Merge tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree update from Greg KH:
 "Here's the large staging tree merge for 3.11-rc1

  Huge thing here is the Lustre client code.  Unfortunatly, due to it
  not building properly on a wide variety of different architectures
  (this was production code???), it is currently disabled from the build
  so as to not annoy people.

  Other than Lustre, there are loads of comedi patches, working to clean
  up that subsystem, iio updates and new drivers, and a load of cleanups
  from the OPW applicants in their quest to get a summer internship.

  All of these have been in the linux-next releases for a while (hence
  the Lustre code being disabled)"

Fixed up trivial conflict in drivers/staging/serqt_usb2/serqt_usb2.c due
to independent renamings in the staging driver cleanup and the USB
tree..

* tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (868 commits)
  Revert "Revert "Revert "staging/lustre: drop CONFIG_BROKEN dependency"""
  staging: rtl8192u: fix line length in r819xU_phy.h
  staging: rtl8192u: rename variables in r819xU_phy.h
  staging: rtl8192u: fix comments in r819xU_phy.h
  staging: rtl8192u: fix whitespace in r819xU_phy.h
  staging: rtl8192u: fix newlines in r819xU_phy.c
  staging: comedi: unioxx5: use comedi_alloc_spriv()
  staging: comedi: unioxx5: fix unioxx5_detach()
  silicom: checkpatch: errors caused by macros
  Staging: silicom: remove the board_t typedef in bpctl_mod.c
  Staging: silicom: capitalize labels in the bp_media_type enum
  Staging: silicom: remove bp_media_type enum typedef
  staging: rtl8192u: replace msleep(1) with usleep_range() in r819xU_phy.c
  staging: rtl8192u: rename dwRegRead and rtStatus in r819xU_phy.c
  staging: rtl8192u: replace __FUNCTION__ in r819xU_phy.c
  staging: rtl8192u: limit line size in r819xU_phy.c
  zram: allow request end to coincide with disksize
  staging: drm/imx: use generic irq chip unused field to block out invalid irqs
  staging: drm/imx: use generic irqchip
  staging: drm/imx: ipu-dmfc: use defines for ipu channel numbers
  ...

1 files changed, 1145 insertions, 0 deletions

diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
new file mode 100644
index 000000000000..7e9f57507f04
--- /dev/null
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
@@ -0,0 +1,1145 @@
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2010, 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/include/lustre/lustre_user.h
+ *
+ * Lustre public user-space interface definitions.
+ */
+
+#ifndef _LUSTRE_USER_H
+#define _LUSTRE_USER_H
+
+/** \defgroup lustreuser lustreuser
+ *
+ * @{
+ */
+
+#include <lustre/ll_fiemap.h>
+#include <linux/lustre_user.h>
+
+/* for statfs() */
+#define LL_SUPER_MAGIC 0x0BD00BD0
+
+#ifndef FSFILT_IOC_GETFLAGS
+#define FSFILT_IOC_GETFLAGS	       _IOR('f', 1, long)
+#define FSFILT_IOC_SETFLAGS	       _IOW('f', 2, long)
+#define FSFILT_IOC_GETVERSION	     _IOR('f', 3, long)
+#define FSFILT_IOC_SETVERSION	     _IOW('f', 4, long)
+#define FSFILT_IOC_GETVERSION_OLD	 _IOR('v', 1, long)
+#define FSFILT_IOC_SETVERSION_OLD	 _IOW('v', 2, long)
+#define FSFILT_IOC_FIEMAP		 _IOWR('f', 11, struct ll_user_fiemap)
+#endif
+
+/* FIEMAP flags supported by Lustre */
+#define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
+
+enum obd_statfs_state {
+	OS_STATE_DEGRADED       = 0x00000001, /**< RAID degraded/rebuilding */
+	OS_STATE_READONLY       = 0x00000002, /**< filesystem is read-only */
+	OS_STATE_RDONLY_1       = 0x00000004, /**< obsolete 1.6, was EROFS=30 */
+	OS_STATE_RDONLY_2       = 0x00000008, /**< obsolete 1.6, was EROFS=30 */
+	OS_STATE_RDONLY_3       = 0x00000010, /**< obsolete 1.6, was EROFS=30 */
+};
+
+struct obd_statfs {
+	__u64	   os_type;
+	__u64	   os_blocks;
+	__u64	   os_bfree;
+	__u64	   os_bavail;
+	__u64	   os_files;
+	__u64	   os_ffree;
+	__u8	    os_fsid[40];
+	__u32	   os_bsize;
+	__u32	   os_namelen;
+	__u64	   os_maxbytes;
+	__u32	   os_state;       /**< obd_statfs_state OS_STATE_* flag */
+	__u32	   os_fprecreated;	/* objs available now to the caller */
+					/* used in QoS code to find preferred
+					 * OSTs */
+	__u32	   os_spare2;
+	__u32	   os_spare3;
+	__u32	   os_spare4;
+	__u32	   os_spare5;
+	__u32	   os_spare6;
+	__u32	   os_spare7;
+	__u32	   os_spare8;
+	__u32	   os_spare9;
+};
+
+/**
+ * File IDentifier.
+ *
+ * FID is a cluster-wide unique identifier of a file or an object (stripe).
+ * FIDs are never reused.
+ **/
+struct lu_fid {
+       /**
+	* FID sequence. Sequence is a unit of migration: all files (objects)
+	* with FIDs from a given sequence are stored on the same server.
+	* Lustre should support 2^64 objects, so even if each sequence
+	* has only a single object we can still enumerate 2^64 objects.
+	**/
+	__u64 f_seq;
+	/* FID number within sequence. */
+	__u32 f_oid;
+	/**
+	 * FID version, used to distinguish different versions (in the sense
+	 * of snapshots, etc.) of the same file system object. Not currently
+	 * used.
