From: Zhao Lei <zhaolei@cn.fujitsu.com>
btrfs_item_ptr is just a type_cast wrapper of btrfs_item_ptr_offset().
We can use btrfs_item_ptr_offset() in btrfs_item_ptr() to avoid code
duplication.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
---
fs/btrfs/ctree.h | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 1111584..72228b2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1947,13 +1947,11 @@ static inline u32 btrfs_level_size(struct btrfs_root
*root, int level)
}
/* helper function to cast into the data area of the leaf. */
-#define btrfs_item_ptr(leaf, slot, type) \
- ((type *)(btrfs_leaf_data(leaf) + \
- btrfs_item_offset_nr(leaf, slot)))
-
#define btrfs_item_ptr_offset(leaf, slot) \
((unsigned long)(btrfs_leaf_data(leaf) + \
btrfs_item_offset_nr(leaf, slot)))
+#define btrfs_item_ptr(leaf, slot, type) \
+ ((type *)btrfs_item_ptr_offset(leaf, slot))
static inline struct dentry *fdentry(struct file *file)
{
--
1.6.5.2
--
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