From: Jens Axboe <jens.axboe@oracle.com>
To: Dmitri Monakhov <dmonakhov@openvz.org>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] Add block device speciffic splice write method
Date: Mon, 20 Oct 2008 19:49:32 +0200 [thread overview]
Message-ID: <20081020174931.GH19428@kernel.dk> (raw)
In-Reply-To: <1224424858-3927-1-git-send-email-dmonakhov@openvz.org>
On Sun, Oct 19 2008, Dmitri Monakhov wrote:
> Block device write procedure is different from regular file:
> - Actual write performed without i_mutex.
> - It has no metadata, so generic_osync_inode(O_SYNCMETEDATA) can not livelock.
> - We do not have to worry about S_ISUID/S_ISGID bits.
I already did an O_DIRECT part of block device splicing [1], I'll fold
this into the splice branch and double check with some testing.
[1] http://git.kernel.dk/?p=linux-2.6-block.git;a=commitdiff;h=fbb724a0484aba938024d41ca1dd86337d2550c9;hp=08c7910b275a4c580ad646ae8654439c8dfae4c5
--
Jens Axboe
next prev parent reply other threads:[~2008-10-20 17:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-19 14:00 [PATCH] Add block device speciffic splice write method Dmitri Monakhov
2008-10-20 17:49 ` Jens Axboe [this message]
2008-10-20 18:11 ` Jens Axboe
2008-10-20 18:42 ` Dmitri Monakhov
2008-10-23 5:39 ` Andrew Morton
2008-10-23 6:29 ` Jens Axboe
2008-10-23 6:41 ` Andrew Morton
2008-10-23 6:51 ` Jens Axboe
2008-10-23 7:03 ` Andrew Morton
2008-10-23 7:16 ` Jens Axboe
2008-10-23 8:41 ` Dmitri Monakhov
2008-10-20 18:29 ` Dmitri Monakhov
2008-10-20 18:33 ` Jens Axboe
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