From: Jens Axboe <jens.axboe@oracle.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Gabriel C <nix.or.die@googlemail.com>,
linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: On current git head webservers stopped working
Date: Fri, 13 Jul 2007 19:39:49 +0200 [thread overview]
Message-ID: <20070713173949.GW5328@kernel.dk> (raw)
In-Reply-To: <alpine.LFD.0.999.0707131025550.20061@woody.linux-foundation.org>
On Fri, Jul 13 2007, Linus Torvalds wrote:
>
>
> On Fri, 13 Jul 2007, Jens Axboe wrote:
> >
> > Does this work?
>
> Ok, so it apparently works, but:
>
> > diff --git a/fs/splice.c b/fs/splice.c
> > index ed2ce99..92646aa 100644
> > --- a/fs/splice.c
> > +++ b/fs/splice.c
> > @@ -491,7 +491,7 @@ ssize_t generic_file_splice_read(struct file *in, loff_t *ppos,
> >
> > ret = 0;
> > spliced = 0;
> > - while (len) {
> > + while (len && !spliced) {
> > ret = __generic_file_splice_read(in, ppos, pipe, len, flags);
>
> This hunk basically make sthe whole "while" loop pointless. You'll never
> go through it more than once.
>
> So at that point, maybe the loop should be removed entirely? Or maybe this
> part of the patch is wrong, and the fix was in the _other_ parts?
It'll likely work without that hunk, and you are right - the loop
should just go now. I'll update that piece in a sub sequent patch!
--
Jens Axboe
next prev parent reply other threads:[~2007-07-13 17:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-13 9:28 On current git head webservers stopped working Gabriel C
2007-07-13 9:34 ` Jens Axboe
2007-07-13 9:49 ` Gabriel C
2007-07-13 10:00 ` Jens Axboe
2007-07-13 10:05 ` Christoph Hellwig
2007-07-13 11:00 ` Jens Axboe
2007-07-13 10:09 ` Gabriel C
2007-07-13 11:11 ` Jens Axboe
2007-07-13 13:52 ` walt
2007-07-13 17:27 ` Linus Torvalds
2007-07-13 17:39 ` Jens Axboe [this message]
2007-07-13 18:17 ` Jens Axboe
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