nilfs2: get rid of nilfs_btree uses
This replaces all uses of nilfs_btree struct in implementation of
btree mapping with nilfs_bmap struct.
Name of local variable "btree" is kept not to bloat amount of change.
And, a part of local variables "bmap" is renamed to "btree" to uniform
naming rule.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index a2dc36c..81e8716 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -66,11 +66,10 @@
/*
* B-tree node operations
*/
-static int nilfs_btree_get_block(const struct nilfs_btree *btree, __u64 ptr,
+static int nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr,
struct buffer_head **bhp)
{
- struct address_space *btnc =
- &NILFS_BMAP_I((struct nilfs_bmap *)btree)->i_btnode_cache;
+ struct address_space *btnc = &NILFS_BMAP_I(btree)->i_btnode_cache;
struct buffer_head *bh;
int err;
@@ -92,11 +91,10 @@
return 0;
}
-static int nilfs_btree_get_new_block(const struct nilfs_btree *btree,
+static int nilfs_btree_get_new_block(const struct nilfs_bmap *btree,
__u64 ptr, struct buffer_head **bhp)
{
- struct address_space *btnc =
- &NILFS_BMAP_I((struct nilfs_bmap *)btree)->i_btnode_cache;
+ struct address_space *btnc = &NILFS_BMAP_I(btree)->i_btnode_cache;
struct buffer_head *bh;
bh = nilfs_btnode_create_block(btnc, ptr);
@@ -149,14 +147,14 @@
node->bn_nchildren = cpu_to_le16(nchildren);
}
-static inline int nilfs_btree_node_size(const struct nilfs_btree *btree)
+static inline int nilfs_btree_node_size(const struct nilfs_bmap *btree)
{
- return 1 << btree->bt_bmap.b_inode->i_blkbits;
+ return 1 << btree->b_inode->i_blkbits;
}
static inline int
nilfs_btree_node_nchildren_min(const struct nilfs_btree_node *node,
- const struct nilfs_btree *btree)
+ const struct nilfs_bmap *btree)
{
return nilfs_btree_node_root(node) ?
NILFS_BTREE_ROOT_NCHILDREN_MIN :
@@ -165,7 +163,7 @@
static inline int
nilfs_btree_node_nchildren_max(const struct nilfs_btree_node *node,
- const struct nilfs_btree *btree)
+ const struct nilfs_bmap *btree)
{
return nilfs_btree_node_root(node) ?
NILFS_BTREE_ROOT_NCHILDREN_MAX :
@@ -182,7 +180,7 @@
static inline __le64 *
nilfs_btree_node_dptrs(const struct nilfs_btree_node *node,
- const struct nilfs_btree *btree)
+ const struct nilfs_bmap *btree)
{
return (__le64 *)(nilfs_btree_node_dkeys(node) +
nilfs_btree_node_nchildren_max(node, btree));
@@ -201,20 +199,20 @@
}
static inline __u64
-nilfs_btree_node_get_ptr(const struct nilfs_btree *btree,
+nilfs_btree_node_get_ptr(const struct nilfs_bmap *btree,
const struct nilfs_btree_node *node, int index)
{
return le64_to_cpu(*(nilfs_btree_node_dptrs(node, btree) + index));
}
static inline void
-nilfs_btree_node_set_ptr(struct nilfs_btree *btree,
+nilfs_btree_node_set_ptr(struct nilfs_bmap *btree,
struct nilfs_btree_node *node, int index, __u64 ptr)
{
*(nilfs_btree_node_dptrs(node, btree) + index) = cpu_to_le64(ptr);
}
-static void nilfs_btree_node_init(struct nilfs_btree *btree,
+static void nilfs_btree_node_init(struct nilfs_bmap *btree,
struct nilfs_btree_node *node,
int flags, int level, int nchildren,
const __u64 *keys, const __u64 *ptrs)
@@ -236,7 +234,7 @@
}
/* Assume the buffer heads corresponding to left and right are locked. */
-static void nilfs_btree_node_move_left(struct nilfs_btree *btree,
+static void nilfs_btree_node_move_left(struct nilfs_bmap *btree,
struct nilfs_btree_node *left,
struct nilfs_btree_node *right,
int n)
@@ -265,7 +263,7 @@
}
/* Assume that the buffer heads corresponding to left and right are locked. */
-static void nilfs_btree_node_move_right(struct nilfs_btree *btree,
+static void nilfs_btree_node_move_right(struct nilfs_bmap *btree,
struct nilfs_btree_node *left,
struct nilfs_btree_node *right,
int n)
@@ -294,7 +292,7 @@
}
/* Assume that the buffer head corresponding to node is locked. */
-static void nilfs_btree_node_insert(struct nilfs_btree *btree,
+static void nilfs_btree_node_insert(struct nilfs_bmap *btree,
struct nilfs_btree_node *node,
__u64 key, __u64 ptr, int index)
{
