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authorChris Mason <chris.mason@oracle.com>2008-03-24 22:01:56 +0300
committerChris Mason <chris.mason@oracle.com>2008-09-25 19:04:00 +0400
commit0b86a832a1f38abec695864ec2eaedc9d2383f1b (patch)
tree8ec0db0b55f77eb6a23fe7db3c1064d298db55c1 /fs/btrfs/disk-io.h
parent7f93bf8d27653726e3721c01fefc523487ecf2af (diff)
downloadlinux-0b86a832a1f38abec695864ec2eaedc9d2383f1b.tar.xz
Btrfs: Add support for multiple devices per filesystem
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.h')
-rw-r--r--fs/btrfs/disk-io.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 828f3a2081b6..206cb48638f7 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -20,6 +20,7 @@
#define __DISKIO__
#define BTRFS_SUPER_INFO_OFFSET (16 * 1024)
+struct btrfs_device;
struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
u32 blocksize);
@@ -65,4 +66,5 @@ int btrfs_read_buffer(struct extent_buffer *buf);
u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len);
void btrfs_csum_final(u32 crc, char *result);
void btrfs_throttle(struct btrfs_root *root);
+int btrfs_open_device(struct btrfs_device *dev);
#endif