[merged] mm-page_counter-remove-an-incorrect-call-to-propagate_protected_usage.patch removed from -mm tree

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The patch titled
     Subject: mm/page_counter: remove an incorrect call to propagate_protected_usage()
has been removed from the -mm tree.  Its filename was
     mm-page_counter-remove-an-incorrect-call-to-propagate_protected_usage.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Donghai Qiao <dqiao@xxxxxxxxxx>
Subject: mm/page_counter: remove an incorrect call to propagate_protected_usage()

propagate_protected_usage() is called to propagate the usage change in the
page_counter structure.  But there is a call to this function from
page_counter_try_charge() when there is actually no usage change.  Hence
this call should be removed.

Link: https://lkml.kernel.org/r/20211118181125.3918222-1-dqiao@xxxxxxxxxx
Signed-off-by: Donghai Qiao <dqiao@xxxxxxxxxx>
Reviewed-by: Roman Gushchin <guro@xxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/page_counter.c |    1 -
 1 file changed, 1 deletion(-)

--- a/mm/page_counter.c~mm-page_counter-remove-an-incorrect-call-to-propagate_protected_usage
+++ a/mm/page_counter.c
@@ -120,7 +120,6 @@ bool page_counter_try_charge(struct page
 		new = atomic_long_add_return(nr_pages, &c->usage);
 		if (new > c->max) {
 			atomic_long_sub(nr_pages, &c->usage);
-			propagate_protected_usage(c, new);
 			/*
 			 * This is racy, but we can live with some
 			 * inaccuracy in the failcnt which is only used
_

Patches currently in -mm which might be from dqiao@xxxxxxxxxx are





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