[PATCH 5.4 151/232] erofs: correct the remaining shrink objects

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From: Gao Xiang <gaoxiang25@xxxxxxxxxx>

commit 9d5a09c6f3b5fb85af20e3a34827b5d27d152b34 upstream.

The remaining count should not include successful
shrink attempts.

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


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

--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -294,7 +294,7 @@ 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, 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 */





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