vmscan: add task name to warn_scan_unevictable() messages

If we need to know a usecase, caller program name is critical important.
Show it.

Signed-off-by: KOSAKI Motohiro <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
David Rientjes <[email protected]>
Reviewed-by: Minchan Kim <[email protected]>
Reviewed-by: KAMEZAWA Hiroyuki <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 3d571df41c7917be30ebba1457c4004ead710ee9..974162c80edb3d4fd6380d888b9fb2fb7df95d88 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3436,9 +3436,10 @@ void scan_mapping_unevictable_pages(struct address_space *mapping)
 static void warn_scan_unevictable_pages(void)
 {
        printk_once(KERN_WARNING
-                   "The scan_unevictable_pages sysctl/node-interface has been "
+                   "%s: The scan_unevictable_pages sysctl/node-interface has been "
                    "disabled for lack of a legitimate use case.  If you have "
-                   "one, please send an email to [email protected].\n");
+                   "one, please send an email to [email protected].\n",
+                   current->comm);
 }
 
 /*