Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [RFC][PATCH 0/4] kernel-based checkpoint restart | Date | Fri, 8 Aug 2008 11:25:12 +0200 |
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On Friday 08 August 2008, Dave Hansen wrote: > These patches are from Oren Laaden. I've refactored them > a bit to make them a wee bit more reviewable. I think this > separates out the per-arch bits pretty well. It should also > be at least build-bisetable.
Cool stuff
> ============================== ckpt.c ================================ > > #define _GNU_SOURCE /* or _BSD_SOURCE or _SVID_SOURCE */ > > #include <stdio.h> > #include <stdlib.h> > #include <errno.h> > #include <fcntl.h> > #include <unistd.h> > #include <asm/unistd_32.h> > #include <sys/syscall.h>
Note that asm/unistd_32.h is not portable, you should use asm/unistd.h in the example.
> pid_t pid = getpid(); > int ret; > > ret = syscall(__NR_checkpoint, pid, STDOUT_FILENO, 0);
Interface-wise, I would consider checkpointing yourself signficantly different from checkpointing some other thread. If checkpointing yourself is the common case, it probably makes sense to allow passing of pid=0 for this.
Arnd <><
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