On Tue, 8 Nov 2005, Alan Cox wrote:

 If a physical page is mapped by two or more virtual addresses, transmitted
 by the zero-copy sockets method, and written to before the transmission
 completes, we need to destroy all of the existing mappings to the page,
 not just the one that we fault on.  Otherwise, the mappings will no longer
 be to the same page and changes made through one of the mappings will not
 be visible through the others.

These kinds of changes could REALLY use regression tests, if possible.

Mike "Silby" Silbersack
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