Support custom build directories and move includes

One of the neat tricks an autoconf style project is capable of
is allow configurion/building in a directory other than the
source directory.  The major advantage to this is that you can
build the project various different ways while making changes
in a single source tree.

For example, this project is designed to work on various different
Linux distributions each of which work slightly differently.  This
means that changes need to verified on each of those supported
distributions perferably before the change is committed to the
public git repo.

Using nfs and custom build directories makes this much easier.
I now have a single source tree in nfs mounted on several different
systems each running a supported distribution.  When I make a
change to the source base I suspect may break things I can
concurrently build from the same source on all the systems each
in their own subdirectory.

wget -c http://github.com/downloads/behlendorf/zfs/zfs-x.y.z.tar.gz
tar -xzf zfs-x.y.z.tar.gz
cd zfs-x-y-z

------------------------- run concurrently ----------------------
<ubuntu system>  <fedora system>  <debian system>  <rhel6 system>
mkdir ubuntu     mkdir fedora     mkdir debian     mkdir rhel6
cd ubuntu        cd fedora        cd debian        cd rhel6
../configure     ../configure     ../configure     ../configure
make             make             make             make
make check       make check       make check       make check

This change also moves many of the include headers from individual
incude/sys directories under the modules directory in to a single
top level include directory.  This has the advantage of making
the build rules cleaner and logically it makes a bit more sense.

1 files changed, 624 insertions, 0 deletions

diff --git a/include/sys/zfs_context.h b/include/sys/zfs_context.h
new file mode 100644
index 000000000..115bf9759
--- /dev/null
+++ b/include/sys/zfs_context.h
@@ -0,0 +1,624 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZFS_CONTEXT_H
+#define	_SYS_ZFS_CONTEXT_H
+
+#ifdef _KERNEL
+
+#include <sys/note.h>
+#include <sys/types.h>
+#include <sys/t_lock.h>
+#include <sys/atomic.h>
+#include <sys/sysmacros.h>
+#include <sys/bitmap.h>
+#include <sys/cmn_err.h>
+#include <sys/kmem.h>
+#include <sys/taskq.h>
+#include <sys/buf.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/cpuvar.h>
+#include <sys/kobj.h>
+#include <sys/conf.h>
+#include <sys/disp.h>
+#include <sys/debug.h>
+#include <sys/random.h>
+#include <sys/byteorder.h>
+#include <sys/systm.h>
+#include <sys/list.h>
+#include <sys/uio.h>
+#include <sys/dirent.h>
+#include <sys/time.h>
+#include <vm/seg_kmem.h>
+#include <sys/zone.h>
+#include <sys/uio.h>
+#include <sys/zfs_debug.h>
+#include <sys/fm/fs/zfs.h>
+#include <sys/sunddi.h>
+
+#else /* _KERNEL */
+
+#define	_SYS_MUTEX_H
+#define	_SYS_RWLOCK_H
+#define	_SYS_CONDVAR_H
+#define	_SYS_SYSTM_H
+#define	_SYS_DEBUG_H
+#define	_SYS_T_LOCK_H
+#define	_SYS_VNODE_H
+#define	_SYS_VFS_H
+#define	_SYS_SUNDDI_H
+#define	_SYS_CALLB_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <strings.h>
+#include <pthread.h>
+#include <assert.h>
+#include <alloca.h>
+#include <umem.h>
+#include <limits.h>
+#include <atomic.h>
+#include <dirent.h>
+#include <time.h>
+#include <sys/note.h>
+#include <sys/types.h>
+#include <sys/cred.h>
+#include <sys/sysmacros.h>
+#include <sys/bitmap.h>
+#include <sys/resource.h>
+#include <sys/byteorder.h>
+#include <sys/list.h>
+#include <sys/uio.h>
+#include <sys/zfs_debug.h>
+#include <sys/sdt.h>
+#include <sys/kstat.h>
+#include <sys/u8_textprep.h>
+#include <sys/fm/fs/zfs.h>
+#include <sys/sunddi.h>
+
+/*
+ * Stack
+ */
+
+#define  noinline	__attribute__((noinline))
+
+/*
+ * Debugging
+ */
+
+/*
+ * Note that we are not using the debugging levels.