+	 **/
+	__u32 f_ver;
+};
+
+struct filter_fid {
+	struct lu_fid	ff_parent;  /* ff_parent.f_ver == file stripe number */
+};
+
+/* keep this one for compatibility */
+struct filter_fid_old {
+	struct lu_fid	ff_parent;
+	__u64		ff_objid;
+	__u64		ff_seq;
+};
+
+/* Userspace should treat lu_fid as opaque, and only use the following methods
+ * to print or parse them.  Other functions (e.g. compare, swab) could be moved
+ * here from lustre_idl.h if needed. */
+typedef struct lu_fid lustre_fid;
+
+/**
+ * Following struct for object attributes, that will be kept inode's EA.
+ * Introduced in 2.0 release (please see b15993, for details)
+ * Added to all objects since Lustre 2.4 as contains self FID
+ */
+struct lustre_mdt_attrs {
+	/**
+	 * Bitfield for supported data in this structure. From enum lma_compat.
+	 * lma_self_fid and lma_flags are always available.
+	 */
+	__u32   lma_compat;
+	/**
+	 * Per-file incompat feature list. Lustre version should support all
+	 * flags set in this field. The supported feature mask is available in
+	 * LMA_INCOMPAT_SUPP.
+	 */
+	__u32   lma_incompat;
+	/** FID of this inode */
+	struct lu_fid  lma_self_fid;
+};
+
+/**
+ * Prior to 2.4, the LMA structure also included SOM attributes which has since
+ * been moved to a dedicated xattr
+ * lma_flags was also removed because of lma_compat/incompat fields.
+ */
+#define LMA_OLD_SIZE (sizeof(struct lustre_mdt_attrs) + 5 * sizeof(__u64))
+
+/**
+ * OST object IDentifier.
+ */
+struct ost_id {
+	union {
+		struct ostid {
+			__u64	oi_id;
+			__u64	oi_seq;
+		} oi;
+		struct lu_fid oi_fid;
+	};
+};
+
+#define DOSTID LPX64":"LPU64
+#define POSTID(oi) ostid_seq(oi), ostid_id(oi)
+
+/*
+ * The ioctl naming rules:
+ * LL_*     - works on the currently opened filehandle instead of parent dir
+ * *_OBD_*  - gets data for both OSC or MDC (LOV, LMV indirectly)
+ * *_MDC_*  - gets/sets data related to MDC
+ * *_LOV_*  - gets/sets data related to OSC/LOV
+ * *FILE*   - called on parent dir and passes in a filename
+ * *STRIPE* - set/get lov_user_md
+ * *INFO    - set/get lov_user_mds_data
+ */
+/* see <lustre_lib.h> for ioctl numberss 101-150 */
+#define LL_IOC_GETFLAGS		 _IOR ('f', 151, long)
+#define LL_IOC_SETFLAGS		 _IOW ('f', 152, long)
+#define LL_IOC_CLRFLAGS		 _IOW ('f', 153, long)
+/* LL_IOC_LOV_SETSTRIPE: See also OBD_IOC_LOV_SETSTRIPE */
+#define LL_IOC_LOV_SETSTRIPE	    _IOW ('f', 154, long)
+/* LL_IOC_LOV_GETSTRIPE: See also OBD_IOC_LOV_GETSTRIPE */
+#define LL_IOC_LOV_GETSTRIPE	    _IOW ('f', 155, long)
+/* LL_IOC_LOV_SETEA: See also OBD_IOC_LOV_SETEA */
+#define LL_IOC_LOV_SETEA		_IOW ('f', 156, long)
+#define LL_IOC_RECREATE_OBJ	     _IOW ('f', 157, long)
+#define LL_IOC_RECREATE_FID	     _IOW ('f', 157, struct lu_fid)
+#define LL_IOC_GROUP_LOCK	       _IOW ('f', 158, long)
+#define LL_IOC_GROUP_UNLOCK	     _IOW ('f', 159, long)
+/* LL_IOC_QUOTACHECK: See also OBD_IOC_QUOTACHECK */
+#define LL_IOC_QUOTACHECK	       _IOW ('f', 160, int)
+/* LL_IOC_POLL_QUOTACHECK: See also OBD_IOC_POLL_QUOTACHECK */
+#define LL_IOC_POLL_QUOTACHECK	  _IOR ('f', 161, struct if_quotacheck *)
+/* LL_IOC_QUOTACTL: See also OBD_IOC_QUOTACTL */
+#define LL_IOC_QUOTACTL		 _IOWR('f', 162, struct if_quotactl)
+#define IOC_OBD_STATFS		  _IOWR('f', 164, struct obd_statfs *)
+#define IOC_LOV_GETINFO		 _IOWR('f', 165, struct lov_user_mds_data *)
+#define LL_IOC_FLUSHCTX		 _IOW ('f', 166, long)
+#define LL_IOC_RMTACL		   _IOW ('f', 167, long)
+#define LL_IOC_GETOBDCOUNT	      _IOR ('f', 168, long)
+#define LL_IOC_LLOOP_ATTACH	     _IOWR('f', 169, long)
+#define LL_IOC_LLOOP_DETACH	     _IOWR('f', 170, long)
+#define LL_IOC_LLOOP_INFO	       _IOWR('f', 171, struct lu_fid)
+#define LL_IOC_LLOOP_DETACH_BYDEV       _IOWR('f', 172, long)
+#define LL_IOC_PATH2FID		 _IOR ('f', 173, long)
+#define LL_IOC_GET_CONNECT_FLAGS	_IOWR('f', 174, __u64 *)
+#define LL_IOC_GET_MDTIDX	       _IOR ('f', 175, int)
+
+/* see <lustre_lib.h> for ioctl numbers 177-210 */
+
+#define LL_IOC_HSM_STATE_GET		_IOR('f', 211, struct hsm_user_state)
+#define LL_IOC_HSM_STATE_SET		_IOW('f', 212, struct hsm_state_set)
+#define LL_IOC_HSM_CT_START		_IOW('f', 213, struct lustre_kernelcomm)
+#define LL_IOC_HSM_COPY_START		_IOW('f', 214, struct hsm_copy *)
+#define LL_IOC_HSM_COPY_END		_IOW('f', 215, struct hsm_copy *)
