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mm: memcontrol: delete unused lrucare handling

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Swapin faults were the last event to charge pages after they had already
been put on the LRU list.  Now that we charge directly on swapin, the
lrucare portion of the charge code is unused.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Shakeel Butt <shakeelb@google.com>
Link: http://lkml.kernel.org/r/20200508183105.225460-19-hannes@cmpxchg.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner
2020-06-03 16:02:24 -07:00
committed by Linus Torvalds
parent 0a27cae138
commit d9eb1ea2bf
11 changed files with 19 additions and 70 deletions
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mm/shmem.c
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@@ -624,7 +624,7 @@ static int shmem_add_to_page_cache(struct page *page,
page->index = index;
if (!PageSwapCache(page)) {
error = mem_cgroup_charge(page, charge_mm, gfp, false);
error = mem_cgroup_charge(page, charge_mm, gfp);
if (error) {
if (PageTransHuge(page)) {
count_vm_event(THP_FILE_FALLBACK);