Messages in this thread Patch in this message | | | Date | Sun, 9 Feb 2003 17:27:09 -0800 | From | Roland McGrath <> | Subject | Re: heavy handed exit() in latest BK |
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--- /home/roland/redhat/linux-2.5.59-1.1007/fs/exec.c.~1~ Fri Feb 7 20:04:27 2003 +++ /home/roland/redhat/linux-2.5.59-1.1007/fs/exec.c Sun Feb 9 17:25:31 2003 @@ -601,9 +601,12 @@ static inline int de_thread(struct task_ if (thread_group_empty(current)) goto no_thread_group; + /* - * Kill all other threads in the thread group: + * Kill all other threads in the thread group. + * We must hold tasklist_lock to call zap_other_threads. */ + read_lock(&tasklist_lock); spin_lock_irq(lock); if (oldsig->group_exit) { /* @@ -611,6 +614,7 @@ static inline int de_thread(struct task_ * return so that the signal is processed. */ spin_unlock_irq(lock); + read_unlock(&tasklist_lock); kmem_cache_free(sighand_cachep, newsighand); if (newsig) kmem_cache_free(signal_cachep, newsig); @@ -618,6 +622,7 @@ static inline int de_thread(struct task_ } oldsig->group_exit = 1; zap_other_threads(current); + read_unlock(&tasklist_lock); /* * Account for the thread group leader hanging around: - 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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