OpenZFS 7614, 9064 - zfs device evacuation/removal

[mirror_zfs.git] / include / sys / fs / zfs.h

diff --git a/include/sys/fs/zfs.h b/include/sys/fs/zfs.h
index e40c427f61d9729acc340bd35005e8400d18e790..de3b729ebe047468d31c0452383e4a2c709a908a 100644 (file)
--- a/include/sys/fs/zfs.h
+++ b/include/sys/fs/zfs.h
@@ -180,6 +180,7 @@ typedef enum {
        ZFS_PROP_ENCRYPTION_ROOT,
        ZFS_PROP_KEY_GUID,
        ZFS_PROP_KEYSTATUS,
+       ZFS_PROP_REMAPTXG,              /* not exposed to the user */
        ZFS_NUM_PROPS
 } zfs_prop_t;
 
@@ -587,7 +588,9 @@ typedef struct zpool_rewind_policy {
 
 /*
  * The following are configuration names used in the nvlist describing a pool's
- * configuration.
+ * configuration.  New on-disk names should be prefixed with "<reverse-DNS>:"
+ * (e.g. "org.open-zfs:") to avoid conflicting names being developed
+ * independently.
  */
 #define        ZPOOL_CONFIG_VERSION            "version"
 #define        ZPOOL_CONFIG_POOL_NAME          "name"
@@ -601,6 +604,9 @@ typedef struct zpool_rewind_policy {
 #define        ZPOOL_CONFIG_CHILDREN           "children"
 #define        ZPOOL_CONFIG_ID                 "id"
 #define        ZPOOL_CONFIG_GUID               "guid"
+#define        ZPOOL_CONFIG_INDIRECT_OBJECT    "com.delphix:indirect_object"
+#define        ZPOOL_CONFIG_INDIRECT_BIRTHS    "com.delphix:indirect_births"
+#define        ZPOOL_CONFIG_PREV_INDIRECT_VDEV "com.delphix:prev_indirect_vdev"
 #define        ZPOOL_CONFIG_PATH               "path"
 #define        ZPOOL_CONFIG_DEVID              "devid"
 #define        ZPOOL_CONFIG_METASLAB_ARRAY     "metaslab_array"
@@ -609,7 +615,9 @@ typedef struct zpool_rewind_policy {
 #define        ZPOOL_CONFIG_ASIZE              "asize"
 #define        ZPOOL_CONFIG_DTL                "DTL"
 #define        ZPOOL_CONFIG_SCAN_STATS         "scan_stats"    /* not stored on disk */
+#define        ZPOOL_CONFIG_REMOVAL_STATS      "removal_stats" /* not stored on disk */
 #define        ZPOOL_CONFIG_VDEV_STATS         "vdev_stats"    /* not stored on disk */
+#define        ZPOOL_CONFIG_INDIRECT_SIZE      "indirect_size" /* not stored on disk */
 
 /* container nvlist of extended stats */
 #define        ZPOOL_CONFIG_VDEV_STATS_EX      "vdev_stats_ex"
@@ -736,6 +744,13 @@ typedef struct zpool_rewind_policy {
 #define        VDEV_TYPE_SPARE                 "spare"
 #define        VDEV_TYPE_LOG                   "log"
 #define        VDEV_TYPE_L2CACHE               "l2cache"
+#define        VDEV_TYPE_INDIRECT              "indirect"
+
+/* VDEV_TOP_ZAP_* are used in top-level vdev ZAP objects. */
+#define        VDEV_TOP_ZAP_INDIRECT_OBSOLETE_SM \
+       "com.delphix:indirect_obsolete_sm"
+#define        VDEV_TOP_ZAP_OBSOLETE_COUNTS_ARE_PRECISE \
+       "com.delphix:obsolete_counts_are_precise"
 
 /*
  * This is needed in userland to report the minimum necessary device size.
@@ -884,6 +899,20 @@ typedef struct pool_scan_stat {
        uint64_t        pss_issued;     /* total bytes checked by scanner */
 } pool_scan_stat_t;
 
+typedef struct pool_removal_stat {
+       uint64_t prs_state; /* dsl_scan_state_t */
+       uint64_t prs_removing_vdev;
+       uint64_t prs_start_time;
+       uint64_t prs_end_time;
+       uint64_t prs_to_copy; /* bytes that need to be copied */
+       uint64_t prs_copied; /* bytes copied so far */
+       /*
+        * bytes of memory used for indirect mappings.
+        * This includes all removed vdevs.
+        */
+       uint64_t prs_mapping_memory;
+} pool_removal_stat_t;
+
 typedef enum dsl_scan_state {
        DSS_NONE,
        DSS_SCANNING,
@@ -1112,6 +1141,7 @@ typedef enum zfs_ioc {
        ZFS_IOC_LOAD_KEY,
        ZFS_IOC_UNLOAD_KEY,
        ZFS_IOC_CHANGE_KEY,
+       ZFS_IOC_REMAP,
 
        /*
         * Linux - 3/64 numbers reserved.