Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965022AbaKNBPF (ORCPT ); Thu, 13 Nov 2014 20:15:05 -0500 Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.227]:19028 "EHLO cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S934977AbaKNBOT (ORCPT ); Thu, 13 Nov 2014 20:14:19 -0500 Message-Id: <20141114011413.321654244@goodmis.org> User-Agent: quilt/0.61-1 Date: Thu, 13 Nov 2014 20:13:03 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Jiri Kosina , Petr Mladek Subject: [RFC][PATCH 19/23 v4] seq_buf: Create seq_buf_used() to find out how much was written References: <20141114011244.256115061@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=0019-seq_buf-Create-seq_buf_used-to-find-out-how-much-was.patch X-RR-Connecting-IP: 107.14.168.130:25 X-Cloudmark-Score: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Steven Rostedt (Red Hat)" Add a helper function seq_buf_used() that replaces the SEQ_BUF_USED() private macro to let callers have a method to know how much of the seq_buf was written to. Signed-off-by: Steven Rostedt --- include/linux/seq_buf.h | 6 ++++++ kernel/trace/seq_buf.c | 5 +---- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h index 3e550d214187..8fda502ee630 100644 --- a/include/linux/seq_buf.h +++ b/include/linux/seq_buf.h @@ -64,6 +64,12 @@ seq_buf_buffer_left(struct seq_buf *s) return s->size - s->len; } +/* How much buffer was written? */ +static inline unsigned int seq_buf_used(struct seq_buf *s) +{ + return min((s)->len, (s)->size); +} + /** * seq_buf_get_buf - get buffer to write arbitrary data to * @s: the seq_buf handle diff --git a/kernel/trace/seq_buf.c b/kernel/trace/seq_buf.c index 4f35a783b82f..3657af4b5f53 100644 --- a/kernel/trace/seq_buf.c +++ b/kernel/trace/seq_buf.c @@ -16,9 +16,6 @@ #include #include -/* How much buffer is written? */ -#define SEQ_BUF_USED(s) min((s)->len, (s)->size) - /** * seq_buf_print_seq - move the contents of seq_buf into a seq_file * @m: the seq_file descriptor that is the destination @@ -28,7 +25,7 @@ */ int seq_buf_print_seq(struct seq_file *m, struct seq_buf *s) { - unsigned int len = SEQ_BUF_USED(s); + unsigned int len = seq_buf_used(s); return seq_write(m, s->buffer, len); } -- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/