linux-kernel - [PATCH 02/12] mm/swap_state.c: optimize the code in clear_shadow_from_swap

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Message-ID: <20250205092721.9395-3-bhe@redhat.com>
Date: Wed,  5 Feb 2025 17:27:11 +0800
From: Baoquan He <bhe@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: linux-mm@...ck.org,
	akpm@...ux-foundation.org,
	ryncsn@...il.com,
	chrisl@...nel.org,
	Baoquan He <bhe@...hat.com>
Subject: [PATCH 02/12] mm/swap_state.c: optimize the code in clear_shadow_from_swap_cache()

Use ALIGN to achieve the same effect and simplify the code.

Signed-off-by: Baoquan He <bhe@...hat.com>
---
 mm/swap_state.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/swap_state.c b/mm/swap_state.c
index 59acb55174c8..d7cbf5bb2450 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -270,9 +270,7 @@ void clear_shadow_from_swap_cache(int type, unsigned long begin,
 		xa_unlock_irq(&address_space->i_pages);
 
 		/* search the next swapcache until we meet end */
-		curr >>= SWAP_ADDRESS_SPACE_SHIFT;
-		curr++;
-		curr <<= SWAP_ADDRESS_SPACE_SHIFT;
+		curr = ALIGN((curr + 1), SWAP_ADDRESS_SPACE_PAGES);
 		if (curr > end)
 			break;
 	}
-- 
2.41.0