Tetsuo Handa wrote:

Michal Hocko wrote:

quoted

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 544d47e5cbbd..86a48affb938 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c

@@ -1896,7 +1896,7 @@ static int try_charge(struct mem_cgroup *memcg, gfp_t gfp_mask,
 	 * bypass the last charges so that they can exit quickly and
 	 * free their memory.
 	 */
-	if (unlikely(test_thread_flag(TIF_MEMDIE) ||
+	if (unlikely(tsk_is_oom_victim(current) ||
 		     fatal_signal_pending(current) ||
 		     current->flags & PF_EXITING))
 		goto force;

Did we check http://lkml.kernel.org/r/20160909140508.GO4844@dhcp22.suse.cz ?

quoted

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index c9f3569a76c7..65cc2f9aaa05 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c

@@ -483,7 +483,7 @@ static bool __oom_reap_task_mm(struct task_struct *tsk, struct mm_struct *mm)
 	 *				[...]
 	 *				out_of_memory
 	 *				  select_bad_process
-	 *				    # no TIF_MEMDIE task selects new victim
+	 *				    # no TIF_MEMDIE, selects new victim
 	 *  unmap_page_range # frees some memory
 	 */
 	mutex_lock(&oom_lock);

This comment is wrong. No MMF_OOM_SKIP mm selects new victim.

Oops. "MMF_OOM_SKIP mm selects new victim." according to
http://lkml.kernel.org/r/201706271952.FEB21375.SFJFHOQLOtVOMF@I-love.SAKURA.ne.jp .

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>