btrfs: introduce device delete by devid

[cascardo/linux.git] / include / uapi / linux / btrfs.h

diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index dea8931..396a4ef 100644 (file)
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -36,6 +36,13 @@ struct btrfs_ioctl_vol_args {
 #define BTRFS_SUBVOL_CREATE_ASYNC      (1ULL << 0)
 #define BTRFS_SUBVOL_RDONLY            (1ULL << 1)
 #define BTRFS_SUBVOL_QGROUP_INHERIT    (1ULL << 2)
+#define BTRFS_DEVICE_BY_ID             (1ULL << 3)
+#define BTRFS_VOL_ARG_V2_FLAGS                         \
+                       (BTRFS_SUBVOL_CREATE_ASYNC |    \
+                       BTRFS_SUBVOL_RDONLY |           \
+                       BTRFS_SUBVOL_QGROUP_INHERIT |   \
+                       BTRFS_DEVICE_BY_ID)
+
 #define BTRFS_FSID_SIZE 16
 #define BTRFS_UUID_SIZE 16
 #define BTRFS_UUID_UNPARSED_SIZE       37
@@ -76,7 +83,10 @@ struct btrfs_ioctl_vol_args_v2 {
                };
                __u64 unused[4];
        };
-       char name[BTRFS_SUBVOL_NAME_MAX + 1];
+       union {
+               char name[BTRFS_SUBVOL_NAME_MAX + 1];
+               u64 devid;
+       };
 };
 
 /*
@@ -659,5 +669,7 @@ static inline char *btrfs_err_str(enum btrfs_err_code err_code)
                                   struct btrfs_ioctl_feature_flags[2])
 #define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
                                   struct btrfs_ioctl_feature_flags[3])
+#define BTRFS_IOC_RM_DEV_V2 _IOW(BTRFS_IOCTL_MAGIC, 58, \
+                                  struct btrfs_ioctl_vol_args_v2)
 
 #endif /* _UAPI_LINUX_BTRFS_H */