+ */
+
+#define	CE_CONT		0	/* continuation		*/
+#define	CE_NOTE		1	/* notice		*/
+#define	CE_WARN		2	/* warning		*/
+#define	CE_PANIC	3	/* panic		*/
+#define	CE_IGNORE	4	/* print nothing	*/
+
+extern int aok;
+
+/*
+ * ZFS debugging
+ */
+
+#ifdef ZFS_DEBUG
+extern void dprintf_setup(int *argc, char **argv);
+#endif /* ZFS_DEBUG */
+
+extern void cmn_err(int, const char *, ...);
+extern void vcmn_err(int, const char *, __va_list);
+extern void panic(const char *, ...);
+extern void vpanic(const char *, __va_list);
+
+#define	fm_panic	panic
+
+/*
+ * DTrace SDT probes have different signatures in userland than they do in
+ * kernel.  If they're being used in kernel code, re-define them out of
+ * existence for their counterparts in libzpool.
+ */
+
+#ifdef DTRACE_PROBE
+#undef	DTRACE_PROBE
+#define	DTRACE_PROBE(a)	((void)0)
+#endif	/* DTRACE_PROBE */
+
+#ifdef DTRACE_PROBE1
+#undef	DTRACE_PROBE1
+#define	DTRACE_PROBE1(a, b, c)	((void)0)
+#endif	/* DTRACE_PROBE1 */
+
+#ifdef DTRACE_PROBE2
+#undef	DTRACE_PROBE2
+#define	DTRACE_PROBE2(a, b, c, d, e)	((void)0)
+#endif	/* DTRACE_PROBE2 */
+
+#ifdef DTRACE_PROBE3
+#undef	DTRACE_PROBE3
+#define	DTRACE_PROBE3(a, b, c, d, e, f, g)	((void)0)
+#endif	/* DTRACE_PROBE3 */
+
+#ifdef DTRACE_PROBE4
+#undef	DTRACE_PROBE4
+#define	DTRACE_PROBE4(a, b, c, d, e, f, g, h, i)	((void)0)
+#endif	/* DTRACE_PROBE4 */
+
+/*
+ * Threads
+ */
+#define	TS_MAGIC		0x72f158ab4261e538ull
+#define	TS_RUN			0x00000002
+#ifdef __linux__
+#define	STACK_SIZE		8192	/* Linux x86 and amd64 */
+#else
+#define	STACK_SIZE		24576	/* Solaris */
+#endif
+
+#ifdef NPTL_GUARD_WITHIN_STACK
+#define	EXTRA_GUARD_BYTES	PAGESIZE
+#else
+#define	EXTRA_GUARD_BYTES	0
+#endif
+
+/* in libzpool, p0 exists only to have its address taken */
+typedef struct proc {
+	uintptr_t	this_is_never_used_dont_dereference_it;
+} proc_t;
+
+extern struct proc p0;
+
+typedef void (*thread_func_t)(void *);
+typedef void (*thread_func_arg_t)(void *);
+typedef pthread_t kt_did_t;
+
+typedef struct kthread {
+	kt_did_t	t_tid;
+	thread_func_t	t_func;
+	void *		t_arg;
+} kthread_t;
+
+#define	tsd_get(key)			pthread_getspecific(key)
+#define	tsd_set(key, val)		pthread_setspecific(key, val)
+#define	curthread			zk_thread_current()
+#define	thread_exit			zk_thread_exit
+#define	thread_create(stk, stksize, func, arg, len, pp, state, pri)	\
+	zk_thread_create(stk, stksize, (thread_func_t)func, arg,	\
+			 len, NULL, state, pri)
+#define	thread_join(t)			zk_thread_join(t)
+#define	newproc(f,a,cid,pri,ctp,pid)	(ENOSYS)
+
+extern kthread_t *zk_thread_current(void);
+extern void zk_thread_exit(void);
+extern kthread_t *zk_thread_create(caddr_t stk, size_t  stksize,
+	thread_func_t func, void *arg, size_t len,
+	proc_t *pp, int state, pri_t pri);
+extern void zk_thread_join(kt_did_t tid);
+
+#define	PS_NONE		-1
