X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=wrapper%2Fsplice.c;h=d7ef83d8a2c98443336d05ed8c0c32709d6be882;hb=1e543e7c292839b931f808ad341c85f24a859d00;hp=edc499c835efd2278e128d37d6ab8be5d8fb322c;hpb=d01202ff1f043dd04f62ab77aacea3c26cb65eb3;p=lttng-modules.git diff --git a/wrapper/splice.c b/wrapper/splice.c index edc499c8..d7ef83d8 100644 --- a/wrapper/splice.c +++ b/wrapper/splice.c @@ -1,11 +1,12 @@ -/* - * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com) +/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) * - * wrapper around vmalloc_sync_all. Using KALLSYMS to get its address when + * wrapper/splice.c + * + * wrapper around splice_to_pipe. Using KALLSYMS to get its address when * available, else we need to have a kernel that exports this function to GPL * modules. * - * Dual LGPL v2.1/GPL v2 license. + * Copyright (C) 2011-2012 Mathieu Desnoyers */ #ifdef CONFIG_KALLSYMS @@ -13,6 +14,7 @@ #include #include #include +#include static ssize_t (*splice_to_pipe_sym)(struct pipe_inode_info *pipe, @@ -22,11 +24,11 @@ ssize_t wrapper_splice_to_pipe(struct pipe_inode_info *pipe, struct splice_pipe_desc *spd) { if (!splice_to_pipe_sym) - splice_to_pipe_sym = (void *) kallsyms_lookup_name("splice_to_pipe"); + splice_to_pipe_sym = (void *) kallsyms_lookup_funcptr("splice_to_pipe"); if (splice_to_pipe_sym) { return splice_to_pipe_sym(pipe, spd); } else { - printk(KERN_WARNING "LTTng: splice_to_pipe symbol lookup failed.\n"); + printk_once(KERN_WARNING "LTTng: splice_to_pipe symbol lookup failed.\n"); return -ENOSYS; } }