Re: [RFC PATCH v2 37/48] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage()

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To: David Howells <dhowells@xxxxxxxxxx>
Subject: Re: [RFC PATCH v2 37/48] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage()
From: Xiubo Li <xiubli@xxxxxxxxxx>
Date: Fri, 31 Mar 2023 09:05:01 -0400
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, Paolo Abeni <pabeni@xxxxxxxxxx>, Al Viro <viro@xxxxxxxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Jeff Layton <jlayton@xxxxxxxxxx>, Christian Brauner <brauner@xxxxxxxxxx>, Chuck Lever III <chuck.lever@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, netdev@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, Ilya Dryomov <idryomov@xxxxxxxxx>, ceph-devel@xxxxxxxxxxxxxxx
In-reply-to: <709552.1680158901@warthog.procyon.org.uk>
References: <7f7947d6-2a03-688b-dc5e-3887553f0106@redhat.com> <20230329141354.516864-1-dhowells@redhat.com> <20230329141354.516864-38-dhowells@redhat.com> <709552.1680158901@warthog.procyon.org.uk>
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On 3/30/23 02:48, David Howells wrote:

Xiubo Li <xiubli@xxxxxxxxxx> wrote:

BTW, will this two patch depend on the others in this patch series ?

Yes.  You'll need patches that affect TCP at least so that TCP supports
MSG_SPLICE_PAGES, so 04-08 and perhaps 09.  It's also on top of the patches
that remove ITER_PIPE on my iov-extract branch, but I don't think that should
affect you.


Okay, I will check that.

Thanks.

David

References:
- Re: [RFC PATCH v2 37/48] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage()
  - From: Xiubo Li
- [RFC PATCH v2 00/48] splice, net: Replace sendpage with sendmsg(MSG_SPLICE_PAGES)
  - From: David Howells
- [RFC PATCH v2 37/48] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage()
  - From: David Howells
- Re: [RFC PATCH v2 37/48] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage()
  - From: David Howells

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