Author: brooks Date: Sat Feb 10 01:09:22 2018 New Revision: 329097 URL: https://svnweb.freebsd.org/changeset/base/329097
Log: Use syscall_helper_register() to register syscalls and initialize though the module interface. This is the more common approach and the syscall_helper interface is easier to understand. Reviewed by: jhb Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14251 Modified: head/sys/nlm/nlm_prot_impl.c Modified: head/sys/nlm/nlm_prot_impl.c ============================================================================== --- head/sys/nlm/nlm_prot_impl.c Sat Feb 10 00:55:46 2018 (r329096) +++ head/sys/nlm/nlm_prot_impl.c Sat Feb 10 01:09:22 2018 (r329097) @@ -93,17 +93,10 @@ static SYSCTL_NODE(_vfs_nlm, OID_AUTO, sysid, CTLFLAG_ /* * Syscall hooks */ -static int nlm_syscall_offset = SYS_nlm_syscall; -static struct sysent nlm_syscall_prev_sysent; -#if __FreeBSD_version < 700000 -static struct sysent nlm_syscall_sysent = { - (sizeof(struct nlm_syscall_args) / sizeof(register_t)) | SYF_MPSAFE, - (sy_call_t *) nlm_syscall +static struct syscall_helper_data nlm_syscalls[] = { + SYSCALL_INIT_HELPER(nlm_syscall), + SYSCALL_INIT_LAST }; -#else -MAKE_SYSENT(nlm_syscall); -#endif -static bool_t nlm_syscall_registered = FALSE; /* * Debug level passed in from userland. We also support a sysctl hook @@ -287,8 +280,8 @@ ng_cookie(struct netobj *src) /* * Initialise NLM globals. */ -static void -nlm_init(void *dummy) +static int +nlm_init(void) { int error; @@ -296,24 +289,18 @@ nlm_init(void *dummy) TAILQ_INIT(&nlm_waiting_locks); TAILQ_INIT(&nlm_hosts); - error = syscall_register(&nlm_syscall_offset, &nlm_syscall_sysent, - &nlm_syscall_prev_sysent, SY_THR_STATIC_KLD); - if (error) + error = syscall_helper_register(nlm_syscalls, SY_THR_STATIC_KLD); + if (error != 0) NLM_ERR("Can't register NLM syscall\n"); - else - nlm_syscall_registered = TRUE; + return (error); } -SYSINIT(nlm_init, SI_SUB_LOCK, SI_ORDER_FIRST, nlm_init, NULL); static void -nlm_uninit(void *dummy) +nlm_uninit(void) { - if (nlm_syscall_registered) - syscall_deregister(&nlm_syscall_offset, - &nlm_syscall_prev_sysent); + syscall_helper_unregister(nlm_syscalls); } -SYSUNINIT(nlm_uninit, SI_SUB_LOCK, SI_ORDER_FIRST, nlm_uninit, NULL); /* * Create a netobj from an arbitrary source. @@ -2412,8 +2399,10 @@ nfslockd_modevent(module_t mod, int type, void *data) switch (type) { case MOD_LOAD: - return (0); + return (nlm_init()); + case MOD_UNLOAD: + nlm_uninit(); /* The NLM module cannot be safely unloaded. */ /* FALLTHROUGH */ default: _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
