Re: [Fwd: Weird ia64 problem]

From: Tony Luck <>
Date: 2005-10-08 12:40:54
> I'm thinking it should check if (PIPE_SIZE - buf->len) > PIPE_BUF, and
> set do_wakeup.  The code could be #defined out if PIPE_SIZE == PIPE_BUF,
> so the change reduces to a no-op on other archs.
> Does that sound right?  I'm going to work on a patch here.

Roughly (without looking back as fs/pipe.c).  When you have your
patch, you will need to restart this discussion on the linux-kernel
mailing list (since you'll be touching a generic file).  Some random
grepping for PAGE_SIZE (well PAGE_SHIFT) shows that some
other artchitectures have some support for page size > PIPE_BUF.
So there should be some interest in this fix.

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Received on Sat Oct 08 12:41:35 2005

This archive was generated by hypermail 2.1.8 : 2005-10-08 12:41:43 EST