[Emacs-diffs] emacs-25 5a44bfe 1/2: Set auto-revert-use-notify to nil in global-auto-revert-mode. (Bug#22814)

[Michael Albinus]

branch: emacs-25
commit 5a44bfea9d4a6e6fbc8c74aa7e8691b47397927a
Author: Michael Albinus <address@hidden>
Commit: Michael Albinus <address@hidden>

    Set auto-revert-use-notify to nil in global-auto-revert-mode.  (Bug#22814)
    
    * etc/NEWS:
    * etc/PROBLEMS: Mention this.
    
    * lisp/autorevert.el (global-auto-revert-mode): Set
    `auto-revert-use-notify' to nil.  (Bug#22814)
---
 etc/NEWS           |   10 ++++++++--
 etc/PROBLEMS       |    3 ++-
 lisp/autorevert.el |    6 +++++-
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/etc/NEWS b/etc/NEWS
index 8d86605..ecbc4ef 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -1222,9 +1222,15 @@ make the new option 
`eshell-destroy-buffer-when-process-dies' non-nil.
 ** tar-mode: new `tar-new-entry' command, allowing for new members to
 be added to the archive.
 
+** Autorevert
+
+---
+*** Dired buffers are also auto-reverted via file notifications, if
+Emacs is compiled with file notification support.
+
 ---
-** Autorevert: dired buffers are also auto-reverted via file
-notifications, if Emacs is compiled with file notification support.
+*** `auto-revert-use-notify' is set to nil in `global-auto-revert-mode'.
+See <http://debbugs.gnu.org/22814>.
 
 ** File Notifications
 
diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 0491935..d531367 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -601,6 +601,7 @@ can cause this error.  Remove that file, execute 
'ispell-kill-ispell'
 in Emacs, and then try spell-checking again.
 
 *** Emacs eats all file descriptors when using kqueue file notifications.
+See <http://debbugs.gnu.org/22814>.
 
 When you have a large number of buffers running auto-revert-mode, and
 Emacs is configured to use the kqueue file notification library, it
@@ -608,7 +609,7 @@ uses an own file descriptor for every watched file.  On 
systems with a
 small limit of file descriptors allowed per process, like OS X, you
 could run out of file descriptors.  You won't be able to open new files.
 
-Set auto-revert-use-notify to nil in order to avoid this problem.
+auto-revert-use-notify is set to nil in global-auto-revert-mode, therefore.
 
 * Runtime problems related to font handling
 
diff --git a/lisp/autorevert.el b/lisp/autorevert.el
index 14e39bd..bde8eb8 100644
--- a/lisp/autorevert.el
+++ b/lisp/autorevert.el
@@ -458,7 +458,11 @@ specifies in the mode line."
   :global t :group 'auto-revert :lighter global-auto-revert-mode-text
   (auto-revert-set-timer)
   (if global-auto-revert-mode
-      (auto-revert-buffers)
+      (progn
+        ;; We disable file notification because it could use too many
+        ;; ressources.  See <http://debbugs.gnu.org/22814>.
+        (setq auto-revert-use-notify nil)
+        (auto-revert-buffers))
     (dolist (buf (buffer-list))
       (with-current-buffer buf
        (when auto-revert-use-notify