@@ -318,7 +316,7 @@
}
/* Assume that the buffer head corresponding to node is locked. */
-static void nilfs_btree_node_delete(struct nilfs_btree *btree,
+static void nilfs_btree_node_delete(struct nilfs_bmap *btree,
struct nilfs_btree_node *node,
__u64 *keyp, __u64 *ptrp, int index)
{
@@ -425,9 +423,9 @@
}
static inline struct nilfs_btree_node *
-nilfs_btree_get_root(const struct nilfs_btree *btree)
+nilfs_btree_get_root(const struct nilfs_bmap *btree)
{
- return (struct nilfs_btree_node *)btree->bt_bmap.b_u.u_data;
+ return (struct nilfs_btree_node *)btree->b_u.u_data;
}
static inline struct nilfs_btree_node *
@@ -442,13 +440,13 @@
return (struct nilfs_btree_node *)path[level].bp_sib_bh->b_data;
}
-static inline int nilfs_btree_height(const struct nilfs_btree *btree)
+static inline int nilfs_btree_height(const struct nilfs_bmap *btree)
{
return nilfs_btree_node_get_level(nilfs_btree_get_root(btree)) + 1;
}
static inline struct nilfs_btree_node *
-nilfs_btree_get_node(const struct nilfs_btree *btree,
+nilfs_btree_get_node(const struct nilfs_bmap *btree,
const struct nilfs_btree_path *path,
int level)
{
@@ -469,7 +467,7 @@
return 0;
}
-static int nilfs_btree_do_lookup(const struct nilfs_btree *btree,
+static int nilfs_btree_do_lookup(const struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
__u64 key, __u64 *ptrp, int minlevel)
{
@@ -516,7 +514,7 @@
return 0;
}
-static int nilfs_btree_do_lookup_last(const struct nilfs_btree *btree,
+static int nilfs_btree_do_lookup_last(const struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
__u64 *keyp, __u64 *ptrp)
{
@@ -553,15 +551,13 @@
return 0;
}
-static int nilfs_btree_lookup(const struct nilfs_bmap *bmap,
+static int nilfs_btree_lookup(const struct nilfs_bmap *btree,
__u64 key, int level, __u64 *ptrp)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
__u64 ptr;
int ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -576,10 +572,9 @@
return ret;
}
-static int nilfs_btree_lookup_contig(const struct nilfs_bmap *bmap,
+static int nilfs_btree_lookup_contig(const struct nilfs_bmap *btree,
__u64 key, __u64 *ptrp, unsigned maxblocks)
{
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
struct nilfs_btree_path *path;
struct nilfs_btree_node *node;
struct inode *dat = NULL;
@@ -596,8 +591,8 @@
if (ret < 0)
goto out;
- if (NILFS_BMAP_USE_VBN(bmap)) {
- dat = nilfs_bmap_get_dat(bmap);
+ if (NILFS_BMAP_USE_VBN(btree)) {
+ dat = nilfs_bmap_get_dat(btree);
ret = nilfs_dat_translate(dat, ptr, &blocknr);
if (ret < 0)
goto out;
@@ -656,7 +651,7 @@
return ret;
}
-static void nilfs_btree_promote_key(struct nilfs_btree *btree,
+static void nilfs_btree_promote_key(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 key)
{
@@ -678,7 +673,7 @@
}
}
-static void nilfs_btree_do_insert(struct nilfs_btree *btree,
+static void nilfs_btree_do_insert(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -702,7 +697,7 @@
}
}
-static void nilfs_btree_carry_left(struct nilfs_btree *btree,
+static void nilfs_btree_carry_left(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -747,7 +742,7 @@
nilfs_btree_do_insert(btree, path, level, keyp, ptrp);
}
-static void nilfs_btree_carry_right(struct nilfs_btree *btree,
+static void nilfs_btree_carry_right(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -793,7 +788,7 @@
nilfs_btree_do_insert(btree, path, level, keyp, ptrp);
}
-static void nilfs_btree_split(struct nilfs_btree *btree,
+static void nilfs_btree_split(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -847,7 +842,7 @@
path[level + 1].bp_index++;
}
-static void nilfs_btree_grow(struct nilfs_btree *btree,
+static void nilfs_btree_grow(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -874,7 +869,7 @@
*ptrp = path[level].bp_newreq.bpr_ptr;
}
-static __u64 nilfs_btree_find_near(const struct nilfs_btree *btree,
+static __u64 nilfs_btree_find_near(const struct nilfs_bmap *btree,
const struct nilfs_btree_path *path)
{
struct nilfs_btree_node *node;
