Re: [PATCH 4/8] ceph: drop usage of page_index

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To: Xiubo Li <xiubli@xxxxxxxxxx>
Subject: Re: [PATCH 4/8] ceph: drop usage of page_index
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Thu, 18 Apr 2024 02:30:22 +0100
Cc: Kairui Song <kasong@xxxxxxxxxxx>, linux-mm@xxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "Huang, Ying" <ying.huang@xxxxxxxxx>, Chris Li <chrisl@xxxxxxxxxx>, Barry Song <v-songbaohua@xxxxxxxx>, Ryan Roberts <ryan.roberts@xxxxxxx>, Neil Brown <neilb@xxxxxxx>, Minchan Kim <minchan@xxxxxxxxxx>, Hugh Dickins <hughd@xxxxxxxxxx>, David Hildenbrand <david@xxxxxxxxxx>, Yosry Ahmed <yosryahmed@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Ilya Dryomov <idryomov@xxxxxxxxx>, Jeff Layton <jlayton@xxxxxxxxxx>, ceph-devel@xxxxxxxxxxxxxxx
In-reply-to: <fc89e5b9-cfc4-4303-b3ff-81f00a891488@redhat.com>

On Thu, Apr 18, 2024 at 08:28:22AM +0800, Xiubo Li wrote:
> Thanks for you patch and will it be doable to switch to folio_index()
> instead ?

No.  Just use folio->index.  You only need folio_index() if the folio
might belong to the swapcache instead of a file.

Follow-Ups:
- Re: [PATCH 4/8] ceph: drop usage of page_index
  - From: Xiubo Li

References:
- [PATCH 0/8] mm/swap: optimize swap cache search space
  - From: Kairui Song
- [PATCH 4/8] ceph: drop usage of page_index
  - From: Kairui Song
- Re: [PATCH 4/8] ceph: drop usage of page_index
  - From: Xiubo Li

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