From: Chengming Zhou <zhouchengming@bytedance.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Nhat Pham <nphamcs@gmail.com>, Chris Li <chriscli@google.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Seth Jennings <sjenning@redhat.com>,
Dan Streetman <ddstreet@ieee.org>,
Vitaly Wool <vitaly.wool@konsulko.com>,
Yosry Ahmed <yosryahmed@google.com>
Cc: Nhat Pham <nphamcs@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Chengming Zhou <zhouchengming@bytedance.com>
Subject: [PATCH 4/5] mm/zswap: cleanup zswap_load()
Date: Wed, 13 Dec 2023 04:18:01 +0000 [thread overview]
Message-ID: <20231213-zswap-dstmem-v1-4-896763369d04@bytedance.com> (raw)
In-Reply-To: <20231213-zswap-dstmem-v1-0-896763369d04@bytedance.com>
After the common decompress part goes to __zswap_load(), we can cleanup
the zswap_load() a little.
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
---
mm/zswap.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/mm/zswap.c b/mm/zswap.c
index 2f095c919a5c..0476e1c553c2 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1765,7 +1765,6 @@ bool zswap_load(struct folio *folio)
struct zswap_tree *tree = zswap_trees[type];
struct zswap_entry *entry;
u8 *dst;
- bool ret;
VM_WARN_ON_ONCE(!folio_test_locked(folio));
@@ -1782,19 +1781,16 @@ bool zswap_load(struct folio *folio)
dst = kmap_local_page(page);
zswap_fill_page(dst, entry->value);
kunmap_local(dst);
- ret = true;
- goto stats;
+ } else {
+ __zswap_load(entry, page);
}
- __zswap_load(entry, page);
- ret = true;
-stats:
count_vm_event(ZSWPIN);
if (entry->objcg)
count_objcg_event(entry->objcg, ZSWPIN);
spin_lock(&tree->lock);
- if (ret && zswap_exclusive_loads_enabled) {
+ if (zswap_exclusive_loads_enabled) {
zswap_invalidate_entry(tree, entry);
folio_mark_dirty(folio);
} else if (entry->length) {
@@ -1804,7 +1800,7 @@ bool zswap_load(struct folio *folio)
zswap_entry_put(tree, entry);
spin_unlock(&tree->lock);
- return ret;
+ return true;
}
void zswap_invalidate(int type, pgoff_t offset)
--
b4 0.10.1
next prev parent reply other threads:[~2023-12-13 4:18 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-13 4:17 [PATCH 0/5] mm/zswap: dstmem reuse optimizations and cleanups Chengming Zhou
2023-12-13 4:17 ` [PATCH 1/5] mm/zswap: reuse dstmem when decompress Chengming Zhou
2023-12-13 23:24 ` Yosry Ahmed
2023-12-14 13:29 ` Chengming Zhou
2023-12-14 13:32 ` Yosry Ahmed
2023-12-14 14:42 ` Chengming Zhou
2023-12-14 18:24 ` Yosry Ahmed
2023-12-18 8:06 ` Chengming Zhou
2023-12-14 17:59 ` Chris Li
2023-12-14 18:26 ` Yosry Ahmed
2023-12-14 22:02 ` Chris Li
2023-12-14 20:33 ` Nhat Pham
2023-12-13 4:17 ` [PATCH 2/5] mm/zswap: change dstmem size to one page Chengming Zhou
2023-12-13 23:34 ` Yosry Ahmed
2023-12-14 0:18 ` Nhat Pham
2023-12-14 13:33 ` Chengming Zhou
2023-12-14 13:37 ` Yosry Ahmed
2023-12-14 13:57 ` Chengming Zhou
2023-12-14 15:03 ` Chengming Zhou
2023-12-14 18:34 ` Yosry Ahmed
2023-12-14 18:30 ` Yosry Ahmed
2023-12-14 20:29 ` Nhat Pham
2023-12-13 4:18 ` [PATCH 3/5] mm/zswap: refactor out __zswap_load() Chengming Zhou
2023-12-13 23:37 ` Yosry Ahmed
2023-12-14 0:52 ` Yosry Ahmed
2023-12-14 14:45 ` Chengming Zhou
2023-12-18 8:15 ` Chengming Zhou
2023-12-18 9:38 ` Yosry Ahmed
2023-12-13 4:18 ` Chengming Zhou [this message]
2023-12-14 0:56 ` [PATCH 4/5] mm/zswap: cleanup zswap_load() Yosry Ahmed
2023-12-13 4:18 ` [PATCH 5/5] mm/zswap: cleanup zswap_reclaim_entry() Chengming Zhou
2023-12-13 23:27 ` Nhat Pham
2023-12-14 1:02 ` Yosry Ahmed
2023-12-14 22:23 ` Andrew Morton
2023-12-14 22:41 ` Yosry Ahmed
2023-12-18 14:03 ` Johannes Weiner
2023-12-18 14:39 ` Yosry Ahmed
2023-12-18 14:58 ` Johannes Weiner
2023-12-18 20:52 ` Yosry Ahmed
2023-12-19 12:16 ` Chengming Zhou
2023-12-20 4:30 ` Johannes Weiner
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