X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=libcfs%2Flibcfs%2Fuser-prim.c;h=a912c949c0fc35a94047f80c4684220aa4245008;hb=7629b7f51568a8cb2bedf2460cbfb1f9446769ca;hp=ee381d67a72fd523e65cf8ad2abdc2035fd4ad45;hpb=c8616363809a73b3d4b6c736e6b55a84d7f137b4;p=fs%2Flustre-release.git

diff --git a/libcfs/libcfs/user-prim.c b/libcfs/libcfs/user-prim.c
index ee381d6..a912c94 100644
--- a/libcfs/libcfs/user-prim.c
+++ b/libcfs/libcfs/user-prim.c
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -26,8 +24,10 @@
  * GPL HEADER END
  */
 /*
- * Copyright  2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -46,139 +46,158 @@
 
 #ifndef __KERNEL__
 
+#include <string.h>
 #include <libcfs/libcfs.h>
 
 /*
  * Wait queue. No-op implementation.
  */
 
-void cfs_waitq_init(struct cfs_waitq *waitq)
+void init_waitqueue_head(struct cfs_waitq *waitq)
 {
-        LASSERT(waitq != NULL);
-        (void)waitq;
+	LASSERT(waitq != NULL);
+	(void)waitq;
 }
 
-void cfs_waitlink_init(struct cfs_waitlink *link)
+void init_waitqueue_entry_current(struct cfs_waitlink *link)
 {
-        LASSERT(link != NULL);
-        (void)link;
+	LASSERT(link != NULL);
+	(void)link;
 }
 
-void cfs_waitq_add(struct cfs_waitq *waitq, struct cfs_waitlink *link)
+void add_wait_queue(struct cfs_waitq *waitq, struct cfs_waitlink *link)
 {
-        LASSERT(waitq != NULL);
-        LASSERT(link != NULL);
-        (void)waitq;
-        (void)link;
+	LASSERT(waitq != NULL);
+	LASSERT(link != NULL);
+	(void)waitq;
+	(void)link;
 }
 
-void cfs_waitq_add_exclusive(struct cfs_waitq *waitq, struct cfs_waitlink *link)
+void add_wait_queue_exclusive(struct cfs_waitq *waitq, struct cfs_waitlink *link)
 {
-        LASSERT(waitq != NULL);
-        LASSERT(link != NULL);
-        (void)waitq;
-        (void)link;
+	LASSERT(waitq != NULL);
+	LASSERT(link != NULL);
+	(void)waitq;
+	(void)link;
 }
 
-void cfs_waitq_del(struct cfs_waitq *waitq, struct cfs_waitlink *link)
+void add_wait_queue_exclusive_head(struct cfs_waitq *waitq, struct cfs_waitlink *link)
 {
-        LASSERT(waitq != NULL);
-        LASSERT(link != NULL);
-        (void)waitq;
-        (void)link;
+	add_wait_queue_exclusive(waitq, link);
 }
 
-int cfs_waitq_active(struct cfs_waitq *waitq)
+void remove_wait_queue(struct cfs_waitq *waitq, struct cfs_waitlink *link)
 {
-        LASSERT(waitq != NULL);
-        (void)waitq;
-        return 0;
+	LASSERT(waitq != NULL);
+	LASSERT(link != NULL);
+	(void)waitq;
+	(void)link;
 }
 
-void cfs_waitq_signal(struct cfs_waitq *waitq)
+int waitqueue_active(struct cfs_waitq *waitq)
 {
-        LASSERT(waitq != NULL);
-        (void)waitq;
+	LASSERT(waitq != NULL);
+	(void)waitq;
+	return 0;
 }
 
-void cfs_waitq_signal_nr(struct cfs_waitq *waitq, int nr)
+void wake_up(struct cfs_waitq *waitq)
 {
-        LASSERT(waitq != NULL);
-        (void)waitq;
+	LASSERT(waitq != NULL);
+	(void)waitq;
 }
 
-void cfs_waitq_broadcast(struct cfs_waitq *waitq)
+void wake_up_nr(struct cfs_waitq *waitq, int nr)
 {
-        LASSERT(waitq != NULL);
-        (void)waitq;
+	LASSERT(waitq != NULL);
+	(void)waitq;
 }
 
-void cfs_waitq_wait(struct cfs_waitlink *link, cfs_task_state_t state)
+void wake_up_all(struct cfs_waitq *waitq)
 {
-        LASSERT(link != NULL);
-        (void)link;
+	LASSERT(waitq != NULL);
+	(void)waitq;
 }
 
-int64_t cfs_waitq_timedwait(struct cfs_waitlink *link, cfs_task_state_t state, 
-                            int64_t timeout)
+void waitq_wait(struct cfs_waitlink *link, long state)
 {
-        LASSERT(link != NULL);
-        (void)link;
-        return 0;
+	LASSERT(link != NULL);
+	(void)link;
+
+	/* well, wait for something to happen */
+	call_wait_handler(0);
 }
 