@@ -902,13 +897,13 @@
return NILFS_BMAP_INVALID_PTR;
}
-static __u64 nilfs_btree_find_target_v(const struct nilfs_btree *btree,
+static __u64 nilfs_btree_find_target_v(const struct nilfs_bmap *btree,
const struct nilfs_btree_path *path,
__u64 key)
{
__u64 ptr;
- ptr = nilfs_bmap_find_target_seq(&btree->bt_bmap, key);
+ ptr = nilfs_bmap_find_target_seq(btree, key);
if (ptr != NILFS_BMAP_INVALID_PTR)
/* sequential access */
return ptr;
@@ -919,17 +914,17 @@
return ptr;
}
/* block group */
- return nilfs_bmap_find_target_in_group(&btree->bt_bmap);
+ return nilfs_bmap_find_target_in_group(btree);
}
-static void nilfs_btree_set_target_v(struct nilfs_btree *btree, __u64 key,
+static void nilfs_btree_set_target_v(struct nilfs_bmap *btree, __u64 key,
__u64 ptr)
{
- btree->bt_bmap.b_last_allocated_key = key;
- btree->bt_bmap.b_last_allocated_ptr = ptr;
+ btree->b_last_allocated_key = key;
+ btree->b_last_allocated_ptr = ptr;
}
-static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_insert(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int *levelp, __u64 key, __u64 ptr,
struct nilfs_bmap_stats *stats)
@@ -944,14 +939,13 @@
level = NILFS_BTREE_LEVEL_DATA;
/* allocate a new ptr for data block */
- if (NILFS_BMAP_USE_VBN(&btree->bt_bmap)) {
+ if (NILFS_BMAP_USE_VBN(btree)) {
path[level].bp_newreq.bpr_ptr =
nilfs_btree_find_target_v(btree, path, key);
- dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ dat = nilfs_bmap_get_dat(btree);
}
- ret = nilfs_bmap_prepare_alloc_ptr(&btree->bt_bmap,
- &path[level].bp_newreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, &path[level].bp_newreq, dat);
if (ret < 0)
goto err_out_data;
@@ -1009,7 +1003,7 @@
/* split */
path[level].bp_newreq.bpr_ptr =
path[level - 1].bp_newreq.bpr_ptr + 1;
- ret = nilfs_bmap_prepare_alloc_ptr(&btree->bt_bmap,
+ ret = nilfs_bmap_prepare_alloc_ptr(btree,
&path[level].bp_newreq, dat);
if (ret < 0)
goto err_out_child_node;
@@ -1039,8 +1033,7 @@
/* grow */
path[level].bp_newreq.bpr_ptr = path[level - 1].bp_newreq.bpr_ptr + 1;
- ret = nilfs_bmap_prepare_alloc_ptr(&btree->bt_bmap,
- &path[level].bp_newreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, &path[level].bp_newreq, dat);
if (ret < 0)
goto err_out_child_node;
ret = nilfs_btree_get_new_block(btree, path[level].bp_newreq.bpr_ptr,
@@ -1066,25 +1059,22 @@
/* error */
err_out_curr_node:
- nilfs_bmap_abort_alloc_ptr(&btree->bt_bmap, &path[level].bp_newreq,
- dat);
+ nilfs_bmap_abort_alloc_ptr(btree, &path[level].bp_newreq, dat);
err_out_child_node:
for (level--; level > NILFS_BTREE_LEVEL_DATA; level--) {
nilfs_btnode_delete(path[level].bp_sib_bh);
- nilfs_bmap_abort_alloc_ptr(&btree->bt_bmap,
- &path[level].bp_newreq, dat);
+ nilfs_bmap_abort_alloc_ptr(btree, &path[level].bp_newreq, dat);
}
- nilfs_bmap_abort_alloc_ptr(&btree->bt_bmap, &path[level].bp_newreq,
- dat);
+ nilfs_bmap_abort_alloc_ptr(btree, &path[level].bp_newreq, dat);
err_out_data:
*levelp = level;
stats->bs_nblocks = 0;
return ret;
}
-static void nilfs_btree_commit_insert(struct nilfs_btree *btree,
+static void nilfs_btree_commit_insert(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int maxlevel, __u64 key, __u64 ptr)
{
@@ -1093,29 +1083,27 @@
set_buffer_nilfs_volatile((struct buffer_head *)((unsigned long)ptr));
ptr = path[NILFS_BTREE_LEVEL_DATA].bp_newreq.bpr_ptr;
- if (NILFS_BMAP_USE_VBN(&btree->bt_bmap)) {
+ if (NILFS_BMAP_USE_VBN(btree)) {
nilfs_btree_set_target_v(btree, key, ptr);
- dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ dat = nilfs_bmap_get_dat(btree);
}
for (level = NILFS_BTREE_LEVEL_NODE_MIN; level <= maxlevel; level++) {
- nilfs_bmap_commit_alloc_ptr(&btree->bt_bmap,
+ nilfs_bmap_commit_alloc_ptr(btree,
&path[level - 1].bp_newreq, dat);
path[level].bp_op(btree, path, level, &key, &ptr);
}
- if (!nilfs_bmap_dirty(&btree->bt_bmap))
- nilfs_bmap_set_dirty(&btree->bt_bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
}
-static int nilfs_btree_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
