From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: "Darrick J. Wong" <darrick.wong-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org,
torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org,
tytso-3s7WtUTddSA@public.gmane.org,
martin.petersen-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
david-FqsqvQoI3Ljby3iVrkZq2A@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
shane.seymour-ZPxbGqLxI0U@public.gmane.org,
linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
jlayton-vpEMnDpepFuMZCB2o+C8xQ@public.gmane.org,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org
Subject: Re: [PATCH 3/3] block: implement (some of) fallocate for block devices
Date: Mon, 21 Mar 2016 11:17:26 -0700 [thread overview]
Message-ID: <20160321181726.GA10892@infradead.org> (raw)
In-Reply-To: <20160321175235.GA5812-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
On Mon, Mar 21, 2016 at 10:52:35AM -0700, Darrick J. Wong wrote:
> > I don't really understand the comment. But I think you'd be much
>
> I don't know of a block device primitive that corresponds to the "default"
> mode of fallocate, as documented in the manpage (i.e. mode == 0). I agree
> that the whole thing could be simplified in the manner you point out below.
SCSI allows 'anchoring' blocks, which is pretty similar to a normal
fallocate, but we don't support anchoring blocks in Linux yet.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>,
axboe@kernel.dk, torvalds@linux-foundation.org,
bfields@fieldses.org, tytso@mit.edu, martin.petersen@oracle.com,
linux-api@vger.kernel.org, david@fromorbit.com,
linux-kernel@vger.kernel.org, shane.seymour@hpe.com,
linux-fsdevel@vger.kernel.org, jlayton@poochiereds.net,
akpm@linux-foundation.org
Subject: Re: [PATCH 3/3] block: implement (some of) fallocate for block devices
Date: Mon, 21 Mar 2016 11:17:26 -0700 [thread overview]
Message-ID: <20160321181726.GA10892@infradead.org> (raw)
In-Reply-To: <20160321175235.GA5812@birch.djwong.org>
On Mon, Mar 21, 2016 at 10:52:35AM -0700, Darrick J. Wong wrote:
> > I don't really understand the comment. But I think you'd be much
>
> I don't know of a block device primitive that corresponds to the "default"
> mode of fallocate, as documented in the manpage (i.e. mode == 0). I agree
> that the whole thing could be simplified in the manner you point out below.
SCSI allows 'anchoring' blocks, which is pretty similar to a normal
fallocate, but we don't support anchoring blocks in Linux yet.
next prev parent reply other threads:[~2016-03-21 18:17 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-15 19:42 [PATCH v7 0/3] fallocate for block devices to provide zero-out Darrick J. Wong
2016-03-15 19:42 ` [PATCH 2/3] block: require write_same and discard requests align to logical block size Darrick J. Wong
[not found] ` <20160315194221.30093.70506.stgit-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
2016-03-15 19:42 ` [PATCH 1/3] block: invalidate the page cache when issuing BLKZEROOUT Darrick J. Wong
2016-03-15 19:42 ` Darrick J. Wong
2016-03-15 19:42 ` [PATCH 3/3] block: implement (some of) fallocate for block devices Darrick J. Wong
2016-03-15 19:42 ` Darrick J. Wong
[not found] ` <20160315194244.30093.6483.stgit-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
2016-03-21 15:38 ` Christoph Hellwig
2016-03-21 15:38 ` Christoph Hellwig
[not found] ` <20160321153827.GA27230-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2016-03-21 17:52 ` Darrick J. Wong
2016-03-21 17:52 ` Darrick J. Wong
[not found] ` <20160321175235.GA5812-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
2016-03-21 18:17 ` Christoph Hellwig [this message]
2016-03-21 18:17 ` Christoph Hellwig
[not found] ` <20160321181726.GA10892-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2016-03-21 18:21 ` Martin K. Petersen
2016-03-21 18:21 ` Martin K. Petersen
2016-03-21 18:52 ` Mike Snitzer
2016-03-21 18:52 ` Mike Snitzer
2016-03-21 19:11 ` Darrick J. Wong
2016-03-21 19:11 ` Darrick J. Wong
2016-03-21 19:22 ` Mike Snitzer
[not found] ` <20160321192229.GA17220-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-03-21 20:59 ` Brian Foster
2016-03-21 20:59 ` Brian Foster
-- strict thread matches above, loose matches on Subject: below --
2016-09-29 21:16 [PATCH v11 0/3] " Darrick J. Wong
2016-09-29 21:16 ` [PATCH 3/3] block: implement (some of) " Darrick J. Wong
2016-09-29 21:16 ` Darrick J. Wong
2016-09-29 0:39 [PATCH v10 0/3] " Darrick J. Wong
2016-09-29 0:39 ` [PATCH 3/3] block: implement (some of) " Darrick J. Wong
2016-09-29 0:39 ` Darrick J. Wong
2016-09-29 1:42 ` Bart Van Assche
2016-09-29 1:42 ` Bart Van Assche
2016-09-29 1:42 ` Bart Van Assche
2016-09-29 2:09 ` Darrick J. Wong
2016-09-29 2:09 ` Darrick J. Wong
2016-09-29 5:57 ` Hannes Reinecke
2016-09-29 5:57 ` Hannes Reinecke
2016-08-26 0:02 [PATCH v10 0/3] " Darrick J. Wong
2016-08-26 0:02 ` [PATCH 3/3] block: implement (some of) " Darrick J. Wong
2016-08-26 0:02 ` Darrick J. Wong
2016-06-17 1:17 [PATCH v9 0/3] " Darrick J. Wong
[not found] ` <146612624734.12764.4316680863289411106.stgit-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
2016-06-17 1:17 ` [PATCH 3/3] block: implement (some of) " Darrick J. Wong
2016-06-17 1:17 ` Darrick J. Wong
2016-06-17 1:17 ` Darrick J. Wong
2016-04-13 4:01 [RFC DONOTMERGE v8 0/3] " Darrick J. Wong
[not found] ` <20160413040121.10562.98998.stgit-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
2016-04-13 4:01 ` [PATCH 3/3] block: implement (some of) " Darrick J. Wong
2016-04-13 4:01 ` Darrick J. Wong
2016-04-13 4:01 ` Darrick J. Wong
2016-03-05 0:55 [PATCH v6 0/3] fallocate for block devices to provide zero-out Darrick J. Wong
2016-03-05 0:56 ` [PATCH 3/3] block: implement (some of) fallocate for block devices Darrick J. Wong
[not found] ` <20160305005617.29738.85316.stgit-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
2016-03-05 3:06 ` Linus Torvalds
2016-03-05 3:06 ` Linus Torvalds
[not found] ` <CA+55aFyY+oDoK8C6C++PG=N+vtY-r1Y6fYO_3skDTzkP_SXC-A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-05 20:57 ` Christoph Hellwig
2016-03-05 20:57 ` Christoph Hellwig
2016-03-05 3:13 ` Linus Torvalds
2016-03-05 3:13 ` Linus Torvalds
[not found] ` <CA+55aFzJW70YApg8ra-c79E-j1ujOXbh=26k2dvyYX+qZuu_8A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-05 20:58 ` Christoph Hellwig
2016-03-05 20:58 ` Christoph Hellwig
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