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authorJoel Becker <joel.becker@oracle.com>2008-08-20 19:57:27 -0400
committerMark Fasheh <mfasheh@suse.com>2008-10-13 19:57:04 -0400
commitea5efa151265a743f48e3d371992a0100d73a0eb (patch)
tree5e3688b0882271210b524564f5b6b42e2813f32c /fs/ocfs2/alloc.c
parentdc0ce61af418305afa7e0d05d86ab334e0daabf7 (diff)
ocfs2: Make 'private' into 'object' on ocfs2_extent_tree.
The 'private' pointer was a way to store off xattr values, which don't live at a set place in the bh. But the concept of "the object containing the extent tree" is much more generic. For an inode it's the struct ocfs2_dinode, for an xattr value its the value. Let's save off the 'object' at all times. If NULL is passed to ocfs2_get_extent_tree(), 'object' is set to bh->b_data; Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/alloc.c')
-rw-r--r--fs/ocfs2/alloc.c62
1 files changed, 29 insertions, 33 deletions
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index c200d3321689..4cefcb6a47a5 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -79,15 +79,14 @@ struct ocfs2_extent_tree {
79 struct ocfs2_extent_tree_operations *et_ops; 79 struct ocfs2_extent_tree_operations *et_ops;
80 struct buffer_head *et_root_bh; 80 struct buffer_head *et_root_bh;
81 struct ocfs2_extent_list *et_root_el; 81 struct ocfs2_extent_list *et_root_el;
82 void *et_private; 82 void *et_object;
83 unsigned int et_max_leaf_clusters; 83 unsigned int et_max_leaf_clusters;
84}; 84};
85 85
86static void ocfs2_dinode_set_last_eb_blk(struct ocfs2_extent_tree *et, 86static void ocfs2_dinode_set_last_eb_blk(struct ocfs2_extent_tree *et,
87 u64 blkno) 87 u64 blkno)
88{ 88{
89 struct ocfs2_dinode *di = 89 struct ocfs2_dinode *di = et->et_object;
90 (struct ocfs2_dinode *)et->et_root_bh->b_data;
91 90
92 BUG_ON(et->et_type != OCFS2_DINODE_EXTENT); 91 BUG_ON(et->et_type != OCFS2_DINODE_EXTENT);
93 di->i_last_eb_blk = cpu_to_le64(blkno); 92 di->i_last_eb_blk = cpu_to_le64(blkno);
@@ -95,8 +94,7 @@ static void ocfs2_dinode_set_last_eb_blk(struct ocfs2_extent_tree *et,
95 94
96static u64 ocfs2_dinode_get_last_eb_blk(struct ocfs2_extent_tree *et) 95static u64 ocfs2_dinode_get_last_eb_blk(struct ocfs2_extent_tree *et)
97{ 96{
98 struct ocfs2_dinode *di = 97 struct ocfs2_dinode *di = et->et_object;
99 (struct ocfs2_dinode *)et->et_root_bh->b_data;
100 98
101 BUG_ON(et->et_type != OCFS2_DINODE_EXTENT); 99 BUG_ON(et->et_type != OCFS2_DINODE_EXTENT);
102 return le64_to_cpu(di->i_last_eb_blk); 100 return le64_to_cpu(di->i_last_eb_blk);
@@ -106,8 +104,7 @@ static void ocfs2_dinode_update_clusters(struct inode *inode,
106 struct ocfs2_extent_tree *et, 104 struct ocfs2_extent_tree *et,
107 u32 clusters) 105 u32 clusters)
108{ 106{
109 struct ocfs2_dinode *di = 107 struct ocfs2_dinode *di = et->et_object;
