzA1NDGzNDC1NDNWEuf1LOhIFBJITyxJzU5NLUgtgulj4uCU amA6xZo+bVvA7PDQKP/wzXMNUm32JpXob5CeIXNmH/NjR4vucyE7IixdLzNbTlFIn8DUrXra VshT63NYpJmq0vMk14ZvTqsd1+Sm6/m7vjmz9b3rDyb+vIzM1vm+Lx0vSVjvCtjP3PPOIGiq 3H93l7A3qe252v9VvsauyNv+UG/1jl93eC9rzA9f+3/RfTaLRW4flu5Rfz9n36cwp67ZS541 LRXj+Nn9bHWGelW5Yti74zwcLi8zMj98yT3bVllqYXGIUd9tWdE5xSmHmlSf8D4sm3U/apIC q6rR0Tozm6el1kz1ArenBT1s9UwIzZjaE3ODTeTWj59iWya/Y+zIPdwv/+XdqvjipfsW6P9n FFdiKc5INNRiLipOBAD5qwgAJgMAAA== X-CMS-MailID: 20230417123620eucas1p229311e1b4c661bd493509135ba748300 X-Msg-Generator: CA X-RootMTR: 20230417123620eucas1p229311e1b4c661bd493509135ba748300 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230417123620eucas1p229311e1b4c661bd493509135ba748300 References: X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1763427287656047844?= X-GMAIL-MSGID: =?utf-8?q?1763427287656047844?= One of the first kernel panic we hit when we try to increase the block size > 4k is inside create_page_buffers()[1]. Even though buffer.c function do not support large folios (folios > PAGE_SIZE) at the moment, these changes are required when we want to remove that constraint. Willy had already mentioned that he wanted to convert create_page_buffers to folio_create_buffers but didn't get to it yet, so I decided to take a shot. No functional changes introduced. Changes since RFC[2]: - Renaming the helpers with folio_* - Calling folio_* helper version inside the *page* helper. [1] https://lore.kernel.org/all/ZBnGc4WbBOlnRUgd@casper.infradead.org/ [2]https://lore.kernel.org/lkml/20230414110821.21548-1-p.raghav@samsung.com/ Pankaj Raghav (4): fs/buffer: add folio_set_bh helper buffer: add folio_alloc_buffers() helper fs/buffer: add folio_create_empty_buffers helper fs/buffer: convert create_page_buffers to folio_create_buffers fs/buffer.c | 89 +++++++++++++++++++++++++------------ include/linux/buffer_head.h | 6 +++ 2 files changed, 66 insertions(+), 29 deletions(-)