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authorjhb <jhb@FreeBSD.org>2001-04-24 00:51:53 +0000
committerjhb <jhb@FreeBSD.org>2001-04-24 00:51:53 +0000
commit9c03a8ae91e06e47f0c59996ef0e2300e231e101 (patch)
treeec00c764b1eb58ed4297070edb5806ffd7ca4765 /sys/compat/svr4/svr4_misc.c
parent383dd0a2656889604bb7eb71b993875024ddd832 (diff)
downloadFreeBSD-src-9c03a8ae91e06e47f0c59996ef0e2300e231e101.zip
FreeBSD-src-9c03a8ae91e06e47f0c59996ef0e2300e231e101.tar.gz
Change the pfind() and zpfind() functions to lock the process that they
find before releasing the allproc lock and returning. Reviewed by: -smp, dfr, jake
Diffstat (limited to 'sys/compat/svr4/svr4_misc.c')
-rw-r--r--sys/compat/svr4/svr4_misc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/compat/svr4/svr4_misc.c b/sys/compat/svr4/svr4_misc.c
index 7e6ddd7..8a35e84 100644
--- a/sys/compat/svr4/svr4_misc.c
+++ b/sys/compat/svr4/svr4_misc.c
@@ -1010,6 +1010,7 @@ svr4_sys_pgrpsys(p, uap)
* the session leader.
*/
*retval = (register_t) p->p_session->s_leader->p_pid;
+ PROC_UNLOCK(p);
return 0;
case 3: /* setsid() */
@@ -1022,6 +1023,7 @@ svr4_sys_pgrpsys(p, uap)
return ESRCH;
*retval = (int) p->p_pgrp->pg_id;
+ PROC_UNLOCK(p);
return 0;
case 5: /* setpgid(pid, pgid); */
@@ -1264,11 +1266,10 @@ loop:
q->p_oppid = 0;
q->p_flag &= ~(P_TRACED | P_WAITED);
PROC_UNLOCK(q);
- PROC_LOCK(t);
psignal(t, SIGCHLD);
+ wakeup(t);
PROC_UNLOCK(t);
sx_xunlock(&proctree_lock);
- wakeup(t);
return 0;
}
}
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