#include "kerncompat.h"
#include "ctree.h"
-#define BTRFS_STRIPE_LEN (64 * 1024)
+#define BTRFS_STRIPE_LEN SZ_64K
struct btrfs_device {
struct list_head dev_list;
* Check if the given range cross stripes.
* To ensure kernel scrub won't causing bug on with METADATA in mixed
* block group
+ *
+ * Return 1 if the range crosses STRIPE boundary
+ * Return 0 if the range doesn't cross STRIPE boundary or it
+ * doesn't belong to any block group (no boundary to cross)
*/
-static inline int check_crossing_stripes(u64 start, u64 len)
+static inline int check_crossing_stripes(struct btrfs_fs_info *fs_info,
+ u64 start, u64 len)
{
- return (start / BTRFS_STRIPE_LEN) !=
- ((start + len - 1) / BTRFS_STRIPE_LEN);
+ struct btrfs_block_group_cache *bg_cache;
+ u64 bg_offset;
+
+ bg_cache = btrfs_lookup_block_group(fs_info, start);
+ /*
+ * Does not belong to block group, no boundary to cross
+ * although it's a bigger problem, but here we don't care.
+ */
+ if (!bg_cache)
+ return 0;
+ bg_offset = start - bg_cache->key.objectid;
+
+ return (bg_offset / BTRFS_STRIPE_LEN !=
+ (bg_offset + len - 1) / BTRFS_STRIPE_LEN);
}
-int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
+int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
u64 logical, u64 *length, u64 *type,
struct btrfs_multi_bio **multi_ret, int mirror_num,
u64 **raid_map);
-int btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
+int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
u64 logical, u64 *length,
struct btrfs_multi_bio **multi_ret, int mirror_num,
u64 **raid_map_ret);
-int btrfs_next_bg(struct btrfs_mapping_tree *map_tree, u64 *logical,
+int btrfs_next_bg(struct btrfs_fs_info *map_tree, u64 *logical,
u64 *size, u64 type);
-static inline int btrfs_next_bg_metadata(struct btrfs_mapping_tree *map_tree,
- u64 *logical, u64 *size)
+static inline int btrfs_next_bg_metadata(struct btrfs_fs_info *fs_info,
+ u64 *logical, u64 *size)
{
- return btrfs_next_bg(map_tree, logical, size,
+ return btrfs_next_bg(fs_info, logical, size,
BTRFS_BLOCK_GROUP_METADATA);
}
-static inline int btrfs_next_bg_system(struct btrfs_mapping_tree *map_tree,
- u64 *logical, u64 *size)
+static inline int btrfs_next_bg_system(struct btrfs_fs_info *fs_info,
+ u64 *logical, u64 *size)
{
- return btrfs_next_bg(map_tree, logical, size,
+ return btrfs_next_bg(fs_info, logical, size,
BTRFS_BLOCK_GROUP_SYSTEM);
}
-int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,
+int btrfs_rmap_block(struct btrfs_fs_info *fs_info,
u64 chunk_start, u64 physical, u64 devid,
u64 **logical, int *naddrs, int *stripe_len);
-int btrfs_read_sys_array(struct btrfs_root *root);
-int btrfs_read_chunk_tree(struct btrfs_root *root);
+int btrfs_read_sys_array(struct btrfs_fs_info *fs_info);
+int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info);
int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
- struct btrfs_root *extent_root, u64 *start,
+ struct btrfs_fs_info *fs_info, u64 *start,
u64 *num_bytes, u64 type);
int btrfs_alloc_data_chunk(struct btrfs_trans_handle *trans,
- struct btrfs_root *extent_root, u64 *start,
+ struct btrfs_fs_info *fs_info, u64 *start,
u64 num_bytes, u64 type, int convert);
-int btrfs_read_super_device(struct btrfs_root *root, struct extent_buffer *buf);
-int btrfs_add_device(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct btrfs_device *device);
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
int flags);
int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
void btrfs_close_all_devices(void);
int btrfs_add_device(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
+ struct btrfs_fs_info *fs_info,
struct btrfs_device *device);
int btrfs_update_device(struct btrfs_trans_handle *trans,
struct btrfs_device *device);
int btrfs_scan_one_device(int fd, const char *path,
struct btrfs_fs_devices **fs_devices_ret,
- u64 *total_devs, u64 super_offset, int super_recover);
-int btrfs_num_copies(struct btrfs_mapping_tree *map_tree, u64 logical, u64 len);
+ u64 *total_devs, u64 super_offset, unsigned sbflags);
+int btrfs_num_copies(struct btrfs_fs_info *fs_info, u64 logical, u64 len);
struct list_head *btrfs_scanned_uuids(void);
-int btrfs_add_system_chunk(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct btrfs_key *key,
+int btrfs_add_system_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key,
struct btrfs_chunk *chunk, int item_size);
-int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset);
+int btrfs_chunk_readonly(struct btrfs_fs_info *fs_info, u64 chunk_offset);
struct btrfs_device *
btrfs_find_device_by_devid(struct btrfs_fs_devices *fs_devices,
u64 devid, int instance);
-struct btrfs_device *btrfs_find_device(struct btrfs_root *root, u64 devid,
+struct btrfs_device *btrfs_find_device(struct btrfs_fs_info *fs_info, u64 devid,
u8 *uuid, u8 *fsid);
int write_raid56_with_parity(struct btrfs_fs_info *info,
struct extent_buffer *eb,
struct btrfs_multi_bio *multi,
u64 stripe_len, u64 *raid_map);
+int btrfs_check_chunk_valid(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *leaf,
+ struct btrfs_chunk *chunk,
+ int slot, u64 logical);
+u64 btrfs_stripe_length(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *leaf,
+ struct btrfs_chunk *chunk);
+int btrfs_fix_device_size(struct btrfs_fs_info *fs_info,
+ struct btrfs_device *device);
+int btrfs_fix_super_size(struct btrfs_fs_info *fs_info);
+int btrfs_fix_device_and_super_size(struct btrfs_fs_info *fs_info);
#endif
projects / platform / upstream / btrfs-progs.git / blobdiff