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authorJohannes Weiner <hannes@cmpxchg.org>2024-03-12 11:34:12 -0400
committerAndrew Morton <akpm@linux-foundation.org>2024-04-25 20:55:48 -0700
commit4196b48ddd382419e51658bf94a25af195ba9450 (patch)
treed40a1612881356123e6b4896bdb888039dab0822 /mm/zswap.c
parent91cdcd8d624bfdf05e8db9d572759516f3c786b8 (diff)
downloadlwn-4196b48ddd382419e51658bf94a25af195ba9450.tar.gz
lwn-4196b48ddd382419e51658bf94a25af195ba9450.zip
mm: zpool: return pool size in pages
All zswap backends track their pool sizes in pages. Currently they multiply by PAGE_SIZE for zswap, only for zswap to divide again in order to do limit math. Report pages directly. Link: https://lkml.kernel.org/r/20240312153901.3441-2-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Yosry Ahmed <yosryahmed@google.com> Reviewed-by: Chengming Zhou <chengming.zhou@linux.dev> Reviewed-by: Nhat Pham <nphamcs@gmail.com> Cc: Yosry Ahmed <yosryahmed@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/zswap.c')
-rw-r--r--mm/zswap.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/zswap.c b/mm/zswap.c
index a56b76852664..8721980a2274 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -513,18 +513,18 @@ static unsigned long zswap_accept_thr_pages(void)
unsigned long zswap_total_pages(void)
{
struct zswap_pool *pool;
- u64 total = 0;
+ unsigned long total = 0;
rcu_read_lock();
list_for_each_entry_rcu(pool, &zswap_pools, list) {
int i;
for (i = 0; i < ZSWAP_NR_ZPOOLS; i++)
- total += zpool_get_total_size(pool->zpools[i]);
+ total += zpool_get_total_pages(pool->zpools[i]);
}
rcu_read_unlock();
- return total >> PAGE_SHIFT;
+ return total;
}
/*********************************