Re: Boot failure with ext2 and initrds

[Andrew Morton]

On Thu, 16 Nov 2006 01:48:09 -0800
Andrew Morton <akpm@xxxxxxxx> wrote:

> On Thu, 16 Nov 2006 12:37:17 +0300
> Alex Tomas <alex@xxxxxxxxxxxxx> wrote:
> 
> > >>>>> Andrew Morton (AM) writes:
> > 
> >  AM> What lock protects the fields in struct ext[234]_reserve_window from being
> >  AM> concurrently modified by two CPUs?  None, it seems.  Ditto
> >  AM> ext[234]_reserve_window_node.  i_mutex will cover it for write(), but not
> >  AM> for pageout over a file hole.  If we end up with a zero- or negative-sized
> >  AM> window then odd things might happen.
> > 
> > truncate_mutex?
> > 
> 
> yes.  hmm.

by which I mean "ext2 doesn't have a truncate_mutex".
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/