+#define LL_IOC_HSM_PROGRESS		_IOW('f', 216, struct hsm_user_request)
+#define LL_IOC_HSM_REQUEST		_IOW('f', 217, struct hsm_user_request)
+#define LL_IOC_DATA_VERSION		_IOR('f', 218, struct ioc_data_version)
+#define LL_IOC_LOV_SWAP_LAYOUTS		_IOW('f', 219, \
+						struct lustre_swap_layouts)
+#define LL_IOC_HSM_ACTION		_IOR('f', 220, \
+						struct hsm_current_action)
+/* see <lustre_lib.h> for ioctl numbers 221-232 */
+
+#define LL_IOC_LMV_SETSTRIPE	    _IOWR('f', 240, struct lmv_user_md)
+#define LL_IOC_LMV_GETSTRIPE	    _IOWR('f', 241, struct lmv_user_md)
+#define LL_IOC_REMOVE_ENTRY	    _IOWR('f', 242, __u64)
+
+#define LL_STATFS_LMV	   1
+#define LL_STATFS_LOV	   2
+#define LL_STATFS_NODELAY	4
+
+#define IOC_MDC_TYPE	    'i'
+#define IOC_MDC_LOOKUP	  _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
+#define IOC_MDC_GETFILESTRIPE   _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
+#define IOC_MDC_GETFILEINFO     _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
+#define LL_IOC_MDC_GETINFO      _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
+
+/* Keep these for backward compartability. */
+#define LL_IOC_OBD_STATFS       IOC_OBD_STATFS
+#define IOC_MDC_GETSTRIPE       IOC_MDC_GETFILESTRIPE
+
+
+#define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
+
+/* Hopefully O_LOV_DELAY_CREATE does not conflict with standard O_xxx flags.
+ * Previously it was defined as 0100000000 and conflicts with FMODE_NONOTIFY
+ * which was added since kernel 2.6.36, so we redefine it as 020000000.
+ * To be compatible with old version's statically linked binary, finally we
+ * define it as (020000000 | 0100000000).
+ * */
+#define O_LOV_DELAY_CREATE      0120000000
+
+#define LL_FILE_IGNORE_LOCK     0x00000001
+#define LL_FILE_GROUP_LOCKED    0x00000002
+#define LL_FILE_READAHEA	0x00000004
+#define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
+#define LL_FILE_LOCKLESS_IO     0x00000010 /* server-side locks with cio */
+#define LL_FILE_RMTACL	  0x00000020
+
+#define LOV_USER_MAGIC_V1 0x0BD10BD0
+#define LOV_USER_MAGIC    LOV_USER_MAGIC_V1
+#define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
+#define LOV_USER_MAGIC_V3 0x0BD30BD0
+
+#define LMV_MAGIC_V1      0x0CD10CD0    /*normal stripe lmv magic */
+#define LMV_USER_MAGIC    0x0CD20CD0    /*default lmv magic*/
+
+#define LOV_PATTERN_RAID0 0x001
+#define LOV_PATTERN_RAID1 0x002
+#define LOV_PATTERN_FIRST 0x100
+
+#define LOV_MAXPOOLNAME 16
+#define LOV_POOLNAMEF "%.16s"
+
+#define LOV_MIN_STRIPE_BITS 16   /* maximum PAGE_SIZE (ia64), power of 2 */
+#define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS)
+#define LOV_MAX_STRIPE_COUNT_OLD 160
+/* This calculation is crafted so that input of 4096 will result in 160
+ * which in turn is equal to old maximal stripe count.
+ * XXX: In fact this is too simpified for now, what it also need is to get
+ * ea_type argument to clearly know how much space each stripe consumes.
+ *
+ * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
+ * allocation that is sufficient for the current generation of systems.
+ *
+ * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
+#define LOV_MAX_STRIPE_COUNT 2000  /* ((12 * 4096 - 256) / 24) */
+#define LOV_ALL_STRIPES       0xffff /* only valid for directories */
+#define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
+
+#define lov_user_ost_data lov_user_ost_data_v1
+struct lov_user_ost_data_v1 {     /* per-stripe data structure */
+	struct ost_id l_ost_oi;	  /* OST object ID */
+	__u32 l_ost_gen;	  /* generation of this OST index */
+	__u32 l_ost_idx;	  /* OST index in LOV */
+} __attribute__((packed));
+
+#define lov_user_md lov_user_md_v1
+struct lov_user_md_v1 {	   /* LOV EA user data (host-endian) */
+	__u32 lmm_magic;	  /* magic number = LOV_USER_MAGIC_V1 */
+	__u32 lmm_pattern;	/* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
+	struct ost_id lmm_oi;	  /* LOV object ID */
+	__u32 lmm_stripe_size;    /* size of stripe in bytes */
+	__u16 lmm_stripe_count;   /* num stripes in use for this object */
+	union {
+		__u16 lmm_stripe_offset;  /* starting stripe offset in
+					   * lmm_objects, use when writing */
+		__u16 lmm_layout_gen;     /* layout generation number
+					   * used when reading */
