[src/netbsd-1-4]: src/sys/coda pull up rev 1.14 from trunk (requested by wrst...

[cgd <cgd%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/226fcea2a7da
branches:  netbsd-1-4
changeset: 469590:226fcea2a7da
user:      cgd <cgd%NetBSD.org@localhost>
date:      Mon Oct 18 05:04:48 1999 +0000

description:
pull up rev 1.14 from trunk (requested by wrstuden):
  In spec_close(), call the device's close routine with the vnode
  unlocked if the call might block. Force a non-blocking close if
  VXLOCK is set.  This eliminates a potential deadlock situation, and
  should eliminate the dirty buffers on reboot issue.

diffstat:

 sys/coda/coda_vnops.c |  15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)

diffs (48 lines):

diff -r 1733719634c8 -r 226fcea2a7da sys/coda/coda_vnops.c
--- a/sys/coda/coda_vnops.c     Mon Oct 18 05:04:41 1999 +0000
+++ b/sys/coda/coda_vnops.c     Mon Oct 18 05:04:48 1999 +0000
@@ -6,7 +6,7 @@
 rmdir
 symlink
 */
-/*     $NetBSD: coda_vnops.c,v 1.9.4.1 1999/10/10 20:50:52 cgd Exp $   */
+/*     $NetBSD: coda_vnops.c,v 1.9.4.2 1999/10/18 05:04:48 cgd Exp $   */
 
 /*
  * 
@@ -56,6 +56,13 @@
 /*
  * HISTORY
  * $Log: coda_vnops.c,v $
+ * Revision 1.9.4.2  1999/10/18 05:04:48  cgd
+ * pull up rev 1.14 from trunk (requested by wrstuden):
+ *   In spec_close(), call the device's close routine with the vnode
+ *   unlocked if the call might block. Force a non-blocking close if
+ *   VXLOCK is set.  This eliminates a potential deadlock situation, and
+ *   should eliminate the dirty buffers on reboot issue.
+ *
  * Revision 1.9.4.1  1999/10/10 20:50:52  cgd
  * pull up rev 1.13 from trunk (requested by mycroft):
  *   Fix potential overflow of v_usecount and v_writecount (and panics
@@ -539,8 +546,9 @@
 #ifdef hmm
            vgone(cp->c_ovp);
 #else
+           vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY);
            VOP_CLOSE(cp->c_ovp, flag, cred, p); /* Do errors matter here? */
-           vrele(cp->c_ovp);
+           vput(cp->c_ovp);
 #endif
        } else {
 #ifdef CODA_VERBOSE
@@ -549,8 +557,9 @@
        }
        return ENODEV;
     } else {
+       vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY);
        VOP_CLOSE(cp->c_ovp, flag, cred, p); /* Do errors matter here? */
-       vrele(cp->c_ovp);
+       vput(cp->c_ovp);
     }
 
     if (--cp->c_ocount == 0)