Re: [PATCH v3 59/59] netfs: Eliminate PG_fscache by setting folio->private and marking dirty

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To: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Subject: Re: [PATCH v3 59/59] netfs: Eliminate PG_fscache by setting folio->private and marking dirty
From: David Howells <dhowells@xxxxxxxxxx>
Date: Thu, 07 Dec 2023 21:57:53 +0000
Cc: dhowells@xxxxxxxxxx, Jeff Layton <jlayton@xxxxxxxxxx>, Steve French <smfrench@xxxxxxxxx>, Marc Dionne <marc.dionne@xxxxxxxxxxxx>, Paulo Alcantara <pc@xxxxxxxxxxxxx>, Shyam Prasad N <sprasad@xxxxxxxxxxxxx>, Tom Talpey <tom@xxxxxxxxxx>, Dominique Martinet <asmadeus@xxxxxxxxxxxxx>, Eric Van Hensbergen <ericvh@xxxxxxxxxx>, Ilya Dryomov <idryomov@xxxxxxxxx>, Christian Brauner <christian@xxxxxxxxxx>, linux-cachefs@xxxxxxxxxx, linux-afs@xxxxxxxxxxxxxxxxxxx, linux-cifs@xxxxxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, ceph-devel@xxxxxxxxxxxxxxx, v9fs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <ZXI7aGHkxZyiytXg@casper.infradead.org>
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References: <ZXI7aGHkxZyiytXg@casper.infradead.org> <20231207212206.1379128-1-dhowells@redhat.com> <20231207212206.1379128-60-dhowells@redhat.com>

Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:

> On Thu, Dec 07, 2023 at 09:22:06PM +0000, David Howells wrote:
> > With this, PG_fscache is no longer required.
> 
> ... for filesystems that use netfslib, right?  ie we can't delete
> folio_wait_private_2_killable() and friends because nfs still uses it?

Yeah.  Though I have my eye on NFS too ;-)

David

References:
- Re: [PATCH v3 59/59] netfs: Eliminate PG_fscache by setting folio->private and marking dirty
  - From: Matthew Wilcox
- [PATCH v3 00/59] netfs, afs, 9p, cifs: Delegate high-level I/O to netfslib
  - From: David Howells
- [PATCH v3 59/59] netfs: Eliminate PG_fscache by setting folio->private and marking dirty
  - From: David Howells

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