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ocfs2: Change ocfs2_get_*_extent_tree() to ocfs2_init_*_extent_tree()

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The original get/put_extent_tree() functions held a reference on
et_root_bh.  However, every single caller already has a safe reference,
making the get/put cycle irrelevant.

We change ocfs2_get_*_extent_tree() to ocfs2_init_*_extent_tree().  It
no longer gets a reference on et_root_bh.  ocfs2_put_extent_tree() is
removed.  Callers now have a simpler init+use pattern.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Joel Becker
2008-08-22 12:46:09 -07:00
committed by Mark Fasheh
parent 1625f8ac15
commit 8d6220d6a7
6 changed files with 44 additions and 67 deletions
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26
fs/ocfs2/alloc.h
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@@ -41,7 +41,7 @@
*
* ocfs2_extent_tree becomes the first-class object for extent tree
* manipulation. Callers of the alloc.c code need to fill it via one of
* the ocfs2_get_*_extent_tree() operations below.
* the ocfs2_init_*_extent_tree() operations below.
*
* ocfs2_extent_tree contains info for the root of the b-tree, it must have a
* root ocfs2_extent_list and a root_bh so that they can be used in the b-tree
@@ -59,21 +59,19 @@ struct ocfs2_extent_tree {
};
/*
* ocfs2_*_get_extent_tree() will fill an ocfs2_extent_tree from the
* specified object buffer. The bh is referenced until
* ocfs2_put_extent_tree().
* ocfs2_init_*_extent_tree() will fill an ocfs2_extent_tree from the
* specified object buffer.
*/
void ocfs2_get_dinode_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh);
void ocfs2_get_xattr_tree_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh);
void ocfs2_get_xattr_value_extent_tree(struct ocfs2_extent_tree *et,
void ocfs2_init_dinode_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh);
void ocfs2_init_xattr_tree_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh,
struct ocfs2_xattr_value_root *xv);
void ocfs2_put_extent_tree(struct ocfs2_extent_tree *et);
struct buffer_head *bh);
void ocfs2_init_xattr_value_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh,
struct ocfs2_xattr_value_root *xv);
struct ocfs2_alloc_context;
int ocfs2_insert_extent(struct ocfs2_super *osb,