+static int nilfs_btree_insert(struct nilfs_bmap *btree, __u64 key, __u64 ptr)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_bmap_stats stats;
int level, ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -1132,14 +1120,14 @@
if (ret < 0)
goto out;
nilfs_btree_commit_insert(btree, path, level, key, ptr);
- nilfs_bmap_add_blocks(bmap, stats.bs_nblocks);
+ nilfs_bmap_add_blocks(btree, stats.bs_nblocks);
out:
nilfs_btree_free_path(path);
return ret;
}
-static void nilfs_btree_do_delete(struct nilfs_btree *btree,
+static void nilfs_btree_do_delete(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -1161,7 +1149,7 @@
}
}
-static void nilfs_btree_borrow_left(struct nilfs_btree *btree,
+static void nilfs_btree_borrow_left(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -1192,7 +1180,7 @@
path[level].bp_index += n;
}
-static void nilfs_btree_borrow_right(struct nilfs_btree *btree,
+static void nilfs_btree_borrow_right(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -1224,7 +1212,7 @@
path[level].bp_sib_bh = NULL;
}
-static void nilfs_btree_concat_left(struct nilfs_btree *btree,
+static void nilfs_btree_concat_left(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -1249,7 +1237,7 @@
path[level].bp_index += nilfs_btree_node_get_nchildren(left);
}
-static void nilfs_btree_concat_right(struct nilfs_btree *btree,
+static void nilfs_btree_concat_right(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -1273,7 +1261,7 @@
path[level + 1].bp_index++;
}
-static void nilfs_btree_shrink(struct nilfs_btree *btree,
+static void nilfs_btree_shrink(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, __u64 *keyp, __u64 *ptrp)
{
@@ -1295,7 +1283,7 @@
}
-static int nilfs_btree_prepare_delete(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_delete(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int *levelp,
struct nilfs_bmap_stats *stats,
@@ -1315,7 +1303,7 @@
path[level].bp_oldreq.bpr_ptr =
nilfs_btree_node_get_ptr(btree, node,
path[level].bp_index);
- ret = nilfs_bmap_prepare_end_ptr(&btree->bt_bmap,
+ ret = nilfs_bmap_prepare_end_ptr(btree,
&path[level].bp_oldreq, dat);
if (ret < 0)
goto err_out_child_node;
@@ -1393,8 +1381,7 @@
path[level].bp_oldreq.bpr_ptr =
nilfs_btree_node_get_ptr(btree, node, path[level].bp_index);
- ret = nilfs_bmap_prepare_end_ptr(&btree->bt_bmap,
- &path[level].bp_oldreq, dat);
+ ret = nilfs_bmap_prepare_end_ptr(btree, &path[level].bp_oldreq, dat);
if (ret < 0)
goto err_out_child_node;
@@ -1409,44 +1396,40 @@
/* error */
err_out_curr_node:
- nilfs_bmap_abort_end_ptr(&btree->bt_bmap, &path[level].bp_oldreq, dat);
+ nilfs_bmap_abort_end_ptr(btree, &path[level].bp_oldreq, dat);
err_out_child_node:
for (level--; level >= NILFS_BTREE_LEVEL_NODE_MIN; level--) {
brelse(path[level].bp_sib_bh);
- nilfs_bmap_abort_end_ptr(&btree->bt_bmap,
- &path[level].bp_oldreq, dat);
+ nilfs_bmap_abort_end_ptr(btree, &path[level].bp_oldreq, dat);
}
*levelp = level;
stats->bs_nblocks = 0;
return ret;
}
-static void nilfs_btree_commit_delete(struct nilfs_btree *btree,
+static void nilfs_btree_commit_delete(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int maxlevel, struct inode *dat)
{
int level;
for (level = NILFS_BTREE_LEVEL_NODE_MIN; level <= maxlevel; level++) {
- nilfs_bmap_commit_end_ptr(&btree->bt_bmap,
- &path[level].bp_oldreq, dat);
+ nilfs_bmap_commit_end_ptr(btree, &path[level].bp_oldreq, dat);
path[level].bp_op(btree, path, level, NULL, NULL);
}
- if (!nilfs_bmap_dirty(&btree->bt_bmap))
- nilfs_bmap_set_dirty(&btree->bt_bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
}
-static int nilfs_btree_delete(struct nilfs_bmap *bmap, __u64 key)
+static int nilfs_btree_delete(struct nilfs_bmap *btree, __u64 key)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_bmap_stats stats;
struct inode *dat;
int level, ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -1457,27 +1440,24 @@
goto out;
- dat = NILFS_BMAP_USE_VBN(&btree->bt_bmap) ?
