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From: Gao Xiang via Linux-erofs <linux-erofs@lists.ozlabs.org>
To: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-erofs@lists.ozlabs.org, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 5.4.y] erofs: correct the remaining shrink objects
Date: Tue, 14 Apr 2020 23:37:00 +0800
Message-ID: <20200414153700.28802-1-hsiangkao@aol.com> (raw)
In-Reply-To: <20200414153700.28802-1-hsiangkao.ref@aol.com>

From: Gao Xiang <gaoxiang25@huawei.com>

commit 9d5a09c6f3b5fb85af20e3a34827b5d27d152b34 upstream.

The remaining count should not include successful
shrink attempts.

Fixes: e7e9a307be9d ("staging: erofs: introduce workstation for decompression")
Cc: <stable@vger.kernel.org> # 4.19+
Link: https://lore.kernel.org/r/20200226081008.86348-1-gaoxiang25@huawei.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
---

trivial adaption, build verified.

 fs/erofs/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index d92b3e753a6f..3e28fd082df0 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -294,7 +294,7 @@ static unsigned long erofs_shrink_scan(struct shrinker *shrink,
 		spin_unlock(&erofs_sb_list_lock);
 		sbi->shrinker_run_no = run_no;
 
-		freed += erofs_shrink_workstation(sbi, nr, false);
+		freed += erofs_shrink_workstation(sbi, nr - freed, false);
 
 		spin_lock(&erofs_sb_list_lock);
 		/* Get the next list element before we move this one */
-- 
2.24.0


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