From: Jeff Mahoney <je...@suse.com>
This patch converts the macros used to calculate various node
size limits to static inlines. That way we get type checking for free.
Signed-off-by: Jeff Mahoney <je...@suse.com>
---
fs/btrfs/ctree.h | 48 +++++++++++++++++++++++++++++++++---------------
1 file changed, 33 insertions(+), 15 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 1d3c4b5..95fe439 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -145,21 +145,6 @@ struct btrfs_header {
u8 level;
} __attribute__ ((__packed__));
-#define BTRFS_NODEPTRS_PER_BLOCK(r) (((r)->nodesize - \
- sizeof(struct btrfs_header)) / \
- sizeof(struct btrfs_key_ptr))
-#define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header))
-#define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->nodesize))
-#define BTRFS_MAX_ITEM_SIZE(r) \
- (BTRFS_LEAF_DATA_SIZE(r) - sizeof(struct btrfs_item))
-#define BTRFS_FILE_EXTENT_INLINE_DATA_START \
- (offsetof(struct btrfs_file_extent_item, disk_bytenr))
-#define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_MAX_ITEM_SIZE(r) - \
- BTRFS_FILE_EXTENT_INLINE_DATA_START)
-#define BTRFS_MAX_XATTR_SIZE(r) (BTRFS_MAX_ITEM_SIZE(r) - \
- sizeof(struct btrfs_dir_item))
-
-
/*
* this is a very generous portion of the super block, giving us
* room to translate 14 chunks with 3 stripes each.
@@ -1257,6 +1242,39 @@ struct btrfs_root {
atomic_t qgroup_meta_rsv;
};
+static inline u32 __BTRFS_LEAF_DATA_SIZE(u32 blocksize)
+{
+ return blocksize - sizeof(struct btrfs_header);
+}
+
+static inline u32 BTRFS_LEAF_DATA_SIZE(const struct btrfs_root *root)
+{
+ return __BTRFS_LEAF_DATA_SIZE(root->nodesize);
+}
+
+static inline u32 BTRFS_MAX_ITEM_SIZE(const struct btrfs_root *root)
+{
+ return BTRFS_LEAF_DATA_SIZE(root) - sizeof(struct btrfs_item);
+}
+
+static inline u32 BTRFS_NODEPTRS_PER_BLOCK(const struct btrfs_root *root)
+{
+ return BTRFS_LEAF_DATA_SIZE(root) / sizeof(struct btrfs_key_ptr);
+}
+
+#define BTRFS_FILE_EXTENT_INLINE_DATA_START \
+ (offsetof(struct btrfs_file_extent_item, disk_bytenr))
+static inline u32 BTRFS_MAX_INLINE_DATA_SIZE(const struct btrfs_root *root)
+{
+ return BTRFS_MAX_ITEM_SIZE(root) -
+ BTRFS_FILE_EXTENT_INLINE_DATA_START;
+}
+
+static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_root *root)
+{
+ return BTRFS_MAX_ITEM_SIZE(root) - sizeof(struct btrfs_dir_item);
+}
+
/*
* Flags for mount options.
*
--
2.7.1
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
