kmemleak: Scan all thread stacks

This patch changes the for_each_process() loop with the
do_each_thread()/while_each_thread() pair.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index c494fee7a2b5..74d4089d7588 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -1074,7 +1074,6 @@ static void kmemleak_scan(void)
 {
         unsigned long flags;
         struct kmemleak_object *object, *tmp;
-        struct task_struct *task;
         int i;
         int new_leaks = 0;
         int gray_list_pass = 0;
@@ -1141,15 +1140,16 @@ static void kmemleak_scan(void)
         }
 
         /*
-         * Scanning the task stacks may introduce false negatives and it is
-         * not enabled by default.
+         * Scanning the task stacks (may introduce false negatives).
          */
         if (kmemleak_stack_scan) {
+                struct task_struct *p, *g;
+
                 read_lock(&tasklist_lock);
-                for_each_process(task)
-                        scan_block(task_stack_page(task),
-                                   task_stack_page(task) + THREAD_SIZE,
-                                   NULL, 0);
+                do_each_thread(g, p) {
+                        scan_block(task_stack_page(p), task_stack_page(p) +
+                                   THREAD_SIZE, NULL, 0);
+                } while_each_thread(g, p);
                 read_unlock(&tasklist_lock);
         }