Cleanly split Linux proc.h (fs) from conflicting Solaris proc.h (process)

Under linux the proc.h header is for the /proc filesystem, and under
Solaris the proc/h header if for processes.  This patch correctly
moves the Linux proc functionality in a linux/proc_compat.h header
and leaves the sys/proc.h for use by Solaris.  Minor updates were
required to all the call sites where it was included of course.

include/sys/kstat.h

@@ -26,10 +26,10 @@
 #define _SPL_KSTAT_H
 
 #include <linux/module.h>
+#include <linux/proc_compat.h>
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/kmem.h>
-#include <sys/proc.h>
 
 #define KSTAT_STRLEN            31
 

include/sys/proc.h

@@ -25,33 +25,4 @@
 #ifndef _SPL_PROC_H
 #define _SPL_PROC_H
 
-#include <linux/proc_fs.h>
-#include <linux/kmod.h>
-#include <linux/ctype.h>
-#include <linux/sysctl.h>
-#include <linux/seq_file.h>
-#include <sys/sysmacros.h>
-#include <sys/systeminfo.h>
-#include <sys/kmem.h>
-#include <sys/mutex.h>
-#include <sys/kstat.h>
-#include <sys/debug.h>
-
-#ifdef CONFIG_SYSCTL
-#ifdef HAVE_2ARGS_REGISTER_SYSCTL
-#define spl_register_sysctl_table(t, a)	register_sysctl_table(t, a)
-#else
-#define spl_register_sysctl_table(t, a)	register_sysctl_table(t)
-#endif /* HAVE_2ARGS_REGISTER_SYSCTL */
-#define spl_unregister_sysctl_table(t)	unregister_sysctl_table(t)
-#endif /* CONFIG_SYSCTL */
-
-extern struct proc_dir_entry *proc_spl_kstat;
-struct proc_dir_entry *proc_dir_entry_find(struct proc_dir_entry *root,
-					   const char *str);
-int proc_dir_entries(struct proc_dir_entry *root);
-
-int proc_init(void);
-void proc_fini(void);
-
 #endif /* SPL_PROC_H */

include/sys/sysmacros.h

@@ -64,11 +64,12 @@
 #define DEV_BSIZE			512
 #define DEV_BSHIFT			9 /* log2(DEV_BSIZE) */
 
-#define curproc				current
 #define proc_pageout			NULL
-#define max_ncpus                       64
+#define curproc				get_current()
+#define max_ncpus			64
 #define CPU_SEQID			smp_processor_id() /* I think... */
 #define _NOTE(x)
+#define is_system_labeled()		0
 
 
 #define RLIM64_INFINITY			RLIM_INFINITY
@@ -131,7 +132,6 @@
 extern char spl_version[16];
 extern long spl_hostid;
 extern char hw_serial[11];
-extern int p0;
 
 /* Missing misc functions */
 extern int highbit(unsigned long i);

include/sys/taskq.h

@@ -94,6 +94,10 @@ void spl_taskq_fini(void);
 #define taskq_wait(tq)                     __taskq_wait(tq)
 #define taskq_dispatch(tq, f, p, fl)       __taskq_dispatch(tq, f, p, fl)
 #define taskq_create(n, th, p, mi, ma, fl) __taskq_create(n, th, p, mi, ma, fl)
+#define taskq_create_proc(n, th, p, mi, ma, pr, fl)	\
+	__taskq_create(n, th, p, mi, ma, fl)
+#define taskq_create_sysdc(n, th, mi, ma, pr, dc, fl)	\
+	__taskq_create(n, th, maxclsyspri, mi, ma, fl)
 #define taskq_destroy(tq)                  __taskq_destroy(tq)
 
 #endif  /* _SPL_TASKQ_H */

include/sys/thread.h

@@ -41,11 +41,6 @@
 #define TS_RUN				TASK_RUNNING
 #define TS_ZOMB				EXIT_ZOMBIE
 #define TS_STOPPED			TASK_STOPPED
-#if 0
-#define TS_FREE				0x00	/* No clean linux mapping */
-#define TS_ONPROC			0x04	/* No clean linux mapping */
-#define TS_WAIT				0x20	/* No clean linux mapping */
-#endif
 
 typedef void (*thread_func_t)(void *);
 
@@ -53,13 +48,13 @@ typedef void (*thread_func_t)(void *);
 	__thread_create(stk, stksize, (thread_func_t)func,               \
 	                #func, arg, len, pp, state, pri)
 #define thread_exit()			__thread_exit()
+#define thread_join(t)			SBUG()
 #define curthread			get_current()
 
 extern kthread_t *__thread_create(caddr_t stk, size_t  stksize,
                                   thread_func_t func, const char *name,
-                                  void *args, size_t len, int *pp,
+                                  void *args, size_t len, proc_t *pp,
                                   int state, pri_t pri);
 extern void __thread_exit(void);
 
 #endif  /* _SPL_THREAD_H */
-

include/sys/types.h

@@ -39,6 +39,7 @@
 #include <linux/mutex_compat.h>
 #include <linux/module_compat.h>
 #include <linux/sysctl_compat.h>
+#include <linux/proc_compat.h>
 
 #ifndef HAVE_UINTPTR_T
 typedef unsigned long			uintptr_t;
@@ -63,6 +64,7 @@ typedef unsigned long long		rlim64_t;
 typedef long long			longlong_t;
 typedef long long			offset_t;
 typedef struct task_struct		kthread_t;
+typedef struct task_struct		proc_t;
 typedef struct vmem { }			vmem_t;
 typedef short				pri_t;
 typedef struct timespec			timestruc_t; /* definition per SVr4 */
@@ -79,4 +81,6 @@ typedef ulong_t				pgcnt_t;
 typedef long				spgcnt_t;
 typedef short				index_t;
 
+extern proc_t p0;
+
 #endif	/* _SPL_TYPES_H */