linux-kernel - [PATCHv4 6/6] zram: reshuffle zram_free

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Message-ID: <20240912070413.4179924-7-senozhatsky@chromium.org>
Date: Thu, 12 Sep 2024 16:02:21 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: [PATCHv4 6/6] zram: reshuffle zram_free_page() flags operations

Drop some redundant zram_test_flag() calls and re-order
zram_clear_flag() calls.  Plus two small trivial coding
style fixes.  No functional changes.

Signed-off-by: Sergey Senozhatsky <senozhatsky@...omium.org>
---
 drivers/block/zram/zram_drv.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index e48e2deec685..8f01dc1fc796 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1499,20 +1499,17 @@ static void zram_free_page(struct zram *zram, size_t index)
 #ifdef CONFIG_ZRAM_TRACK_ENTRY_ACTIME
 	zram->table[index].ac_time = 0;
 #endif
-	if (zram_test_flag(zram, index, ZRAM_IDLE))
-		zram_clear_flag(zram, index, ZRAM_IDLE);
+
+	zram_clear_flag(zram, index, ZRAM_IDLE);
+	zram_clear_flag(zram, index, ZRAM_INCOMPRESSIBLE);
+	zram_clear_flag(zram, index, ZRAM_PP_SLOT);
+	zram_set_priority(zram, index, 0);
 
 	if (zram_test_flag(zram, index, ZRAM_HUGE)) {
 		zram_clear_flag(zram, index, ZRAM_HUGE);
 		atomic64_dec(&zram->stats.huge_pages);
 	}
 
-	if (zram_test_flag(zram, index, ZRAM_INCOMPRESSIBLE))
-		zram_clear_flag(zram, index, ZRAM_INCOMPRESSIBLE);
-
-	zram_set_priority(zram, index, 0);
-	zram_clear_flag(zram, index, ZRAM_PP_SLOT);
-
 	if (zram_test_flag(zram, index, ZRAM_WB)) {
 		zram_clear_flag(zram, index, ZRAM_WB);
 		free_block_bdev(zram, zram_get_element(zram, index));
@@ -1536,13 +1533,12 @@ static void zram_free_page(struct zram *zram, size_t index)
 	zs_free(zram->mem_pool, handle);
 
 	atomic64_sub(zram_get_obj_size(zram, index),
-			&zram->stats.compr_data_size);
+		     &zram->stats.compr_data_size);
 out:
 	atomic64_dec(&zram->stats.pages_stored);
 	zram_set_handle(zram, index, 0);
 	zram_set_obj_size(zram, index, 0);
-	WARN_ON_ONCE(zram->table[index].flags &
-		~(1UL << ZRAM_UNDER_WB));
+	WARN_ON_ONCE(zram->table[index].flags & ~(1UL << ZRAM_UNDER_WB));
 }
 
 /*
-- 
2.46.0.598.g6f2099f65c-goog