cgroups: make messages more readable

Fix some cgroup messages to read better.
Update MAINTAINERS to include mm/*cgroup* files.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Paul Menage <menage@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 8 insertions, 7 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 2f5cf3d03621..5b7a08d88e4f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1544,6 +1544,7 @@ L:	containers@lists.linux-foundation.org
 S:      Maintained
 F:      include/linux/cgroup*
 F:      kernel/cgroup*
+F:      mm/*cgroup*
 
 CORETEMP HARDWARE MONITORING DRIVER
 P:      Rudolf Marek
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 11a8a10a3909..4f31c9b3e940 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -83,12 +83,12 @@ void __init page_cgroup_init_flatmem(void)
                         goto fail;
         }
         printk(KERN_INFO "allocated %ld bytes of page_cgroup\n", total_usage);
-        printk(KERN_INFO "please try cgroup_disable=memory option if you"
-        " don't want\n");
+        printk(KERN_INFO "please try 'cgroup_disable=memory' option if you"
+        " don't want memory cgroups\n");
         return;
 fail:
-        printk(KERN_CRIT "allocation of page_cgroup was failed.\n");
-        printk(KERN_CRIT "please try cgroup_disable=memory boot option\n");
+        printk(KERN_CRIT "allocation of page_cgroup failed.\n");
+        printk(KERN_CRIT "please try 'cgroup_disable=memory' boot option\n");
         panic("Out of memory");
 }
 
@@ -252,14 +252,14 @@ void __init page_cgroup_init(void)
                 fail = init_section_page_cgroup(pfn);
         }
         if (fail) {
-                printk(KERN_CRIT "try cgroup_disable=memory boot option\n");
+                printk(KERN_CRIT "try 'cgroup_disable=memory' boot option\n");
                 panic("Out of memory");
         } else {
                 hotplug_memory_notifier(page_cgroup_callback, 0);
         }
         printk(KERN_INFO "allocated %ld bytes of page_cgroup\n", total_usage);
-        printk(KERN_INFO "please try cgroup_disable=memory option if you don't"
-        " want\n");
+        printk(KERN_INFO "please try 'cgroup_disable=memory' option if you don't"
+        " want memory cgroups\n");
 }
 
 void __meminit pgdat_page_cgroup_init(struct pglist_data *pgdat)