-void cfs_schedule_timeout(cfs_task_state_t state, int64_t timeout)
+int64_t waitq_timedwait(struct cfs_waitlink *link, long state,
+			int64_t timeout)
 {
-        cfs_waitlink_t    l;  
-        /* sleep(timeout) here instead? */
-        cfs_waitq_timedwait(&l, state, timeout);
+	LASSERT(link != NULL);
+	(void)link;
+	call_wait_handler(timeout);
+	return 0;
 }
 
-void 
+void schedule_timeout_and_set_state(long state, int64_t timeout)
+{
+	wait_queue_t    l;
+	/* sleep(timeout) here instead? */
+	waitq_timedwait(&l, state, timeout);
+}
+
+void
 cfs_pause(cfs_duration_t d)
 {
-        struct timespec s;
-        
-        cfs_duration_nsec(d, &s);
-        nanosleep(&s, NULL);
+	struct timespec s;
+
+	cfs_duration_nsec(d, &s);
+	nanosleep(&s, NULL);
+}
+
+int need_resched(void)
+{
+	return 0;
+}
+
+void cond_resched(void)
+{
 }
 
 /*
  * Timer
  */
 
-void cfs_init_timer(cfs_timer_t *t)
+void cfs_init_timer(struct timer_list *t)
 {
-        CFS_INIT_LIST_HEAD(&t->tl_list);
+	INIT_LIST_HEAD(&t->tl_list);
 }
 
-void cfs_timer_init(cfs_timer_t *l, cfs_timer_func_t *func, void *arg)
+void cfs_timer_init(struct timer_list *l, cfs_timer_func_t *func, void *arg)
 {
-        CFS_INIT_LIST_HEAD(&l->tl_list);
-        l->function = func;
-        l->data = (ulong_ptr_t)arg;
-        return;
+	INIT_LIST_HEAD(&l->tl_list);
+	l->function = func;
+	l->data = (ulong_ptr_t)arg;
+	return;
 }
 
-int cfs_timer_is_armed(cfs_timer_t *l)
+int cfs_timer_is_armed(struct timer_list *l)
 {
-        if (cfs_time_before(cfs_time_current(), l->expires))
-                return 1;
-        else
-                return 0;
+	if (cfs_time_before(cfs_time_current(), l->expires))
+		return 1;
+	else
+		return 0;
 }
 
-void cfs_timer_arm(cfs_timer_t *l, cfs_time_t deadline)
+void cfs_timer_arm(struct timer_list *l, cfs_time_t deadline)
 {
-        l->expires = deadline;
+	l->expires = deadline;
 }
 
-void cfs_timer_disarm(cfs_timer_t *l)
+void cfs_timer_disarm(struct timer_list *l)
 {
 }
-cfs_time_t cfs_timer_deadline(cfs_timer_t *l)
+cfs_time_t cfs_timer_deadline(struct timer_list *l)
 {
-        return l->expires;
+	return l->expires;
 }
 
 
@@ -189,7 +208,7 @@ cfs_time_t cfs_timer_deadline(cfs_timer_t *l)
  */
 
 struct lustre_thread_arg {
-        cfs_thread_t f; 
+        cfs_thread_t f;
         void *arg;
 };
 static void *cfs_thread_helper(void *data)
@@ -199,52 +218,72 @@ static void *cfs_thread_helper(void *data)
         void *arg = targ->arg;
 
         free(targ);
-        
+
         (void)f(arg);
         return NULL;
 }
-int cfs_create_thread(cfs_thread_t func, void *arg)
+
+void *kthread_run(cfs_thread_t func, void *arg, const char namefmt[], ...)
 {
-        pthread_t tid;
-        pthread_attr_t tattr;
-        int rc;
-        struct lustre_thread_arg *targ_p = malloc(sizeof(struct lustre_thread_arg));
+	pthread_t tid;
+	pthread_attr_t tattr;
+	int rc;
+	struct lustre_thread_arg *targ_p =
+				malloc(sizeof(struct lustre_thread_arg));
 
-        if ( targ_p == NULL )
-                return -ENOMEM;
-        
-        targ_p->f = func;
-        targ_p->arg = arg;
+	if (targ_p == NULL)
+		return ERR_PTR(-ENOMEM);
 
-        pthread_attr_init(&tattr); 
-        pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED);
-        rc = pthread_create(&tid, &tattr, cfs_thread_helper, targ_p);
-        pthread_attr_destroy(&tattr);
-        return -rc;
+	targ_p->f = func;
+	targ_p->arg = arg;
+
+	pthread_attr_init(&tattr);
+	pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED);
+	rc = pthread_create(&tid, &tattr, cfs_thread_helper, targ_p);
+	pthread_attr_destroy(&tattr);
+	return ERR_PTR(rc);
 }
 #endif
 
