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nilfs2: remove nilfs_btree_operations from btree mapping 

will remove indirect function calls using nilfs_btree_operations
table.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi 2009-05-24 18:07:59 +09:00
parent 355c6b6103
commit 7cde31d7d6
2 changed files with 15 additions and 63 deletions
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52
fs/nilfs2/btree.c
View File

@ -913,9 +913,9 @@ static int nilfs_btree_prepare_insert(struct nilfs_btree *btree,
level = NILFS_BTREE_LEVEL_DATA;
/* allocate a new ptr for data block */
if (btree->bt_ops->btop_find_target != NULL)
if (NILFS_BMAP_USE_VBN(&btree->bt_bmap))
path[level].bp_newreq.bpr_ptr =
btree->bt_ops->btop_find_target(btree, path, key);
nilfs_btree_find_target_v(btree, path, key);
ret = nilfs_bmap_prepare_alloc_ptr(&btree->bt_bmap,
&path[level].bp_newreq);
@ -1061,8 +1061,8 @@ static void nilfs_btree_commit_insert(struct nilfs_btree *btree,
set_buffer_nilfs_volatile((struct buffer_head *)((unsigned long)ptr));
ptr = path[NILFS_BTREE_LEVEL_DATA].bp_newreq.bpr_ptr;
if (btree->bt_ops->btop_set_target != NULL)
btree->bt_ops->btop_set_target(btree, key, ptr);
if (NILFS_BMAP_USE_VBN(&btree->bt_bmap))
nilfs_btree_set_target_v(btree, key, ptr);
for (level = NILFS_BTREE_LEVEL_NODE_MIN; level <= maxlevel; level++) {
nilfs_bmap_commit_alloc_ptr(&btree->bt_bmap,
@ -1586,9 +1586,9 @@ nilfs_btree_prepare_convert_and_insert(struct nilfs_bmap *bmap, __u64 key,
/* for data */
/* cannot find near ptr */
if (btree->bt_ops->btop_find_target != NULL)
dreq->bpr_ptr
= btree->bt_ops->btop_find_target(btree, NULL, key);
if (NILFS_BMAP_USE_VBN(bmap))
dreq->bpr_ptr = nilfs_btree_find_target_v(btree, NULL, key);
ret = nilfs_bmap_prepare_alloc_ptr(bmap, dreq);
if (ret < 0)
return ret;
@ -1681,8 +1681,8 @@ nilfs_btree_commit_convert_and_insert(struct nilfs_bmap *bmap,
nilfs_bmap_set_dirty(bmap);
}
if (btree->bt_ops->btop_set_target != NULL)
btree->bt_ops->btop_set_target(btree, key, dreq->bpr_ptr);
if (NILFS_BMAP_USE_VBN(bmap))
nilfs_btree_set_target_v(btree, key, dreq->bpr_ptr);
}
/**
@ -1926,7 +1926,9 @@ static int nilfs_btree_propagate(const struct nilfs_bmap *bmap,
goto out;
}
ret = btree->bt_ops->btop_propagate(btree, path, level, bh);
ret = NILFS_BMAP_USE_VBN(bmap) ?
nilfs_btree_propagate_v(btree, path, level, bh) :
nilfs_btree_propagate_p(btree, path, level, bh);
out:
nilfs_btree_clear_path(btree, path);
@ -2107,8 +2109,9 @@ static int nilfs_btree_assign(struct nilfs_bmap *bmap,
goto out;
}
ret = btree->bt_ops->btop_assign(btree, path, level, bh,
blocknr, binfo);
ret = NILFS_BMAP_USE_VBN(bmap) ?
nilfs_btree_assign_v(btree, path, level, bh, blocknr, binfo) :
nilfs_btree_assign_p(btree, path, level, bh, blocknr, binfo);
out:
nilfs_btree_clear_path(btree, path);
@ -2220,34 +2223,9 @@ static const struct nilfs_bmap_operations nilfs_btree_ops_gc = {
.bop_gather_data = NULL,
};
static const struct nilfs_btree_operations nilfs_btree_ops_v = {
.btop_find_target = nilfs_btree_find_target_v,
.btop_set_target = nilfs_btree_set_target_v,
.btop_propagate = nilfs_btree_propagate_v,
.btop_assign = nilfs_btree_assign_v,
};
static const struct nilfs_btree_operations nilfs_btree_ops_p = {
.btop_find_target = NULL,
.btop_set_target = NULL,
.btop_propagate = nilfs_btree_propagate_p,
.btop_assign = nilfs_btree_assign_p,
};
int nilfs_btree_init(struct nilfs_bmap *bmap)
{
struct nilfs_btree *btree = (struct nilfs_btree *)bmap;
bmap->b_ops = &nilfs_btree_ops;
switch (bmap->b_inode->i_ino) {
case NILFS_DAT_INO:
btree->bt_ops = &nilfs_btree_ops_p;
break;
default:
btree->bt_ops = &nilfs_btree_ops_v;
break;
}
return 0;
}

26
fs/nilfs2/btree.h
View File

@ -33,28 +33,6 @@
struct nilfs_btree;
struct nilfs_btree_path;
/**
* struct nilfs_btree_operations - B-tree operation table
*/
struct nilfs_btree_operations {
__u64 (*btop_find_target)(const struct nilfs_btree *,
const struct nilfs_btree_path *, __u64);
void (*btop_set_target)(struct nilfs_btree *, __u64, __u64);
struct the_nilfs *(*btop_get_nilfs)(struct nilfs_btree *);
int (*btop_propagate)(struct nilfs_btree *,
struct nilfs_btree_path *,
int,
struct buffer_head *);
int (*btop_assign)(struct nilfs_btree *,
struct nilfs_btree_path *,
int,
struct buffer_head **,
sector_t,
union nilfs_binfo *);
};
/**
* struct nilfs_btree_node - B-tree node
* @bn_flags: flags
@ -80,13 +58,9 @@ struct nilfs_btree_node {
/**
* struct nilfs_btree - B-tree structure
* @bt_bmap: bmap base structure
* @bt_ops: B-tree operation table
*/
struct nilfs_btree {
struct nilfs_bmap bt_bmap;
/* B-tree-specific members */
const struct nilfs_btree_operations *bt_ops;
};