From: David Sterba <dsterba@suse.com>
Date: Mon, 13 Feb 2017 14:05:33 +0000 (+0100)
Subject: btrfs: remove pointless rcu protection from btrfs_qgroup_inherit
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4ae8553c2d8811f41fe8d785646e90fd1580843f;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

btrfs: remove pointless rcu protection from btrfs_qgroup_inherit

There was never need for RCU protection around reading nodesize or other
fairly constant filesystem data.

Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index c6bf886f15b4..e1d0ab1f2ae0 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2189,9 +2189,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
 			goto out;
 		}
 
-		rcu_read_lock();
 		level_size = fs_info->nodesize;
-		rcu_read_unlock();
 	}
 
 	/*