File mainline-sysfs-paths.patch of Package numad

From 40f348eacb1c9a27f19e35341b373e351164a054 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Wed, 22 May 2013 14:41:40 +0100
Subject: [PATCH] Use sysfs configuration paths for mainline kernels
Upstream: no

The current recommended path for tuning THP is based on the RHEL kernel. Use
the mainline sysfs filenames.

Signed-off-by: Mel Gorman <mgorman@suse.de>
---
 numad.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/numad.c b/numad.c
index 9262cab..c9c86f5 100644
--- a/numad.c
+++ b/numad.c
@@ -731,7 +731,7 @@ void check_prereqs(char *prog_name) {
         exit(EXIT_FAILURE);
     }
     // Check on THP scan sleep time.
-    char *thp_scan_fname = "/sys/kernel/mm/redhat_transparent_hugepage/khugepaged/scan_sleep_millisecs";
+    char *thp_scan_fname = "/sys/kernel/mm/transparent_hugepage/khugepaged/scan_sleep_millisecs";
     int fd = open(thp_scan_fname, O_RDONLY, 0);
     if (fd >= 0) {
         int ms;
@@ -748,7 +748,7 @@ void check_prereqs(char *prog_name) {
                 fprintf(stderr, "Consider increasing the frequency of THP scanning,\n");
                 fprintf(stderr, "by echoing a smaller number (e.g. 100) to %s\n", thp_scan_fname);
                 fprintf(stderr, "to more aggressively (re)construct THPs.  For example:\n");
-                fprintf(stderr, "# echo 100 > /sys/kernel/mm/redhat_transparent_hugepage/khugepaged/scan_sleep_millisecs\n");
+                fprintf(stderr, "# echo 100 > /sys/kernel/mm/transparent_hugepage/khugepaged/scan_sleep_millisecs\n");
                 fprintf(stderr, "\n");
             }
         }