add cifs_timeout to kernel 3.5

pkgs/os-specific/linux/kernel/cifs-timeout-3.5.7.patch

@@ -0,0 +1,13 @@
+--- a/fs/cifs/transport.c.old	2012-11-06 10:53:23.640093369 +0100
++++ a/fs/cifs/transport.c	2012-11-06 10:54:31.835469340 +0100
+@@ -176,8 +176,8 @@
+ 			 * after the retries we will kill the socket and
+ 			 * reconnect which may clear the network problem.
+ 			 */
+-			if ((i >= 14) || (!server->noblocksnd && (i > 2))) {
+-				cERROR(1, "sends on sock %p stuck for 15 seconds",
++			if ((i >= 119) || (!server->noblocksnd && (i > 2))) {
++				cERROR(1, "sends on sock %p stuck for 119 seconds",
+ 				    ssocket);
+ 				rc = -EAGAIN;
+ 				break;

pkgs/os-specific/linux/kernel/patches.nix

@@ -230,6 +230,12 @@ rec {
       features.cifsTimeout = true;
     };
 
+  cifs_timeout_3_5_7 =
+    { name = "cifs-timeout";
+      patch = ./cifs-timeout-3.5.7.patch;
+      features.cifsTimeout = true;
+    };
+
   no_xsave =
     { name = "no-xsave";
       patch = ./no-xsave.patch;

pkgs/top-level/all-packages.nix

@@ -5897,6 +5897,7 @@ let
         kernelPatches.sec_perm_2_6_24
         kernelPatches.aufs3_5
         kernelPatches.perf3_5
+        kernelPatches.cifs_timeout_3_5_7
       ] ++ lib.optionals (platform.kernelArch == "mips")
       [ kernelPatches.mips_fpureg_emu
         kernelPatches.mips_fpu_sigill