[ewg] [PATCH] install.pl: rework logic determining whether to allow NFSRDMA

[Jon Mason]

It is possible to install NFSRDMA on unsupported distros by installing a
newer kernel on an older distro.  Unfortunately, this causes issues with
trying to instal rnfs-utils and potentially other nasty side effects.
By reducing the logic to check for the supported distros and the
supported kernels only, then this should it prevent from happening.
Also, the logic is much cleaner this way.

This fixes bug 1825

Signed-Off-By: Jon Mason <jon at opengridcomputing.com>

diff --git a/install.pl b/install.pl
index d0f4cf2..56767b4 100755
--- a/install.pl
+++ b/install.pl
@@ -1713,25 +1713,12 @@ sub set_availability
     }
 
     # NFSRDMA
-    if ($subdistro ne "openSUSE" and $kernel =~ m/2.6.2[25]|2.6.27.*-*|2.6.30/) {
+    if (($distro eq "redhat5" or $subdistro eq "SLES10" or $subdistro eq "SLES11") and
+	 $kernel =~ m/2.6.16.60-[0-9.]*-[A-Za-z0-9.]*|2.6.2[25]|2.6.27.*-*|2.6.30|el5/) {
             $kernel_modules_info{'nfsrdma'}{'available'} = 1;
             $packages_info{'rnfs-utils'}{'available'} = 1;
             $packages_info{'rnfs-utils-debuginfo'}{'available'} = 1;
     }
-    elsif ($kernel =~ m/2.6.16.60-[0-9.]*-[A-Za-z0-9.]*/) {
-            $kernel_modules_info{'nfsrdma'}{'available'} = 1;
-            $packages_info{'rnfs-utils'}{'available'} = 1;
-            $packages_info{'rnfs-utils-debuginfo'}{'available'} = 1;
-    }
-    elsif ($kernel =~ m/el5/) {
-            my $minor = (split '-', $kernel)[1];
-            $minor =~ s/(\.el5).*//;
-            if ($minor > 53) {
-                $kernel_modules_info{'nfsrdma'}{'available'} = 1;
-                $packages_info{'rnfs-utils'}{'available'} = 1;
-                $packages_info{'rnfs-utils-debuginfo'}{'available'} = 1;
-            }
-    }
 
     # RDS - cause kernel panic on RHEL4.
     # BUG: https://bugs.openfabrics.org/show_bug.cgi?id=1766