From: David Sterba <dsterba@suse.com>
Date: Tue, 8 Nov 2016 16:18:35 +0000 (+0100)
Subject: btrfs: reada, remove pointless BUG_ON check for fs_info
X-Git-Tag: v4.10-rc1~68^2~24^2~31
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b917bb387812f9abb81fc842e4c3b3ec727e10cf;p=karo-tx-linux.git

btrfs: reada, remove pointless BUG_ON check for fs_info

We dereference fs_info several times, besides that post-mount functions
should never see a NULL fs_info.

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

diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 380ab6629e90..f0beb63a6d82 100644
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -439,7 +439,6 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root,
 				/* ignore whether the entry was inserted */
 				radix_tree_delete(&dev->reada_extents, index);
 			}
-			BUG_ON(fs_info == NULL);
 			radix_tree_delete(&fs_info->reada_tree, index);
 			spin_unlock(&fs_info->reada_lock);
 			btrfs_dev_replace_unlock(&fs_info->dev_replace, 0);