linux-kernel - [PATCH 5.5 118/257] erofs: correct the remaining shrink objects

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Message-Id: <20200416131341.015978623@linuxfoundation.org>
Date:   Thu, 16 Apr 2020 15:22:49 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chao Yu <yuchao0@...wei.com>,
        Gao Xiang <gaoxiang25@...wei.com>
Subject: [PATCH 5.5 118/257] erofs: correct the remaining shrink objects

From: Gao Xiang <gaoxiang25@...wei.com>

commit 9d5a09c6f3b5fb85af20e3a34827b5d27d152b34 upstream.

The remaining count should not include successful
shrink attempts.

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

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

--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -293,7 +293,7 @@ static unsigned long erofs_shrink_scan(s
 		spin_unlock(&erofs_sb_list_lock);
 		sbi->shrinker_run_no = run_no;
 
-		freed += erofs_shrink_workstation(sbi, nr);
+		freed += erofs_shrink_workstation(sbi, nr - freed);
 
 		spin_lock(&erofs_sb_list_lock);
 		/* Get the next list element before we move this one */