+
+#define	issig(why)	(FALSE)
+#define	ISSIG(thr, why)	(FALSE)
+
+/*
+ * Mutexes
+ */
+#define	MTX_MAGIC	0x9522f51362a6e326ull
+#define	MTX_INIT	((void *)NULL)
+#define	MTX_DEST	((void *)-1UL)
+
+typedef struct kmutex {
+	void		*m_owner;
+	uint64_t	m_magic;
+	pthread_mutex_t	m_lock;
+} kmutex_t;
+
+#define	MUTEX_DEFAULT	0
+#define MUTEX_HELD(m)	((m)->m_owner == curthread)
+#define	MUTEX_NOT_HELD(m) (!MUTEX_HELD(m))
+
+extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie);
+extern void mutex_destroy(kmutex_t *mp);
+extern void mutex_enter(kmutex_t *mp);
+extern void mutex_exit(kmutex_t *mp);
+extern int mutex_tryenter(kmutex_t *mp);
+extern void *mutex_owner(kmutex_t *mp);
+extern int mutex_held(kmutex_t *mp);
+
+/*
+ * RW locks
+ */
+#define	RW_MAGIC	0x4d31fb123648e78aull
+#define	RW_INIT		((void *)NULL)
+#define	RW_DEST		((void *)-1UL)
+
+typedef struct krwlock {
+	void			*rw_owner;
+	void			*rw_wr_owner;
+	uint64_t		rw_magic;
+	pthread_rwlock_t	rw_lock;
+	uint_t			rw_readers;
+} krwlock_t;
+
+typedef int krw_t;
+
+#define	RW_READER	0
+#define	RW_WRITER	1
+#define RW_DEFAULT	RW_READER
+
+#define	RW_READ_HELD(x)		((x)->rw_readers > 0)
+#define	RW_WRITE_HELD(x)	((x)->rw_wr_owner == curthread)
+#define	RW_LOCK_HELD(x)		(RW_READ_HELD(x) || RW_WRITE_HELD(x))
+
+extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg);
+extern void rw_destroy(krwlock_t *rwlp);
+extern void rw_enter(krwlock_t *rwlp, krw_t rw);
+extern int rw_tryenter(krwlock_t *rwlp, krw_t rw);
+extern int rw_tryupgrade(krwlock_t *rwlp);
+extern void rw_exit(krwlock_t *rwlp);
+#define	rw_downgrade(rwlp) do { } while (0)
+
+extern uid_t crgetuid(cred_t *cr);
+extern gid_t crgetgid(cred_t *cr);
+extern int crgetngroups(cred_t *cr);
+extern gid_t *crgetgroups(cred_t *cr);
+
+/*
+ * Condition variables
+ */
+#define CV_MAGIC	0xd31ea9a83b1b30c4ull
+
+typedef struct kcondvar {
+	uint64_t		cv_magic;
+	pthread_cond_t		cv;
+} kcondvar_t;
+
+#define	CV_DEFAULT	0
+
+extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg);
+extern void cv_destroy(kcondvar_t *cv);
+extern void cv_wait(kcondvar_t *cv, kmutex_t *mp);
+extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime);
+extern void cv_signal(kcondvar_t *cv);
+extern void cv_broadcast(kcondvar_t *cv);
+
+/*
+ * kstat creation, installation and deletion
+ */
+extern kstat_t *kstat_create(char *, int,
+    char *, char *, uchar_t, ulong_t, uchar_t);
+extern void kstat_install(kstat_t *);
+extern void kstat_delete(kstat_t *);
+
+/*
+ * Kernel memory
+ */
+#define	KM_SLEEP		UMEM_NOFAIL
+#define	KM_PUSHPAGE		KM_SLEEP
+#define	KM_NOSLEEP		UMEM_DEFAULT
+#define	KM_NODEBUG		0x0
+#define	KMC_NODEBUG		UMC_NODEBUG
+#define	kmem_alloc(_s, _f)	umem_alloc(_s, _f)
+#define	kmem_zalloc(_s, _f)	umem_zalloc(_s, _f)
+#define	kmem_free(_b, _s)	umem_free(_b, _s)