+	};
+	struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
+} __attribute__((packed,  __may_alias__));
+
+struct lov_user_md_v3 {	   /* LOV EA user data (host-endian) */
+	__u32 lmm_magic;	  /* magic number = LOV_USER_MAGIC_V3 */
+	__u32 lmm_pattern;	/* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
+	struct ost_id lmm_oi;	  /* LOV object ID */
+	__u32 lmm_stripe_size;    /* size of stripe in bytes */
+	__u16 lmm_stripe_count;   /* num stripes in use for this object */
+	union {
+		__u16 lmm_stripe_offset;  /* starting stripe offset in
+					   * lmm_objects, use when writing */
+		__u16 lmm_layout_gen;     /* layout generation number
+					   * used when reading */
+	};
+	char  lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */
+	struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
+} __attribute__((packed));
+
+/* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
+ * use this.  It is unsafe to #define those values in this header as it
+ * is possible the application has already #included <sys/stat.h>. */
+#ifdef HAVE_LOV_USER_MDS_DATA
+#define lov_user_mds_data lov_user_mds_data_v1
+struct lov_user_mds_data_v1 {
+	lstat_t lmd_st;		 /* MDS stat struct */
+	struct lov_user_md_v1 lmd_lmm;  /* LOV EA V1 user data */
+} __attribute__((packed));
+
+struct lov_user_mds_data_v3 {
+	lstat_t lmd_st;		 /* MDS stat struct */
+	struct lov_user_md_v3 lmd_lmm;  /* LOV EA V3 user data */
+} __attribute__((packed));
+#endif
+
+/* keep this to be the same size as lov_user_ost_data_v1 */
+struct lmv_user_mds_data {
+	struct lu_fid	lum_fid;
+	__u32		lum_padding;
+	__u32		lum_mds;
+};
+
+/* lum_type */
+enum {
+	LMV_STRIPE_TYPE = 0,
+	LMV_DEFAULT_TYPE = 1,
+};
+
+#define lmv_user_md lmv_user_md_v1
+struct lmv_user_md_v1 {
+	__u32	lum_magic;	 /* must be the first field */
+	__u32	lum_stripe_count;  /* dirstripe count */
+	__u32	lum_stripe_offset; /* MDT idx for default dirstripe */
+	__u32	lum_hash_type;     /* Dir stripe policy */
+	__u32	lum_type;	  /* LMV type: default or normal */
+	__u32	lum_padding1;
+	__u32	lum_padding2;
+	__u32	lum_padding3;
+	char	lum_pool_name[LOV_MAXPOOLNAME];
+	struct	lmv_user_mds_data  lum_objects[0];
+};
+
+static inline int lmv_user_md_size(int stripes, int lmm_magic)
+{
+	return sizeof(struct lmv_user_md) +
+		      stripes * sizeof(struct lmv_user_mds_data);
+}
+
+extern void lustre_swab_lmv_user_md(struct lmv_user_md *lum);
+
+struct ll_recreate_obj {
+	__u64 lrc_id;
+	__u32 lrc_ost_idx;
+};
+
+struct ll_fid {
+	__u64 id;	 /* holds object id */
+	__u32 generation; /* holds object generation */
+	__u32 f_type;     /* holds object type or stripe idx when passing it to
+			   * OST for saving into EA. */
+};
+
+#define UUID_MAX	40
+struct obd_uuid {
+	char uuid[UUID_MAX];
+};
+
+static inline int obd_uuid_equals(const struct obd_uuid *u1,
+				  const struct obd_uuid *u2)
+{
+	return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
+}
+
+static inline int obd_uuid_empty(struct obd_uuid *uuid)
+{
+	return uuid->uuid[0] == '\0';
+}
+
+static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
+{
+	strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
+	uuid->uuid[sizeof(*uuid) - 1] = '\0';
+}
+
+/* For printf's only, make sure uuid is terminated */
+static inline char *obd_uuid2str(struct obd_uuid *uuid)
+{
+	if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
+		/* Obviously not safe, but for printfs, no real harm done...
+		   we're always null-terminated, even in a race. */
+		static char temp[sizeof(*uuid)];
+		memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
+		temp[sizeof(*uuid) - 1] = '\0';
+		return temp;
+	}
+	return (char *)(uuid->uuid);
+}
+
+/* Extract fsname from uuid (or target name) of a target
+   e.g. (myfs-OST0007_UUID -> myfs)
+   see also deuuidify. */
+static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
+{
+	char *p;
+
+	strncpy(buf, uuid, buflen - 1);
+	buf[buflen - 1] = '\0';
+	p = strrchr(buf, '-');
+	if (p)
+	   *p = '\0';
+}
+
+/* printf display format
+   e.g. printf("file FID is "DFID"\n", PFID(fid)); */
+#define DFID_NOBRACE LPX64":0x%x:0x%x"
+#define DFID "["DFID_NOBRACE"]"
+#define PFID(fid)     \
+	(fid)->f_seq, \
+	(fid)->f_oid, \
+	(fid)->f_ver
+
+/* scanf input parse format -- strip '[' first.
