Add support for DISCARD to ZVOLs.

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

diff --git a/include/sys/fs/zfs.h b/include/sys/fs/zfs.h
index 25f2562..2b6abbf 100644 (file)
--- a/include/sys/fs/zfs.h
+++ b/include/sys/fs/zfs.h
@@ -21,6 +21,7 @@
 
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011 by Delphix. All rights reserved.
  */
 
 /* Portions Copyright 2010 Robert Milkowski */
@@ -122,6 +123,7 @@ typedef enum {
        ZFS_PROP_DEDUP,
        ZFS_PROP_MLSLABEL,
        ZFS_PROP_SYNC,
+       ZFS_PROP_REFRATIO,
        ZFS_NUM_PROPS
 } zfs_prop_t;
 
@@ -161,6 +163,7 @@ typedef enum {
        ZPOOL_PROP_FREE,
        ZPOOL_PROP_ALLOCATED,
        ZPOOL_PROP_READONLY,
+       ZPOOL_PROP_ASHIFT,
        ZPOOL_NUM_PROPS
 } zpool_prop_t;
 
@@ -306,6 +309,11 @@ typedef enum {
        ZFS_SYNC_DISABLED = 2
 } zfs_sync_type_t;
 
+typedef enum {
+       ZFS_XATTR_OFF = 0,
+       ZFS_XATTR_DIR = 1,
+       ZFS_XATTR_SA = 2
+} zfs_xattr_type_t;
 
 /*
  * On-disk version number.
@@ -707,6 +715,7 @@ typedef struct ddt_histogram {
 #define        ZVOL_MINOR_BITS         4
 #define        ZVOL_MINOR_MASK         ((1U << ZVOL_MINOR_BITS) - 1)
 #define        ZVOL_MINORS             (1 << 4)
+#define        ZVOL_DEV_NAME           "zd"
 
 #define        ZVOL_PROP_NAME          "name"
 #define        ZVOL_DEFAULT_BLOCKSIZE  8192
@@ -782,6 +791,11 @@ typedef enum zfs_ioc {
 } zfs_ioc_t;
 
 /*
+ * zvol ioctl to get dataset name
+ */
+#define BLKZNAME               _IOR(0x12,125,char[ZFS_MAXNAMELEN])
+
+/*
  * Internal SPA load state.  Used by FMA diagnosis engine.
  */
 typedef enum {