From 943cced39ee45ed2db25efd25eee8ba49cf2dfc4 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Wed, 20 Aug 2008 17:31:10 -0700 Subject: ocfs2: Determine an extent tree's max_leaf_clusters in an et_op. Provide an optional extent_tree_operation to specify the max_leaf_clusters of an ocfs2_extent_tree. If not provided, the value is 0 (unlimited). Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/alloc.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'fs/ocfs2') diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index d1aa7249deb..64f1af4e999 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -76,6 +76,8 @@ struct ocfs2_extent_tree_operations { /* These are internal to ocfs2_extent_tree and don't have * accessor functions */ void (*eo_fill_root_el)(struct ocfs2_extent_tree *et); + void (*eo_fill_max_leaf_clusters)(struct inode *inode, + struct ocfs2_extent_tree *et); }; struct ocfs2_extent_tree { @@ -205,6 +207,14 @@ static void ocfs2_xattr_tree_fill_root_el(struct ocfs2_extent_tree *et) et->et_root_el = &xb->xb_attrs.xb_root.xt_list; } +static void ocfs2_xattr_tree_fill_max_leaf_clusters(struct inode *inode, + struct ocfs2_extent_tree *et) +{ + et->et_max_leaf_clusters = + ocfs2_clusters_for_bytes(inode->i_sb, + OCFS2_MAX_XATTR_TREE_LEAF_SIZE); +} + static void ocfs2_xattr_tree_set_last_eb_blk(struct ocfs2_extent_tree *et, u64 blkno) { @@ -243,6 +253,7 @@ static struct ocfs2_extent_tree_operations ocfs2_xattr_tree_et_ops = { .eo_update_clusters = ocfs2_xattr_tree_update_clusters, .eo_sanity_check = ocfs2_xattr_tree_sanity_check, .eo_fill_root_el = ocfs2_xattr_tree_fill_root_el, + .eo_fill_max_leaf_clusters = ocfs2_xattr_tree_fill_max_leaf_clusters, }; static void ocfs2_get_extent_tree(struct ocfs2_extent_tree *et, @@ -254,7 +265,6 @@ static void ocfs2_get_extent_tree(struct ocfs2_extent_tree *et, et->et_type = et_type; get_bh(bh); et->et_root_bh = bh; - et->et_max_leaf_clusters = 0; if (!obj) obj = (void *)bh->b_data; et->et_object = obj; @@ -265,11 +275,13 @@ static void ocfs2_get_extent_tree(struct ocfs2_extent_tree *et, et->et_ops = &ocfs2_xattr_et_ops; } else if (et_type == OCFS2_XATTR_TREE_EXTENT) { et->et_ops = &ocfs2_xattr_tree_et_ops; - et->et_max_leaf_clusters = ocfs2_clusters_for_bytes(inode->i_sb, - OCFS2_MAX_XATTR_TREE_LEAF_SIZE); } et->et_ops->eo_fill_root_el(et); + if (!et->et_ops->eo_fill_max_leaf_clusters) + et->et_max_leaf_clusters = 0; + else + et->et_ops->eo_fill_max_leaf_clusters(inode, et); } static void ocfs2_put_extent_tree(struct ocfs2_extent_tree *et) -- cgit v1.2.3