diff options
author | Kent Overstreet <kent.overstreet@gmail.com> | 2022-05-20 14:26:53 -0400 |
---|---|---|
committer | Kent Overstreet <kent.overstreet@gmail.com> | 2022-08-07 21:08:02 -0400 |
commit | 39a0d5c32b0ee85af1ecefedaec659e6184ea56a (patch) | |
tree | 21658f1f995009b5898741e6e62b9ae48dbfb19d /kernel/trace/trace_functions_graph.c | |
parent | 4c144633669377b56b772fb39f0e0f412b02b906 (diff) |
tracing: Convert to printbuf
This converts the seq_bufs in dynevent_cmd and trace_seq to printbufs.
- read_pos in seq_buf doesn't exist in printbuf, so is added to
trace_seq
- seq_buf_to_user doesn't have a printbuf equivalent, so is inlined
into trace_seq_to_user
- seq_buf_putmem_hex currently swabs bytes on little endian, hardcoded
to 8 byte units. This patch switches it to prt_hex_bytes(), which
does _not_ swab.
Otherwise this is largely a direct conversion, with a few slight
refactorings and cleanups.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
-rw-r--r-- | kernel/trace/trace_functions_graph.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c index 203204cadf92..9f270fdde99b 100644 --- a/kernel/trace/trace_functions_graph.c +++ b/kernel/trace/trace_functions_graph.c @@ -1022,9 +1022,9 @@ print_graph_comment(struct trace_seq *s, struct trace_entry *ent, goto out; /* Strip ending newline */ - if (s->buffer[s->seq.len - 1] == '\n') { - s->buffer[s->seq.len - 1] = '\0'; - s->seq.len--; + if (s->buffer[s->seq.pos - 1] == '\n') { + s->buffer[s->seq.pos - 1] = '\0'; + s->seq.pos--; } trace_seq_puts(s, " */\n"); |