Create linux-kernel-device topic branch.

This branch contains the majority of the changes required to cleanly
intergrate with Linux style special devices (/dev/zfs).  Mainly this
means dropping all the Solaris style callbacks and replacing them
with the Linux equivilants.  Additionally, this means slightly
expanding the zfs_ioc_* functions to include a 'struct file *' to
allow the tracking of private data for each open file descriptor.
This is very helpful when you need to maintain a little information
about the open file between ioctls().

.topdeps

@@ -1,3 +1 @@
-gcc-branch
-fix-branch
-feature-branch
+zfs-branch

.topmsg

@@ -1,19 +1,13 @@
 From: Brian Behlendorf <behlendorf1@llnl.gov>
-Subject: [PATCH] zfs branch
+Subject: [PATCH] linux-kernel-device
 
-Merged result of all changes which are relevant to both Solaris
-and Linux builds of the ZFS code.  These are changes where there
-is a reasonable chance they will be accepted upstream.
-
-Additionally, since this is effectively the root of the linux
-ZFS tree the core linux build system is added here.  This
-includes autogen.sh, configure.ac, m4 macros, some scripts/*,
-and makefiles for all the core ZFS components.  Linux-only
-features which require tweaks to the build system should appear
-on the relevant topic branches.  All autotools products which
-result from autogen.sh are commited to the linux-configure-branch.
-
-This branch also contains the META, ChangeLog, AUTHORS, TODO,
-and README, files.
+This branch contains the majority of the changes required to cleanly
+intergrate with Linux style special devices (/dev/zfs).  Mainly this
+means dropping all the Solaris style callbacks and replacing them
+with the Linux equivilants.  Additionally, this means slightly
+expanding the zfs_ioc_* functions to include a 'struct file *' to
+allow the tracking of private data for each open file descriptor.
+This is very helpful when you need to maintain a little information
+about the open file between ioctls().
 
 Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

module/zfs/include/sys/zfs_ioctl.h

@@ -123,6 +123,9 @@ typedef struct zinject_record {
 #define	ZINJECT_FLUSH_ARC	0x2
 #define	ZINJECT_UNLOAD_SPA	0x4
 
+#define	ZEVENT_NONBLOCK		0x1
+#define	ZEVENT_SIZE		1024
+
 typedef struct zfs_share {
 	uint64_t	z_exportdata;
 	uint64_t	z_sharedata;
@@ -187,6 +190,9 @@ typedef struct zfs_creat {
 
 extern dev_info_t *zfs_dip;
 
+extern int get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp);
+extern int put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl);
+
 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);