- nilfs_bmap_get_dat(&btree->bt_bmap) : NULL;
+ dat = NILFS_BMAP_USE_VBN(btree) ? nilfs_bmap_get_dat(btree) : NULL;
ret = nilfs_btree_prepare_delete(btree, path, &level, &stats, dat);
if (ret < 0)
goto out;
nilfs_btree_commit_delete(btree, path, level, dat);
- nilfs_bmap_sub_blocks(bmap, stats.bs_nblocks);
+ nilfs_bmap_sub_blocks(btree, stats.bs_nblocks);
out:
nilfs_btree_free_path(path);
return ret;
}
-static int nilfs_btree_last_key(const struct nilfs_bmap *bmap, __u64 *keyp)
+static int nilfs_btree_last_key(const struct nilfs_bmap *btree, __u64 *keyp)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
int ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -1489,16 +1469,14 @@
return ret;
}
-static int nilfs_btree_check_delete(struct nilfs_bmap *bmap, __u64 key)
+static int nilfs_btree_check_delete(struct nilfs_bmap *btree, __u64 key)
{
struct buffer_head *bh;
- struct nilfs_btree *btree;
struct nilfs_btree_node *root, *node;
__u64 maxkey, nextmaxkey;
__u64 ptr;
int nchildren, ret;
- btree = (struct nilfs_btree *)bmap;
root = nilfs_btree_get_root(btree);
switch (nilfs_btree_height(btree)) {
case 2:
@@ -1529,18 +1507,16 @@
return (maxkey == key) && (nextmaxkey < NILFS_BMAP_LARGE_LOW);
}
-static int nilfs_btree_gather_data(struct nilfs_bmap *bmap,
+static int nilfs_btree_gather_data(struct nilfs_bmap *btree,
__u64 *keys, __u64 *ptrs, int nitems)
{
struct buffer_head *bh;
- struct nilfs_btree *btree;
struct nilfs_btree_node *node, *root;
__le64 *dkeys;
__le64 *dptrs;
__u64 ptr;
int nchildren, i, ret;
- btree = (struct nilfs_btree *)bmap;
root = nilfs_btree_get_root(btree);
switch (nilfs_btree_height(btree)) {
case 2:
@@ -1578,14 +1554,13 @@
}
static int
-nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *bmap, __u64 key,
+nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *btree, __u64 key,
union nilfs_bmap_ptr_req *dreq,
union nilfs_bmap_ptr_req *nreq,
struct buffer_head **bhp,
struct nilfs_bmap_stats *stats)
{
struct buffer_head *bh;
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
struct inode *dat = NULL;
int ret;
@@ -1593,12 +1568,12 @@
/* for data */
/* cannot find near ptr */
- if (NILFS_BMAP_USE_VBN(bmap)) {
+ if (NILFS_BMAP_USE_VBN(btree)) {
dreq->bpr_ptr = nilfs_btree_find_target_v(btree, NULL, key);
- dat = nilfs_bmap_get_dat(bmap);
+ dat = nilfs_bmap_get_dat(btree);
}
- ret = nilfs_bmap_prepare_alloc_ptr(bmap, dreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, dreq, dat);
if (ret < 0)
return ret;
@@ -1606,7 +1581,7 @@
stats->bs_nblocks++;
if (nreq != NULL) {
nreq->bpr_ptr = dreq->bpr_ptr + 1;
- ret = nilfs_bmap_prepare_alloc_ptr(bmap, nreq, dat);
+ ret = nilfs_bmap_prepare_alloc_ptr(btree, nreq, dat);
if (ret < 0)
goto err_out_dreq;
@@ -1623,16 +1598,16 @@
/* error */
err_out_nreq:
- nilfs_bmap_abort_alloc_ptr(bmap, nreq, dat);
+ nilfs_bmap_abort_alloc_ptr(btree, nreq, dat);
err_out_dreq:
- nilfs_bmap_abort_alloc_ptr(bmap, dreq, dat);
+ nilfs_bmap_abort_alloc_ptr(btree, dreq, dat);
stats->bs_nblocks = 0;
return ret;
}
static void
-nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *bmap,
+nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *btree,
__u64 key, __u64 ptr,
const __u64 *keys, const __u64 *ptrs,
int n,
@@ -1640,34 +1615,32 @@
union nilfs_bmap_ptr_req *nreq,
struct buffer_head *bh)
{
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
struct nilfs_btree_node *node;
struct inode *dat;
__u64 tmpptr;
/* free resources */
- if (bmap->b_ops->bop_clear != NULL)
- bmap->b_ops->bop_clear(bmap);
+ if (btree->b_ops->bop_clear != NULL)
+ btree->b_ops->bop_clear(btree);
/* ptr must be a pointer to a buffer head. */
