The patch titled
seq_file: add function to write binary data
has been added to the -mm tree. Its filename is
seq_file-add-function-to-write-binary-data.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: seq_file: add function to write binary data
From: Peter Oberparleiter <oberpar@xxxxxxxxxxxxxxxxxx>
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 <oberpar@xxxxxxxxxxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: Huang Ying <ying.huang@xxxxxxxxx>
Cc: Li Wei <W.Li@xxxxxxx>
Cc: Michael Ellerman <michaele@xxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Heiko Carstens <heicars2@xxxxxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <mschwid2@xxxxxxxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: WANG Cong <xiyou.wangcong@xxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/seq_file.c | 20 ++++++++++++++++++++
include/linux/seq_file.h | 1 +
2 files changed, 21 insertions(+)
diff -puN fs/seq_file.c~seq_file-add-function-to-write-binary-data fs/seq_file.c
--- a/fs/seq_file.c~seq_file-add-function-to-write-binary-data
+++ a/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;
diff -puN include/linux/seq_file.h~seq_file-add-function-to-write-binary-data include/linux/seq_file.h
--- a/include/linux/seq_file.h~seq_file-add-function-to-write-binary-data
+++ a/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)));
_
Patches currently in -mm which might be from oberpar@xxxxxxxxxxxxxxxxxx are
kernel-constructor-support.patch
seq_file-add-function-to-write-binary-data.patch
gcov-add-gcov-profiling-infrastructure.patch
gcov-enable-gcov_profile_all-for-x86_64.patch
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