From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Wed, 20 Jul 2022 02:18:01 +0000 (+0000)
Subject: mm/memcontrol: stop using mm->highest_vm_end
X-Git-Tag: howlett/maple/20220722_2~80
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a86d871021e145be2203373d062bbdc71e3522b3;p=users%2Fjedix%2Flinux-maple.git

mm/memcontrol: stop using mm->highest_vm_end

Pass through ULONG_MAX instead.

Link: https://lkml.kernel.org/r/20220504011345.662299-40-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20220621204632.3370049-56-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20220720021727.17018-56-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hulk Robot <hulkci@huawei.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c5bfb3eacd082..956b82ec8f731 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5857,7 +5857,7 @@ static unsigned long mem_cgroup_count_precharge(struct mm_struct *mm)
 	unsigned long precharge;
 
 	mmap_read_lock(mm);
-	walk_page_range(mm, 0, mm->highest_vm_end, &precharge_walk_ops, NULL);
+	walk_page_range(mm, 0, ULONG_MAX, &precharge_walk_ops, NULL);
 	mmap_read_unlock(mm);
 
 	precharge = mc.precharge;
@@ -6155,9 +6155,7 @@ retry:
 	 * When we have consumed all precharges and failed in doing
 	 * additional charge, the page walk just aborts.
 	 */
-	walk_page_range(mc.mm, 0, mc.mm->highest_vm_end, &charge_walk_ops,
-			NULL);
-
+	walk_page_range(mc.mm, 0, ULONG_MAX, &charge_walk_ops, NULL);
 	mmap_read_unlock(mc.mm);
 	atomic_dec(&mc.from->moving_account);
 }