+   e.g. sscanf(fidstr, SFID, RFID(&fid)); */
+/* #define SFID "0x"LPX64i":0x"LPSZX":0x"LPSZX""
+liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 4 has type 'unsigned int *'
+liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 5 has type 'unsigned int *'
+*/
+#define SFID "0x"LPX64i":0x%x:0x%x"
+#define RFID(fid)     \
+	&((fid)->f_seq), \
+	&((fid)->f_oid), \
+	&((fid)->f_ver)
+
+
+/********* Quotas **********/
+
+/* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
+#define LUSTRE_Q_QUOTAON    0x800002     /* turn quotas on */
+#define LUSTRE_Q_QUOTAOFF   0x800003     /* turn quotas off */
+#define LUSTRE_Q_GETINFO    0x800005     /* get information about quota files */
+#define LUSTRE_Q_SETINFO    0x800006     /* set information about quota files */
+#define LUSTRE_Q_GETQUOTA   0x800007     /* get user quota structure */
+#define LUSTRE_Q_SETQUOTA   0x800008     /* set user quota structure */
+/* lustre-specific control commands */
+#define LUSTRE_Q_INVALIDATE  0x80000b     /* invalidate quota data */
+#define LUSTRE_Q_FINVALIDATE 0x80000c     /* invalidate filter quota data */
+
+#define UGQUOTA 2       /* set both USRQUOTA and GRPQUOTA */
+
+struct if_quotacheck {
+	char		    obd_type[16];
+	struct obd_uuid	 obd_uuid;
+};
+
+#define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
+
+/* permission */
+#define N_PERMS_MAX      64
+
+struct perm_downcall_data {
+	__u64 pdd_nid;
+	__u32 pdd_perm;
+	__u32 pdd_padding;
+};
+
+struct identity_downcall_data {
+	__u32			    idd_magic;
+	__u32			    idd_err;
+	__u32			    idd_uid;
+	__u32			    idd_gid;
+	__u32			    idd_nperms;
+	__u32			    idd_ngroups;
+	struct perm_downcall_data idd_perms[N_PERMS_MAX];
+	__u32			    idd_groups[0];
+};
+
+/* for non-mapped uid/gid */
+#define NOBODY_UID      99
+#define NOBODY_GID      99
+
+#define INVALID_ID      (-1)
+
+enum {
+	RMT_LSETFACL    = 1,
+	RMT_LGETFACL    = 2,
+	RMT_RSETFACL    = 3,
+	RMT_RGETFACL    = 4
+};
+
+#ifdef NEED_QUOTA_DEFS
+#ifndef QIF_BLIMITS
+#define QIF_BLIMITS     1
+#define QIF_SPACE       2
+#define QIF_ILIMITS     4
+#define QIF_INODES      8
+#define QIF_BTIME       16
+#define QIF_ITIME       32
+#define QIF_LIMITS      (QIF_BLIMITS | QIF_ILIMITS)
+#define QIF_USAGE       (QIF_SPACE | QIF_INODES)
+#define QIF_TIMES       (QIF_BTIME | QIF_ITIME)
+#define QIF_ALL	 (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
+#endif
+
+#endif /* !__KERNEL__ */
+
+/* lustre volatile file support
+ * file name header: .^L^S^T^R:volatile"
+ */
+#define LUSTRE_VOLATILE_HDR	".\x0c\x13\x14\x12:VOLATILE"
+#define LUSTRE_VOLATILE_HDR_LEN	14
+/* hdr + MDT index */
+#define LUSTRE_VOLATILE_IDX	LUSTRE_VOLATILE_HDR":%.4X:"
+
+typedef enum lustre_quota_version {
+	LUSTRE_QUOTA_V2 = 1
+} lustre_quota_version_t;
+
+/* XXX: same as if_dqinfo struct in kernel */
+struct obd_dqinfo {
+	__u64 dqi_bgrace;
+	__u64 dqi_igrace;
+	__u32 dqi_flags;
+	__u32 dqi_valid;
+};
+
+/* XXX: same as if_dqblk struct in kernel, plus one padding */
+struct obd_dqblk {
+	__u64 dqb_bhardlimit;
+	__u64 dqb_bsoftlimit;
+	__u64 dqb_curspace;
+	__u64 dqb_ihardlimit;
+	__u64 dqb_isoftlimit;
+	__u64 dqb_curinodes;
+	__u64 dqb_btime;
+	__u64 dqb_itime;
+	__u32 dqb_valid;
+	__u32 dqb_padding;
+};
+
+enum {
+	QC_GENERAL      = 0,
+	QC_MDTIDX       = 1,
+	QC_OSTIDX       = 2,
+	QC_UUID	 = 3
+};
+
+struct if_quotactl {
+	__u32		   qc_cmd;
+	__u32		   qc_type;
+	__u32		   qc_id;
+	__u32		   qc_stat;
+	__u32		   qc_valid;
+	__u32		   qc_idx;
+	struct obd_dqinfo       qc_dqinfo;
+	struct obd_dqblk	qc_dqblk;
+	char		    obd_type[16];
+	struct obd_uuid	 obd_uuid;
+};
+
+/* swap layout flags */
+#define	SWAP_LAYOUTS_CHECK_DV1		(1 << 0)
+#define	SWAP_LAYOUTS_CHECK_DV2		(1 << 1)
+#define	SWAP_LAYOUTS_KEEP_MTIME		(1 << 2)
+#define	SWAP_LAYOUTS_KEEP_ATIME		(1 << 3)
+struct lustre_swap_layouts {
+	__u64	sl_flags;
+	__u32	sl_fd;
+	__u32	sl_gid;
+	__u64	sl_dv1;
+	__u64	sl_dv2;
+};
+
+
+/********* Changelogs **********/
+/** Changelog record types */
+enum changelog_rec_type {
+	CL_MARK     = 0,
+	CL_CREATE   = 1,  /* namespace */
+	CL_MKDIR    = 2,  /* namespace */
+	CL_HARDLINK = 3,  /* namespace */
+	CL_SOFTLINK = 4,  /* namespace */
+	CL_MKNOD    = 5,  /* namespace */
+	CL_UNLINK   = 6,  /* namespace */
+	CL_RMDIR    = 7,  /* namespace */
+	CL_RENAME   = 8,  /* namespace */
+	CL_EXT      = 9,  /* namespace extended record (2nd half of rename) */
+	CL_OPEN     = 10, /* not currently used */
+	CL_CLOSE    = 11, /* may be written to log only with mtime change */
+	CL_LAYOUT   = 12, /* file layout/striping modified */
+	CL_TRUNC    = 13,
+	CL_SETATTR  = 14,
+	CL_XATTR    = 15,
+	CL_HSM      = 16, /* HSM specific events, see flags */