110 (struct ocfs2_dinode *)et->et_root_bh->b_data;
111 108
112 le32_add_cpu(&di->i_clusters, clusters); 109 le32_add_cpu(&di->i_clusters, clusters);
113 spin_lock(&OCFS2_I(inode)->ip_lock); 110 spin_lock(&OCFS2_I(inode)->ip_lock);
@@ -123,7 +120,7 @@ static int ocfs2_dinode_sanity_check(struct inode *inode,
123 120
124 BUG_ON(et->et_type != OCFS2_DINODE_EXTENT); 121 BUG_ON(et->et_type != OCFS2_DINODE_EXTENT);
125 122
126 di = (struct ocfs2_dinode *)et->et_root_bh->b_data; 123 di = et->et_object;
127 if (!OCFS2_IS_VALID_DINODE(di)) { 124 if (!OCFS2_IS_VALID_DINODE(di)) {
128 ret = -EIO; 125 ret = -EIO;
129 ocfs2_error(inode->i_sb, 126 ocfs2_error(inode->i_sb,
@@ -145,7 +142,7 @@ static void ocfs2_xattr_value_set_last_eb_blk(struct ocfs2_extent_tree *et,
145 u64 blkno) 142 u64 blkno)
146{ 143{
147 struct ocfs2_xattr_value_root *xv = 144 struct ocfs2_xattr_value_root *xv =
148 (struct ocfs2_xattr_value_root *)et->et_private; 145 (struct ocfs2_xattr_value_root *)et->et_object;
149 146
150 xv->xr_last_eb_blk = cpu_to_le64(blkno); 147 xv->xr_last_eb_blk = cpu_to_le64(blkno);
151} 148}
@@ -153,7 +150,7 @@ static void ocfs2_xattr_value_set_last_eb_blk(struct ocfs2_extent_tree *et,
153static u64 ocfs2_xattr_value_get_last_eb_blk(struct ocfs2_extent_tree *et) 150static u64 ocfs2_xattr_value_get_last_eb_blk(struct ocfs2_extent_tree *et)
154{ 151{
155 struct ocfs2_xattr_value_root *xv = 152 struct ocfs2_xattr_value_root *xv =
156 (struct ocfs2_xattr_value_root *) et->et_private; 153 (struct ocfs2_xattr_value_root *) et->et_object;
157 154
158 return le64_to_cpu(xv->xr_last_eb_blk); 155 return le64_to_cpu(xv->xr_last_eb_blk);
159} 156}
@@ -163,7 +160,7 @@ static void ocfs2_xattr_value_update_clusters(struct inode *inode,
163 u32 clusters) 160 u32 clusters)
164{ 161{
165 struct ocfs2_xattr_value_root *xv = 162 struct ocfs2_xattr_value_root *xv =
166 (struct ocfs2_xattr_value_root *)et->et_private; 163 (struct ocfs2_xattr_value_root *)et->et_object;
167 164
168 le32_add_cpu(&xv->xr_clusters, clusters); 165 le32_add_cpu(&xv->xr_clusters, clusters);
169} 166}
@@ -184,8 +181,7 @@ static struct ocfs2_extent_tree_operations ocfs2_xattr_et_ops = {
184static void ocfs2_xattr_tree_set_last_eb_blk(struct ocfs2_extent_tree *et, 181static void ocfs2_xattr_tree_set_last_eb_blk(struct ocfs2_extent_tree *et,
185 u64 blkno) 182 u64 blkno)
186{ 183{
187 struct ocfs2_xattr_block *xb = 184 struct ocfs2_xattr_block *xb = et->et_object;
188 (struct ocfs2_xattr_block *) et->et_root_bh->b_data;
189 struct ocfs2_xattr_tree_root *xt = &xb->xb_attrs.xb_root; 185 struct ocfs2_xattr_tree_root *xt = &xb->xb_attrs.xb_root;
190 186
191 xt->xt_last_eb_blk = cpu_to_le64(blkno); 187 xt->xt_last_eb_blk = cpu_to_le64(blkno);
@@ -193,8 +189,7 @@ static void ocfs2_xattr_tree_set_last_eb_blk(struct ocfs2_extent_tree *et,
193 189
