btrfs: remove unused variables from extent_io.c

Remove unused variables:
* tree from end_bio_extent_writepage,
* item from extent_fiemap.

Signed-off-by: Valentina Giusti <valentina.giusti@microon.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ff43802a7c886088e37c5c1c16427f2b522cad30..d97250a4e8e6f34a0600d0e4ff5a82bf76acdff1 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2333,13 +2333,11 @@ int end_extent_writepage(struct page *page, int err, u64 start, u64 end)
 static void end_bio_extent_writepage(struct bio *bio, int err)
 {
        struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
-       struct extent_io_tree *tree;
        u64 start;
        u64 end;
 
        do {
                struct page *page = bvec->bv_page;
-               tree = &BTRFS_I(page->mapping->host)->io_tree;
 
                /* We always issue full-page reads, but if some block
                 * in a page fails to read, blk_update_request() will
@@ -4082,12 +4080,10 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
        struct extent_map *em = NULL;
        struct extent_state *cached_state = NULL;
        struct btrfs_path *path;
-       struct btrfs_file_extent_item *item;
        int end = 0;
        u64 em_start = 0;
        u64 em_len = 0;
        u64 em_end = 0;
-       unsigned long emflags;
 
        if (len == 0)
                return -EINVAL;
@@ -4112,8 +4108,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
        }
        WARN_ON(!ret);
        path->slots[0]--;
-       item = btrfs_item_ptr(path->nodes[0], path->slots[0],
-                             struct btrfs_file_extent_item);
        btrfs_item_key_to_cpu(path->nodes[0], &found_key, path->slots[0]);
        found_type = btrfs_key_type(&found_key);
 
@@ -4181,7 +4175,6 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
                        offset_in_extent = em_start - em->start;
                em_end = extent_map_end(em);
                em_len = em_end - em_start;
-               emflags = em->flags;
                disko = 0;
                flags = 0;