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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-10-29 17:30:50 -0400
committerSteven Rostedt <rostedt@goodmis.org>2014-11-19 22:01:18 -0500
commit01cb06a4c229908d239149017049fdd1fca1dd51 (patch)
tree16af818800dc163c155c20dbacb782257d604534 /kernel/trace
parent8cd709ae7658a7fd7f6630699e3229188c2591e4 (diff)
tracing: Add seq_buf_get_buf() and seq_buf_commit() helper functions
Add two helper functions; seq_buf_get_buf() and seq_buf_commit() that are used by seq_buf_path(). This makes the code similar to the seq_file: seq_path() function, and will help to be able to consolidate the functions between seq_file and trace_seq. Link: http://lkml.kernel.org/r/20141104160222.644881406@goodmis.org Link: http://lkml.kernel.org/r/20141114011412.977571447@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 'kernel/trace')
-rw-r--r--kernel/trace/seq_buf.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/trace/seq_buf.c b/kernel/trace/seq_buf.c
index c53f1d5088e8..086f594ac890 100644
--- a/kernel/trace/seq_buf.c
+++ b/kernel/trace/seq_buf.c
@@ -293,8 +293,8 @@ int seq_buf_putmem_hex(struct seq_buf *s, const void *mem,
*/
int seq_buf_path(struct seq_buf *s, const struct path *path, const char *esc)
{
- char *buf = s->buffer + s->len;
- size_t size = seq_buf_buffer_left(s);
+ char *buf;
+ size_t size = seq_buf_get_buf(s, &buf);
int res = -1;
WARN_ON(s->size == 0);
@@ -307,8 +307,7 @@ int seq_buf_path(struct seq_buf *s, const struct path *path, const char *esc)
res = end - buf;
}
}
- if (res > 0)
- s->len += res;
+ seq_buf_commit(s, res);
return res;
}