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Commit 355c6b61 authored by Ryusuke Konishi's avatar Ryusuke Konishi
Browse files

nilfs2: remove nilfs_direct_operations from direct mapping 



will remove indirect function calls using nilfs_direct_operations
table.

Signed-off-by: default avatarRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
parent d4b96157

fs/nilfs2/direct.c

+10 −36
Original line number Diff line number Diff line
@@ -90,8 +90,8 @@ static int nilfs_direct_prepare_insert(struct nilfs_direct *direct, 
{

	int ret;



	if (direct->d_ops->dop_find_target != NULL)

		req->bpr_ptr = direct->d_ops->dop_find_target(direct, key);

	if (NILFS_BMAP_USE_VBN(&direct->d_bmap))

		req->bpr_ptr = nilfs_direct_find_target_v(direct, key);

	ret = nilfs_bmap_prepare_alloc_ptr(&direct->d_bmap, req);

	if (ret < 0)

		return ret;
@@ -116,8 +116,8 @@ static void nilfs_direct_commit_insert(struct nilfs_direct *direct, 
	if (!nilfs_bmap_dirty(&direct->d_bmap))

		nilfs_bmap_set_dirty(&direct->d_bmap);



	if (direct->d_ops->dop_set_target != NULL)

		direct->d_ops->dop_set_target(direct, key, req->bpr_ptr);

	if (NILFS_BMAP_USE_VBN(&direct->d_bmap))

		nilfs_direct_set_target_v(direct, key, req->bpr_ptr);

}



static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
@@ -297,12 +297,10 @@ static int nilfs_direct_propagate_v(struct nilfs_direct *direct, 
static int nilfs_direct_propagate(const struct nilfs_bmap *bmap,

				  struct buffer_head *bh)

{

	struct nilfs_direct *direct;

	struct nilfs_direct *direct = (struct nilfs_direct *)bmap;



	direct = (struct nilfs_direct *)bmap;

	return (direct->d_ops->dop_propagate != NULL) ?

		direct->d_ops->dop_propagate(direct, bh) :

		0;

	return NILFS_BMAP_USE_VBN(bmap) ?

		nilfs_direct_propagate_v(direct, bh) : 0;

}



static int nilfs_direct_assign_v(struct nilfs_direct *direct,
@@ -362,8 +360,9 @@ static int nilfs_direct_assign(struct nilfs_bmap *bmap, 
		return -EINVAL;

	}



	return direct->d_ops->dop_assign(direct, key, ptr, bh,

					 blocknr, binfo);

	return NILFS_BMAP_USE_VBN(bmap) ?

		nilfs_direct_assign_v(direct, key, ptr, bh, blocknr, binfo) :

		nilfs_direct_assign_p(direct, key, ptr, bh, blocknr, binfo);

}



static const struct nilfs_bmap_operations nilfs_direct_ops = {
@@ -386,33 +385,8 @@ static const struct nilfs_bmap_operations nilfs_direct_ops = { 
};





static const struct nilfs_direct_operations nilfs_direct_ops_v = {

	.dop_find_target	=	nilfs_direct_find_target_v,

	.dop_set_target		=	nilfs_direct_set_target_v,

	.dop_propagate		=	nilfs_direct_propagate_v,

	.dop_assign		=	nilfs_direct_assign_v,

};



static const struct nilfs_direct_operations nilfs_direct_ops_p = {

	.dop_find_target	=	NULL,

	.dop_set_target		=	NULL,

	.dop_propagate		=	NULL,

	.dop_assign		=	nilfs_direct_assign_p,

};



int nilfs_direct_init(struct nilfs_bmap *bmap)

{

	struct nilfs_direct *direct = (struct nilfs_direct *)bmap;



	bmap->b_ops = &nilfs_direct_ops;

	switch (bmap->b_inode->i_ino) {

	case NILFS_DAT_INO:

		direct->d_ops = &nilfs_direct_ops_p;

		break;

	default:

		direct->d_ops = &nilfs_direct_ops_v;

		break;

	}



	return 0;

}

fs/nilfs2/direct.h

+0 −16
Original line number Diff line number Diff line
@@ -30,18 +30,6 @@ 


struct nilfs_direct;



/**

 * struct nilfs_direct_operations - direct mapping operation table

 */

struct nilfs_direct_operations {

	__u64 (*dop_find_target)(const struct nilfs_direct *, __u64);

	void (*dop_set_target)(struct nilfs_direct *, __u64, __u64);

	int (*dop_propagate)(struct nilfs_direct *, struct buffer_head *);

	int (*dop_assign)(struct nilfs_direct *, __u64, __u64,

			  struct buffer_head **, sector_t,

			  union nilfs_binfo *);

};



/**

 * struct nilfs_direct_node - direct node

 * @dn_flags: flags
@@ -55,13 +43,9 @@ struct nilfs_direct_node { 
/**

 * struct nilfs_direct - direct mapping

 * @d_bmap: bmap structure

 * @d_ops: direct mapping operation table

 */

struct nilfs_direct {

	struct nilfs_bmap d_bmap;



	/* direct-mapping-specific members */

	const struct nilfs_direct_operations *d_ops;

};