btrfs: Add handler for invalidate page

[deliverable/linux.git] / fs / btrfs / volumes.h

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 2ca784a14e84bc2a00d0c3d1ec1a15290128edfc..99c208f6718d03353364d198ffa292f8bfa25a06 100644 (file)
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -256,7 +256,7 @@ struct btrfs_fs_devices {
 
        struct btrfs_fs_info *fs_info;
        /* sysfs kobjects */
-       struct kobject super_kobj;
+       struct kobject fsid_kobj;
        struct kobject *device_dir_kobj;
        struct completion kobj_unregister;
 };
@@ -334,10 +334,15 @@ struct btrfs_raid_attr {
        int dev_stripes;        /* stripes per dev */
        int devs_max;           /* max devs to use */
        int devs_min;           /* min devs needed */
+       int tolerated_failures; /* max tolerated fail devs */
        int devs_increment;     /* ndevs has to be a multiple of this */
        int ncopies;            /* how many copies to data has */
 };
 
+extern const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES];
+
+extern const u64 btrfs_raid_group[BTRFS_NR_RAID_TYPES];
+
 struct map_lookup {
        u64 type;
        int io_align;
@@ -474,7 +479,7 @@ void btrfs_destroy_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
                                      struct btrfs_device *tgtdev);
 void btrfs_init_dev_replace_tgtdev_for_resume(struct btrfs_fs_info *fs_info,
                                              struct btrfs_device *tgtdev);
-int btrfs_scratch_superblock(struct btrfs_device *device);
+void btrfs_scratch_superblocks(struct block_device *bdev, char *device_path);
 int btrfs_is_parity_mirror(struct btrfs_mapping_tree *map_tree,
                           u64 logical, u64 len, int mirror_num);
 unsigned long btrfs_full_stripe_len(struct btrfs_root *root,
@@ -547,5 +552,6 @@ static inline void unlock_chunks(struct btrfs_root *root)
 struct list_head *btrfs_get_fs_uuids(void);
 void btrfs_set_fs_info_ptr(struct btrfs_fs_info *fs_info);
 void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info);
+void btrfs_close_one_device(struct btrfs_device *device);
 
 #endif