commit db94535db75e67fab12ccbb7f5ee548e33fed891
author Chris Mason <chris.mason@oracle.com> Mon Oct 15 16:15:53 2007 -0400
committer Chris Mason <chris.mason@oracle.com> Thu Sep 25 11:03:56 2008 -0400
tree 1ad7dfc82b003294a94ee87d7329b24b902b369f
parent 1a5bc167f6707542b79a55452075525620ed43f5

Btrfs: Allow tree blocks larger than the page size

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

fs/btrfs/super.c

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 39a1435..5c4370f 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -303,10 +303,12 @@
 {
 	struct btrfs_root *root = btrfs_sb(dentry->d_sb);
 	struct btrfs_super_block *disk_super = &root->fs_info->super_copy;
+	int bits = dentry->d_sb->s_blocksize_bits;
 
 	buf->f_namelen = BTRFS_NAME_LEN;
-	buf->f_blocks = btrfs_super_total_blocks(disk_super);
-	buf->f_bfree = buf->f_blocks - btrfs_super_blocks_used(disk_super);
+	buf->f_blocks = btrfs_super_total_bytes(disk_super) >> bits;
+	buf->f_bfree = buf->f_blocks -
+		(btrfs_super_bytes_used(disk_super) >> bits);
 	buf->f_bavail = buf->f_bfree;
 	buf->f_bsize = dentry->d_sb->s_blocksize;
 	buf->f_type = BTRFS_SUPER_MAGIC;