-/* -*- 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.
* 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/
#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;
+}
+
+void init_waitqueue_entry_current(struct cfs_waitlink *link)
{
- LASSERT(waitq != NULL);
- (void)waitq;
+ LASSERT(link != NULL);
+ (void)link;
}
-void cfs_waitlink_init(struct cfs_waitlink *link)
+void add_wait_queue(struct cfs_waitq *waitq, struct cfs_waitlink *link)
{
- LASSERT(link != NULL);
- (void)link;
+ LASSERT(waitq != NULL);
+ LASSERT(link != NULL);
+ (void)waitq;
+ (void)link;
}
-void cfs_waitq_add(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_add_exclusive(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);
}
-void cfs_waitq_del(struct cfs_waitq *waitq, struct cfs_waitlink *link)
+void remove_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;
}
-int cfs_waitq_active(struct cfs_waitq *waitq)
+int waitqueue_active(struct cfs_waitq *waitq)
{
- LASSERT(waitq != NULL);
- (void)waitq;
- return 0;
+ LASSERT(waitq != NULL);
+ (void)waitq;
+ return 0;
}
-void cfs_waitq_signal(struct cfs_waitq *waitq)
+void wake_up(struct cfs_waitq *waitq)
{
- LASSERT(waitq != NULL);
- (void)waitq;
+ LASSERT(waitq != NULL);
+ (void)waitq;
}
-void cfs_waitq_signal_nr(struct cfs_waitq *waitq, int nr)
+void wake_up_nr(struct cfs_waitq *waitq, int nr)
{
- LASSERT(waitq != NULL);
- (void)waitq;
+ LASSERT(waitq != NULL);
+ (void)waitq;
}
-void cfs_waitq_broadcast(struct cfs_waitq *waitq)
+void wake_up_all(struct cfs_waitq *waitq)
{
- LASSERT(waitq != NULL);
- (void)waitq;
+ LASSERT(waitq != NULL);
+ (void)waitq;
}
-void cfs_waitq_wait(struct cfs_waitlink *link, cfs_task_state_t state)
+void waitq_wait(struct cfs_waitlink *link, long state)
{
- LASSERT(link != NULL);
- (void)link;
+ LASSERT(link != NULL);
+ (void)link;
- /* well, wait for something to happen */
- cfs_call_wait_handler(0);
+ /* well, wait for something to happen */
+ call_wait_handler(0);
}
-int64_t cfs_waitq_timedwait(struct cfs_waitlink *link, cfs_task_state_t state,
- int64_t timeout)
+int64_t waitq_timedwait(struct cfs_waitlink *link, long state,
+ int64_t timeout)
{
- LASSERT(link != NULL);
- (void)link;
- cfs_call_wait_handler(timeout);
- return 0;
+ LASSERT(link != NULL);
+ (void)link;
+ call_wait_handler(timeout);
+ return 0;
}
-void cfs_schedule_timeout_and_set_state(cfs_task_state_t state, int64_t timeout)
+void schedule_timeout_and_set_state(long state, int64_t timeout)
{
- cfs_waitlink_t l;
- /* sleep(timeout) here instead? */
- cfs_waitq_timedwait(&l, state, timeout);
+ wait_queue_t l;
+ /* sleep(timeout) here instead? */
+ waitq_timedwait(&l, state, timeout);
}
void
cfs_pause(cfs_duration_t d)
{
- struct timespec s;
+ struct timespec s;
- cfs_duration_nsec(d, &s);
- nanosleep(&s, NULL);
+ cfs_duration_nsec(d, &s);
+ nanosleep(&s, NULL);
}
-int cfs_need_resched(void)
+int need_resched(void)
{
- return 0;
+ return 0;
}
-void cfs_cond_resched(void)
+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;
}
-#ifdef HAVE_PTHREAD
+#ifdef HAVE_LIBPTHREAD
/*
* Threads
(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;
+ if (targ_p == NULL)
+ return ERR_PTR(-ENOMEM);
- targ_p->f = func;
- targ_p->arg = arg;
+ 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 -rc;
+ 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();
}
-gid_t cfs_curproc_gid(void)
+gid_t current_gid(void)
{
return getgid();
}
-uid_t cfs_curproc_fsuid(void)
+uid_t current_fsuid(void)
{
return getuid();
}
-gid_t cfs_curproc_fsgid(void)
+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)
{
/*
*/
}
-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;
+ sigset_t old;
+ int rc;
- rc = sigprocmask(SIG_SETMASK, &blocks, &old);
- LASSERT (rc == 0);
+ /* 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)
/* __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();
}
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