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authorYu Zhao <yuzhao@google.com>2021-02-24 21:08:21 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-24 22:38:33 +0100
commit861404536a3af3c39f1b10959a40def3d8efa2dd (patch)
treed489c3d2da83974f21bfa7ebd101f1178d9d4164
parentmm: don't pass "enum lru_list" to lru list addition functions (diff)
downloadlinux-861404536a3af3c39f1b10959a40def3d8efa2dd.tar.xz
linux-861404536a3af3c39f1b10959a40def3d8efa2dd.zip
mm/swap.c: don't pass "enum lru_list" to trace_mm_lru_insertion()
The parameter is redundant in the sense that it can be extracted from the "struct page" parameter by page_lru() correctly. Link: https://lore.kernel.org/linux-mm/20201207220949.830352-5-yuzhao@google.com/ Link: https://lkml.kernel.org/r/20210122220600.906146-5-yuzhao@google.com Signed-off-by: Yu Zhao <yuzhao@google.com> Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Roman Gushchin <guro@fb.com> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/trace/events/pagemap.h11
-rw-r--r--mm/swap.c5
2 files changed, 5 insertions, 11 deletions
diff --git a/include/trace/events/pagemap.h b/include/trace/events/pagemap.h
index 8fd1babae761..e1735fe7c76a 100644
--- a/include/trace/events/pagemap.h
+++ b/include/trace/events/pagemap.h
@@ -27,24 +27,21 @@
TRACE_EVENT(mm_lru_insertion,
- TP_PROTO(
- struct page *page,
- int lru
- ),
+ TP_PROTO(struct page *page),
- TP_ARGS(page, lru),
+ TP_ARGS(page),
TP_STRUCT__entry(
__field(struct page *, page )
__field(unsigned long, pfn )
- __field(int, lru )
+ __field(enum lru_list, lru )
__field(unsigned long, flags )
),
TP_fast_assign(
__entry->page = page;
__entry->pfn = page_to_pfn(page);
- __entry->lru = lru;
+ __entry->lru = page_lru(page);
__entry->flags = trace_pagemap_flags(page);
),
diff --git a/mm/swap.c b/mm/swap.c
index 22fad34b9c18..a26e3a4fe17b 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -957,7 +957,6 @@ EXPORT_SYMBOL(__pagevec_release);
static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec)
{
- enum lru_list lru;
int was_unevictable = TestClearPageUnevictable(page);
int nr_pages = thp_nr_pages(page);
@@ -993,11 +992,9 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec)
smp_mb__after_atomic();
if (page_evictable(page)) {
- lru = page_lru(page);
if (was_unevictable)
__count_vm_events(UNEVICTABLE_PGRESCUED, nr_pages);
} else {
- lru = LRU_UNEVICTABLE;
ClearPageActive(page);
SetPageUnevictable(page);
if (!was_unevictable)
@@ -1005,7 +1002,7 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec)
}
add_page_to_lru_list(page, lruvec);
- trace_mm_lru_insertion(page, lru);
+ trace_mm_lru_insertion(page);
}
/*