On Fri, 2006-08-04 at 02:04 -0700, Andrew Morton wrote:
> On Fri, 4 Aug 2006 09:50:13 +0100
> Christoph Hellwig <[email protected]> wrote:
>
> > On Thu, Aug 03, 2006 at 10:39:42PM -0700, Greg KH wrote:
> > > -stable review patch. If anyone has any objections, please let us know.
> >
> > This is a feature. Definitly not -stable material.
>
> Apparently that regular IPI storm is causing the SGI machines some
> significant problems.
a tiny performance drop :) If that meets the stable policy.. open
question :)
> It's not the biggest problem we've ever had, but if this patch is wrong,
> the pagecache/buffer_head layer is utterly busted. And it isn't.
are you sure?
+ struct address_space *mapping = bdev->bd_inode->i_mapping;
+
+ if (mapping->nrpages == 0)
+ return;
+
invalidate_bh_lrus();
what happens if a bdev used to have pagecache and at some point stops
having that due to page reclaim... will that page reclaim call
invalidate_bh_lrus() ? If not, who will ? If the answer is "nobody", is
that really the right answer?
--
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
