From 4e0c04ec3a304490a83d5c0355e64176acc9b4ba Mon Sep 17 00:00:00 2001
From: Guoju Fang <fangguoju@gmail.com>
Date: Thu, 25 Apr 2019 00:48:27 +0800
Subject: [PATCH] bcache: fix inaccurate result of unused buckets
Git-commit: 4e0c04ec3a304490a83d5c0355e64176acc9b4ba
Patch-mainline: v5.2-rc1
References: bsc#1140652
To get the amount of unused buckets in sysfs_priority_stats, the code
count the buckets which GC_SECTORS_USED is zero. It's correct and should
not be overwritten by the count of buckets which prio is zero.
Signed-off-by: Guoju Fang <fangguoju@gmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
drivers/md/bcache/sysfs.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 17bae9c14ca0..6cd44d3cf906 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -996,8 +996,6 @@ SHOW(__bch_cache)
!cached[n - 1])
--n;
- unused = ca->sb.nbuckets - n;
-
while (cached < p + n &&
*cached == BTREE_PRIO)
cached++, n--;
--
2.16.4