btrfs-progs: alias btrfs device delete to btrfs device remove

[platform/upstream/btrfs-progs.git] / disk-io.h

diff --git a/disk-io.h b/disk-io.h
index 53df8f0..d3e3aaa 100644 (file)
--- a/disk-io.h
+++ b/disk-io.h
@@ -19,6 +19,9 @@
 #ifndef __BTRFS_DISK_IO_H__
 #define __BTRFS_DISK_IO_H__
 
+#include "kerncompat.h"
+#include "ctree.h"
+
 #define BTRFS_SUPER_INFO_OFFSET (64 * 1024)
 #define BTRFS_SUPER_INFO_SIZE 4096
 
@@ -34,6 +37,23 @@ enum btrfs_open_ctree_flags {
        OPEN_CTREE_NO_BLOCK_GROUPS      = (1 << 5),
        OPEN_CTREE_EXCLUSIVE            = (1 << 6),
        OPEN_CTREE_NO_DEVICES           = (1 << 7),
+       /*
+        * Don't print error messages if bytenr or checksums do not match in
+        * tree block headers. Turn on by OPEN_CTREE_SUPPRESS_ERROR
+        */
+       OPEN_CTREE_SUPPRESS_CHECK_BLOCK_ERRORS  = (1 << 8),
+       /* Return chunk root */
+       __OPEN_CTREE_RETURN_CHUNK_ROOT  = (1 << 9),
+       OPEN_CTREE_CHUNK_ROOT_ONLY      = OPEN_CTREE_PARTIAL +
+                                         OPEN_CTREE_SUPPRESS_CHECK_BLOCK_ERRORS +
+                                         __OPEN_CTREE_RETURN_CHUNK_ROOT,
+       /*
+        * TODO: cleanup: Split the open_ctree_flags into more indepent
+        * tree bits.
+        * Like split PARTIAL into SKIP_CSUM/SKIP_EXTENT
+        */
+
+       OPEN_CTREE_IGNORE_FSID_MISMATCH = (1 << 10)
 };
 
 static inline u64 btrfs_sb_offset(int mirror)
@@ -49,6 +69,8 @@ struct btrfs_device;
 int read_whole_eb(struct btrfs_fs_info *info, struct extent_buffer *eb, int mirror);
 struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
                                      u32 blocksize, u64 parent_transid);
+int read_extent_data(struct btrfs_root *root, char *data, u64 logical,
+                    u64 *len, int mirror);
 void 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,
@@ -109,6 +131,9 @@ int csum_tree_block_size(struct extent_buffer *buf, u16 csum_sectorsize,
                         int verify);
 int verify_tree_block_csum_silent(struct extent_buffer *buf, u16 csum_size);
 int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid);
+int write_tree_block(struct btrfs_trans_handle *trans,
+                    struct btrfs_root *root,
+                    struct extent_buffer *eb);
 int write_and_map_eb(struct btrfs_trans_handle *trans, struct btrfs_root *root,
                     struct extent_buffer *eb);