-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (c) 2002, 2003 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_LNET
-#ifndef AUTOCONF_INCLUDED
-#include <linux/config.h>
-#endif
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/fs_struct.h>
+#include <linux/sched.h>
+
#include <libcfs/libcfs.h>
#if defined(CONFIG_KGDB)
#include <asm/kgdb.h>
#endif
-void cfs_enter_debugger(void)
+void cfs_init_timer(cfs_timer_t *t)
{
-#if defined(CONFIG_KGDB)
- BREAKPOINT();
-#elif defined(__arch_um__)
- asm("int $3");
-#else
- /* nothing */
-#endif
+ init_timer(t);
}
+EXPORT_SYMBOL(cfs_init_timer);
-void cfs_daemonize(char *str) {
- unsigned long flags;
-
- lock_kernel();
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,63))
- daemonize(str);
-#else
- daemonize();
- exit_files(current);
- reparent_to_init();
- snprintf (current->comm, sizeof (current->comm), "%s", str);
-#endif
- SIGNAL_MASK_LOCK(current, flags);
- sigfillset(¤t->blocked);
- RECALC_SIGPENDING;
- SIGNAL_MASK_UNLOCK(current, flags);
- unlock_kernel();
-}
-
-int cfs_daemonize_ctxt(char *str) {
- struct task_struct *tsk = current;
- struct fs_struct *fs = NULL;
-
- cfs_daemonize(str);
- fs = copy_fs_struct(tsk->fs);
- if (fs == NULL)
- return -ENOMEM;
- exit_fs(tsk);
- tsk->fs = fs;
- return 0;
+void cfs_timer_init(cfs_timer_t *t, cfs_timer_func_t *func, void *arg)
+{
+ init_timer(t);
+ t->function = func;
+ t->data = (unsigned long)arg;
}
+EXPORT_SYMBOL(cfs_timer_init);
+void cfs_timer_done(cfs_timer_t *t)
+{
+ return;
+}
+EXPORT_SYMBOL(cfs_timer_done);
-sigset_t
-cfs_get_blockedsigs(void)
+void cfs_timer_arm(cfs_timer_t *t, cfs_time_t deadline)
{
- unsigned long flags;
- sigset_t old;
+ mod_timer(t, deadline);
+}
+EXPORT_SYMBOL(cfs_timer_arm);
- SIGNAL_MASK_LOCK(current, flags);
- old = current->blocked;
- SIGNAL_MASK_UNLOCK(current, flags);
- return old;
+void cfs_timer_disarm(cfs_timer_t *t)
+{
+ del_timer(t);
}
+EXPORT_SYMBOL(cfs_timer_disarm);
-sigset_t
-cfs_block_allsigs(void)
+int cfs_timer_is_armed(cfs_timer_t *t)
{
- unsigned long flags;
- sigset_t old;
+ return timer_pending(t);
+}
+EXPORT_SYMBOL(cfs_timer_is_armed);
- SIGNAL_MASK_LOCK(current, flags);
- old = current->blocked;
- sigfillset(¤t->blocked);
- RECALC_SIGPENDING;
- SIGNAL_MASK_UNLOCK(current, flags);
+cfs_time_t cfs_timer_deadline(cfs_timer_t *t)
+{
+ return t->expires;
+}
+EXPORT_SYMBOL(cfs_timer_deadline);
- return old;
+void cfs_enter_debugger(void)
+{
+#if defined(CONFIG_KGDB)
+// BREAKPOINT();
+#else
+ /* nothing */
+#endif
}
sigset_t
-cfs_block_sigs(sigset_t bits)
+cfs_block_allsigs(void)
{
- unsigned long flags;
- sigset_t old;
+ unsigned long flags;
+ sigset_t old;
+
+ spin_lock_irqsave(¤t->sighand->siglock, flags);
+ old = current->blocked;
+ sigfillset(¤t->blocked);
+ recalc_sigpending();
+ spin_unlock_irqrestore(¤t->sighand->siglock, flags);
+ return old;
+}
- SIGNAL_MASK_LOCK(current, flags);
- old = current->blocked;
- current->blocked = bits;
- RECALC_SIGPENDING;
- SIGNAL_MASK_UNLOCK(current, flags);
- return old;
+sigset_t cfs_block_sigs(unsigned long sigs)
+{
+ unsigned long flags;
+ sigset_t old;
+
+ spin_lock_irqsave(¤t->sighand->siglock, flags);
+ old = current->blocked;
+ sigaddsetmask(¤t->blocked, sigs);
+ recalc_sigpending();
+ spin_unlock_irqrestore(¤t->sighand->siglock, flags);
+ return old;
+}
+
+/* Block all signals except for the @sigs */
+sigset_t cfs_block_sigsinv(unsigned long sigs)
+{
+ unsigned long flags;
+ sigset_t old;
+
+ spin_lock_irqsave(¤t->sighand->siglock, flags);
+ old = current->blocked;
+ sigaddsetmask(¤t->blocked, ~sigs);
+ recalc_sigpending();
+ spin_unlock_irqrestore(¤t->sighand->siglock, flags);
+ return old;
}
void
cfs_restore_sigs (cfs_sigset_t old)
{
- unsigned long flags;
+ unsigned long flags;
- SIGNAL_MASK_LOCK(current, flags);
- current->blocked = old;
- RECALC_SIGPENDING;
- SIGNAL_MASK_UNLOCK(current, flags);
+ spin_lock_irqsave(¤t->sighand->siglock, flags);
+ current->blocked = old;
+ recalc_sigpending();
+ spin_unlock_irqrestore(¤t->sighand->siglock, flags);
}
int
cfs_signal_pending(void)
{
- return signal_pending(current);
+ return signal_pending(current);
}
void
cfs_clear_sigpending(void)
{
- unsigned long flags;
+ unsigned long flags;
- SIGNAL_MASK_LOCK(current, flags);
- CLEAR_SIGPENDING;
- SIGNAL_MASK_UNLOCK(current, flags);
+ spin_lock_irqsave(¤t->sighand->siglock, flags);
+ clear_tsk_thread_flag(current, TIF_SIGPENDING);
+ spin_unlock_irqrestore(¤t->sighand->siglock, flags);
}
int
EXPORT_SYMBOL(libcfs_arch_init);
EXPORT_SYMBOL(libcfs_arch_cleanup);
-EXPORT_SYMBOL(cfs_daemonize);
-EXPORT_SYMBOL(cfs_daemonize_ctxt);
+EXPORT_SYMBOL(cfs_enter_debugger);
EXPORT_SYMBOL(cfs_block_allsigs);
EXPORT_SYMBOL(cfs_block_sigs);
-EXPORT_SYMBOL(cfs_get_blockedsigs);
+EXPORT_SYMBOL(cfs_block_sigsinv);
EXPORT_SYMBOL(cfs_restore_sigs);
EXPORT_SYMBOL(cfs_signal_pending);
EXPORT_SYMBOL(cfs_clear_sigpending);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff