zswap: track swapins from disk more accurately (fix)

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Link: https://lkml.kernel.org/r/20240806004518.3183562-1-nphamcs@gmail.com
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Takero Funaki <flintglass@gmail.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/page_io.c b/mm/page_io.c
index 0004c9fbf7e877a5666e408c7c56836c17ae73f7..aa190e3cb050f7a905d2701661451f279661a1e9 100644 (file)
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -524,9 +524,7 @@ void swap_read_folio(struct folio *folio, struct swap_iocb **plug)
                goto finish;
        }
 
-       /*
-        * We have to read the page from slower devices. Increase zswap protection.
-        */
+       /* We have to read from slower devices. Increase zswap protection. */
        zswap_folio_swapin(folio);
 
        if (data_race(sis->flags & SWP_FS_OPS)) {