Messages in this thread | | | Date | Fri, 02 Aug 2002 15:46:45 +0200 | From | Kasper Dupont <> | Subject | [RFC] Race condition? |
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Is there a race condition in this piece of code from do_fork in linux/kernel/fork.c? I cannot see what prevents two processes from calling this at the same time and both successfully fork even though the user had only one process left.
if (atomic_read(&p->user->processes) >= p->rlim[RLIMIT_NPROC].rlim_cur && !capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE)) goto bad_fork_free;
atomic_inc(&p->user->__count); atomic_inc(&p->user->processes);
-- Kasper Dupont -- der bruger for meget tid på usenet. For sending spam use mailto:razrep@daimi.au.dk or mailto:mcxumhvenwblvtl@skrammel.yaboo.dk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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