In thr_exit() and kthread_exit(), only remove thread from
hash if it can directly exit, otherwise let exit1() do it. The change should be in r213950, but for unknown reason, it was lost.
This commit is contained in:
parent
d9962dc588
commit
0d036d55e7
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=214238
@ -34,6 +34,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <sys/rwlock.h>
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#include <sys/signalvar.h>
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#include <sys/sx.h>
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#include <sys/unistd.h>
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@ -315,17 +316,20 @@ kthread_exit(void)
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p = curthread->td_proc;
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tidhash_remove(curthread);
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/* A module may be waiting for us to exit. */
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wakeup(curthread);
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rw_wlock(&tidhash_lock);
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PROC_LOCK(p);
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if (p->p_numthreads == 1) {
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PROC_UNLOCK(p);
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rw_wunlock(&tidhash_lock);
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kproc_exit(0);
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/* NOTREACHED. */
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}
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LIST_REMOVE(curthread, td_hash);
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rw_wunlock(&tidhash_lock);
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PROC_SLOCK(p);
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thread_exit();
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}
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@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/proc.h>
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#include <sys/posix4.h>
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#include <sys/resourcevar.h>
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#include <sys/rwlock.h>
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#include <sys/sched.h>
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#include <sys/sysctl.h>
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#include <sys/smp.h>
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@ -284,23 +285,23 @@ thr_exit(struct thread *td, struct thr_exit_args *uap)
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kern_umtx_wake(td, uap->state, INT_MAX, 0);
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}
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tidhash_remove(td);
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rw_wlock(&tidhash_lock);
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PROC_LOCK(p);
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tdsigcleanup(td);
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PROC_SLOCK(p);
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/*
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* Shutting down last thread in the proc. This will actually
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* call exit() in the trampoline when it returns.
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*/
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if (p->p_numthreads != 1) {
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LIST_REMOVE(td, td_hash);
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rw_wunlock(&tidhash_lock);
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tdsigcleanup(td);
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PROC_SLOCK(p);
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thread_stopped(p);
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thread_exit();
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/* NOTREACHED */
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}
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PROC_SUNLOCK(p);
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PROC_UNLOCK(p);
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rw_wunlock(&tidhash_lock);
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return (0);
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}
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