From: Richard M. Stallman <rms@gnu.org>
Date: Wed, 19 May 1999 02:27:09 +0000 (+0000)
Subject: Comment change.
X-Git-Tag: emacs-20.4~203
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=92a581153df9d0a44fd8cf75058cc9512bc40533;p=emacs.git

Comment change.
---

diff --git a/src/filelock.c b/src/filelock.c
index cbdf8468da5..f5e4fb85966 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -124,7 +124,13 @@ get_boot_time ()
   EMACS_GET_TIME (time_before);
 
   /* Try calculating the last boot time
-     from the uptime as obtained from /proc/uptime.  */
+     from the uptime as obtained from /proc/uptime.
+
+     This has a disadvantage in that if the system time has been
+     changed (say to correct the clock),
+     then current_time - uptime != wtmp_boot_time.
+     However, the speedup from doing this can be so great
+     that I think it is worth that problem occasionally.  */
 
   while ((fd = open ("/proc/uptime", O_RDONLY)) >= 0)
     {