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 c5bfb3eacd08220711fd92725689d1c95f93e8a3..956b82ec8f7314333f3096085eaec77ca03f159c 100644 (file)
--- 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);
 }