+	CL_MTIME    = 17, /* Precedence: setattr > mtime > ctime > atime */
+	CL_CTIME    = 18,
+	CL_ATIME    = 19,
+	CL_LAST
+};
+
+static inline const char *changelog_type2str(int type) {
+	static const char *changelog_str[] = {
+		"MARK",  "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
+		"RMDIR", "RENME", "RNMTO", "OPEN",  "CLOSE", "LYOUT", "TRUNC",
+		"SATTR", "XATTR", "HSM",   "MTIME", "CTIME", "ATIME",
+	};
+
+	if (type >= 0 && type < CL_LAST)
+		return changelog_str[type];
+	return NULL;
+}
+
+/* per-record flags */
+#define CLF_VERSION     0x1000
+#define CLF_EXT_VERSION 0x2000
+#define CLF_FLAGSHIFT   12
+#define CLF_FLAGMASK    ((1U << CLF_FLAGSHIFT) - 1)
+#define CLF_VERMASK     (~CLF_FLAGMASK)
+/* Anything under the flagmask may be per-type (if desired) */
+/* Flags for unlink */
+#define CLF_UNLINK_LAST       0x0001 /* Unlink of last hardlink */
+#define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
+				     /* HSM cleaning needed */
+/* Flags for rename */
+#define CLF_RENAME_LAST       0x0001 /* rename unlink last hardlink of target */
+
+/* Flags for HSM */
+/* 12b used (from high weight to low weight):
+ * 2b for flags
+ * 3b for event
+ * 7b for error code
+ */
+#define CLF_HSM_ERR_L	0 /* HSM return code, 7 bits */
+#define CLF_HSM_ERR_H	6
+#define CLF_HSM_EVENT_L      7 /* HSM event, 3 bits, see enum hsm_event */
+#define CLF_HSM_EVENT_H      9
+#define CLF_HSM_FLAG_L      10 /* HSM flags, 2 bits, 1 used, 1 spare */
+#define CLF_HSM_FLAG_H      11
+#define CLF_HSM_SPARE_L     12 /* 4 spare bits */
+#define CLF_HSM_SPARE_H     15
+#define CLF_HSM_LAST	15
+
+/* Remove bits higher than _h, then extract the value
+ * between _h and _l by shifting lower weigth to bit 0. */
+#define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
+				   >> (CLF_HSM_LAST - _h + _l))
+
+#define CLF_HSM_SUCCESS      0x00
+#define CLF_HSM_MAXERROR     0x7E
+#define CLF_HSM_ERROVERFLOW  0x7F
+
+#define CLF_HSM_DIRTY	1 /* file is dirty after HSM request end */
+
+/* 3 bits field => 8 values allowed */
+enum hsm_event {
+	HE_ARCHIVE      = 0,
+	HE_RESTORE      = 1,
+	HE_CANCEL       = 2,
+	HE_RELEASE      = 3,
+	HE_REMOVE       = 4,
+	HE_STATE	= 5,
+	HE_SPARE1       = 6,
+	HE_SPARE2       = 7,
+};
+
+static inline enum hsm_event hsm_get_cl_event(__u16 flags)
+{
+	return CLF_GET_BITS(flags, CLF_HSM_EVENT_H, CLF_HSM_EVENT_L);
+}
+
+static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
+{
+	*flags |= (he << CLF_HSM_EVENT_L);
+}
+
+static inline __u16 hsm_get_cl_flags(int flags)
+{
+	return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
+}
+
+static inline void hsm_set_cl_flags(int *flags, int bits)
+{
+	*flags |= (bits << CLF_HSM_FLAG_L);
+}
+
+static inline int hsm_get_cl_error(int flags)
+{
+	return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
+}
+
+static inline void hsm_set_cl_error(int *flags, int error)
+{
+	*flags |= (error << CLF_HSM_ERR_L);
+}
+
+#define CR_MAXSIZE cfs_size_round(2*NAME_MAX + 1 + sizeof(struct changelog_rec))
+
+struct changelog_rec {
+	__u16		 cr_namelen;
+	__u16		 cr_flags; /**< (flags&CLF_FLAGMASK)|CLF_VERSION */
+	__u32		 cr_type;  /**< \a changelog_rec_type */
+	__u64		 cr_index; /**< changelog record number */
+	__u64		 cr_prev;  /**< last index for this target fid */
+	__u64		 cr_time;
+	union {
+		lustre_fid    cr_tfid;	/**< target fid */
+		__u32	 cr_markerflags; /**< CL_MARK flags */
+	};
+	lustre_fid	    cr_pfid;	/**< parent fid */
+	char		  cr_name[0];     /**< last element */
+} __attribute__((packed));
+
+/* changelog_ext_rec is 2*sizeof(lu_fid) bigger than changelog_rec, to save
+ * space, only rename uses changelog_ext_rec, while others use changelog_rec to
+ * store records.
+ */
+struct changelog_ext_rec {
+	__u16			cr_namelen;
+	__u16			cr_flags; /**< (flags & CLF_FLAGMASK) |
+						CLF_EXT_VERSION */
+	__u32			cr_type;  /**< \a changelog_rec_type */
+	__u64			cr_index; /**< changelog record number */
+	__u64			cr_prev;  /**< last index for this target fid */
+	__u64			cr_time;
+	union {
+		lustre_fid	cr_tfid;	/**< target fid */
+		__u32		cr_markerflags; /**< CL_MARK flags */
+	};
+	lustre_fid		cr_pfid;	/**< target parent fid */
+	lustre_fid		cr_sfid;	/**< source fid, or zero */
+	lustre_fid		cr_spfid;       /**< source parent fid, or zero */
+	char			cr_name[0];     /**< last element */
+} __attribute__((packed));
+
+#define CHANGELOG_REC_EXTENDED(rec) \
+	(((rec)->cr_flags & CLF_VERMASK) == CLF_EXT_VERSION)
+
+static inline int changelog_rec_size(struct changelog_rec *rec)
+{
+	return CHANGELOG_REC_EXTENDED(rec) ? sizeof(struct changelog_ext_rec):
+					     sizeof(*rec);
+}
+
+static inline char *changelog_rec_name(struct changelog_rec *rec)
+{
+	return CHANGELOG_REC_EXTENDED(rec) ?