194static u64 ocfs2_xattr_tree_get_last_eb_blk(struct ocfs2_extent_tree *et) 190static u64 ocfs2_xattr_tree_get_last_eb_blk(struct ocfs2_extent_tree *et)
195{ 191{
196 struct ocfs2_xattr_block *xb = 192 struct ocfs2_xattr_block *xb = et->et_object;
197 (struct ocfs2_xattr_block *) et->et_root_bh->b_data;
198 struct ocfs2_xattr_tree_root *xt = &xb->xb_attrs.xb_root; 193 struct ocfs2_xattr_tree_root *xt = &xb->xb_attrs.xb_root;
199 194
200 return le64_to_cpu(xt->xt_last_eb_blk); 195 return le64_to_cpu(xt->xt_last_eb_blk);
@@ -204,8 +199,7 @@ static void ocfs2_xattr_tree_update_clusters(struct inode *inode,
204 struct ocfs2_extent_tree *et, 199 struct ocfs2_extent_tree *et,
205 u32 clusters) 200 u32 clusters)
206{ 201{
207 struct ocfs2_xattr_block *xb = 202 struct ocfs2_xattr_block *xb = et->et_object;
208 (struct ocfs2_xattr_block *)et->et_root_bh->b_data;
209 203
210 le32_add_cpu(&xb->xb_attrs.xb_root.xt_clusters, clusters); 204 le32_add_cpu(&xb->xb_attrs.xb_root.xt_clusters, clusters);
211} 205}
@@ -227,26 +221,28 @@ static void ocfs2_get_extent_tree(struct ocfs2_extent_tree *et,
227 struct inode *inode, 221 struct inode *inode,
228 struct buffer_head *bh, 222 struct buffer_head *bh,
229 enum ocfs2_extent_tree_type et_type, 223 enum ocfs2_extent_tree_type et_type,
230 void *private) 224 void *obj)
231{ 225{
232 et->et_type = et_type; 226 et->et_type = et_type;
233 get_bh(bh); 227 get_bh(bh);
234 et->et_root_bh = bh; 228 et->et_root_bh = bh;
235 et->et_private = private;
236 et->et_max_leaf_clusters = 0; 229 et->et_max_leaf_clusters = 0;
230 if (!obj)
231 obj = (void *)bh->b_data;
232 et->et_object = obj;
237 233
238 if (et_type == OCFS2_DINODE_EXTENT) { 234 if (et_type == OCFS2_DINODE_EXTENT) {
239 et->et_root_el = 235 et->et_root_el =
240 &((struct ocfs2_dinode *)bh->b_data)->id2.i_list; 236 &((struct ocfs2_dinode *)obj)->id2.i_list;
241 et->et_ops = &ocfs2_dinode_et_ops; 237 et->et_ops = &ocfs2_dinode_et_ops;
242 } else if (et_type == OCFS2_XATTR_VALUE_EXTENT) { 238 } else if (et_type == OCFS2_XATTR_VALUE_EXTENT) {
243 struct ocfs2_xattr_value_root *xv = 239 struct ocfs2_xattr_value_root *xv =
244 (struct ocfs2_xattr_value_root *) private; 240 (struct ocfs2_xattr_value_root *)obj;
245 et->et_root_el = &xv->xr_list; 241 et->et_root_el = &xv->xr_list;
246 et->et_ops = &ocfs2_xattr_et_ops; 242 et->et_ops = &ocfs2_xattr_et_ops;
247 } else if (et_type == OCFS2_XATTR_TREE_EXTENT) { 243 } else if (et_type == OCFS2_XATTR_TREE_EXTENT) {
248 struct ocfs2_xattr_block *xb = 244 struct ocfs2_xattr_block *xb =
249 (struct ocfs2_xattr_block *)bh->b_data; 245 (struct ocfs2_xattr_block *)obj;
250 et->et_root_el = &xb->xb_attrs.xb_root.xt_list; 246 et->et_root_el = &xb->xb_attrs.xb_root.xt_list;
251 et->et_ops = &ocfs2_xattr_tree_et_ops; 247 et->et_ops = &ocfs2_xattr_tree_et_ops;
