* filenotify.el (file-notify-supported-p):

* net/tramp-sh.el (tramp-sh-handle-file-notify-supported-p):
Remove functions.

* autorevert.el (auto-revert-use-notify):
(auto-revert-notify-add-watch):
* net/tramp.el (tramp-file-name-for-operation):
* net/tramp-adb.el (tramp-adb-file-name-handler-alist):
* net/tramp-gvfs.el (tramp-gvfs-file-name-handler-alist):
* net/tramp-sh.el (tramp-sh-file-name-handler-alist):
* net/tramp-smb.el (tramp-smb-file-name-handler-alist):
Remove `file-notify-supported-p' entry.

8 files changed, 27 insertions, 35 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 886c3075653..bd7c43983fe 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,18 @@
+2013-07-24  Michael Albinus  <michael.albinus@gmx.de>
+
+        * filenotify.el (file-notify-supported-p):
+        * net/tramp-sh.el (tramp-sh-handle-file-notify-supported-p):
+        Remove functions.
+
+        * autorevert.el (auto-revert-use-notify):
+        (auto-revert-notify-add-watch):
+        * net/tramp.el (tramp-file-name-for-operation):
+        * net/tramp-adb.el (tramp-adb-file-name-handler-alist):
+        * net/tramp-gvfs.el (tramp-gvfs-file-name-handler-alist):
+        * net/tramp-sh.el (tramp-sh-file-name-handler-alist):
+        * net/tramp-smb.el (tramp-smb-file-name-handler-alist):
+        Remove `file-notify-supported-p' entry.
+
 2013-07-24  Glenn Morris  <rgm@gnu.org>
 
         * printing.el: Replace all uses of deleted ps-windows-system,
diff --git a/lisp/autorevert.el b/lisp/autorevert.el
index 5c593e2ef71..1617a31cd82 100644
--- a/lisp/autorevert.el
+++ b/lisp/autorevert.el
@@ -271,9 +271,7 @@ This variable becomes buffer local when set in any fashion.")
   :type 'boolean
   :version "24.4")
 
-(defcustom auto-revert-use-notify
-  ;; We use the support of the local filesystem as default.
-  (file-notify-supported-p temporary-file-directory)
+(defcustom auto-revert-use-notify t
   "If non-nil Auto Revert Mode uses file notification functions.
 You should set this variable through Custom."
   :group 'auto-revert
@@ -512,8 +510,7 @@ will use an up-to-date value of `auto-revert-interval'"
     (set (make-local-variable 'auto-revert-use-notify) nil))
 
   (when (and buffer-file-name auto-revert-use-notify
-             (not auto-revert-notify-watch-descriptor)
-             (file-notify-supported-p buffer-file-name))
+             (not auto-revert-notify-watch-descriptor))
     (setq auto-revert-notify-watch-descriptor
           (ignore-errors
             (file-notify-add-watch
diff --git a/lisp/filenotify.el b/lisp/filenotify.el
index c9a7e106faa..d2f37b99107 100644
--- a/lisp/filenotify.el
+++ b/lisp/filenotify.el
@@ -190,17 +190,6 @@ car of that event, which is the symbol `file-notify'."
             (funcall callback (list desc action file file1))
           (funcall callback (list desc action file)))))))
 
-(defun file-notify-supported-p (file)
-  "Returns non-nil if filesystem pertaining to FILE could be watched."
-  (unless (stringp file)
-    (signal 'wrong-type-argument (list file)))
-  (setq file (expand-file-name file))
-
-  (let ((handler (find-file-name-handler file 'file-notify-supported-p)))
-    (if handler
-        (funcall handler 'file-notify-supported-p file)
-      (and file-notify--library t))))
-
 (defun file-notify-add-watch (file flags callback)
   "Add a watch for filesystem events pertaining to FILE.
 This arranges for filesystem events pertaining to FILE to be reported
@@ -274,10 +263,11 @@ FILE is the name of the file whose event is being reported."
                   '("No file notification package available")))
 
         ;; Determine low-level function to be called.
-        (setq func (cond
-                    ((eq file-notify--library 'gfilenotify) 'gfile-add-watch)
-                    ((eq file-notify--library 'inotify) 'inotify-add-watch)
-                    ((eq file-notify--library 'w32notify) 'w32notify-add-watch)))
+        (setq func
+              (cond
+               ((eq file-notify--library 'gfilenotify) 'gfile-add-watch)
+               ((eq file-notify--library 'inotify) 'inotify-add-watch)
+               ((eq file-notify--library 'w32notify) 'w32notify-add-watch)))
 
