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authorChris Mason <chris.mason@oracle.com>2007-04-11 15:53:25 -0400
committerDavid Woodhouse <dwmw2@hera.kernel.org>2007-04-11 15:53:25 -0400
commit7eccb903a817e890c947ba4bc90c6a9af9b4219a (patch)
tree0e8553fb8f1dfd701d4e8eacd618ec72a8ec8720 /fs/btrfs/disk-io.h
parent0bd93ba022f5c1ddb4e5b722b02f3c4a4a8865ad (diff)
Btrfs: create a logical->phsyical block number mapping scheme
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.h')
-rw-r--r--fs/btrfs/disk-io.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 0ef6e6f714a..46cc5dc9d57 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -41,4 +41,5 @@ int btrfs_csum_data(struct btrfs_root * root, char *data, size_t len,
char *result);
struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
struct btrfs_key *location);
+u64 bh_blocknr(struct buffer_head *bh);
#endif