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ocfs2: Create ocfs2_xattr_value_buf.

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When an ocfs2 extended attribute is large enough to require its own
allocation tree, we root it with an ocfs2_xattr_value_root.  However,
these roots can be a part of inodes, xattr blocks, or xattr buckets.
Thus, they need a different journal access function for each container.

We wrap the bh, its journal access function, and the value root (xv) in
a structure called ocfs2_xattr_valu_buf.  This is a package that can
be passed around.  In this first pass, we simply pass it to the
extent tree code.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Joel Becker
2008-12-09 14:24:33 -08:00
committed by Mark Fasheh
parent 4d0e214ee8
commit 2a50a743bd
4 changed files with 49 additions and 28 deletions
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25
fs/ocfs2/alloc.c
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@@ -48,6 +48,7 @@
#include "file.h"
#include "super.h"
#include "uptodate.h"
#include "xattr.h"
#include "buffer_head_io.h"
@@ -207,36 +208,33 @@ static void ocfs2_dinode_fill_root_el(struct ocfs2_extent_tree *et)
static void ocfs2_xattr_value_fill_root_el(struct ocfs2_extent_tree *et)
{
struct ocfs2_xattr_value_root *xv = et->et_object;
struct ocfs2_xattr_value_buf *vb = et->et_object;
et->et_root_el = &xv->xr_list;
et->et_root_el = &vb->vb_xv->xr_list;
}
static void ocfs2_xattr_value_set_last_eb_blk(struct ocfs2_extent_tree *et,
u64 blkno)
{
struct ocfs2_xattr_value_root *xv =
(struct ocfs2_xattr_value_root *)et->et_object;
struct ocfs2_xattr_value_buf *vb = et->et_object;
xv->xr_last_eb_blk = cpu_to_le64(blkno);
vb->vb_xv->xr_last_eb_blk = cpu_to_le64(blkno);
}
static u64 ocfs2_xattr_value_get_last_eb_blk(struct ocfs2_extent_tree *et)
{
struct ocfs2_xattr_value_root *xv =
(struct ocfs2_xattr_value_root *) et->et_object;
struct ocfs2_xattr_value_buf *vb = et->et_object;
return le64_to_cpu(xv->xr_last_eb_blk);
return le64_to_cpu(vb->vb_xv->xr_last_eb_blk);
}
static void ocfs2_xattr_value_update_clusters(struct inode *inode,
struct ocfs2_extent_tree *et,
u32 clusters)
{
struct ocfs2_xattr_value_root *xv =
(struct ocfs2_xattr_value_root *)et->et_object;
struct ocfs2_xattr_value_buf *vb = et->et_object;
le32_add_cpu(&xv->xr_clusters, clusters);
le32_add_cpu(&vb->vb_xv->xr_clusters, clusters);
}
static struct ocfs2_extent_tree_operations ocfs2_xattr_value_et_ops = {
@@ -334,10 +332,9 @@ void ocfs2_init_xattr_tree_extent_tree(struct ocfs2_extent_tree *et,
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_xattr_value_buf *vb)
{
__ocfs2_init_extent_tree(et, inode, bh, ocfs2_journal_access, xv,
__ocfs2_init_extent_tree(et, inode, vb->vb_bh, vb->vb_access, vb,
&ocfs2_xattr_value_et_ops);
}