#ifndef __EXTENTMAP__
#define __EXTENTMAP__
+
+#if BTRFS_FLAT_INCLUDES
#include "kerncompat.h"
#include "extent-cache.h"
#include "list.h"
+#else
+#include <btrfs/kerncompat.h>
+#include <btrfs/extent-cache.h>
+#include <btrfs/list.h>
+#endif /* BTRFS_FLAT_INCLUDES */
#define EXTENT_DIRTY 1
#define EXTENT_WRITEBACK (1 << 1)
#define EXTENT_CSUM (1 << 9)
#define EXTENT_IOBITS (EXTENT_LOCKED | EXTENT_WRITEBACK)
+struct btrfs_fs_info;
+
struct extent_io_tree {
struct cache_tree state;
struct cache_tree cache;
u64 end;
int refs;
unsigned long state;
- u64 private;
+ u64 xprivate;
};
struct extent_buffer {
u64 end, gfp_t mask);
int extent_buffer_uptodate(struct extent_buffer *eb);
int set_extent_buffer_uptodate(struct extent_buffer *eb);
-int set_state_private(struct extent_io_tree *tree, u64 start, u64 private);
-int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private);
+int clear_extent_buffer_uptodate(struct extent_io_tree *tree,
+ struct extent_buffer *eb);
+int set_state_private(struct extent_io_tree *tree, u64 start, u64 xprivate);
+int get_state_private(struct extent_io_tree *tree, u64 start, u64 *xprivate);
struct extent_buffer *find_extent_buffer(struct extent_io_tree *tree,
u64 bytenr, u32 blocksize);
struct extent_buffer *find_first_extent_buffer(struct extent_io_tree *tree,
struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree,
u64 bytenr, u32 blocksize);
void free_extent_buffer(struct extent_buffer *eb);
-int read_extent_from_disk(struct extent_buffer *eb);
+int read_extent_from_disk(struct extent_buffer *eb,
+ unsigned long offset, unsigned long len);
int write_extent_to_disk(struct extent_buffer *eb);
int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv,
unsigned long start, unsigned long len);
unsigned long start, unsigned long len);
int set_extent_buffer_dirty(struct extent_buffer *eb);
int clear_extent_buffer_dirty(struct extent_buffer *eb);
+int read_data_from_disk(struct btrfs_fs_info *info, void *buf, u64 offset,
+ u64 bytes, int mirror);
#endif