btrfs: remove unused member err from reada_extent

Seems to be unused since the initial commit, we ignore readahead errors
anyway, the full read will handle that if necessary.

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

diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index a17e775..ab852b8 100644 (file)
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -66,7 +66,6 @@ struct reada_extctl {
 struct reada_extent {
        u64                     logical;
        struct btrfs_key        top;
-       int                     err;
        struct list_head        extctl;
        int                     refcnt;
        spinlock_t              lock;