Date: Sun, 1 Sep 2002 01:59:56 -0700 (PDT) From: Jonathan Mini <mini@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 16896 for review Message-ID: <200209010859.g818xuUZ037562@freefall.freebsd.org>
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http://people.freebsd.org/~peter/p4db/chv.cgi?CH=16896 Change 16896 by mini@mini_stylus on 2002/09/01 01:59:23 Save UTS context in kse_yield(2) and clear uc_busy, so that other upcall may take place later on. Affected files ... .. //depot/projects/kse/sys/kern/kern_proc.c#80 edit Differences ... ==== //depot/projects/kse/sys/kern/kern_proc.c#80 (text+ko) ==== @@ -279,12 +279,29 @@ int kse_yield(struct thread *td, struct kse_yield_args *uap) { + int error; + ucontext_t uc; + struct kse *ke; + /* Save UTS context. */ + ke = td->td_kse; + if (ke == NULL) + return (EFAULT); + error = copyin(&ke->ke_mailbox->km_context, &uc, sizeof(ucontext_t)); + if (error) + return (error); + thread_getcontext(td, &uc); + uc.uc_busy = 0; + error = copyout(&uc, &ke->ke_mailbox->km_context, sizeof(ucontext_t)); + if (error) + return (error); + + /* Abandon thread. */ PROC_LOCK(td->td_proc); mtx_lock_spin(&sched_lock); thread_exit(); /* NOTREACHED */ - return(0); + return (0); } int kse_wakeup(struct thread *td, struct kse_wakeup_args *uap) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe p4-projects" in the body of the message
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