252 et->et_max_leaf_clusters = ocfs2_clusters_for_bytes(inode->i_sb, 248 et->et_max_leaf_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
@@ -593,7 +589,7 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
593 struct inode *inode, 589 struct inode *inode,
594 struct buffer_head *root_bh, 590 struct buffer_head *root_bh,
595 enum ocfs2_extent_tree_type type, 591 enum ocfs2_extent_tree_type type,
596 void *private) 592 void *obj)
597{ 593{
598 int retval; 594 int retval;
599 struct ocfs2_extent_list *el = NULL; 595 struct ocfs2_extent_list *el = NULL;
@@ -617,7 +613,7 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
617 el = &fe->id2.i_list; 613 el = &fe->id2.i_list;
618 } else if (type == OCFS2_XATTR_VALUE_EXTENT) { 614 } else if (type == OCFS2_XATTR_VALUE_EXTENT) {
619 struct ocfs2_xattr_value_root *xv = 615 struct ocfs2_xattr_value_root *xv =
620 (struct ocfs2_xattr_value_root *) private; 616 (struct ocfs2_xattr_value_root *) obj;
621 617
622 last_eb_blk = le64_to_cpu(xv->xr_last_eb_blk); 618 last_eb_blk = le64_to_cpu(xv->xr_last_eb_blk);
623 el = &xv->xr_list; 619 el = &xv->xr_list;
@@ -4441,13 +4437,13 @@ int ocfs2_xattr_value_insert_extent(struct ocfs2_super *osb,
4441 u32 new_clusters, 4437 u32 new_clusters,
4442 u8 flags, 4438 u8 flags,
4443 struct ocfs2_alloc_context *meta_ac, 4439 struct ocfs2_alloc_context *meta_ac,
4444 void *private) 4440 void *obj)
4445{ 4441{
4446 int status; 4442 int status;
4447 struct ocfs2_extent_tree et; 4443 struct ocfs2_extent_tree et;
4448 4444
4449 ocfs2_get_extent_tree(&et, inode, root_bh, 4445 ocfs2_get_extent_tree(&et, inode, root_bh,
4450 OCFS2_XATTR_VALUE_EXTENT, private); 4446 OCFS2_XATTR_VALUE_EXTENT, obj);
4451 status = ocfs2_insert_extent(osb, handle, inode, root_bh, 4447 status = ocfs2_insert_extent(osb, handle, inode, root_bh,
4452 cpos, start_blk, new_clusters, 4448 cpos, start_blk, new_clusters,
4453 flags, meta_ac, &et); 4449 flags, meta_ac, &et);
@@ -4498,7 +4494,7 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb,
4498 struct ocfs2_alloc_context *meta_ac, 4494 struct ocfs2_alloc_context *meta_ac,
4499 enum ocfs2_alloc_restarted *reason_ret, 4495 enum ocfs2_alloc_restarted *reason_ret,
4500 enum ocfs2_extent_tree_type type, 4496 enum ocfs2_extent_tree_type type,
4501 void *private) 4497 void *obj)
4502{ 4498{
4503 int status = 0; 4499 int status = 0;
4504 int free_extents; 4500 int free_extents;
@@ -4513,7 +4509,7 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb,
4513 flags = OCFS2_EXT_UNWRITTEN; 4509 flags = OCFS2_EXT_UNWRITTEN;
4514 4510
4515 free_extents = ocfs2_num_free_extents(osb, inode, root_bh, type, 4511 free_extents = ocfs2_num_free_extents(osb, inode, root_bh, type,
4516 private); 4512 obj);
4517 if (free_extents < 0) { 4513 if (free_extents < 0) {
4518 status = free_extents; 4514 status = free_extents;
