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authorHui Su <sh_def@163.com>2020-12-15 06:06:58 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 23:13:40 +0300
commit13064781304eb544066b9da403c95d05c0ea3624 (patch)
tree714b9bd61444c8a61b7579b2a52c4a3693446a93 /mm/page_counter.c
parent9d9d341df4d519d96e7927941d91f5785c5cea07 (diff)
downloadlinux-13064781304eb544066b9da403c95d05c0ea3624.tar.xz
mm/page_counter: use page_counter_read in page_counter_set_max
Use page_counter_read() in page_counter_set_max(). Link: https://lkml.kernel.org/r/20201113141048.GA178922@rlk Signed-off-by: Hui Su <sh_def@163.com> Reviewed-by: Pankaj Gupta <pankaj.gupta@cloud.ionos.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_counter.c')
-rw-r--r--mm/page_counter.c4
1 files 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;