From f31d0140944777649798625457c6e38cdd5f4b33 Mon Sep 17 00:00:00 2001
From: jhb <jhb@FreeBSD.org>
Date: Wed, 6 Dec 2000 01:45:20 +0000
Subject: Protect accesses to member of struct proc with the proc lock.

---
 sys/coda/coda_psdev.c | 7 +++++--
 sys/coda/coda_venus.c | 4 ++++
 sys/coda/coda_vnops.c | 3 +++
 3 files changed, 12 insertions(+), 2 deletions(-)

(limited to 'sys/coda')

diff --git a/sys/coda/coda_psdev.c b/sys/coda/coda_psdev.c
index 7d31eb8..18fda00 100644
--- a/sys/coda/coda_psdev.c
+++ b/sys/coda/coda_psdev.c
@@ -488,7 +488,7 @@ coda_call(mntinfo, inSize, outSize, buffer)
 	int error;
 #ifdef	CTL_C
 	struct proc *p = curproc;
-	sigset_t psig_omask = p->p_sigmask;
+	sigset_t psig_omask;
 	sigset_t tempset;
 	int i;
 #endif
@@ -544,8 +544,10 @@ coda_call(mntinfo, inSize, outSize, buffer)
 	   can not do this.  A better solution is necessary.
 	 */
 	i = 0;
+	PROC_LOCK(p);
+	psig_omask = p->p_sigmask;
 	do {
-		error = tsleep(&vmp->vm_sleep,
+		error = msleep(&vmp->vm_sleep, &p->p_mtx,
 			       (coda_call_sleep|coda_pcatch), "coda_call",
 			       hz*2);
 		if (error == 0)
@@ -597,6 +599,7 @@ coda_call(mntinfo, inSize, outSize, buffer)
 		}
 	} while (error && i++ < 128 && VC_OPEN(vcp));
 	p->p_sigmask = psig_omask;
+	PROC_UNLOCK(p);
 #else
 	(void) tsleep(&vmp->vm_sleep, coda_call_sleep, "coda_call", 0);
 #endif
diff --git a/sys/coda/coda_venus.c b/sys/coda/coda_venus.c
index f273574..e022a4d 100644
--- a/sys/coda/coda_venus.c
+++ b/sys/coda/coda_venus.c
@@ -93,9 +93,13 @@
 
 #define INIT_IN(in, op, ident, p) \
 	  (in)->opcode = (op); \
+	  if (p) \
+	      PROC_LOCK(p); \
 	  (in)->pid = p ? p->p_pid : -1; \
           (in)->pgid = p ? p->p_pgid : -1; \
           (in)->sid = (p && p->p_session && p->p_session->s_leader) ? (p->p_session->s_leader->p_pid) : -1; \
+	  if (p) \
+	      PROC_UNLOCK(p); \
           if (ident != NOCRED) {                              \
 	      (in)->cred.cr_uid = ident->cr_uid;              \
 	      (in)->cred.cr_groupid = ident->cr_gid;          \
diff --git a/sys/coda/coda_vnops.c b/sys/coda/coda_vnops.c
index c2e6bcf..496b58b 100644
--- a/sys/coda/coda_vnops.c
+++ b/sys/coda/coda_vnops.c
@@ -431,7 +431,9 @@ coda_rdwr(vp, uiop, rw, ioflag, cred, p)
 	 * venus won't have the correct size of the core when
 	 * it's completely written.
 	 */
+	PROC_LOCK(p);
 	if (cp->c_inode != 0 && !(p && (p->p_acflag & ACORE))) { 
+	    PROC_UNLOCK(p);
 	    igot_internally = 1;
 	    error = coda_grab_vnode(cp->c_device, cp->c_inode, &cfvp);
 	    if (error) {
@@ -445,6 +447,7 @@ coda_rdwr(vp, uiop, rw, ioflag, cred, p)
 	    VOP_UNLOCK(cfvp, 0, p);
 	}
 	else {
+	    PROC_UNLOCK(p);
 	    opened_internally = 1;
 	    MARK_INT_GEN(CODA_OPEN_STATS);
 	    error = VOP_OPEN(vp, (rw == UIO_READ ? FREAD : FWRITE), 
-- 
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