[PATCH 02/13] btrfs-progs: store LEAF_DATA_SIZE in the mkfs_config

[Josef Bacik <josef@toxicpanda.com>]

We use __BTRFS_LEAF_DATA_SIZE() in a few places for mkfs.  With extent
tree v2 we'll be increasing the size of btrfs_header, so it'll be kind
of annoying to add flags to all callers of __BTRFS_LEAF_DATA_SIZE, so
simply calculate it once and put it in the mkfs_config and use that.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 mkfs/common.c | 9 ++++-----
 mkfs/common.h | 1 +
 mkfs/main.c   | 1 +
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/mkfs/common.c b/mkfs/common.c
index 9608d27f..aee4b9fb 100644
--- a/mkfs/common.c
+++ b/mkfs/common.c
@@ -93,7 +93,7 @@ static int btrfs_create_tree_root(int fd, struct btrfs_mkfs_config *cfg,
 
 	btrfs_set_disk_key_type(&disk_key, BTRFS_ROOT_ITEM_KEY);
 	btrfs_set_disk_key_offset(&disk_key, 0);
-	itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) - sizeof(root_item);
+	itemoff = cfg->leaf_data_size - sizeof(root_item);
 
 	for (i = 0; i < blocks_nr; i++) {
 		blk = blocks[i];
@@ -148,7 +148,7 @@ static int create_free_space_tree(int fd, struct btrfs_mkfs_config *cfg,
 {
 	struct btrfs_free_space_info *info;
 	struct btrfs_disk_key disk_key;
-	int itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize);
+	int itemoff = cfg->leaf_data_size;
 	int nritems = 0;
 	int ret;
 
@@ -427,7 +427,7 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
 		cfg->nodesize - sizeof(struct btrfs_header));
 	nritems = 0;
 	item_size = sizeof(*dev_item);
-	itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) - item_size;
+	itemoff = cfg->leaf_data_size - item_size;
 
 	/* first device 1 (there is no device 0) */
 	btrfs_set_disk_key_objectid(&disk_key, BTRFS_DEV_ITEMS_OBJECTID);
@@ -515,8 +515,7 @@ int make_btrfs(int fd, struct btrfs_mkfs_config *cfg)
 	memset(buf->data + sizeof(struct btrfs_header), 0,
 		cfg->nodesize - sizeof(struct btrfs_header));
 	nritems = 0;
-	itemoff = __BTRFS_LEAF_DATA_SIZE(cfg->nodesize) -
-		sizeof(struct btrfs_dev_extent);
+	itemoff = cfg->leaf_data_size - sizeof(struct btrfs_dev_extent);
 
 	btrfs_set_disk_key_objectid(&disk_key, 1);
 	btrfs_set_disk_key_offset(&disk_key, system_group_offset);
diff --git a/mkfs/common.h b/mkfs/common.h
index 66c9d9d0..428cd366 100644
--- a/mkfs/common.h
+++ b/mkfs/common.h
@@ -76,6 +76,7 @@ struct btrfs_mkfs_config {
 	u32 nodesize;
 	u32 sectorsize;
 	u32 stripesize;
+	u32 leaf_data_size;
 	/* Bitfield of incompat features, BTRFS_FEATURE_INCOMPAT_* */
 	u64 features;
 	/* Bitfield of BTRFS_RUNTIME_FEATURE_* */
diff --git a/mkfs/main.c b/mkfs/main.c
index f9e8be74..3dd06979 100644
--- a/mkfs/main.c
+++ b/mkfs/main.c
@@ -1413,6 +1413,7 @@ int BOX_MAIN(mkfs)(int argc, char **argv)
 	mkfs_cfg.features = features;
 	mkfs_cfg.runtime_features = runtime_features;
 	mkfs_cfg.csum_type = csum_type;
+	mkfs_cfg.leaf_data_size = __BTRFS_LEAF_DATA_SIZE(nodesize);
 	if (zoned)
 		mkfs_cfg.zone_size = zone_size(file);
 	else
-- 
2.26.3