From: Marcos Paulo de Souza <mpdesouza@xxxxxxxx>
This ioctl will make possible to delete a subvolume/snapshot by using
the subvolume id.
Signed-off-by: Marcos Paulo de Souza <mpdesouza@xxxxxxxx>
---
Changes from v1:
* Moved subvolid member to the same union containing name and devid (David)
* Changed BTRFS_SUBVOL_DELETE_BY_ID to BTRFS_SUBVOL_SPEC_BY_ID (David,
Christoph)
libbtrfsutil/btrfs.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/libbtrfsutil/btrfs.h b/libbtrfsutil/btrfs.h
index c9a61b30..d1206410 100644
--- a/libbtrfsutil/btrfs.h
+++ b/libbtrfsutil/btrfs.h
@@ -36,12 +36,14 @@ struct btrfs_ioctl_vol_args {
#define BTRFS_DEVICE_PATH_NAME_MAX 1024
#define BTRFS_DEVICE_SPEC_BY_ID (1ULL << 3)
+#define BTRFS_SUBVOL_SPEC_BY_ID (1ULL << 4)
#define BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED \
(BTRFS_SUBVOL_CREATE_ASYNC | \
BTRFS_SUBVOL_RDONLY | \
BTRFS_SUBVOL_QGROUP_INHERIT | \
- BTRFS_DEVICE_SPEC_BY_ID)
+ BTRFS_DEVICE_SPEC_BY_ID | \
+ BTRFS_SUBVOL_SPEC_BY_ID)
#define BTRFS_FSID_SIZE 16
#define BTRFS_UUID_SIZE 16
@@ -119,6 +121,7 @@ struct btrfs_ioctl_vol_args_v2 {
};
union {
char name[BTRFS_SUBVOL_NAME_MAX + 1];
+ __u64 subvolid;
__u64 devid;
};
};
@@ -942,5 +945,7 @@ enum btrfs_err_code {
struct btrfs_ioctl_get_subvol_rootref_args)
#define BTRFS_IOC_INO_LOOKUP_USER _IOWR(BTRFS_IOCTL_MAGIC, 62, \
struct btrfs_ioctl_ino_lookup_user_args)
+#define BTRFS_IOC_SNAP_DESTROY_V2 _IOW(BTRFS_IOCTL_MAGIC, 63, \
+ struct btrfs_ioctl_vol_args_v2)
#endif /* _LINUX_BTRFS_H */
--
2.24.0