+#define	vmem_alloc(_s, _f)	kmem_alloc(_s, _f)
+#define	vmem_zalloc(_s, _f)	kmem_zalloc(_s, _f)
+#define	vmem_free(_b, _s)	kmem_free(_b, _s)
+#define	kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \
+	umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i)
+#define	kmem_cache_destroy(_c)	umem_cache_destroy(_c)
+#define	kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f)
+#define	kmem_cache_free(_c, _b)	umem_cache_free(_c, _b)
+#define	kmem_debugging()	0
+#define	kmem_cache_reap_now(_c)		/* nothing */
+#define	kmem_cache_set_move(_c, _cb)	/* nothing */
+#define	POINTER_INVALIDATE(_pp)		/* nothing */
+#define	POINTER_IS_VALID(_p)	0
+
+typedef umem_cache_t kmem_cache_t;
+
+typedef enum kmem_cbrc {
+	KMEM_CBRC_YES,
+	KMEM_CBRC_NO,
+	KMEM_CBRC_LATER,
+	KMEM_CBRC_DONT_NEED,
+	KMEM_CBRC_DONT_KNOW
+} kmem_cbrc_t;
+
+/*
+ * Task queues
+ */
+typedef struct taskq taskq_t;
+typedef uintptr_t taskqid_t;
+typedef void (task_func_t)(void *);
+
+#define	TASKQ_PREPOPULATE	0x0001
+#define	TASKQ_CPR_SAFE		0x0002	/* Use CPR safe protocol */
+#define	TASKQ_DYNAMIC		0x0004	/* Use dynamic thread scheduling */
+#define	TASKQ_THREADS_CPU_PCT	0x0008	/* Scale # threads by # cpus */
+#define	TASKQ_DC_BATCH		0x0010	/* Mark threads as batch */
+
+#define	TQ_SLEEP	KM_SLEEP	/* Can block for memory */
+#define	TQ_NOSLEEP	KM_NOSLEEP	/* cannot block for memory; may fail */
+#define	TQ_NOQUEUE	0x02		/* Do not enqueue if can't dispatch */
+#define	TQ_FRONT	0x08		/* Queue in front */
+
+extern taskq_t *system_taskq;
+
+extern taskq_t	*taskq_create(const char *, int, pri_t, int, int, uint_t);
+#define	taskq_create_proc(a, b, c, d, e, p, f) \
+	    (taskq_create(a, b, c, d, e, f))
+#define	taskq_create_sysdc(a, b, d, e, p, dc, f) \
+	    (taskq_create(a, b, maxclsyspri, d, e, f))
+extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
+extern void	taskq_destroy(taskq_t *);
+extern void	taskq_wait(taskq_t *);
+extern int	taskq_member(taskq_t *, kthread_t *);
+extern void	system_taskq_init(void);
+extern void	system_taskq_fini(void);
+
+#define	XVA_MAPSIZE	3
+#define	XVA_MAGIC	0x78766174
+
+/*
+ * vnodes
+ */
+typedef struct vnode {
+	uint64_t	v_size;
+	int		v_fd;
+	char		*v_path;
+} vnode_t;
+
+#define	AV_SCANSTAMP_SZ	32		/* length of anti-virus scanstamp */
+
+typedef struct xoptattr {
+	timestruc_t	xoa_createtime;	/* Create time of file */
+	uint8_t		xoa_archive;
+	uint8_t		xoa_system;
+	uint8_t		xoa_readonly;
+	uint8_t		xoa_hidden;
+	uint8_t		xoa_nounlink;
+	uint8_t		xoa_immutable;
+	uint8_t		xoa_appendonly;
+	uint8_t		xoa_nodump;
+	uint8_t		xoa_settable;
+	uint8_t		xoa_opaque;
+	uint8_t		xoa_av_quarantined;
+	uint8_t		xoa_av_modified;
+	uint8_t		xoa_av_scanstamp[AV_SCANSTAMP_SZ];
+	uint8_t		xoa_reparse;
+	uint8_t		xoa_offline;
+	uint8_t		xoa_sparse;
+} xoptattr_t;
+
+typedef struct vattr {
