Merge with mainline to remove plat-omap/Kconfig conflict

Conflicts:
	arch/arm/plat-omap/Kconfig

1 files changed, 8 insertions, 9 deletions

diff --git a/tools/perf/util/debugfs.c b/tools/perf/util/debugfs.c
index 06b73ee02c49..a88fefc0cc0a 100644
--- a/tools/perf/util/debugfs.c
+++ b/tools/perf/util/debugfs.c
@@ -106,16 +106,14 @@ int debugfs_valid_entry(const char *path)
         return 0;
 }
 
-/* mount the debugfs somewhere */
+/* mount the debugfs somewhere if it's not mounted */
 
-int debugfs_mount(const char *mountpoint)
+char *debugfs_mount(const char *mountpoint)
 {
-        char mountcmd[128];
-
         /* see if it's already mounted */
         if (debugfs_find_mountpoint()) {
                 debugfs_premounted = 1;
-                return 0;
+                return debugfs_mountpoint;
         }
 
         /* if not mounted and no argument */
@@ -127,13 +125,14 @@ int debugfs_mount(const char *mountpoint)
                         mountpoint = "/sys/kernel/debug";
         }
 
+        if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0)
+                return NULL;
+
         /* save the mountpoint */
         strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint));
+        debugfs_found = 1;
 
-        /* mount it */
-        snprintf(mountcmd, sizeof(mountcmd),
-                 "/bin/mount -t debugfs debugfs %s", mountpoint);
-        return system(mountcmd);
+        return debugfs_mountpoint;
 }
 
 /* umount the debugfs */