4519 mlog_errno(status); 4515 mlog_errno(status);
@@ -4575,7 +4571,7 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb,
4575 inode, root_bh, 4571 inode, root_bh,
4576 *logical_offset, 4572 *logical_offset,
4577 block, num_bits, flags, 4573 block, num_bits, flags,
4578 meta_ac, private); 4574 meta_ac, obj);
4579 if (status < 0) { 4575 if (status < 0) {
4580 mlog_errno(status); 4576 mlog_errno(status);
4581 goto leave; 4577 goto leave;
@@ -4857,7 +4853,7 @@ int ocfs2_mark_extent_written(struct inode *inode, struct buffer_head *root_bh,
4857 struct ocfs2_alloc_context *meta_ac, 4853 struct ocfs2_alloc_context *meta_ac,
4858 struct ocfs2_cached_dealloc_ctxt *dealloc, 4854 struct ocfs2_cached_dealloc_ctxt *dealloc,
4859 enum ocfs2_extent_tree_type et_type, 4855 enum ocfs2_extent_tree_type et_type,
4860 void *private) 4856 void *obj)
4861{ 4857{
4862 int ret, index; 4858 int ret, index;
4863 u64 start_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys); 4859 u64 start_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys);
@@ -4869,7 +4865,7 @@ int ocfs2_mark_extent_written(struct inode *inode, struct buffer_head *root_bh,
4869 mlog(0, "Inode %lu cpos %u, len %u, phys %u (%llu)\n", 4865 mlog(0, "Inode %lu cpos %u, len %u, phys %u (%llu)\n",
4870 inode->i_ino, cpos, len, phys, (unsigned long long)start_blkno); 4866 inode->i_ino, cpos, len, phys, (unsigned long long)start_blkno);
4871 4867
4872 ocfs2_get_extent_tree(&et, inode, root_bh, et_type, private); 4868 ocfs2_get_extent_tree(&et, inode, root_bh, et_type, obj);
4873 4869
4874 if (!ocfs2_writes_unwritten_extents(OCFS2_SB(inode->i_sb))) { 4870 if (!ocfs2_writes_unwritten_extents(OCFS2_SB(inode->i_sb))) {
4875 ocfs2_error(inode->i_sb, "Inode %llu has unwritten extents " 4871 ocfs2_error(inode->i_sb, "Inode %llu has unwritten extents "
@@ -5161,7 +5157,7 @@ int ocfs2_remove_extent(struct inode *inode, struct buffer_head *root_bh,
5161 struct ocfs2_alloc_context *meta_ac, 5157 struct ocfs2_alloc_context *meta_ac,
5162 struct ocfs2_cached_dealloc_ctxt *dealloc, 5158 struct ocfs2_cached_dealloc_ctxt *dealloc,
5163 enum ocfs2_extent_tree_type et_type, 5159 enum ocfs2_extent_tree_type et_type,
5164 void *private) 5160 void *obj)
5165{ 5161{
5166 int ret, index; 5162 int ret, index;
5167 u32 rec_range, trunc_range; 5163 u32 rec_range, trunc_range;
@@ -5170,7 +5166,7 @@ int ocfs2_remove_extent(struct inode *inode, struct buffer_head *root_bh,
5170 struct ocfs2_path *path = NULL; 5166 struct ocfs2_path *path = NULL;
5171 struct ocfs2_extent_tree et; 5167 struct ocfs2_extent_tree et;
5172 5168
5173 ocfs2_get_extent_tree(&et, inode, root_bh, et_type, private); 5169 ocfs2_get_extent_tree(&et, inode, root_bh, et_type, obj);
5174 5170
5175 ocfs2_extent_map_trunc(inode, 0); 5171 ocfs2_extent_map_trunc(inode, 0);
5176 5172