lkml.org 
[lkml]   [2004]   [Jun]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: deadlocks caused by ext3/reiser dirty_inode calls during do_mmap_pgoff
From
Date
On Tue, 2004-06-22 at 14:57, Andrew Morton wrote:
> Chris Mason <mason@suse.com> wrote:
> >
> > Hmmm, reiserfs_file_write does fault_in_pages_readable after the
> > transaction is started.
>
> That nests down_read(mmap_sem) inside transaction start, vastly increasing
> the deadlock probability.

Yup

>
> > I can at least make the window smaller for now
> > by moving that before the transaction is started.
>
> Much smaller.
>
> We need to decide what the ranking is and stick with it. I think that's
> "transaction start nests inside mmap_sem", agree?

Agreed.

-chris

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:04    [W:0.091 / U:2.960 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site