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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-11-06 16:38:28 -0500
committerSteven Rostedt <rostedt@goodmis.org>2014-11-19 22:01:13 -0500
commiteeab98154dc0b49afd398afdd71c464a8af5911f (patch)
treed460d6f09a6a8160113d81efb6a4abe080c109c3 /kernel/trace
parent0736c033a81547b1cdc5120fc8dd60e26a00fd28 (diff)
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seq_buf: Create seq_buf_used() to find out how much was written
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. Link: http://lkml.kernel.org/r/20141114011412.170377300@goodmis.org Link: http://lkml.kernel.org/r/20141114011413.321654244@goodmis.org Reviewed-by: Petr Mladek <pmladek@suse.cz> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/seq_buf.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/trace/seq_buf.c b/kernel/trace/seq_buf.c
index 7dac34d1235b..9ec5305d9da7 100644
--- a/kernel/trace/seq_buf.c
+++ b/kernel/trace/seq_buf.c
@@ -16,9 +16,6 @@
#include <linux/seq_file.h>
#include <linux/seq_buf.h>
-/* How much buffer is written? */
-#define SEQ_BUF_USED(s) min((s)->len, (s)->size - 1)
-
/**
* 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);
}