Re: [PATCH] fs/splice: Pull buf->ops->confirm() from splice_from_pipe actors

From: Jens Axboe
Date: Mon Dec 13 2010 - 08:38:28 EST


On 2010-12-12 22:23, MichaÅ MirosÅaw wrote:
> This patch pulls calls to buf->ops->confirm() from all actors passed
> (also indirectly) to splice_from_pipe_feed().

Why? The point of ->confirm() is to ensure that the contents are
stable, otherwise the pages in the pipe could merely be in flight.
It's needed if you need to actually look at the data, rather than just
reference it.

--
Jens Axboe

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