From: Amir Goldstein <amir73il@gmail.com>
To: Goldwyn Rodrigues <rgoldwyn@suse.de>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Christoph Hellwig <hch@lst.de>,
overlayfs <linux-unionfs@vger.kernel.org>,
Dave Chinner <david@fromorbit.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Anna Schumaker <Anna.Schumaker@netapp.com>
Subject: Re: [PATCH v2 0/4] Enable holes in copy_file_range()
Date: Thu, 10 May 2018 07:47:42 +0300 [thread overview]
Message-ID: <CAOQ4uxiDi9fFGhXxWH-pvDDP-8rk9cmwedLcsid3L51KyP8fbA@mail.gmail.com> (raw)
In-Reply-To: <20180510015820.17700-1-rgoldwyn@suse.de>
On Thu, May 10, 2018 at 4:58 AM, Goldwyn Rodrigues <rgoldwyn@suse.de> wrote:
> If copy_file_range performs a copy using splice, it converts holes
> to zeros. This effort primarily changes this behavior to create
> holes when it is possible.
>
> Even if copy_file_range() or clone_file_range() does not work for different
> mounted filesystems, We should be able to splice files if they do not
> belong the same super_block.
>
> Changes since v1:
> - Fixed bug when hole/data offset is farther than len
Please specify how you tested this work.
Did you run the xfstests generic/copy tests that Anna wrote?
If the tests caught your bugs - good, if they didn't, please
write more tests to cover the issues you found.
One thing I do not see in the existing tests is coverage for the
trivial case of "only holes" (i.e. touch x; truncate -s 10 x).
Thanks,
Amir.
next prev parent reply other threads:[~2018-05-10 4:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-10 1:58 [PATCH v2 0/4] Enable holes in copy_file_range() Goldwyn Rodrigues
2018-05-10 1:58 ` [PATCH 1/4] copy_file_range: refactor vfs_copy_file_range Goldwyn Rodrigues
2018-05-10 1:58 ` [PATCH 2/4] copy_file_range: Perform splice if in/out SB are not same Goldwyn Rodrigues
2018-05-10 1:58 ` [PATCH 3/4] copy_file_range: splice with holes Goldwyn Rodrigues
2018-05-10 4:42 ` Amir Goldstein
2018-05-10 5:49 ` Amir Goldstein
2018-05-10 1:58 ` [PATCH 4/4] ovl: Use do_copy_file_range() in copy_up_data() Goldwyn Rodrigues
2018-05-10 4:47 ` Amir Goldstein [this message]
2018-05-10 10:45 ` [PATCH v2 0/4] Enable holes in copy_file_range() Anna Schumaker
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAOQ4uxiDi9fFGhXxWH-pvDDP-8rk9cmwedLcsid3L51KyP8fbA@mail.gmail.com \
--to=amir73il@gmail.com \
--cc=Anna.Schumaker@netapp.com \
--cc=david@fromorbit.com \
--cc=hch@lst.de \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-unionfs@vger.kernel.org \
--cc=rgoldwyn@suse.de \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).