ocfs2: Pass ocfs2_caching_info to ocfs2_read_extent_block().

extent blocks belong to btrees on more than just inodes, so we want to
pass the ocfs2_caching_info structure directly to
ocfs2_read_extent_block().  A number of places in alloc.c can now drop
struct inode from their argument list.

Signed-off-by: Joel Becker <joel.becker@oracle.com>

1 files changed, 20 insertions, 18 deletions

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index a26294caf1cf..1ff13d3958dd 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -854,13 +854,13 @@ static int ocfs2_validate_extent_block(struct super_block *sb,
         return 0;
 }
 
-int ocfs2_read_extent_block(struct inode *inode, u64 eb_blkno,
+int ocfs2_read_extent_block(struct ocfs2_caching_info *ci, u64 eb_blkno,
                             struct buffer_head **bh)
 {
         int rc;
         struct buffer_head *tmp = *bh;
 
-        rc = ocfs2_read_block(INODE_CACHE(inode), eb_blkno, &tmp,
+        rc = ocfs2_read_block(ci, eb_blkno, &tmp,
                               ocfs2_validate_extent_block);
 
         /* If ocfs2_read_block() got us a new bh, pass it up. */
@@ -875,7 +875,6 @@ int ocfs2_read_extent_block(struct inode *inode, u64 eb_blkno,
  * How many free extents have we got before we need more meta data?
  */
 int ocfs2_num_free_extents(struct ocfs2_super *osb,
-                           struct inode *inode,
                            struct ocfs2_extent_tree *et)
 {
         int retval;
@@ -890,7 +889,8 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
         last_eb_blk = ocfs2_et_get_last_eb_blk(et);
 
         if (last_eb_blk) {
-                retval = ocfs2_read_extent_block(inode, last_eb_blk, &eb_bh);
+                retval = ocfs2_read_extent_block(et->et_ci, last_eb_blk,
+                                                 &eb_bh);
                 if (retval < 0) {
                         mlog_errno(retval);
                         goto bail;
@@ -1382,7 +1382,6 @@ bail:
  * return status < 0 indicates an error.
  */
 static int ocfs2_find_branch_target(struct ocfs2_super *osb,
-                                    struct inode *inode,
                                     struct ocfs2_extent_tree *et,
                                     struct buffer_head **target_bh)
 {
@@ -1401,19 +1400,21 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
 
         while(le16_to_cpu(el->l_tree_depth) > 1) {
                 if (le16_to_cpu(el->l_next_free_rec) == 0) {
-                        ocfs2_error(inode->i_sb, "Dinode %llu has empty "
+                        ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
+                                    "Owner %llu has empty "
                                     "extent list (next_free_rec == 0)",
-                                    (unsigned long long)OCFS2_I(inode)->ip_blkno);
+                                    (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci));
                         status = -EIO;
                         goto bail;
                 }
                 i = le16_to_cpu(el->l_next_free_rec) - 1;
                 blkno = le64_to_cpu(el->l_recs[i].e_blkno);
                 if (!blkno) {
-                        ocfs2_error(inode->i_sb, "Dinode %llu has extent "
+                        ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
+                                    "Owner %llu has extent "
                                     "list where extent # %d has no physical "
                                     "block start",
-                                    (unsigned long long)OCFS2_I(inode)->ip_blkno, i);
+                                    (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci), i);
                         status = -EIO;
                         goto bail;
                 }
@@ -1421,7 +1422,7 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
                 brelse(bh);
                 bh = NULL;
 
-                status = ocfs2_read_extent_block(inode, blkno, &bh);
+                status = ocfs2_read_extent_block(et->et_ci, blkno, &bh);
                 if (status < 0) {
                         mlog_errno(status);
                         goto bail;
@@ -1475,7 +1476,7 @@ static int ocfs2_grow_tree(struct inode *inode, handle_t *handle,
 
         BUG_ON(meta_ac == NULL);
 
-        shift = ocfs2_find_branch_target(osb, inode, et, &bh);
+        shift = ocfs2_find_branch_target(osb, et, &bh);
         if (shift < 0) {
                 ret = shift;
                 mlog_errno(ret);
@@ -1780,7 +1781,7 @@ static int __ocfs2_find_path(struct inode *inode,
 
                 brelse(bh);
                 bh = NULL;
-                ret = ocfs2_read_extent_block(inode, blkno, &bh);
+                ret = ocfs2_read_extent_block(INODE_CACHE(inode), blkno, &bh);
                 if (ret) {
                         mlog_errno(ret);
                         goto out;
@@ -3032,7 +3033,8 @@ static int ocfs2_remove_rightmost_path(struct inode *inode, handle_t *handle,
                 goto out;
         }
 
-        ret = ocfs2_find_cpos_for_left_leaf(inode->i_sb, path, &cpos);
+        ret = ocfs2_find_cpos_for_left_leaf(ocfs2_metadata_cache_get_super(et->et_ci),
+                                            path, &cpos);
         if (ret) {
                 mlog_errno(ret);
                 goto out;
@@ -4557,7 +4559,7 @@ static int ocfs2_figure_insert_type(struct inode *inode,
                  * ocfs2_figure_insert_type() and ocfs2_add_branch()
                  * may want it later.
                  */
-                ret = ocfs2_read_extent_block(inode,
+                ret = ocfs2_read_extent_block(et->et_ci,
                                               ocfs2_et_get_last_eb_blk(et),
                                               &bh);
                 if (ret) {
@@ -4760,7 +4762,7 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb,
         if (mark_unwritten)
                 flags = OCFS2_EXT_UNWRITTEN;
 
-        free_extents = ocfs2_num_free_extents(osb, inode, et);
+        free_extents = ocfs2_num_free_extents(osb, et);
         if (free_extents < 0) {
                 status = free_extents;
                 mlog_errno(status);
@@ -5048,7 +5050,7 @@ static int __ocfs2_mark_extent_written(struct inode *inode,
         if (path->p_tree_depth) {
                 struct ocfs2_extent_block *eb;
 
-                ret = ocfs2_read_extent_block(inode,
+                ret = ocfs2_read_extent_block(et->et_ci,
                                               ocfs2_et_get_last_eb_blk(et),
                                               &last_eb_bh);
                 if (ret) {
@@ -5203,7 +5205,7 @@ static int ocfs2_split_tree(struct inode *inode, struct ocfs2_extent_tree *et,
 
         depth = path->p_tree_depth;
         if (depth > 0) {
-                ret = ocfs2_read_extent_block(inode,
+                ret = ocfs2_read_extent_block(et->et_ci,
                                               ocfs2_et_get_last_eb_blk(et),
                                               &last_eb_bh);
                 if (ret < 0) {
@@ -7447,7 +7449,7 @@ int ocfs2_prepare_truncate(struct ocfs2_super *osb,
         ocfs2_init_dealloc_ctxt(&(*tc)->tc_dealloc);
 
         if (fe->id2.i_list.l_tree_depth) {
-                status = ocfs2_read_extent_block(inode,
+                status = ocfs2_read_extent_block(INODE_CACHE(inode),
                                                  le64_to_cpu(fe->i_last_eb_blk),
                                                  &last_eb_bh);
                 if (status < 0) {