Commit 92ba470c authored by Joel Becker's avatar Joel Becker
Browse files

ocfs2: Make extent map insertion an extent_tree_operation. 



ocfs2_insert_extent() wants to insert a record into the extent map if
it's an inode data extent.  But since many btrees can call that
function, let's make it an op on ocfs2_extent_tree.  Other tree types
can leave it empty.

Signed-off-by: default avatarJoel Becker <joel.becker@oracle.com>
parent 627961b7

fs/ocfs2/alloc.c

+27 −2
Original line number Diff line number Diff line
@@ -82,6 +82,13 @@ struct ocfs2_extent_tree_operations { 
	void (*eo_update_clusters)(struct ocfs2_extent_tree *et,

				   u32 new_clusters);



	/*

	 * If this extent tree is supported by an extent map, insert

	 * a record into the map.

	 */

	void (*eo_extent_map_insert)(struct ocfs2_extent_tree *et,

				     struct ocfs2_extent_rec *rec);



	/*

	 * If this extent tree is supported by an extent map, truncate the

	 * map to clusters,
@@ -127,6 +134,8 @@ static void ocfs2_dinode_set_last_eb_blk(struct ocfs2_extent_tree *et, 
					 u64 blkno);

static void ocfs2_dinode_update_clusters(struct ocfs2_extent_tree *et,

					 u32 clusters);

static void ocfs2_dinode_extent_map_insert(struct ocfs2_extent_tree *et,

					   struct ocfs2_extent_rec *rec);

static void ocfs2_dinode_extent_map_truncate(struct ocfs2_extent_tree *et,

					     u32 clusters);

static int ocfs2_dinode_insert_check(struct ocfs2_extent_tree *et,
@@ -137,6 +146,7 @@ static struct ocfs2_extent_tree_operations ocfs2_dinode_et_ops = { 
	.eo_set_last_eb_blk	= ocfs2_dinode_set_last_eb_blk,

	.eo_get_last_eb_blk	= ocfs2_dinode_get_last_eb_blk,

	.eo_update_clusters	= ocfs2_dinode_update_clusters,

	.eo_extent_map_insert	= ocfs2_dinode_extent_map_insert,

	.eo_extent_map_truncate	= ocfs2_dinode_extent_map_truncate,

	.eo_insert_check	= ocfs2_dinode_insert_check,

	.eo_sanity_check	= ocfs2_dinode_sanity_check,
@@ -172,6 +182,14 @@ static void ocfs2_dinode_update_clusters(struct ocfs2_extent_tree *et, 
	spin_unlock(&oi->ip_lock);

}



static void ocfs2_dinode_extent_map_insert(struct ocfs2_extent_tree *et,

					   struct ocfs2_extent_rec *rec)

{

	struct inode *inode = &cache_info_to_inode(et->et_ci)->vfs_inode;



	ocfs2_extent_map_insert_rec(inode, rec);

}



static void ocfs2_dinode_extent_map_truncate(struct ocfs2_extent_tree *et,

					     u32 clusters)

{
@@ -418,6 +436,13 @@ static inline void ocfs2_et_update_clusters(struct ocfs2_extent_tree *et, 
	et->et_ops->eo_update_clusters(et, clusters);

}



static inline void ocfs2_et_extent_map_insert(struct ocfs2_extent_tree *et,

					      struct ocfs2_extent_rec *rec)

{

	if (et->et_ops->eo_extent_map_insert)

		et->et_ops->eo_extent_map_insert(et, rec);

}



static inline void ocfs2_et_extent_map_truncate(struct ocfs2_extent_tree *et,

						u32 clusters)

{
@@ -4717,8 +4742,8 @@ int ocfs2_insert_extent(struct ocfs2_super *osb, 
	status = ocfs2_do_insert_extent(handle, et, &rec, &insert);

	if (status < 0)

		mlog_errno(status);

	else if (et->et_ops == &ocfs2_dinode_et_ops)

		ocfs2_extent_map_insert_rec(inode, &rec);

	else

		ocfs2_et_extent_map_insert(et, &rec);



bail:

	brelse(last_eb_bh);

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