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-rw-r--r--fs/btrfs/volumes.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 7fb59d4..cc2eada 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -126,6 +126,7 @@ struct btrfs_fs_devices {
struct btrfs_bio_stripe {
struct btrfs_device *dev;
u64 physical;
+ u64 length; /* only used for discard mappings */
};
struct btrfs_multi_bio {
@@ -145,6 +146,17 @@ struct btrfs_device_info {
u64 max_avail;
};
+struct map_lookup {
+ u64 type;
+ int io_align;
+ int io_width;
+ int stripe_len;
+ int sector_size;
+ int num_stripes;
+ int sub_stripes;
+ struct btrfs_bio_stripe stripes[];
+};
+
/* Used to sort the devices by max_avail(descending sort) */
int btrfs_cmp_device_free_bytes(const void *dev_info1, const void *dev_info2);