qcow2: when dissecting qcow2, use btrfs clone ioctls for reflinking blocks to target

[elogind.git] / src / shared / btrfs-util.h

diff --git a/src/shared/btrfs-util.h b/src/shared/btrfs-util.h
index 1bff9171d7e1b96e76455e81021d9abb1dea8d77..28946c60c9ceaa84ad00c0b93352a64c69172f23 100644 (file)
--- a/src/shared/btrfs-util.h
+++ b/src/shared/btrfs-util.h
@@ -55,6 +55,7 @@ int btrfs_subvol_get_info_fd(int fd, BtrfsSubvolInfo *info);
 int btrfs_subvol_get_quota_fd(int fd, BtrfsQuotaInfo *quota);
 
 int btrfs_reflink(int infd, int outfd);
+int btrfs_clone_range(int infd, uint64_t in_offset, int ofd, uint64_t out_offset, uint64_t sz);
 
 int btrfs_get_block_device(const char *path, dev_t *dev);