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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-10-29 21:17:52 +0300
committerSteven Rostedt <rostedt@goodmis.org>2014-11-20 06:01:13 +0300
commit0736c033a81547b1cdc5120fc8dd60e26a00fd28 (patch)
treeef12060038510c204c5799bf133429c14af19a02 /include/linux/seq_buf.h
parent9a7777935c34b9192e28ef3d232a4b6b5414a657 (diff)
downloadlinux-0736c033a81547b1cdc5120fc8dd60e26a00fd28.tar.xz
tracing: Add a seq_buf_clear() helper and clear len and readpos in init
Add a helper function seq_buf_clear() that resets the len and readpos fields of a seq_buf. Currently it is only used in the seq_buf_init() but will be used later when updating the seq_file code. Link: http://lkml.kernel.org/r/20141104160222.352309995@goodmis.org Tested-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Jiri Kosina <jkosina@suse.cz> Reviewed-by: Petr Mladek <pmladek@suse.cz> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/seq_buf.h')
-rw-r--r--include/linux/seq_buf.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index d14dc9023dde..5d91262433e2 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -22,13 +22,18 @@ struct seq_buf {
loff_t readpos;
};
+static inline void seq_buf_clear(struct seq_buf *s)
+{
+ s->len = 0;
+ s->readpos = 0;
+}
+
static inline void
seq_buf_init(struct seq_buf *s, unsigned char *buf, unsigned int size)
{
s->buffer = buf;
s->size = size;
- s->len = 0;
- s->readpos = 0;
+ seq_buf_clear(s);
}
/*