Btrfs: Add simple stripe size parameter

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 10 insertions, 5 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index eef4ab56b9c..60a30da6af0 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -355,7 +355,7 @@ int wait_on_tree_block_writeback(struct btrfs_root *root,
 }
 
 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 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
         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 @@ static int find_and_setup_root(struct btrfs_root *tree_root,
         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 @@ struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_fs_info *fs_info,
         }
 
         __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 @@ struct btrfs_root *open_ctree(struct super_block *sb)
         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 @@ struct btrfs_root *open_ctree(struct super_block *sb)
                 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 @@ struct btrfs_root *open_ctree(struct super_block *sb)
         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,