Re: Race between vmtruncate and mapped areas?

Dave McCracken
2003-05-14T18:24:25Z

--On Wednesday, May 14, 2003 11:17:48 -0700 Andrew Morton <akpm@digeo.com>
wrote:

> I think it might be sufficient to re-check the page against i_size
> after IO completion in filemap_nopage().

It would definitely make the window a lot smaller, though it won't quite
close it. To be entirely safe we'd need to recheck after we've retaken
page_table_lock.

Dave

======================================================================
Dave McCracken IBM Linux Base Kernel Team 1-512-838-3059
dmccr@us.ibm.com T/L 678-3059