Messages in this thread | | | Date | Sun, 28 Mar 2004 19:48:27 -0800 (PST) | From | Davide Libenzi <> | Subject | Re: Kernel support for peer-to-peer protection models... |
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On Sun, 28 Mar 2004, Ivan Godard wrote:
> ----- Original Message ----- > From: "Paul Mackerras" <paulus@samba.org> > To: "Ivan Godard" <igodard@pacbell.net> > Cc: "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org> > Sent: Sunday, March 28, 2004 4:17 PM > Subject: Re: Kernel support for peer-to-peer protection models... > > > > Ivan Godard writes: > > > > > 3) flat, unified virtual addresses (64 bit) so that pointers, including > > > inter-space pointers, have the same representation in all spaces > > > > How are you going to implement fork() ? > > The usual COW using the page tables. The child keeps the same code space but > gets a new data space. I expect that specialized versions of fork will give > explicit control over which space the child gets, but in comman usage no one > cases just as no one cares which PID it gets.
Uh?
int myexec(char const *cmd) {
if (!fork()) { exit(exec(cmd)); } ... }
- Davide
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