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tracing: Replace seq_printf by simpler equivalents

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Using seq_printf to print a simple string or a single character is a
lot more expensive than it needs to be, since seq_puts and seq_putc
exist.

These patches do

  seq_printf(m, s) -> seq_puts(m, s)
  seq_printf(m, "%s", s) -> seq_puts(m, s)
  seq_printf(m, "%c", c) -> seq_putc(m, c)

Subsequent patches will simplify further.

Link: http://lkml.kernel.org/r/1415479332-25944-2-git-send-email-linux@rasmusvillemoes.dk

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Rasmus Villemoes 2014-11-08 21:42:10 +01:00 • committed by Steven Rostedt
parent 8520dedbbf
commit fa6f0cc751
9 changed files with 71 additions and 71 deletions
Download patch file Download diff file Expand all files Collapse all files

28
kernel/trace/trace_functions_graph.c
View file

@ -1407,32 +1407,32 @@ static void __print_graph_headers_flags(struct seq_file *s, u32 flags)
print_lat_header(s, flags);
/* 1st line */
seq_printf(s, "#");
seq_puts(s, "#");
if (flags & TRACE_GRAPH_PRINT_ABS_TIME)
seq_printf(s, " TIME ");
seq_puts(s, " TIME ");
if (flags & TRACE_GRAPH_PRINT_CPU)
seq_printf(s, " CPU");
seq_puts(s, " CPU");
if (flags & TRACE_GRAPH_PRINT_PROC)
seq_printf(s, " TASK/PID ");
seq_puts(s, " TASK/PID ");
if (lat)
seq_printf(s, "||||");
seq_puts(s, "||||");
if (flags & TRACE_GRAPH_PRINT_DURATION)
seq_printf(s, " DURATION ");
seq_printf(s, " FUNCTION CALLS\n");
seq_puts(s, " DURATION ");
seq_puts(s, " FUNCTION CALLS\n");
/* 2nd line */
seq_printf(s, "#");
seq_puts(s, "#");
if (flags & TRACE_GRAPH_PRINT_ABS_TIME)
seq_printf(s, " | ");
seq_puts(s, " | ");
if (flags & TRACE_GRAPH_PRINT_CPU)
seq_printf(s, " | ");
seq_puts(s, " | ");
if (flags & TRACE_GRAPH_PRINT_PROC)
seq_printf(s, " | | ");
seq_puts(s, " | | ");
if (lat)
seq_printf(s, "||||");
seq_puts(s, "||||");
if (flags & TRACE_GRAPH_PRINT_DURATION)
seq_printf(s, " | | ");
seq_printf(s, " | | | |\n");
seq_puts(s, " | | ");
seq_puts(s, " | | | |\n");
}
static void print_graph_headers(struct seq_file *s)