* [PATCH] Btrfs: fix wrong mirror number tuning
@ 2013-06-19 10:20 Miao Xie
0 siblings, 0 replies; only message in thread
From: Miao Xie @ 2013-06-19 10:20 UTC (permalink / raw)
To: linux-btrfs
Now reading the data from the target device of the replace operation is allowed,
so the mirror number that is greater than the stripes number of a chunk is valid,
we will tune it when we find there is no target device later. Fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
---
fs/btrfs/volumes.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index c58bf19..7789598 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4420,9 +4420,6 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
map = (struct map_lookup *)em->bdev;
offset = logical - em->start;
- if (mirror_num > map->num_stripes)
- mirror_num = 0;
-
stripe_len = map->stripe_len;
stripe_nr = offset;
/*
--
1.8.1.4
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2013-06-19 10:20 [PATCH] Btrfs: fix wrong mirror number tuning Miao Xie
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