From: Christoph Hellwig <hch@lst.de>
To: Amir Goldstein <amir73il@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>,
Jeff Layton <jlayton@kernel.org>,
Josef Bacik <josef@toxicpanda.com>,
Christoph Hellwig <hch@lst.de>, Jan Kara <jack@suse.cz>,
David Howells <dhowells@redhat.com>, Jens Axboe <axboe@kernel.dk>,
Miklos Szeredi <miklos@szeredi.hu>,
Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v2 1/3] fs: fork splice_file_range() from do_splice_direct()
Date: Mon, 4 Dec 2023 09:38:49 +0100 [thread overview]
Message-ID: <20231204083849.GC32438@lst.de> (raw)
In-Reply-To: <20231204083733.GA32438@lst.de>
On Mon, Dec 04, 2023 at 09:37:33AM +0100, Christoph Hellwig wrote:
> > put_rd_wr_caps(src_ci, src_got, dst_ci, dst_got);
> > - ret = do_splice_direct(src_file, &src_off, dst_file,
> > - &dst_off, src_objlen, flags);
> > + ret = splice_file_range(src_file, &src_off, dst_file, &dst_off,
> > + src_objlen);
>
> Shouldb't ceph be switched to use generic_copy_file_range?
> That does the capping of the size which we want, and doesn't update
> the file offsets, which would require recalculation in the ceph code.
>
> But this could avoid another exported API as splice_file_range could
> simply be folded into generic_copy_file_range which should reduce
> confusion. And splice really is a mess for so many different layers
> of the onion being exposed. I've been wanting to reduce some of that
> for a while but haven't found a really nice way yet.
(and generic_copy_file_range really should be renamed to
splice_copy_file_range and moved to splice.c)
next prev parent reply other threads:[~2023-12-04 8:38 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-30 14:16 [PATCH v2 0/3] Avert possible deadlock with splice() and fanotify Amir Goldstein
2023-11-30 14:16 ` [PATCH v2 1/3] fs: fork splice_file_range() from do_splice_direct() Amir Goldstein
2023-11-30 16:27 ` Jeff Layton
2023-12-04 8:37 ` Christoph Hellwig
2023-12-04 8:38 ` Christoph Hellwig [this message]
2023-12-04 13:29 ` Amir Goldstein
2023-12-04 14:07 ` Christoph Hellwig
2023-12-04 14:29 ` Amir Goldstein
2023-12-04 17:16 ` Jan Kara
2023-12-04 18:53 ` Amir Goldstein
2023-11-30 14:16 ` [PATCH v2 2/3] fs: move file_start_write() into direct_splice_actor() Amir Goldstein
2023-12-04 8:38 ` Christoph Hellwig
2023-11-30 14:16 ` [PATCH v2 3/3] fs: use do_splice_direct() for nfsd/ksmbd server-side-copy Amir Goldstein
2023-11-30 16:49 ` Jan Kara
2023-12-04 8:39 ` Christoph Hellwig
2023-12-04 13:19 ` Amir Goldstein
2023-12-04 14:02 ` Christoph Hellwig
2023-12-05 0:16 ` [PATCH] fs: read_write: make default in vfs_copy_file_range() reachable Bert Karwatzki
2023-12-05 3:45 ` Amir Goldstein
2023-12-05 5:01 ` Amir Goldstein
2023-12-05 9:50 ` Bert Karwatzki
2023-11-30 16:32 ` [PATCH v2 0/3] Avert possible deadlock with splice() and fanotify Jeff Layton
2023-12-01 10:40 ` Christian Brauner
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