set_buffer_nilfs_volatile((struct buffer_head *)((unsigned long)ptr));
/* convert and insert */
- dat = NILFS_BMAP_USE_VBN(bmap) ? nilfs_bmap_get_dat(bmap) : NULL;
- nilfs_btree_init(bmap);
+ dat = NILFS_BMAP_USE_VBN(btree) ? nilfs_bmap_get_dat(btree) : NULL;
+ nilfs_btree_init(btree);
if (nreq != NULL) {
- nilfs_bmap_commit_alloc_ptr(bmap, dreq, dat);
- nilfs_bmap_commit_alloc_ptr(bmap, nreq, dat);
+ nilfs_bmap_commit_alloc_ptr(btree, dreq, dat);
+ nilfs_bmap_commit_alloc_ptr(btree, nreq, dat);
/* create child node at level 1 */
node = (struct nilfs_btree_node *)bh->b_data;
nilfs_btree_node_init(btree, node, 0, 1, n, keys, ptrs);
- nilfs_btree_node_insert(btree, node,
- key, dreq->bpr_ptr, n);
+ nilfs_btree_node_insert(btree, node, key, dreq->bpr_ptr, n);
if (!buffer_dirty(bh))
nilfs_btnode_mark_dirty(bh);
- if (!nilfs_bmap_dirty(bmap))
- nilfs_bmap_set_dirty(bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
brelse(bh);
@@ -1677,19 +1650,18 @@
nilfs_btree_node_init(btree, node, NILFS_BTREE_NODE_ROOT,
2, 1, &keys[0], &tmpptr);
} else {
- nilfs_bmap_commit_alloc_ptr(bmap, dreq, dat);
+ nilfs_bmap_commit_alloc_ptr(btree, dreq, dat);
/* create root node at level 1 */
node = nilfs_btree_get_root(btree);
nilfs_btree_node_init(btree, node, NILFS_BTREE_NODE_ROOT,
1, n, keys, ptrs);
- nilfs_btree_node_insert(btree, node,
- key, dreq->bpr_ptr, n);
- if (!nilfs_bmap_dirty(bmap))
- nilfs_bmap_set_dirty(bmap);
+ nilfs_btree_node_insert(btree, node, key, dreq->bpr_ptr, n);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
}
- if (NILFS_BMAP_USE_VBN(bmap))
+ if (NILFS_BMAP_USE_VBN(btree))
nilfs_btree_set_target_v(btree, key, dreq->bpr_ptr);
}
@@ -1702,7 +1674,7 @@
* @ptrs:
* @n:
*/
-int nilfs_btree_convert_and_insert(struct nilfs_bmap *bmap,
+int nilfs_btree_convert_and_insert(struct nilfs_bmap *btree,
__u64 key, __u64 ptr,
const __u64 *keys, const __u64 *ptrs, int n)
{
@@ -1715,7 +1687,7 @@
di = &dreq;
ni = NULL;
} else if ((n + 1) <= NILFS_BTREE_NODE_NCHILDREN_MAX(
- 1 << bmap->b_inode->i_blkbits)) {
+ 1 << btree->b_inode->i_blkbits)) {
di = &dreq;
ni = &nreq;
} else {
@@ -1724,17 +1696,17 @@
BUG();
}
- ret = nilfs_btree_prepare_convert_and_insert(bmap, key, di, ni, &bh,
+ ret = nilfs_btree_prepare_convert_and_insert(btree, key, di, ni, &bh,
&stats);
if (ret < 0)
return ret;
- nilfs_btree_commit_convert_and_insert(bmap, key, ptr, keys, ptrs, n,
+ nilfs_btree_commit_convert_and_insert(btree, key, ptr, keys, ptrs, n,
di, ni, bh);
- nilfs_bmap_add_blocks(bmap, stats.bs_nblocks);
+ nilfs_bmap_add_blocks(btree, stats.bs_nblocks);
return 0;
}
-static int nilfs_btree_propagate_p(struct nilfs_btree *btree,
+static int nilfs_btree_propagate_p(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level,
struct buffer_head *bh)
@@ -1746,7 +1718,7 @@
return 0;
}
-static int nilfs_btree_prepare_update_v(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_update_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct inode *dat)
{
@@ -1768,7 +1740,7 @@
path[level].bp_ctxt.newkey = path[level].bp_newreq.bpr_ptr;
path[level].bp_ctxt.bh = path[level].bp_bh;
ret = nilfs_btnode_prepare_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
if (ret < 0) {
nilfs_dat_abort_update(dat,
@@ -1781,7 +1753,7 @@
return 0;
}
-static void nilfs_btree_commit_update_v(struct nilfs_btree *btree,
+static void nilfs_btree_commit_update_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct inode *dat)
{
@@ -1789,11 +1761,11 @@
nilfs_dat_commit_update(dat, &path[level].bp_oldreq.bpr_req,
&path[level].bp_newreq.bpr_req,
- btree->bt_bmap.b_ptr_type == NILFS_BMAP_PTR_VS);
+ btree->b_ptr_type == NILFS_BMAP_PTR_VS);