+	uint_t		va_mask;	/* bit-mask of attributes */
+	u_offset_t	va_size;	/* file size in bytes */
+} vattr_t;
+
+
+typedef struct xvattr {
+	vattr_t		xva_vattr;	/* Embedded vattr structure */
+	uint32_t	xva_magic;	/* Magic Number */
+	uint32_t	xva_mapsize;	/* Size of attr bitmap (32-bit words) */
+	uint32_t	*xva_rtnattrmapp;	/* Ptr to xva_rtnattrmap[] */
+	uint32_t	xva_reqattrmap[XVA_MAPSIZE];	/* Requested attrs */
+	uint32_t	xva_rtnattrmap[XVA_MAPSIZE];	/* Returned attrs */
+	xoptattr_t	xva_xoptattrs;	/* Optional attributes */
+} xvattr_t;
+
+typedef struct vsecattr {
+	uint_t		vsa_mask;	/* See below */
+	int		vsa_aclcnt;	/* ACL entry count */
+	void		*vsa_aclentp;	/* pointer to ACL entries */
+	int		vsa_dfaclcnt;	/* default ACL entry count */
+	void		*vsa_dfaclentp;	/* pointer to default ACL entries */
+	size_t		vsa_aclentsz;	/* ACE size in bytes of vsa_aclentp */
+} vsecattr_t;
+
+#define	AT_TYPE		0x00001
+#define	AT_MODE		0x00002
+#define	AT_UID		0x00004
+#define	AT_GID		0x00008
+#define	AT_FSID		0x00010
+#define	AT_NODEID	0x00020
+#define	AT_NLINK	0x00040
+#define	AT_SIZE		0x00080
+#define	AT_ATIME	0x00100
+#define	AT_MTIME	0x00200
+#define	AT_CTIME	0x00400
+#define	AT_RDEV		0x00800
+#define	AT_BLKSIZE	0x01000
+#define	AT_NBLOCKS	0x02000
+#define	AT_SEQ		0x08000
+#define	AT_XVATTR	0x10000
+
+#define	CRCREAT		0
+
+extern int fop_getattr(vnode_t *vp, vattr_t *vap);
+
+#define	VOP_CLOSE(vp, f, c, o, cr, ct)	0
+#define	VOP_PUTPAGE(vp, of, sz, fl, cr, ct)	0
+#define	VOP_GETATTR(vp, vap, fl, cr, ct)  fop_getattr((vp), (vap));
+
+#define	VOP_FSYNC(vp, f, cr, ct)	fsync((vp)->v_fd)
+
+#define	VN_RELE(vp)	vn_close(vp)
+
+extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
+    int x2, int x3);
+extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
+    int x2, int x3, vnode_t *vp, int fd);
+extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
+    offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
+extern void vn_close(vnode_t *vp);
+
+#define	vn_remove(path, x1, x2)		remove(path)
+#define	vn_rename(from, to, seg)	rename((from), (to))
+#define	vn_is_readonly(vp)		B_FALSE
+
+extern vnode_t *rootdir;
+
+#include <sys/file.h>		/* for FREAD, FWRITE, etc */
+
+/*
+ * Random stuff
+ */
+#define	ddi_get_lbolt()		(gethrtime() >> 23)
+#define	ddi_get_lbolt64()	(gethrtime() >> 23)
+#define	hz	119	/* frequency when using gethrtime() >> 23 for lbolt */
+
+extern void delay(clock_t ticks);
+
+#define	gethrestime_sec() time(NULL)
+#define	gethrestime(t) \
+	do {\
+		(t)->tv_sec = gethrestime_sec();\
+		(t)->tv_nsec = 0;\
+	} while (0);
+
+#define	max_ncpus	64
+
+#define	minclsyspri	60
+#define	maxclsyspri	99
+
+#define	CPU_SEQID	(pthread_self() & (max_ncpus - 1))
+
+#define	kcred		NULL
+#define	CRED()		NULL
+
+#define	ptob(x)		((x) * PAGESIZE)
+
+extern uint64_t physmem;
