lkml.org 
[lkml]   [2007]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: msync(2) bug(?), returns AOP_WRITEPAGE_ACTIVATE to userland
Hi Hugh,

On 10/12/07, Hugh Dickins <hugh@veritas.com> wrote:
> But I keep suspecting that the answer might be the patch below (which
> rather follows what drivers/block/rd.c is doing). I'm especially
> worried that, rather than just AOP_WRITEPAGE_ACTIVATE being returned
> to userspace, bad enough in itself, you might be liable to hit that
> BUG_ON(page_mapped(page)). shmem_writepage does not expect to be
> called by anyone outside mm/vmscan.c, but unionfs can now get to it?

Doesn't msync(2) get to it via mm/page-writeback.c:write_cache_pages()
without unionfs even?

Pekka
-
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: 2007-10-12 23:53    [W:0.097 / U:0.636 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site