btrfs-progs: add new dev replace result

[platform/upstream/btrfs-progs.git] / ioctl.h

diff --git a/ioctl.h b/ioctl.h
index 1ee631a..67c8de9 100644 (file)
--- a/ioctl.h
+++ b/ioctl.h
@@ -141,9 +141,11 @@ struct btrfs_ioctl_dev_replace_status_params {
 #define BTRFS_IOCTL_DEV_REPLACE_CMD_START                      0
 #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS                     1
 #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL                     2
+#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_RESULT               -1
 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR                        0
 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED             1
 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED         2
+#define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS                3
 struct btrfs_ioctl_dev_replace_args {
        __u64 cmd;      /* in */
        __u64 result;   /* out */
@@ -194,7 +196,9 @@ struct btrfs_balance_args {
 
        __u64 flags;
 
-       __u64 unused[8];
+       __u64 limit;
+
+       __u64 unused[7];
 } __attribute__ ((__packed__));
 
 struct btrfs_balance_progress {
@@ -373,7 +377,20 @@ struct btrfs_ioctl_received_subvol_args {
  * search of clone sources doesn't find an extent. UPDATE_EXTENT
  * commands will be sent instead of WRITE commands.
  */
-#define        BTRFS_SEND_FLAG_NO_FILE_DATA    0x1
+#define BTRFS_SEND_FLAG_NO_FILE_DATA           0x1
+
+/*
+ * Do not add the leading stream header. Used when multiple snapshots
+ * are sent back to back.
+ */
+#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER     0x2
+
+/*
+ * Omit the command at the end of the stream that indicated the end
+ * of the stream. This option is used when multiple snapshots are
+ * sent back to back.
+ */
+#define BTRFS_SEND_FLAG_OMIT_END_CMD           0x4
 
 struct btrfs_ioctl_send_args {
        __s64 send_fd;                  /* in */
@@ -429,6 +446,7 @@ struct btrfs_ioctl_quota_ctl_args {
 struct btrfs_ioctl_quota_rescan_args {
        __u64   flags;
        __u64   progress;
+       __u64   reserved[6];
 };
 
 struct btrfs_ioctl_qgroup_assign_args {
@@ -441,6 +459,48 @@ struct btrfs_ioctl_qgroup_create_args {
        __u64 create;
        __u64 qgroupid;
 };
+
+/* Error codes as returned by the kernel */
+enum btrfs_err_code {
+       notused,
+       BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
+       BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
+       BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
+       BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
+       BTRFS_ERROR_DEV_TGT_REPLACE,
+       BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
+       BTRFS_ERROR_DEV_ONLY_WRITABLE,
+       BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
+};
+
+/* An error code to error string mapping for the kernel
+*  error codes
+*/
+static inline char *btrfs_err_str(enum btrfs_err_code err_code)
+{
+       switch (err_code) {
+               case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
+                       return "unable to go below two devices on raid1";
+               case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
+                       return "unable to go below four devices on raid10";
+               case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
+                       return "unable to go below two devices on raid5";
+               case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
+                       return "unable to go below three devices on raid6";
+               case BTRFS_ERROR_DEV_TGT_REPLACE:
+                       return "unable to remove the dev_replace target dev";
+               case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
+                       return "no missing devices found to remove";
+               case BTRFS_ERROR_DEV_ONLY_WRITABLE:
+                       return "unable to remove the only writeable device";
+               case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
+                       return "add/delete/balance/replace/resize operation "
+                               "in progress";
+               default:
+                       return NULL;
+       }
+}
+
 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
                                   struct btrfs_ioctl_vol_args)
 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
@@ -450,6 +510,7 @@ struct btrfs_ioctl_qgroup_create_args {
 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
                                   struct btrfs_ioctl_vol_args)
 
+/* With a @src_length of zero, the range from @src_offset->EOF is cloned! */
 struct btrfs_ioctl_clone_range_args {
        __s64 src_fd;
        __u64 src_offset, src_length;
@@ -483,9 +544,11 @@ struct btrfs_ioctl_clone_range_args {
                                   struct btrfs_ioctl_search_args)
 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
                                   struct btrfs_ioctl_ino_lookup_args)
-#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64)
+#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
                                    struct btrfs_ioctl_space_args)
+#define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
+#define BTRFS_IOC_WAIT_SYNC  _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
                                   struct btrfs_ioctl_vol_args_v2)
 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
@@ -528,6 +591,7 @@ struct btrfs_ioctl_clone_range_args {
                               struct btrfs_ioctl_quota_rescan_args)
 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
                               struct btrfs_ioctl_quota_rescan_args)
+#define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
                                   char[BTRFS_LABEL_SIZE])
 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
@@ -536,7 +600,12 @@ struct btrfs_ioctl_clone_range_args {
                                      struct btrfs_ioctl_get_dev_stats)
 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
                                    struct btrfs_ioctl_dev_replace_args)
-
+#define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
+                                  struct btrfs_ioctl_feature_flags)
+#define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
+                                  struct btrfs_ioctl_feature_flags[2])
+#define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
+                                  struct btrfs_ioctl_feature_flags[3])
 #ifdef __cplusplus
 }
 #endif