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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Zi Yan , ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 2/4] ceph: convert ceph_wait_until_current_writes_complete() to folios Message-ID: References: <20260802-remove-wait-on-page-writeback-v1-0-6c35d6b3ad36@columbia.edu> <20260802-remove-wait-on-page-writeback-v1-2-6c35d6b3ad36@columbia.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260802-remove-wait-on-page-writeback-v1-2-6c35d6b3ad36@columbia.edu> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: C3E8710000B X-Stat-Signature: fozj1z9xosdp1484iejd9jfq684g8hwq X-Rspam-User: X-HE-Tag: 1785712958-991927 X-HE-Meta: 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 v82NSrYf bKHBrK1Q4HfrQb2hUfvL2wfQHcXt6TTcYDP/X2zu+aQh2Bu+jr9I9rL4DvuFEFxKhu+BkV8bBDYFF8USjWLlBnA+Pr4Olmfvz3KqD2rMnvwTRyorkAW53w2FC4Y56Berc1rFf431n3+F+Pp9Eu0wgRBjJQ4ijG46OJtqHMd2HlRjg6A6BToLLH3/DBl7S4uYGKQmVGTQqj3jtaY8H+m1ONs5OK+pCztNlx04mEagGP5APmrPgjR2bYJDw+yFDC30Pcxqm71LKFLwocag0q+DovT+c/qwlvSqFa0q2gfaDVS1B1poUd4L/naG6CugCZnDv3t/ptsHgCA5LbRab3C7zhoP0p5WOBzMo0Eh8 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, Aug 02, 2026 at 12:50:03PM -0400, Tal Zussman wrote: > Iterate the writeback batch as folios rather than using > &folios[i]->page. Use ceph_folio_snap_context() for the snap context > check and folio_wait_writeback() instead of wait_on_page_writeback(). > > This removes one call to compound_head() and the last caller of > wait_on_page_writeback(). No functional change. > > Signed-off-by: Tal Zussman Beautiful. Reviewed-by: Matthew Wilcox (Oracle)