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Btrfs: remove unnecessary code of stripe_index assignment in __btrfs_map_block 

stripe_index's value was set again in latter line:
stripe_index = 0;

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Zhao Lei 2014-11-13 11:45:40 +08:00 committed by Miao Xie
parent f90523d1aa
commit 6de6565075
1 changed files with 1 additions and 3 deletions
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4
fs/btrfs/volumes.c
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@ -5166,9 +5166,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
/* push stripe_nr back to the start of the full stripe */
stripe_nr = raid56_full_stripe_start;
do_div(stripe_nr, stripe_len);
stripe_index = do_div(stripe_nr, nr_data_stripes(map));
do_div(stripe_nr, stripe_len * nr_data_stripes(map));
/* RAID[56] write or recovery. Return all stripes */
num_stripes = map->num_stripes;