--On Tuesday, May 13, 2003 16:20:38 -0700 William Lee Irwin III
<wli@holomorphy.com> wrote:
> The mmap_sem works because then ->i_size can't be sampled by
> filemap_nopage() before the pagetable wiping operation starts.
So why isn't that the right way to do it? Waiting for mmap_sem guarantees
we won't catch a page fault in flight, which is the cause of the problem in
the first place.
Dave
======================================================================
Dave McCracken IBM Linux Base Kernel Team 1-512-838-3059
dmccr@us.ibm.com T/L 678-3059
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