From: Hugh Dickins <hughd@google.com>
To: NeilBrown <neilb@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>,
Al Viro <viro@zeniv.linux.org.uk>,
David Howells <dhowells@redhat.com>, Chris Mason <clm@fb.com>,
Josef Bacik <jbacik@fb.com>, David Sterba <dsterba@suse.cz>,
Dave Chinner <david@fromorbit.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 3/3] btrfs: set FS_SUPPORTS_SEEK_HOLE flag.
Date: Tue, 21 Apr 2015 03:23:42 -0700 (PDT) [thread overview]
Message-ID: <alpine.LSU.2.11.1504210319440.1535@eggly.anvils> (raw)
In-Reply-To: <20150421084312.GA1088@infradead.org>
On Tue, 21 Apr 2015, Christoph Hellwig wrote:
> On Mon, Apr 20, 2015 at 01:58:35PM +0100, Al Viro wrote:
> > > > Do ext4 and xfs support this, do you know?
> > >
> > > Yes. As do f2fs, ocfs2, gfs2, ceph and NFSv4.2
> >
> > Er... Nominally, gfs2 supports it. By treating all files as "there's a
> > hole starting at EOF". Same as ext2 or even minix...
>
> Yeah remove gfs2 from the list.
But please add tmpfs to the list -
though I doubt you're interested in caching its files.
Hugh
next prev parent reply other threads:[~2015-04-21 10:23 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-20 5:27 [PATCH 0/3] Allow fscache to work on BTRFS NeilBrown
2015-04-20 5:27 ` [PATCH 2/3] fscache/cachefiles: optionally use SEEK_DATA instead of ->bmap NeilBrown
2015-04-20 6:08 ` Christoph Hellwig
2015-04-20 6:27 ` NeilBrown
2015-04-20 9:45 ` Christoph Hellwig
2015-04-21 23:06 ` NeilBrown
2015-04-20 5:27 ` [PATCH 1/3] cachefiles: perform test on s_blocksize when opening cache file NeilBrown
2015-04-20 5:27 ` [PATCH 3/3] btrfs: set FS_SUPPORTS_SEEK_HOLE flag NeilBrown
2015-04-20 19:48 ` Chris Mason
2015-04-20 8:47 ` David Howells
2015-04-20 9:33 ` NeilBrown
2015-04-20 9:46 ` David Howells
2015-04-20 9:48 ` Christoph Hellwig
2015-04-20 12:58 ` Al Viro
2015-04-21 8:43 ` Christoph Hellwig
2015-04-21 10:23 ` Hugh Dickins [this message]
2015-04-27 5:41 ` NeilBrown
2015-04-27 13:43 ` Christoph Hellwig
2015-04-20 11:21 ` [PATCH 2/3] fscache/cachefiles: optionally use SEEK_DATA instead of ->bmap David Howells
2015-04-20 15:59 ` [RFC][PATCH] cachefiles: Make better use of SEEK_DATA/SEEK_HOLE David Howells
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=alpine.LSU.2.11.1504210319440.1535@eggly.anvils \
--to=hughd@google.com \
--cc=clm@fb.com \
--cc=david@fromorbit.com \
--cc=dhowells@redhat.com \
--cc=dsterba@suse.cz \
--cc=hch@infradead.org \
--cc=jbacik@fb.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=neilb@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).