ocfs2: Create ocfs2_xattr_value_buf.
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>
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 7c2f4c9..123d378 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -581,21 +581,26 @@
handle_t *handle = ctxt->handle;
enum ocfs2_alloc_restarted why;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- u32 prev_clusters, logical_start = le32_to_cpu(xv->xr_clusters);
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = xattr_bh,
+ .vb_xv = xv,
+ .vb_access = ocfs2_journal_access,
+ };
+ u32 prev_clusters, logical_start = le32_to_cpu(vb.vb_xv->xr_clusters);
struct ocfs2_extent_tree et;
mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add);
- ocfs2_init_xattr_value_extent_tree(&et, inode, xattr_bh, xv);
+ ocfs2_init_xattr_value_extent_tree(&et, inode, &vb);
- status = ocfs2_journal_access(handle, inode, xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = vb.vb_access(handle, inode, vb.vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
}
- prev_clusters = le32_to_cpu(xv->xr_clusters);
+ prev_clusters = le32_to_cpu(vb.vb_xv->xr_clusters);
status = ocfs2_add_clusters_in_btree(osb,
inode,
&logical_start,
@@ -611,13 +616,13 @@
goto leave;
}
- status = ocfs2_journal_dirty(handle, xattr_bh);
+ status = ocfs2_journal_dirty(handle, vb.vb_bh);
if (status < 0) {
mlog_errno(status);
goto leave;
}
- clusters_to_add -= le32_to_cpu(xv->xr_clusters) - prev_clusters;
+ clusters_to_add -= le32_to_cpu(vb.vb_xv->xr_clusters) - prev_clusters;
/*
* We should have already allocated enough space before the transaction,
@@ -640,11 +645,16 @@
u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
handle_t *handle = ctxt->handle;
struct ocfs2_extent_tree et;
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = root_bh,
+ .vb_xv = xv,
+ .vb_access = ocfs2_journal_access,
+ };
- ocfs2_init_xattr_value_extent_tree(&et, inode, root_bh, xv);
+ ocfs2_init_xattr_value_extent_tree(&et, inode, &vb);
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = vb.vb_access(handle, inode, vb.vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -657,9 +667,9 @@
goto out;
}
- le32_add_cpu(&xv->xr_clusters, -len);
+ le32_add_cpu(&vb.vb_xv->xr_clusters, -len);
- ret = ocfs2_journal_dirty(handle, root_bh);
+ ret = ocfs2_journal_dirty(handle, vb.vb_bh);
if (ret) {
mlog_errno(ret);
goto out;