btrfs: Fix warning "variable ‘blocksize’ set but not used"

Variable 'blocksize' in reada_walk_down() is not used since commit
d3e46fea1b1e ("btrfs: sink blocksize parameter to readahead_tree_block").
This patch simply removes this variable.

Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index bc266f6e9859ffe43e114f72ce09d6dcea687bc2..e9d60607a0bd70bcc29f38df25fe970938a61aa9 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -8464,7 +8464,6 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans,
        u64 refs;
        u64 flags;
        u32 nritems;
-       u32 blocksize;
        struct btrfs_key key;
        struct extent_buffer *eb;
        int ret;
@@ -8482,7 +8481,6 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans,
 
        eb = path->nodes[wc->level];
        nritems = btrfs_header_nritems(eb);
-       blocksize = root->nodesize;
 
        for (slot = path->slots[wc->level]; slot < nritems; slot++) {
                if (nread >= wc->reada_count)