if (buffer_nilfs_node(path[level].bp_bh)) {
nilfs_btnode_commit_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
path[level].bp_bh = path[level].bp_ctxt.bh;
}
@@ -1804,7 +1776,7 @@
path[level].bp_newreq.bpr_ptr);
}
-static void nilfs_btree_abort_update_v(struct nilfs_btree *btree,
+static void nilfs_btree_abort_update_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct inode *dat)
{
@@ -1812,11 +1784,11 @@
&path[level].bp_newreq.bpr_req);
if (buffer_nilfs_node(path[level].bp_bh))
nilfs_btnode_abort_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
}
-static int nilfs_btree_prepare_propagate_v(struct nilfs_btree *btree,
+static int nilfs_btree_prepare_propagate_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int minlevel, int *maxlevelp,
struct inode *dat)
@@ -1851,7 +1823,7 @@
return ret;
}
-static void nilfs_btree_commit_propagate_v(struct nilfs_btree *btree,
+static void nilfs_btree_commit_propagate_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int minlevel, int maxlevel,
struct buffer_head *bh,
@@ -1866,13 +1838,13 @@
nilfs_btree_commit_update_v(btree, path, level, dat);
}
-static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
+static int nilfs_btree_propagate_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level, struct buffer_head *bh)
{
int maxlevel = 0, ret;
struct nilfs_btree_node *parent;
- struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ struct inode *dat = nilfs_bmap_get_dat(btree);
__u64 ptr;
get_bh(bh);
@@ -1899,10 +1871,9 @@
return ret;
}
-static int nilfs_btree_propagate(struct nilfs_bmap *bmap,
+static int nilfs_btree_propagate(struct nilfs_bmap *btree,
struct buffer_head *bh)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_btree_node *node;
__u64 key;
@@ -1910,7 +1881,6 @@
WARN_ON(!buffer_dirty(bh));
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -1920,7 +1890,7 @@
key = nilfs_btree_node_get_key(node, 0);
level = nilfs_btree_node_get_level(node);
} else {
- key = nilfs_bmap_data_get_key(bmap, bh);
+ key = nilfs_bmap_data_get_key(btree, bh);
level = NILFS_BTREE_LEVEL_DATA;
}
@@ -1932,7 +1902,7 @@
goto out;
}
- ret = NILFS_BMAP_USE_VBN(bmap) ?
+ ret = NILFS_BMAP_USE_VBN(btree) ?
nilfs_btree_propagate_v(btree, path, level, bh) :
nilfs_btree_propagate_p(btree, path, level, bh);
@@ -1942,13 +1912,13 @@
return ret;
}
-static int nilfs_btree_propagate_gc(struct nilfs_bmap *bmap,
+static int nilfs_btree_propagate_gc(struct nilfs_bmap *btree,
struct buffer_head *bh)
{
- return nilfs_dat_mark_dirty(nilfs_bmap_get_dat(bmap), bh->b_blocknr);
+ return nilfs_dat_mark_dirty(nilfs_bmap_get_dat(btree), bh->b_blocknr);
}
-static void nilfs_btree_add_dirty_buffer(struct nilfs_btree *btree,
+static void nilfs_btree_add_dirty_buffer(struct nilfs_bmap *btree,
struct list_head *lists,
struct buffer_head *bh)
{
@@ -1969,7 +1939,7 @@
"%s: invalid btree level: %d (key=%llu, ino=%lu, "
"blocknr=%llu)\n",
__func__, level, (unsigned long long)key,
- NILFS_BMAP_I(&btree->bt_bmap)->vfs_inode.i_ino,
+ NILFS_BMAP_I(btree)->vfs_inode.i_ino,
(unsigned long long)bh->b_blocknr);
return;
}
@@ -1984,11 +1954,10 @@
list_add_tail(&bh->b_assoc_buffers, head);
}
-static void nilfs_btree_lookup_dirty_buffers(struct nilfs_bmap *bmap,
+static void nilfs_btree_lookup_dirty_buffers(struct nilfs_bmap *btree,
struct list_head *listp)
{
- struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
- struct address_space *btcache = &NILFS_BMAP_I(bmap)->i_btnode_cache;
+ struct address_space *btcache = &NILFS_BMAP_I(btree)->i_btnode_cache;
struct list_head lists[NILFS_BTREE_LEVEL_MAX];
struct pagevec pvec;
struct buffer_head *bh, *head;