+		((struct changelog_ext_rec *)rec)->cr_name: rec->cr_name;
+}
+
+static inline int changelog_rec_snamelen(struct changelog_ext_rec *rec)
+{
+	return rec->cr_namelen - strlen(rec->cr_name) - 1;
+}
+
+static inline char *changelog_rec_sname(struct changelog_ext_rec *rec)
+{
+	return rec->cr_name + strlen(rec->cr_name) + 1;
+}
+
+struct ioc_changelog {
+	__u64 icc_recno;
+	__u32 icc_mdtindex;
+	__u32 icc_id;
+	__u32 icc_flags;
+};
+
+enum changelog_message_type {
+	CL_RECORD = 10, /* message is a changelog_rec */
+	CL_EOF    = 11, /* at end of current changelog */
+};
+
+/********* Misc **********/
+
+struct ioc_data_version {
+	__u64 idv_version;
+	__u64 idv_flags;     /* See LL_DV_xxx */
+};
+#define LL_DV_NOFLUSH 0x01   /* Do not take READ EXTENT LOCK before sampling
+				version. Dirty caches are left unchanged. */
+
+#ifndef offsetof
+# define offsetof(typ,memb)     ((unsigned long)((char *)&(((typ *)0)->memb)))
+#endif
+
+#define dot_lustre_name ".lustre"
+
+
+/********* HSM **********/
+
+/** HSM per-file state
+ * See HSM_FLAGS below.
+ */
+enum hsm_states {
+	HS_EXISTS	= 0x00000001,
+	HS_DIRTY	= 0x00000002,
+	HS_RELEASED	= 0x00000004,
+	HS_ARCHIVED	= 0x00000008,
+	HS_NORELEASE	= 0x00000010,
+	HS_NOARCHIVE	= 0x00000020,
+	HS_LOST		= 0x00000040,
+};
+
+/* HSM user-setable flags. */
+#define HSM_USER_MASK   (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
+
+/* Other HSM flags. */
+#define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
+
+/*
+ * All HSM-related possible flags that could be applied to a file.
+ * This should be kept in sync with hsm_states.
+ */
+#define HSM_FLAGS_MASK  (HSM_USER_MASK | HSM_STATUS_MASK)
+
+/**
+ * HSM request progress state
+ */
+enum hsm_progress_states {
+	HPS_WAITING	= 1,
+	HPS_RUNNING	= 2,
+	HPS_DONE	= 3,
+};
+#define HPS_NONE	0
+
+static inline char *hsm_progress_state2name(enum hsm_progress_states s)
+{
+	switch  (s) {
+	case HPS_WAITING:	return "waiting";
+	case HPS_RUNNING:	return "running";
+	case HPS_DONE:		return "done";
+	default:		return "unknown";
+	}
+}
+
+struct hsm_extent {
+	__u64 offset;
+	__u64 length;
+} __attribute__((packed));
+
+/**
+ * Current HSM states of a Lustre file.
+ *
+ * This structure purpose is to be sent to user-space mainly. It describes the
+ * current HSM flags and in-progress action.
+ */
+struct hsm_user_state {
+	/** Current HSM states, from enum hsm_states. */
+	__u32			hus_states;
+	__u32			hus_archive_id;
+	/**  The current undergoing action, if there is one */
+	__u32			hus_in_progress_state;
+	__u32			hus_in_progress_action;
+	struct hsm_extent	hus_in_progress_location;
+	char			hus_extended_info[];
+};
+
+struct hsm_state_set_ioc {
+	struct lu_fid	hssi_fid;
+	__u64		hssi_setmask;
+	__u64		hssi_clearmask;
+};
+
+/*
+ * This structure describes the current in-progress action for a file.
+ * it is retuned to user space and send over the wire
+ */
+struct hsm_current_action {
+	/**  The current undergoing action, if there is one */
+	/* state is one of hsm_progress_states */
+	__u32			hca_state;
+	/* action is one of hsm_user_action */
+	__u32			hca_action;
+	struct hsm_extent	hca_location;
+};
+
+/***** HSM user requests ******/
+/* User-generated (lfs/ioctl) request types */
+enum hsm_user_action {
+	HUA_NONE    =  1, /* no action (noop) */
+	HUA_ARCHIVE = 10, /* copy to hsm */
+	HUA_RESTORE = 11, /* prestage */
+	HUA_RELEASE = 12, /* drop ost objects */
+	HUA_REMOVE  = 13, /* remove from archive */
+	HUA_CANCEL  = 14  /* cancel a request */
+};
+
+static inline char *hsm_user_action2name(enum hsm_user_action  a)
+{
+	switch  (a) {
+	case HUA_NONE:    return "NOOP";
+	case HUA_ARCHIVE: return "ARCHIVE";
+	case HUA_RESTORE: return "RESTORE";
+	case HUA_RELEASE: return "RELEASE";
+	case HUA_REMOVE:  return "REMOVE";
+	case HUA_CANCEL:  return "CANCEL";
+	default:	  return "UNKNOWN";
+	}
+}
+
+/*
+ * List of hr_flags (bit field)
+ */
+#define HSM_FORCE_ACTION 0x0001
+/* used by CT, connot be set by user */
+#define HSM_GHOST_COPY   0x0002
+
+/**
+ * Contains all the fixed part of struct hsm_user_request.
