/* * net/9p/9p.c * * 9P entry point * * Copyright (C) 2007 by Latchesar Ionkov * Copyright (C) 2004 by Eric Van Hensbergen * Copyright (C) 2002 by Ron Minnich * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * 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 for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to: * Free Software Foundation * 51 Franklin Street, Fifth Floor * Boston, MA 02111-1301 USA * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_NET_9P_DEBUG unsigned int p9_debug_level = 0; /* feature-rific global debug level */ EXPORT_SYMBOL(p9_debug_level); module_param_named(debug, p9_debug_level, uint, 0); MODULE_PARM_DESC(debug, "9P debugging level"); void _p9_debug(enum p9_debug_flags level, const char *func, const char *fmt, ...) { struct va_format vaf; va_list args; if ((p9_debug_level & level) != level) return; va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; if (level == P9_DEBUG_9P) pr_notice("(%8.8d) %pV", task_pid_nr(current), &vaf); else pr_notice("-- %s (%d): %pV", func, task_pid_nr(current), &vaf); va_end(args); } EXPORT_SYMBOL(_p9_debug); #endif /* * Dynamic Transport Registration Routines * */ static DEFINE_SPINLOCK(v9fs_trans_lock); static LIST_HEAD(v9fs_trans_list); /** * v9fs_register_trans - register a new transport with 9p * @m: structure describing the transport module and entry points * */ void v9fs_register_trans(struct p9_trans_module *m) { spin_lock(&v9fs_trans_lock); list_add_tail(&m->list, &v9fs_trans_list); spin_unlock(&v9fs_trans_lock); } EXPORT_SYMBOL(v9fs_register_trans); /** * v9fs_unregister_trans - unregister a 9p transport * @m: the transport to remove * */ void v9fs_unregister_trans(struct p9_trans_module *m) { spin_lock(&v9fs_trans_lock); list_del_init(&m->list); spin_unlock(&v9fs_trans_lock); } EXPORT_SYMBOL(v9fs_unregister_trans); /** * v9fs_get_trans_by_name - get transport with the matching name * @name: string identifying transport * */ struct p9_trans_module *v9fs_get_trans_by_name(char *s) { struct p9_trans_module *t, *found = NULL; spin_lock(&v9fs_trans_lock); list_for_each_entry(t, &v9fs_trans_list, list) if (strcmp(t->name, s) == 0 && try_module_get(t->owner)) { found = t; break; } spin_unlock(&v9fs_trans_lock); return found; } EXPORT_SYMBOL(v9fs_get_trans_by_name); /** * v9fs_get_default_trans - get the default transport * */ struct p9_trans_module *v9fs_get_default_trans(void) { struct p9_trans_module *t, *found = NULL; spin_lock(&v9fs_trans_lock); list_for_each_entry(t, &v9fs_trans_list, list) if (t->def && try_module_get(t->owner)) { found = t; break; } if (!found) list_for_each_entry(t, &v9fs_trans_list, list) if (try_module_get(t->owner)) { found = t; break; } spin_unlock(&v9fs_trans_lock); return found; } EXPORT_SYMBOL(v9fs_get_default_trans); /** * v9fs_put_trans - put trans * @m: transport to put * */ void v9fs_put_trans(struct p9_trans_module *m) { if (m) module_put(m->owner); } /** * init_p9 - Initialize module * */ static int __init init_p9(void) { int ret = 0; p9_error_init(); pr_info("Installing 9P2000 support\n"); p9_trans_fd_init(); return ret; } /** * exit_p9 - shutdown module * */ static void __exit exit_p9(void) { pr_info("Unloading 9P2000 support\n"); p9_trans_fd_exit(); } module_init(init_p9) module_exit(exit_p9) MODULE_AUTHOR("Latchesar Ionkov "); MODULE_AUTHOR("Eric Van Hensbergen "); MODULE_AUTHOR("Ron Minnich "); MODULE_LICENSE("GPL"); class='ctrl'>
authorRuslan Ruslichenko <rruslich@cisco.com>2017-01-17 16:13:52 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-01-18 15:37:28 +0100
commit020eb3daaba2857b32c4cf4c82f503d6a00a67de (patch)
tree329a05b424d783db675a4c711bd7633575e8181b /tools/testing/selftests/ptp
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
x86/ioapic: Restore IO-APIC irq_chip retrigger callback
commit d32932d02e18 removed the irq_retrigger callback from the IO-APIC chip and did not add it to the new IO-APIC-IR irq chip. Unfortunately the software resend fallback is not enabled on X86, so edge interrupts which are received during the lazy disabled state of the interrupt line are not retriggered and therefor lost. Restore the callbacks. [ tglx: Massaged changelog ] Fixes: d32932d02e18 ("x86/irq: Convert IOAPIC to use hierarchical irqdomain interfaces") Signed-off-by: Ruslan Ruslichenko <rruslich@cisco.com> Cc: xe-linux-external@cisco.com Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484662432-13580-1-git-send-email-rruslich@cisco.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/testing/selftests/ptp')