+
+extern int highbit(ulong_t i);
+extern int random_get_bytes(uint8_t *ptr, size_t len);
+extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
+
+extern void kernel_init(int);
+extern void kernel_fini(void);
+
+struct spa;
+extern void nicenum(uint64_t num, char *buf);
+extern void show_pool_stats(struct spa *);
+
+typedef struct callb_cpr {
+	kmutex_t	*cc_lockp;
+} callb_cpr_t;
+
+#define	CALLB_CPR_INIT(cp, lockp, func, name)	{		\
+	(cp)->cc_lockp = lockp;					\
+}
+
+#define	CALLB_CPR_SAFE_BEGIN(cp) {				\
+	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
+}
+
+#define	CALLB_CPR_SAFE_END(cp, lockp) {				\
+	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
+}
+
+#define	CALLB_CPR_EXIT(cp) {					\
+	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
+	mutex_exit((cp)->cc_lockp);				\
+}
+
+#define	zone_dataset_visible(x, y)	(1)
+#define	INGLOBALZONE(z)			(1)
+
+extern char *kmem_vasprintf(const char *fmt, va_list adx);
+extern char *kmem_asprintf(const char *fmt, ...);
+#define	strfree(str) kmem_free((str), strlen(str)+1)
+
+/*
+ * Hostname information
+ */
+extern char hw_serial[];	/* for userland-emulated hostid access */
+extern int ddi_strtoul(const char *str, char **nptr, int base,
+    unsigned long *result);
+
+extern int ddi_strtoull(const char *str, char **nptr, int base,
+    u_longlong_t *result);
+
+/* ZFS Boot Related stuff. */
+
+struct _buf {
+	intptr_t	_fd;
+};
+
+struct bootstat {
+	uint64_t st_size;
+};
+
+typedef struct ace_object {
+	uid_t		a_who;
+	uint32_t	a_access_mask;
+	uint16_t	a_flags;
+	uint16_t	a_type;
+	uint8_t		a_obj_type[16];
+	uint8_t		a_inherit_obj_type[16];
+} ace_object_t;
+
+
+#define	ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE	0x05
+#define	ACE_ACCESS_DENIED_OBJECT_ACE_TYPE	0x06
+#define	ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE	0x07
+#define	ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE	0x08
+
+extern struct _buf *kobj_open_file(char *name);
+extern int kobj_read_file(struct _buf *file, char *buf, unsigned size,
+    unsigned off);
+extern void kobj_close_file(struct _buf *file);
+extern int kobj_get_filesize(struct _buf *file, uint64_t *size);
+extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
+extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
+    cred_t *cr);
+extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
+extern zoneid_t getzoneid(void);
+
+/* SID stuff */
+typedef struct ksiddomain {
+	uint_t	kd_ref;
+	uint_t	kd_len;
+	char	*kd_name;
+} ksiddomain_t;
+
+ksiddomain_t *ksid_lookupdomain(const char *);
+void ksiddomain_rele(ksiddomain_t *);
+
+#define	DDI_SLEEP	KM_SLEEP
+#define	ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
+	sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)
+
+#endif /* _KERNEL */
+
+#endif	/* _SYS_ZFS_CONTEXT_H */