btrfs-progs: Add extra chunk item check to avoid btrfs-progs crash.

[platform/upstream/btrfs-progs.git] / volumes.h

diff --git a/volumes.h b/volumes.h
index 59d00b6..40ed123 100644 (file)
--- a/volumes.h
+++ b/volumes.h
@@ -16,8 +16,10 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#ifndef __BTRFS_VOLUMES_
-#define __BTRFS_VOLUMES_
+#ifndef __BTRFS_VOLUMES_H__
+#define __BTRFS_VOLUMES_H__
+
+#define BTRFS_STRIPE_LEN       (64 * 1024)
 
 struct btrfs_device {
        struct list_head dev_list;
@@ -37,6 +39,8 @@ struct btrfs_device {
        u64 total_devs;
        u64 super_bytes_used;
 
+       u64 generation;
+
        /* the internal btrfs device id */
        u64 devid;
 
@@ -65,7 +69,7 @@ struct btrfs_device {
 struct btrfs_fs_devices {
        u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
 
-       /* the device with this id has the most recent coyp of the super */
+       /* the device with this id has the most recent copy of the super */
        u64 latest_devid;
        u64 latest_trans;
        u64 lowest_devid;
@@ -103,6 +107,8 @@ struct map_lookup {
 
 #define btrfs_multi_bio_size(n) (sizeof(struct btrfs_multi_bio) + \
                            (sizeof(struct btrfs_bio_stripe) * (n)))
+#define btrfs_map_lookup_size(n) (sizeof(struct map_lookup) + \
+                                (sizeof(struct btrfs_bio_stripe) * (n)))
 
 /*
  * Restriper's general type filter
@@ -126,6 +132,7 @@ struct map_lookup {
 #define BTRFS_BALANCE_ARGS_DEVID       (1ULL << 2)
 #define BTRFS_BALANCE_ARGS_DRANGE      (1ULL << 3)
 #define BTRFS_BALANCE_ARGS_VRANGE      (1ULL << 4)
+#define BTRFS_BALANCE_ARGS_LIMIT       (1ULL << 5)
 
 /*
  * Profile changing flags.  When SOFT is set we won't relocate chunk if
@@ -139,11 +146,6 @@ struct map_lookup {
 #define BTRFS_RAID6_Q_STRIPE ((u64)-1)
 
 
-int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
-                          struct btrfs_device *device,
-                          u64 chunk_tree, u64 chunk_objectid,
-                          u64 chunk_offset,
-                          u64 num_bytes, u64 *start);
 int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
                      u64 logical, u64 *length, u64 *type,
                      struct btrfs_multi_bio **multi_ret, int mirror_num,
@@ -179,13 +181,20 @@ 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);
+                         u64 *total_devs, u64 super_offset, int super_recover);
 int btrfs_num_copies(struct btrfs_mapping_tree *map_tree, u64 logical, u64 len);
-int btrfs_bootstrap_super_map(struct btrfs_mapping_tree *map_tree,
-                             struct btrfs_fs_devices *fs_devices);
 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,
                           struct btrfs_chunk *chunk, int item_size);
 int btrfs_chunk_readonly(struct btrfs_root *root, 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,
+                                      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);
 #endif