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Code Issues Releases Activity

thread_signal_add now is called with ps_mtx held, unlock it before

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calling copyin.
This commit is contained in:
David Xu 2003-06-06 02:17:38 +00:00
parent 8f16d45326
commit b0bd5f38a6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=115884
2 changed files with 10 additions and 6 deletions
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8
sys/kern/kern_kse.c
View File

@ -1397,11 +1397,12 @@ thread_signal_add(struct thread *td, int sig)
sigset_t ss;
int error;
PROC_LOCK_ASSERT(td->td_proc, MA_OWNED);
p = td->td_proc;
PROC_LOCK_ASSERT(p, MA_OWNED);
mtx_assert(&p->p_sigacts->ps_mtx, MA_OWNED);
td = curthread;
ku = td->td_upcall;
p = td->td_proc;
mtx_unlock(&p->p_sigacts->ps_mtx);
PROC_UNLOCK(p);
error = copyin(&ku->ku_mailbox->km_sigscaught, &ss, sizeof(sigset_t));
if (error)
@ -1414,6 +1415,7 @@ thread_signal_add(struct thread *td, int sig)
goto error;
PROC_LOCK(p);
mtx_lock(&p->p_sigacts->ps_mtx);
return;
error:
PROC_LOCK(p);

8
sys/kern/kern_thread.c
View File

@ -1397,11 +1397,12 @@ thread_signal_add(struct thread *td, int sig)
sigset_t ss;
int error;
PROC_LOCK_ASSERT(td->td_proc, MA_OWNED);
p = td->td_proc;
PROC_LOCK_ASSERT(p, MA_OWNED);
mtx_assert(&p->p_sigacts->ps_mtx, MA_OWNED);
td = curthread;
ku = td->td_upcall;
p = td->td_proc;
mtx_unlock(&p->p_sigacts->ps_mtx);
PROC_UNLOCK(p);
error = copyin(&ku->ku_mailbox->km_sigscaught, &ss, sizeof(sigset_t));
if (error)
@ -1414,6 +1415,7 @@ thread_signal_add(struct thread *td, int sig)
goto error;
PROC_LOCK(p);
mtx_lock(&p->p_sigacts->ps_mtx);
return;
error:
PROC_LOCK(p);