OS-5148 ftruncate at offset should emit proper events
Reviewed by: Bryan Cantrill <bryan@joyent.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
OS-3462 rename on NFSv4 filesystem induces panic
OS-3294 add support for inotify
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>

@@ -32,11 +32,11 @@
  *      Copyright 1983,1984,1985,1986,1987,1988,1989 AT&T.
  *      All Rights Reserved
  */
 
 /*
- * Copyright (c) 2013, Joyent, Inc. All rights reserved.
+ * Copyright (c) 2014, Joyent, Inc. All rights reserved.
  */
 
 #include <sys/param.h>
 #include <sys/types.h>
 #include <sys/systm.h>

@@ -3737,12 +3737,17 @@
          * to setattr (e.g. basic without chmod) then we will
          * need to add a check here before calling the server.
          */
         error = nfs4setattr(vp, vap, flags, cr, NULL);
 
-        if (error == 0 && (vap->va_mask & AT_SIZE) && vap->va_size == 0)
+        if (error == 0 && (vap->va_mask & AT_SIZE)) {
+                if (vap->va_size == 0) {
                 vnevent_truncate(vp, ct);
+                } else {
+                        vnevent_resize(vp, ct);
+                }
+        }
 
         return (error);
 }
 
 /*

@@ -8061,12 +8066,13 @@
         /*
          * Notify the rename vnevents to source vnode, and to the target
          * vnode if it already existed.
          */
         if (error == 0) {
-                vnode_t *tvp;
+                vnode_t *tvp, *tovp;
                 rnode4_t *trp;
+
                 /*
                  * Notify the vnode. Each links is represented by
                  * a different vnode, in nfsv4.
                  */
                 if (nvp) {

@@ -8075,27 +8081,24 @@
                         if (IS_SHADOW(nvp, trp))
                                 tvp = RTOV4(trp);
                         vnevent_rename_dest(tvp, ndvp, nnm, ct);
                 }
 
-                /*
-                 * if the source and destination directory are not the
-                 * same notify the destination directory.
-                 */
-                if (VTOR4(odvp) != VTOR4(ndvp)) {
+                trp = VTOR4(ovp);
+                tovp = ovp;
+                if (IS_SHADOW(ovp, trp))
+                        tovp = RTOV4(trp);
+
+                vnevent_rename_src(tovp, odvp, onm, ct);
+
                         trp = VTOR4(ndvp);
                         tvp = ndvp;
+
                         if (IS_SHADOW(ndvp, trp))
                                 tvp = RTOV4(trp);
-                        vnevent_rename_dest_dir(tvp, ct);
-                }
 
-                trp = VTOR4(ovp);
-                tvp = ovp;
-                if (IS_SHADOW(ovp, trp))
-                        tvp = RTOV4(trp);
-                vnevent_rename_src(tvp, odvp, onm, ct);
+                vnevent_rename_dest_dir(tvp, tovp, nnm, ct);
         }
 
         if (nvp) {
                 VN_RELE(nvp);
         }

@@ -11000,12 +11003,17 @@
 
                         va.va_mask = AT_SIZE;
                         va.va_size = bfp->l_start;
                         error = nfs4setattr(vp, &va, 0, cr, NULL);
 
-                        if (error == 0 && bfp->l_start == 0)
+                        if (error == 0) {
+                                if (bfp->l_start == 0) {
                                 vnevent_truncate(vp, ct);
+                                } else {
+                                        vnevent_resize(vp, ct);
+                                }
+                        }
                 } else
                         error = EINVAL;
         }
 
         return (error);