btrfs: Make btrfs_ino take a struct btrfs_inode

Currently btrfs_ino takes a struct inode and this causes a lot of
internal btrfs functions which consume this ino to take a VFS inode,
rather than btrfs' own struct btrfs_inode. In order to fix this "leak"
of VFS structs into the internals of btrfs first it's necessary to
eliminate all uses of struct inode for the purpose of inode. This patch
does that by using BTRFS_I to convert an inode to btrfs_inode. With
this problem eliminated subsequent patches will start eliminating the
passing of struct inode altogether, eventually resulting in a lot cleaner
code.

Signed-off-by: Nikolay Borisov <n.borisov.lkml@gmail.com>
[ fix btrfs_get_extent tracepoint prototype ]
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 1a8fa46..4fed080 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -224,16 +224,16 @@ static inline void btrfs_insert_inode_hash(struct inode *inode)
 	__insert_inode_hash(inode, h);
 }
 
-static inline u64 btrfs_ino(struct inode *inode)
+static inline u64 btrfs_ino(struct btrfs_inode *inode)
 {
-	u64 ino = BTRFS_I(inode)->location.objectid;
+	u64 ino = inode->location.objectid;
 
 	/*
 	 * !ino: btree_inode
 	 * type == BTRFS_ROOT_ITEM_KEY: subvol dir
 	 */
-	if (!ino || BTRFS_I(inode)->location.type == BTRFS_ROOT_ITEM_KEY)
-		ino = inode->i_ino;
+	if (!ino || inode->location.type == BTRFS_ROOT_ITEM_KEY)
+		ino = inode->vfs_inode.i_ino;
 	return ino;
 }
 
@@ -248,7 +248,7 @@ static inline bool btrfs_is_free_space_inode(struct inode *inode)
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 
 	if (root == root->fs_info->tree_root &&
-	    btrfs_ino(inode) != BTRFS_BTREE_INODE_OBJECTID)
+	    btrfs_ino(BTRFS_I(inode)) != BTRFS_BTREE_INODE_OBJECTID)
 		return true;
 	if (BTRFS_I(inode)->location.objectid == BTRFS_FREE_INO_OBJECTID)
 		return true;