Re: [PATCH -mm] utrace: nommu fixup support utrace

From: Roland McGrath
Date: Tue Mar 06 2007 - 22:42:38 EST


That old ptrace check seems pretty questionable to me. I think what you
want is for the nommu world's get_user_pages/access_process_vm when called
with force=1,write=1 on a read-only MAP_PRIVATE page to do something more
morally similar to the mmu world's COW than it does now.


Thanks,
Roland
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