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Wed, 13 Aug 2025 15:03:16 -0700 (PDT) MIME-Version: 1.0 References: <20250801002131.255068-1-joannelkoong@gmail.com> <20250801002131.255068-11-joannelkoong@gmail.com> In-Reply-To: From: Joanne Koong Date: Wed, 13 Aug 2025 15:03:05 -0700 X-Gm-Features: Ac12FXwh9jEKYJ553fL2_do8VzdYgYiCjErR3whJjtdZ88-ia-FLAeyu-s6fzXY Message-ID: Subject: Re: [RFC PATCH v1 10/10] iomap: add granular dirty and writeback accounting To: Christoph Hellwig Cc: linux-mm@kvack.org, brauner@kernel.org, willy@infradead.org, jack@suse.cz, djwong@kernel.org, linux-fsdevel@vger.kernel.org, kernel-team@meta.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: D1003A000E X-Stat-Signature: 748j3xpkpiybdan5xn7mghmqrkxzu5ck X-Rspam-User: X-HE-Tag: 1755122597-555699 X-HE-Meta: U2FsdGVkX1/uQVBg1/8lHnScNoiTEESmWIbZ7+wdYeavZFvIHU8Z7meCQG4y97ZsbJSuC4yI3zENNJlHhsQRaNTnrA/lm1Z0DqRs3WzeDOBQTlxADehekZx9vFLGPrZqwMahuDLVlgtwuB8nxG2IhEPc9oeW0UljoC40KZqYe+xHgp9zNb319VefO4ACqEphrpoq2dvXk5ANBspnhzJ8wzxYorN+65WY5/cONgFVirju50MgNGYBbpM5gNZ01YeUnES4ugfS9YB9fxprrcfslKrzjySF5ZrYIkL2Av/0mMhHcAM+9wO0PiHyQiWkHSeDCuvEMgQXdzInTx311b82Th/JvXka/Vd6deg832dzVRIuiHdxAsbqPEJZ9TQibJFQYe2oenASoIGlW5ide43ViNt7YA/KLLAWY/uVVMjN8i3Rs0aiI5nrmRHW8aQguywDymYwUgyV7xh8FAV7FZK+rZ/WA3/72VBWro1wyc8JUdn9fOpnKNX9VDKJE0aSolBaaPJ97oKP5c3q1fX4m1iw22lj39Ecg6bn4yZ16DaSXw+qf9RMLOUUvTl4kS1mx1nOqFDuD9TwjAVuYSEJ9B3H9S/1AIZd0/CmT/vObsXdlBTwPE+ChL0SqYUNReBELqFO5U/MlVqCtqOvr7PdGSP4Wt4B65bUqwahYscB2mfXfAgeCB/5zNcZURpeGethsU6txBKKvuryfT58Bg32BoWYBc0LnlmBa9Q4oMJqk8d7u0K2I+/9bSrRggURaz5ontRDy/CJVhSe8815XwLKbya48NAghvm5bZOfj5FUtJZe88rAa11WM3XOgqgIoi4QJbwR27VQtEufw4KWWWmuXLa0S0XyklDIRKCYgFyRv5+StBljFv0sWXsPwcsCmXx9Z3aE+WFhUnUVrjTo9VG5s9GpYUrI16oiKiZooByn014DzMhuTdPK4Ze5nY46Hb5kSi33CcHhpuxorxpm4hknzLw Fi5nZwPu TbObO/np+9oiWAdx0wqOauUTPkcSd74B4Wbqylg8RyJIetQqmQtLL1u56/n8tolq0GBXuIDJipBEJhV7COSN7IURI7HcdJ0BSBS/bJnNyR8H9HU2nD5ZODMKQ8gazmXPEGwCsC6ZpYaosrGp3+ZA0WHaEG4fMjpnhYTqE9RCZymSHwULNiNgnSbmlRXRUWM23S4Ewq7ValvpeCcw9jBt6FDM9LFm8We7ug3EWSVMtSq2pNEpSReQzOX0xhYYXSP5SUP+zPcMtF6bR4zQXld2tHnOnjQsTj5SeolZngv1TtgcHbm95qOfDam43SRqwWi+kJKTN3HXCEK2WoFUS7TuAwyVf9WMdgSMF7pS4XHSHnkJgYNwzYkKMizTRmA== 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: On Tue, Aug 12, 2025 at 6:10=E2=80=AFPM Joanne Koong wrote: > > I need to look more into whether readahead/read_folio and writeback > run concurrently or not but if not, maybe read_bytes_pending and > write_bytes_pending could be consolidated together. Nvm, that doesn't work. read_folio() can still get called for a folio that's under writeback if it's not fully up to date.