From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757543AbZBZNwh (ORCPT ); Thu, 26 Feb 2009 08:52:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757172AbZBZNwF (ORCPT ); Thu, 26 Feb 2009 08:52:05 -0500 Received: from mtagate1.de.ibm.com ([195.212.17.161]:46840 "EHLO mtagate1.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757080AbZBZNv7 (ORCPT ); Thu, 26 Feb 2009 08:51:59 -0500 Message-ID: <49A69E67.9090601@linux.vnet.ibm.com> Date: Thu, 26 Feb 2009 14:51:35 +0100 From: Peter Oberparleiter User-Agent: Thunderbird 2.0.0.19 (X11/20081216) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Andrew Morton , Andi Kleen , Huang Ying , Al Viro , Sam Ravnborg , Rusty Russell Subject: [PATCH 2/4] seq_file: add function to write binary data Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Oberparleiter seq_write() can be used to construct seq_files containing arbitrary data. Required by the gcov-profiling interface to synthesize binary profiling data files. Signed-off-by: Peter Oberparleiter --- fs/seq_file.c | 20 ++++++++++++++++++++ include/linux/seq_file.h | 1 + 2 files changed, 21 insertions(+) Index: linux-2.6.29-rc6/fs/seq_file.c =================================================================== --- linux-2.6.29-rc6.orig/fs/seq_file.c +++ linux-2.6.29-rc6/fs/seq_file.c @@ -640,6 +640,26 @@ int seq_puts(struct seq_file *m, const c } EXPORT_SYMBOL(seq_puts); +/** + * seq_write - write arbitrary data to buffer + * @seq: seq_file identifying the buffer to which data should be written + * @data: data address + * @len: number of bytes + * + * Return 0 on success, non-zero otherwise. + */ +int seq_write(struct seq_file *seq, const void *data, size_t len) +{ + if (seq->count + len < seq->size) { + memcpy(seq->buf + seq->count, data, len); + seq->count += len; + return 0; + } + seq->count = seq->size; + return -1; +} +EXPORT_SYMBOL(seq_write); + struct list_head *seq_list_start(struct list_head *head, loff_t pos) { struct list_head *lh; Index: linux-2.6.29-rc6/include/linux/seq_file.h =================================================================== --- linux-2.6.29-rc6.orig/include/linux/seq_file.h +++ linux-2.6.29-rc6/include/linux/seq_file.h @@ -43,6 +43,7 @@ int seq_release(struct inode *, struct f int seq_escape(struct seq_file *, const char *, const char *); int seq_putc(struct seq_file *m, char c); int seq_puts(struct seq_file *m, const char *s); +int seq_write(struct seq_file *seq, const void *data, size_t len); int seq_printf(struct seq_file *, const char *, ...) __attribute__ ((format (printf,2,3)));