         ;; Determine respective flags.
         (if (eq file-notify--library 'gfilenotify)
diff --git a/lisp/net/tramp-adb.el b/lisp/net/tramp-adb.el
index d2acea0b1b1..82b017fa230 100644
--- a/lisp/net/tramp-adb.el
+++ b/lisp/net/tramp-adb.el
@@ -110,7 +110,6 @@
     (file-modes . tramp-handle-file-modes)
     (file-notify-add-watch . tramp-handle-file-notify-add-watch)
     (file-notify-rm-watch . ignore)
-    (file-notify-supported-p . ignore)
     (expand-file-name . tramp-adb-handle-expand-file-name)
     (find-backup-file-name . tramp-handle-find-backup-file-name)
     (directory-files . tramp-handle-directory-files)
diff --git a/lisp/net/tramp-gvfs.el b/lisp/net/tramp-gvfs.el
index c6c5a9543cb..e25c9bd4caf 100644
--- a/lisp/net/tramp-gvfs.el
+++ b/lisp/net/tramp-gvfs.el
@@ -437,7 +437,6 @@ Every entry is a list (NAME ADDRESS).")
     (file-newer-than-file-p . tramp-handle-file-newer-than-file-p)
     (file-notify-add-watch . tramp-handle-file-notify-add-watch)
     (file-notify-rm-watch . ignore)
-    (file-notify-supported-p . ignore)
     (file-ownership-preserved-p . ignore)
     (file-readable-p . tramp-gvfs-handle-file-readable-p)
     (file-regular-p . tramp-handle-file-regular-p)
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index d2fc1b9979e..c92eacd4473 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -867,8 +867,7 @@ of command line.")
     (set-file-acl . tramp-sh-handle-set-file-acl)
     (vc-registered . tramp-sh-handle-vc-registered)
     (file-notify-add-watch . tramp-sh-handle-file-notify-add-watch)
-    (file-notify-rm-watch . tramp-sh-handle-file-notify-rm-watch)
-    (file-notify-supported-p . tramp-sh-handle-file-notify-supported-p))
+    (file-notify-rm-watch . tramp-sh-handle-file-notify-rm-watch))
   "Alist of handler functions.
 Operations not mentioned here will be handled by the normal Emacs functions.")
 
@@ -3499,13 +3498,6 @@ Fall back to normal file name handler if no Tramp handler exists."
   (tramp-message proc 6 (format "Kill %S" proc))
   (kill-process proc))
 
-(defun tramp-sh-handle-file-notify-supported-p (file-name)
-  "Like `file-notify-supported-p' for Tramp files."
-  (with-parsed-tramp-file-name (expand-file-name file-name) nil
-    (and (or (tramp-get-remote-gvfs-monitor-dir v)
-             (tramp-get-remote-inotifywait v))
-         t)))
-
 ;;; Internal Functions:
 
 (defun tramp-maybe-send-script (vec script name)
diff --git a/lisp/net/tramp-smb.el b/lisp/net/tramp-smb.el
index ad22ab98e43..fee34f856dd 100644
--- a/lisp/net/tramp-smb.el
+++ b/lisp/net/tramp-smb.el
@@ -211,7 +211,6 @@ See `tramp-actions-before-shell' for more info.")
     (file-newer-than-file-p . tramp-handle-file-newer-than-file-p)
     (file-notify-add-watch . tramp-handle-file-notify-add-watch)
     (file-notify-rm-watch . ignore)
-    (file-notify-supported-p . ignore)
     (file-ownership-preserved-p . ignore)
     (file-readable-p . tramp-handle-file-exists-p)
     (file-regular-p . tramp-handle-file-regular-p)
diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
index 9c19a160a0b..db6a1e381a6 100644
--- a/lisp/net/tramp.el
+++ b/lisp/net/tramp.el
@@ -1980,7 +1980,7 @@ ARGS are the arguments OPERATION has been called with."
                   ;; Emacs 22+ only.
                   'set-file-times
                   ;; Emacs 24+ only.
-                  'file-acl 'file-notify-add-watch 'file-notify-supported-p
+                  'file-acl 'file-notify-add-watch
                   'file-selinux-context 'set-file-acl 'set-file-selinux-context
                   ;; XEmacs only.
                   'abbreviate-file-name 'create-file-buffer
@@ -2036,8 +2036,9 @@ ARGS are the arguments OPERATION has been called with."
     default-directory)
    ;; PROC.
    ((eq operation 'file-notify-rm-watch)
-    (with-current-buffer (process-buffer (nth 0 args))
-      default-directory))
+    (when (processp (nth 0 args))
+      (with-current-buffer (process-buffer (nth 0 args))
+        default-directory)))
    ;; Unknown file primitive.
    (t (error "unknown file I/O primitive: %s" operation))))