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From: Miklos Szeredi <miklos@szeredi.hu>
To: jens.axboe@oracle.com
Cc: miklos@szeredi.hu, max@duempel.org,
	torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [patch 0/3] make splice more generic
Date: Mon, 11 May 2009 17:22:37 +0200	[thread overview]
Message-ID: <E1M3XKv-0001Su-Ds@pomaz-ex.szeredi.hu> (raw)
In-Reply-To: <20090511121247.GZ4694@kernel.dk> (message from Jens Axboe on Mon, 11 May 2009 14:12:47 +0200)

On Mon, 11 May 2009, Jens Axboe wrote:
> I have applied all three, thanks! However, I think we should be able to
> pass in whether or not this is a strict splice or not. Falling back to
> readv/writev is a good thing as it may help get the interface adopted
> more widely, but I can also easily imagine cases where you'd want to
> make sure that splice actually works without copies. It may even just be
> for users to retry with alternative code paths, instead of proceeding
> with the splice. SPLICE_F_MOVE is a soft flag in that it will move if it
> can, but not fail if it can't. Perhaps we should add a flag that does
> pass back an error if we can't just move pages around, SPLICE_F_STRICT
> or something like that.

Okay, seems pretty trivial.  I'll do a patch.

Thanks,
Miklos

  reply	other threads:[~2009-05-11 15:24 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-07 13:37 [patch 0/3] make splice more generic Miklos Szeredi
2009-05-07 13:37 ` [patch 1/3] splice: implement pipe to pipe splicing Miklos Szeredi
2009-05-07 13:37 ` [patch 2/3] splice: implement default splice_read method Miklos Szeredi
2009-05-13  5:35   ` Andrew Morton
2009-05-13  6:37     ` Jens Axboe
2009-05-13  9:01       ` Miklos Szeredi
2009-05-14 17:29         ` Jens Axboe
2009-05-14 17:54           ` Miklos Szeredi
2009-05-14 18:00             ` Jens Axboe
2009-05-18 12:36               ` Miklos Szeredi
2009-05-19  9:38                 ` Jens Axboe
2009-05-07 13:37 ` [patch 3/3] splice: implement default splice_write method Miklos Szeredi
2009-05-07 15:55 ` [patch 0/3] make splice more generic Linus Torvalds
2009-05-11 15:17   ` Miklos Szeredi
2009-05-09 11:36 ` Max Kellermann
2009-05-11 12:12 ` Jens Axboe
2009-05-11 15:22   ` Miklos Szeredi [this message]
2009-05-14 20:27   ` Jamie Lokier
2009-05-15  7:32     ` Jens Axboe

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