linux-kernel - Re: [PATCH 09/26] mm: Provide a means of invalidation without using launder

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Message-ID: <28263.1713344568@warthog.procyon.org.uk>
Date: Wed, 17 Apr 2024 10:02:48 +0100
From: David Howells <dhowells@...hat.com>
To: Jeff Layton <jlayton@...nel.org>
Cc: David Howells <dhowells@...hat.com>,
    Christian Brauner <christian@...uner.io>,
    Gao Xiang <hsiangkao@...ux.alibaba.com>,
    Dominique Martinet <asmadeus@...ewreck.org>,
    Matthew Wilcox <willy@...radead.org>,
    Steve French <smfrench@...il.com>,
    Marc Dionne <marc.dionne@...istor.com>,
    Paulo Alcantara <pc@...guebit.com>,
    Shyam Prasad N <sprasad@...rosoft.com>, Tom Talpey <tom@...pey.com>,
    Eric Van Hensbergen <ericvh@...nel.org>,
    Ilya Dryomov <idryomov@...il.com>, netfs@...ts.linux.dev,
    linux-cachefs@...hat.com, linux-afs@...ts.infradead.org,
    linux-cifs@...r.kernel.org, linux-nfs@...r.kernel.org,
    ceph-devel@...r.kernel.org, v9fs@...ts.linux.dev,
    linux-erofs@...ts.ozlabs.org, linux-fsdevel@...r.kernel.org,
    linux-mm@...ck.org, netdev@...r.kernel.org,
    linux-kernel@...r.kernel.org, Miklos Szeredi <miklos@...redi.hu>,
    Trond Myklebust <trond.myklebust@...merspace.com>,
    Christoph Hellwig <hch@....de>,
    Andrew Morton <akpm@...ux-foundation.org>,
    Alexander Viro <viro@...iv.linux.org.uk>,
    Christian Brauner <brauner@...nel.org>, devel@...ts.orangefs.org
Subject: Re: [PATCH 09/26] mm: Provide a means of invalidation without using launder_folio

Jeff Layton <jlayton@...nel.org> wrote:

> I'd have liked to have seen the first caller of this function too.

Looking again at my code, I also need to make netfs_unbuffered_write_iter()
use this function too.  I missed it before because that wasn't calling
invalidate_inode_pages2_range() directly, but rather going through
kiocb_invalidate_pages().

So I'll add those changes into this patch to give you a first caller.  I also
then need to make filemap_invalidate_inode() take a byte range.

David