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| author | Steven Rostedt (Red Hat) | 2014-11-06 22:38:28 +0100 |
|---|---|---|
| committer | Steven Rostedt | 2014-11-20 04:01:13 +0100 |
| commit | eeab98154dc0b49afd398afdd71c464a8af5911f (patch) | |
| tree | d460d6f09a6a8160113d81efb6a4abe080c109c3 /kernel/trace/seq_buf.c | |
| parent | tracing: Add a seq_buf_clear() helper and clear len and readpos in init (diff) | |
| download | kernel-qcow2-linux-eeab98154dc0b49afd398afdd71c464a8af5911f.tar.gz kernel-qcow2-linux-eeab98154dc0b49afd398afdd71c464a8af5911f.tar.xz kernel-qcow2-linux-eeab98154dc0b49afd398afdd71c464a8af5911f.zip | |
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/seq_buf.c')
| -rw-r--r-- | kernel/trace/seq_buf.c | 5 |
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); } |