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authorChris Mason <chris.mason@oracle.com>2008-05-12 20:59:19 +0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 19:04:03 +0400
commitca7a79ad8dbe24669a8ced01f9fc0126b872745d (patch)
tree0d53d8e6fd9ff9aece4e703581918c7817175d5d /fs/btrfs/disk-io.h
parent188de649c51f03df3f8a601aea0110a3870815c2 (diff)
downloadlinux-ca7a79ad8dbe24669a8ced01f9fc0126b872745d.tar.xz
Btrfs: Pass down the expected generation number when reading tree blocks
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.h')
-rw-r--r--fs/btrfs/disk-io.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 5d5f6979c41c..e29c895d5230 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -25,8 +25,9 @@ struct btrfs_device;
struct btrfs_fs_devices;
struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
- u32 blocksize);
-int readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize);
+ u32 blocksize, u64 parent_transid);
+int readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize,
+ u64 parent_transid);
struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
u64 bytenr, u32 blocksize);
int clean_tree_block(struct btrfs_trans_handle *trans,
@@ -65,7 +66,7 @@ int btrfs_buffer_defrag(struct extent_buffer *buf);
int btrfs_buffer_defrag_done(struct extent_buffer *buf);
int btrfs_clear_buffer_defrag(struct extent_buffer *buf);
int btrfs_clear_buffer_defrag_done(struct extent_buffer *buf);
-int btrfs_read_buffer(struct extent_buffer *buf);
+int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid);
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);