From: Alex Fiestas <afiestas@kde.org>
Date: Fri, 09 Sep 2011 16:54:23 +0000
Subject: Fix KDirWatch when using Kernel 3.0
X-Git-Url: http://quickgit.kde.org/?p=kdelibs.git&amp;a=commitdiff&amp;h=7df5a79fb9f09e4a4a80cd541cc478b5fa6df00f
---
Fix KDirWatch when using Kernel 3.0

To know INotify is available in the kernel we are checking for a
kernel newer than 2.6.14, that's all allright but the problem is
that the Kernel version format has changed  and now we can't be sure
that it is going to be formed by 3 numbers.
Basically we where checking for:

%d.%d.%d and now it can be %d.%d as it is with 3.0

This patch what does is check if the kernel is 2.6, if it is then
it proceed with the version checking.

CCMAIL: dfaure@kde.org
---


--- a/kdecore/io/kdirwatch.cpp
+++ b/kdecore/io/kdirwatch.cpp
@@ -210,16 +210,24 @@ KDirWatchPrivate::KDirWatchPrivate()
   {
     struct utsname uts;
     int major, minor, patch;
-    if (uname(&uts) < 0)
-      supports_inotify = false; // *shrug*
-    else if (sscanf(uts.release, "%d.%d.%d", &major, &minor, &patch) != 3)
-      supports_inotify = false; // *shrug*
-    else if( major * 1000000 + minor * 1000 + patch < 2006014 ) { // <2.6.14
-      kDebug(7001) << "Can't use INotify, Linux kernel too old";
+    if (uname(&uts) < 0) {
       supports_inotify = false;
+      kDebug(7001) << "Unable to get uname";
+    } else if (sscanf(uts.release, "%d.%d", &major, &minor) != 2) {
+      supports_inotify = false;
+      kDebug(7001) << "The version is malformed: " << uts.release;
+    } else if(major == 2 && minor == 6) { // If it is 2.6 check further...
+      if (sscanf(uts.release, "%d.%d.%d", &major, &minor, &patch) != 3) {
+        supports_inotify = false;
+        kDebug() << "Detected 2.6 kernel but can't know more: " << uts.release;
+      } else if (major * 1000000 + minor * 1000 + patch < 2006014 ){
+        supports_inotify = false;
+        kDebug(7001) << "Can't use INotify, Linux kernel too old " << uts.release;
+      }
     }
   }
 
+  kDebug() << "INotify available: " << supports_inotify;
   if ( supports_inotify ) {
     availableMethods << "INotify";
     fcntl(m_inotify_fd, F_SETFD, FD_CLOEXEC);