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ext4: remove check for zero nr_to_scan in ext4_es_scan()

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commit e5e7010e5444d923e4091cafff61d05f2d19cada upstream.

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: 1ab6c4997e ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhang Yi 2021-05-22 18:30:44 +08:00 committed by Greg Kroah-Hartman
parent 2338dc5d32
commit cc0458bcd2
1 changed files with 0 additions and 3 deletions
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fs/ext4/extents_status.c
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@ -1080,9 +1080,6 @@ 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);
ret = percpu_counter_read_positive(&sbi->s_es_stats.es_stats_shk_cnt);