@@ -2022,7 +1991,7 @@
list_splice_tail(&lists[level], listp);
}
-static int nilfs_btree_assign_p(struct nilfs_btree *btree,
+static int nilfs_btree_assign_p(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level,
struct buffer_head **bh,
@@ -2042,12 +2011,12 @@
path[level].bp_ctxt.newkey = blocknr;
path[level].bp_ctxt.bh = *bh;
ret = nilfs_btnode_prepare_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
if (ret < 0)
return ret;
nilfs_btnode_commit_change_key(
- &NILFS_BMAP_I(&btree->bt_bmap)->i_btnode_cache,
+ &NILFS_BMAP_I(btree)->i_btnode_cache,
&path[level].bp_ctxt);
*bh = path[level].bp_ctxt.bh;
}
@@ -2063,7 +2032,7 @@
return 0;
}
-static int nilfs_btree_assign_v(struct nilfs_btree *btree,
+static int nilfs_btree_assign_v(struct nilfs_bmap *btree,
struct nilfs_btree_path *path,
int level,
struct buffer_head **bh,
@@ -2071,15 +2040,14 @@
union nilfs_binfo *binfo)
{
struct nilfs_btree_node *parent;
- struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
+ struct inode *dat = nilfs_bmap_get_dat(btree);
__u64 key;
__u64 ptr;
union nilfs_bmap_ptr_req req;
int ret;
parent = nilfs_btree_get_node(btree, path, level + 1);
- ptr = nilfs_btree_node_get_ptr(btree, parent,
- path[level + 1].bp_index);
+ ptr = nilfs_btree_node_get_ptr(btree, parent, path[level + 1].bp_index);
req.bpr_ptr = ptr;
ret = nilfs_dat_prepare_start(dat, &req.bpr_req);
if (ret < 0)
@@ -2094,18 +2062,16 @@
return 0;
}
-static int nilfs_btree_assign(struct nilfs_bmap *bmap,
+static int nilfs_btree_assign(struct nilfs_bmap *btree,
struct buffer_head **bh,
sector_t blocknr,
union nilfs_binfo *binfo)
{
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
struct nilfs_btree_node *node;
__u64 key;
int level, ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -2115,7 +2081,7 @@
key = nilfs_btree_node_get_key(node, 0);
level = nilfs_btree_node_get_level(node);
} else {
- key = nilfs_bmap_data_get_key(bmap, *bh);
+ key = nilfs_bmap_data_get_key(btree, *bh);
level = NILFS_BTREE_LEVEL_DATA;
}
@@ -2125,7 +2091,7 @@
goto out;
}
- ret = NILFS_BMAP_USE_VBN(bmap) ?
+ ret = NILFS_BMAP_USE_VBN(btree) ?
nilfs_btree_assign_v(btree, path, level, bh, blocknr, binfo) :
nilfs_btree_assign_p(btree, path, level, bh, blocknr, binfo);
@@ -2135,7 +2101,7 @@
return ret;
}
-static int nilfs_btree_assign_gc(struct nilfs_bmap *bmap,
+static int nilfs_btree_assign_gc(struct nilfs_bmap *btree,
struct buffer_head **bh,
sector_t blocknr,
union nilfs_binfo *binfo)
@@ -2144,7 +2110,7 @@
__u64 key;
int ret;
- ret = nilfs_dat_move(nilfs_bmap_get_dat(bmap), (*bh)->b_blocknr,
+ ret = nilfs_dat_move(nilfs_bmap_get_dat(btree), (*bh)->b_blocknr,
blocknr);
if (ret < 0)
return ret;
@@ -2153,7 +2119,7 @@
node = (struct nilfs_btree_node *)(*bh)->b_data;
key = nilfs_btree_node_get_key(node, 0);
} else
- key = nilfs_bmap_data_get_key(bmap, *bh);
+ key = nilfs_bmap_data_get_key(btree, *bh);
/* on-disk format */
binfo->bi_v.bi_vblocknr = cpu_to_le64((*bh)->b_blocknr);
@@ -2162,15 +2128,13 @@
return 0;
}
-static int nilfs_btree_mark(struct nilfs_bmap *bmap, __u64 key, int level)
+static int nilfs_btree_mark(struct nilfs_bmap *btree, __u64 key, int level)
{
struct buffer_head *bh;
- struct nilfs_btree *btree;
struct nilfs_btree_path *path;
__u64 ptr;
int ret;
- btree = (struct nilfs_btree *)bmap;
path = nilfs_btree_alloc_path();
if (path == NULL)
return -ENOMEM;
@@ -2189,8 +2153,8 @@
if (!buffer_dirty(bh))
nilfs_btnode_mark_dirty(bh);
brelse(bh);
- if (!nilfs_bmap_dirty(&btree->bt_bmap))
- nilfs_bmap_set_dirty(&btree->bt_bmap);
+ if (!nilfs_bmap_dirty(btree))
+ nilfs_bmap_set_dirty(btree);
out:
nilfs_btree_free_path(path);