Messages in this thread | | | Date | Mon, 25 Apr 2005 14:17:53 +0100 | From | Christoph Hellwig <> | Subject | Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation |
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On Mon, Apr 25, 2005 at 06:15:10AM -0700, Roland Dreier wrote: > Does it seem reasonable to add a new system call to let userspace mark > memory it doesn't want copied into forked processes? Something like > > long sys_mark_nocopy(unsigned long addr, size_t len, int mark) > > which would set VM_DONTCOPY if mark != 0, and clear it if mark == 0. > A better name would be gratefully accepted...
add a new MAP_DONTCOPY flag and accept it in mmap and mprotect?
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