-uid_t cfs_curproc_uid(void)
+struct user_namespace init_user_ns __read_mostly;
+EXPORT_SYMBOL(init_user_ns);
+
+uid_t current_uid(void)
 {
         return getuid();
 }
 
-int cfs_parse_int_tunable(int *value, char *name)
+gid_t current_gid(void)
 {
-        char    *env = getenv(name);
-        char    *end;
-
-        if (env == NULL)
-                return 0;
+        return getgid();
+}
 
-        *value = (int)strtoull(env, &end, 0);
-        if (*end == 0)
-                return 0;
+uid_t current_fsuid(void)
+{
+        return getuid();
+}
 
-        CERROR("Can't parse tunable %s=%s\n", name, env);
-        return -EINVAL;
+gid_t current_fsgid(void)
+{
+        return getgid();
 }
 
+/* Read the environment variable of current process specified by @key. */
+int cfs_get_environ(const char *key, char *value, int *val_len)
+{
+	char *entry;
+	int len;
+
+	entry = getenv(key);
+	if (entry == NULL)
+		return -ENOENT;
+
+	len = strlcpy(value, entry, *val_len);
+	if (len >= *val_len)
+		return -EOVERFLOW;
+
+	return 0;
+}
 
 void cfs_enter_debugger(void)
 {
@@ -253,59 +292,69 @@ void cfs_enter_debugger(void)
          */
 }
 
-void cfs_daemonize(char *str)
+int unshare_fs_struct()
 {
-        return;
+	return 0;
 }
 
-int cfs_daemonize_ctxt(char *str)
+sigset_t cfs_block_allsigs(void)
 {
-        return 0;
+	sigset_t   all;
+	sigset_t   old;
+	int            rc;
+
+	sigfillset(&all);
+	rc = sigprocmask(SIG_BLOCK, &all, &old);
+	LASSERT(rc == 0);
+
+	return old;
 }
 
-cfs_sigset_t cfs_block_allsigs(void)
+sigset_t cfs_block_sigs(unsigned long sigs)
 {
-        cfs_sigset_t   all;
-        cfs_sigset_t   old;
-        int            rc;
+	sigset_t   old;
+	sigset_t   blocks = { { sigs } }; /* kludge */
+	int   rc;
 
-        sigfillset(&all);
-        rc = sigprocmask(SIG_SETMASK, &all, &old);
-        LASSERT(rc == 0);
+	rc = sigprocmask(SIG_BLOCK, &blocks, &old);
+	LASSERT (rc == 0);
 
-        return old;
+	return old;
 }
 
-cfs_sigset_t cfs_block_sigs(cfs_sigset_t blocks)
+/* Block all signals except for the @sigs. It's only used in
+ * Linux kernel, just a dummy here. */
+sigset_t cfs_block_sigsinv(unsigned long sigs)
 {
-        cfs_sigset_t   old;
-        int   rc;
-        
-        rc = sigprocmask(SIG_SETMASK, &blocks, &old);
-        LASSERT (rc == 0);
+	sigset_t old;
+	int rc;
+
+	/* Return old blocked sigs */
+	rc = sigprocmask(SIG_SETMASK, NULL, &old);
+	LASSERT(rc == 0);
 
-        return old;
+	return old;
 }
 
-void cfs_restore_sigs(cfs_sigset_t old)
+void cfs_restore_sigs(sigset_t old)
 {
-        int   rc = sigprocmask(SIG_SETMASK, &old, NULL);
+	int   rc = sigprocmask(SIG_SETMASK, &old, NULL);
 
-        LASSERT (rc == 0);
+	LASSERT (rc == 0);
 }
 
 int cfs_signal_pending(void)
 {
-        cfs_sigset_t    empty;
-        cfs_sigset_t    set;
-        int  rc;
+	sigset_t    empty;
+	sigset_t    set;
+	int  rc;
 
-        rc = sigpending(&set);
-        LASSERT (rc == 0);
+	rc = sigpending(&set);
+	LASSERT (rc == 0);
 
-        sigemptyset(&empty);
+	sigemptyset(&empty);
 
-        return !memcmp(&empty, &set, sizeof(set));
+	return !memcmp(&empty, &set, sizeof(set));
 }
 
 void cfs_clear_sigpending(void)
@@ -346,10 +395,10 @@ void *cfs_stack_trace_frame(struct cfs_stack_trace *trace, int frame_no)
 /* __linux__ */
 #endif
 
-void lbug_with_loc(const char *file, const char *func, const int line)
+void lbug_with_loc(struct libcfs_debug_msg_data *msgdata)
 {
         /* No libcfs_catastrophe in userspace! */
-        libcfs_debug_msg(NULL, 0, D_EMERG, file, func, line, "LBUG\n");
+        libcfs_debug_msg(msgdata, "LBUG\n");
         abort();
 }