Re: Properly implement flush_dcache_page in 2.4? (Or is it

[Hugh Dickins]

On Sat, 31 May 2003, Russell King wrote:
> 
> I don't see a reason to worry about privately mapped pages on the i_mmap
> list since they are private, and therefore shouldn't be updated with
> modifications to other mappings, which I'd have thought would include
> writes to the file (although I'm not so sure atm.)

Be not so sure.  vmas on the private i_mmap list can still contain
shared pages, which should see writes to the file; but of course their
already-COWed private pages won't see subsequent writes to the file.

Hugh