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From e5e7010e5444d923e4091cafff61d05f2d19cada Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Sat, 22 May 2021 18:30:44 +0800
Subject: [PATCH] ext4: remove check for zero nr_to_scan in ext4_es_scan()
Git-commit: e5e7010e5444d923e4091cafff61d05f2d19cada
Patch-mainline: v5.14-rc1
References: bsc#1189565

After converting fs shrinkers to new scan/count API, we are no longer
pass zero nr_to_scan parameter to detect the number of objects to free,
just remove this check.

Fixes: 1ab6c4997e04 ("fs: convert fs shrinkers to new scan/count API")
Cc: stable@vger.kernel.org # 3.12+
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210522103045.690103-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Acked-by: Jan Kara <jack@suse.cz>

---
 fs/ext4/extents_status.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 0a729027322d..db3cd70a72e4 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -1574,9 +1574,6 @@ static unsigned long ext4_es_scan(struct shrinker *shrink,
 	ret = percpu_counter_read_positive(&sbi->s_es_stats.es_stats_shk_cnt);
 	trace_ext4_es_shrink_scan_enter(sbi->s_sb, nr_to_scan, ret);
 
-	if (!nr_to_scan)
-		return ret;
-
 	nr_shrunk = __es_shrink(sbi, nr_to_scan, NULL);
 
 	trace_ext4_es_shrink_scan_exit(sbi->s_sb, nr_shrunk, ret);
-- 
2.26.2