Btrfs: Add simple stripe size parameter
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index eef4ab5..60a30da 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -355,7 +355,7 @@
}
static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
- struct btrfs_root *root,
+ u32 stripesize, struct btrfs_root *root,
struct btrfs_fs_info *fs_info,
u64 objectid)
{
@@ -365,6 +365,7 @@
root->sectorsize = sectorsize;
root->nodesize = nodesize;
root->leafsize = leafsize;
+ root->stripesize = stripesize;
root->ref_cows = 0;
root->fs_info = fs_info;
root->objectid = objectid;
@@ -393,7 +394,8 @@
u32 blocksize;
__setup_root(tree_root->nodesize, tree_root->leafsize,
- tree_root->sectorsize, root, fs_info, objectid);
+ tree_root->sectorsize, tree_root->stripesize,
+ root, fs_info, objectid);
ret = btrfs_find_last_root(tree_root, objectid,
&root->root_item, &root->root_key);
BUG_ON(ret);
@@ -430,8 +432,8 @@
}
__setup_root(tree_root->nodesize, tree_root->leafsize,
- tree_root->sectorsize, root, fs_info,
- location->objectid);
+ tree_root->sectorsize, tree_root->stripesize,
+ root, fs_info, location->objectid);
path = btrfs_alloc_path();
BUG_ON(!path);
@@ -537,6 +539,7 @@
u32 nodesize;
u32 leafsize;
u32 blocksize;
+ u32 stripesize;
struct btrfs_root *extent_root = kmalloc(sizeof(struct btrfs_root),
GFP_NOFS);
struct btrfs_root *tree_root = kmalloc(sizeof(struct btrfs_root),
@@ -607,7 +610,7 @@
goto fail_iput;
}
#endif
- __setup_root(512, 512, 512, tree_root,
+ __setup_root(512, 512, 512, 512, tree_root,
fs_info, BTRFS_ROOT_TREE_OBJECTID);
fs_info->sb_buffer = read_tree_block(tree_root,
@@ -630,9 +633,11 @@
nodesize = btrfs_super_nodesize(disk_super);
leafsize = btrfs_super_leafsize(disk_super);
sectorsize = btrfs_super_sectorsize(disk_super);
+ stripesize = btrfs_super_stripesize(disk_super);
tree_root->nodesize = nodesize;
tree_root->leafsize = leafsize;
tree_root->sectorsize = sectorsize;
+ tree_root->stripesize = stripesize;
sb_set_blocksize(sb, sectorsize);
i_size_write(fs_info->btree_inode,