Messages in this thread Patch in this message | | | Date | Fri, 13 Nov 2020 22:10:48 +0800 | From | Hui Su <> | Subject | [PATCH] mm/page_counter: use page_counter_read in page_counter_set_max |
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use page_counter_read() in page_counter_set_max().
Signed-off-by: Hui Su <sh_def@163.com> --- mm/page_counter.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/page_counter.c b/mm/page_counter.c index b24a60b28bb0..c6860f51b6c6 100644 --- a/mm/page_counter.c +++ b/mm/page_counter.c @@ -183,14 +183,14 @@ int page_counter_set_max(struct page_counter *counter, unsigned long nr_pages) * the limit, so if it sees the old limit, we see the * modified counter and retry. */ - usage = atomic_long_read(&counter->usage); + usage = page_counter_read(counter); if (usage > nr_pages) return -EBUSY; old = xchg(&counter->max, nr_pages); - if (atomic_long_read(&counter->usage) <= usage) + if (page_counter_read(counter) <= usage) return 0; counter->max = old; -- 2.29.0
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