+ *
+ */
+struct hsm_request {
+	__u32 hr_action;	/* enum hsm_user_action */
+	__u32 hr_archive_id;	/* archive id, used only with HUA_ARCHIVE */
+	__u64 hr_flags;		/* request flags */
+	__u32 hr_itemcount;	/* item count in hur_user_item vector */
+	__u32 hr_data_len;
+};
+
+struct hsm_user_item {
+       lustre_fid	hui_fid;
+       struct hsm_extent hui_extent;
+} __attribute__((packed));
+
+struct hsm_user_request {
+	struct hsm_request	hur_request;
+	struct hsm_user_item	hur_user_item[0];
+	/* extra data blob at end of struct (after all
+	 * hur_user_items), only use helpers to access it
+	 */
+} __attribute__((packed));
+
+/** Return pointer to data field in a hsm user request */
+static inline void *hur_data(struct hsm_user_request *hur)
+{
+	return &(hur->hur_user_item[hur->hur_request.hr_itemcount]);
+}
+
+/** Compute the current length of the provided hsm_user_request. */
+static inline int hur_len(struct hsm_user_request *hur)
+{
+	return offsetof(struct hsm_user_request,
+			hur_user_item[hur->hur_request.hr_itemcount]) +
+		hur->hur_request.hr_data_len;
+}
+
+/****** HSM RPCs to copytool *****/
+/* Message types the copytool may receive */
+enum hsm_message_type {
+	HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
+};
+
+/* Actions the copytool may be instructed to take for a given action_item */
+enum hsm_copytool_action {
+	HSMA_NONE    = 10, /* no action */
+	HSMA_ARCHIVE = 20, /* arbitrary offset */
+	HSMA_RESTORE = 21,
+	HSMA_REMOVE  = 22,
+	HSMA_CANCEL  = 23
+};
+
+static inline char *hsm_copytool_action2name(enum hsm_copytool_action  a)
+{
+	switch  (a) {
+	case HSMA_NONE:    return "NOOP";
+	case HSMA_ARCHIVE: return "ARCHIVE";
+	case HSMA_RESTORE: return "RESTORE";
+	case HSMA_REMOVE:  return "REMOVE";
+	case HSMA_CANCEL:  return "CANCEL";
+	default:	   return "UNKNOWN";
+	}
+}
+
+/* Copytool item action description */
+struct hsm_action_item {
+	__u32      hai_len;     /* valid size of this struct */
+	__u32      hai_action;  /* hsm_copytool_action, but use known size */
+	lustre_fid hai_fid;     /* Lustre FID to operated on */
+	lustre_fid hai_dfid;    /* fid used for data access */
+	struct hsm_extent hai_extent;  /* byte range to operate on */
+	__u64      hai_cookie;  /* action cookie from coordinator */
+	__u64      hai_gid;     /* grouplock id */
+	char       hai_data[0]; /* variable length */
+} __attribute__((packed));
+
+/*
+ * helper function which print in hexa the first bytes of
+ * hai opaque field
+ * \param hai [IN] record to print
+ * \param buffer [OUT] output buffer
+ * \param len [IN] max buffer len
+ * \retval buffer
+ */
+static inline char *hai_dump_data_field(struct hsm_action_item *hai,
+					char *buffer, int len)
+{
+	int i, sz, data_len;
+	char *ptr;
+
+	ptr = buffer;
+	sz = len;
+	data_len = hai->hai_len - sizeof(*hai);
+	for (i = 0 ; (i < data_len) && (sz > 0) ; i++)
+	{
+		int cnt;
+
+		cnt = snprintf(ptr, sz, "%.2X",
+			       (unsigned char)hai->hai_data[i]);
+		ptr += cnt;
+		sz -= cnt;
+	}
+	*ptr = '\0';
+	return buffer;
+}
+
+/* Copytool action list */
+#define HAL_VERSION 1
+#define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */
+struct hsm_action_list {
+	__u32 hal_version;
+	__u32 hal_count;       /* number of hai's to follow */
+	__u64 hal_compound_id; /* returned by coordinator */
+	__u64 hal_flags;
+	__u32 hal_archive_id; /* which archive backend */
+	__u32 padding1;
+	char  hal_fsname[0];   /* null-terminated */
+	/* struct hsm_action_item[hal_count] follows, aligned on 8-byte
+	   boundaries. See hai_zero */
+} __attribute__((packed));
+
+#ifndef HAVE_CFS_SIZE_ROUND
+static inline int cfs_size_round (int val)
+{
+	return (val + 7) & (~0x7);
+}
+#define HAVE_CFS_SIZE_ROUND
+#endif
+
+/* Return pointer to first hai in action list */
+static inline struct hsm_action_item * hai_zero(struct hsm_action_list *hal)
+{
+	return (struct hsm_action_item *)(hal->hal_fsname +
+					  cfs_size_round(strlen(hal-> \
+								hal_fsname)));
+}
+/* Return pointer to next hai */
+static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
+{
+	return (struct hsm_action_item *)((char *)hai +
+					  cfs_size_round(hai->hai_len));
+}
+
+/* Return size of an hsm_action_list */
+static inline int hal_size(struct hsm_action_list *hal)
+{
+	int i, sz;
+	struct hsm_action_item *hai;
+
+	sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname));
+	hai = hai_zero(hal);
+	for (i = 0 ; i < hal->hal_count ; i++) {
+		sz += cfs_size_round(hai->hai_len);
+		hai = hai_next(hai);
+	}
+	return(sz);
+}
+
+/* Copytool progress reporting */
+#define HP_FLAG_COMPLETED 0x01
+#define HP_FLAG_RETRY     0x02
+
+struct hsm_progress {
+	lustre_fid		hp_fid;
+	__u64			hp_cookie;
+	struct hsm_extent	hp_extent;
+	__u16			hp_flags;
+	__u16			hp_errval; /* positive val */
+	__u32			padding;
+};
+
+/**
+ * Use by copytool during any hsm request they handled.
+ * This structure is initialized by llapi_hsm_copy_start()
+ * which is an helper over the ioctl() interface
+ * Store Lustre, internal use only, data.
+ */
+struct hsm_copy {
+	__u64			hc_data_version;
+	__u16			hc_flags;
+	__u16			hc_errval; /* positive val */
+	__u32			padding;
+	struct hsm_action_item	hc_hai;
+};
+
+/** @} lustreuser */
+
+#endif /* _LUSTRE_USER_H */