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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2014-11-08 23:42:11 +0300
committerSteven Rostedt <rostedt@goodmis.org>2014-11-14 05:33:34 +0300
commitd79ac28fde9c245473ba5f337341eb5823c7ebfc (patch)
tree305d1499669f1f9b1f6dc1f7624249bdd124f231 /kernel/trace/trace.c
parentfa6f0cc751d377af3f4f1484bceb47dc10163753 (diff)
downloadlinux-d79ac28fde9c245473ba5f337341eb5823c7ebfc.tar.xz
tracing: Merge consecutive seq_puts calls
Consecutive seq_puts calls with literal strings can be merged to a single call. This reduces the size of the generated code, and can also lead to slight .rodata reduction (because of fewer nul and padding bytes). It should also shave a off a few clock cycles. Link: http://lkml.kernel.org/r/1415479332-25944-3-git-send-email-linux@rasmusvillemoes.dk Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
-rw-r--r--kernel/trace/trace.c64
1 files changed, 32 insertions, 32 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a419db75152c..44d561426700 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2509,14 +2509,14 @@ get_total_entries(struct trace_buffer *buf,
static void print_lat_help_header(struct seq_file *m)
{
- seq_puts(m, "# _------=> CPU# \n");
- seq_puts(m, "# / _-----=> irqs-off \n");
- seq_puts(m, "# | / _----=> need-resched \n");
- seq_puts(m, "# || / _---=> hardirq/softirq \n");
- seq_puts(m, "# ||| / _--=> preempt-depth \n");
- seq_puts(m, "# |||| / delay \n");
- seq_puts(m, "# cmd pid ||||| time | caller \n");
- seq_puts(m, "# \\ / ||||| \\ | / \n");
+ seq_puts(m, "# _------=> CPU# \n"
+ "# / _-----=> irqs-off \n"
+ "# | / _----=> need-resched \n"
+ "# || / _---=> hardirq/softirq \n"
+ "# ||| / _--=> preempt-depth \n"
+ "# |||| / delay \n"
+ "# cmd pid ||||| time | caller \n"
+ "# \\ / ||||| \\ | / \n");
}
static void print_event_info(struct trace_buffer *buf, struct seq_file *m)
@@ -2533,20 +2533,20 @@ static void print_event_info(struct trace_buffer *buf, struct seq_file *m)
static void print_func_help_header(struct trace_buffer *buf, struct seq_file *m)
{
print_event_info(buf, m);
- seq_puts(m, "# TASK-PID CPU# TIMESTAMP FUNCTION\n");
- seq_puts(m, "# | | | | |\n");
+ seq_puts(m, "# TASK-PID CPU# TIMESTAMP FUNCTION\n"
+ "# | | | | |\n");
}
static void print_func_help_header_irq(struct trace_buffer *buf, struct seq_file *m)
{
print_event_info(buf, m);
- seq_puts(m, "# _-----=> irqs-off\n");
- seq_puts(m, "# / _----=> need-resched\n");
- seq_puts(m, "# | / _---=> hardirq/softirq\n");
- seq_puts(m, "# || / _--=> preempt-depth\n");
- seq_puts(m, "# ||| / delay\n");
- seq_puts(m, "# TASK-PID CPU# |||| TIMESTAMP FUNCTION\n");
- seq_puts(m, "# | | | |||| | |\n");
+ seq_puts(m, "# _-----=> irqs-off\n"
+ "# / _----=> need-resched\n"
+ "# | / _---=> hardirq/softirq\n"
+ "# || / _--=> preempt-depth\n"
+ "# ||| / delay\n"
+ "# TASK-PID CPU# |||| TIMESTAMP FUNCTION\n"
+ "# | | | |||| | |\n");
}
void
@@ -2860,34 +2860,34 @@ static void test_ftrace_alive(struct seq_file *m)
{
if (!ftrace_is_dead())
return;
- seq_puts(m, "# WARNING: FUNCTION TRACING IS CORRUPTED\n");
- seq_puts(m, "# MAY BE MISSING FUNCTION EVENTS\n");
+ seq_puts(m, "# WARNING: FUNCTION TRACING IS CORRUPTED\n"
+ "# MAY BE MISSING FUNCTION EVENTS\n");
}
#ifdef CONFIG_TRACER_MAX_TRACE
static void show_snapshot_main_help(struct seq_file *m)
{
- seq_puts(m, "# echo 0 > snapshot : Clears and frees snapshot buffer\n");
- seq_puts(m, "# echo 1 > snapshot : Allocates snapshot buffer, if not already allocated.\n");
- seq_puts(m, "# Takes a snapshot of the main buffer.\n");
- seq_puts(m, "# echo 2 > snapshot : Clears snapshot buffer (but does not allocate or free)\n");
- seq_puts(m, "# (Doesn't have to be '2' works with any number that\n");
- seq_puts(m, "# is not a '0' or '1')\n");
+ seq_puts(m, "# echo 0 > snapshot : Clears and frees snapshot buffer\n"
+ "# echo 1 > snapshot : Allocates snapshot buffer, if not already allocated.\n"
+ "# Takes a snapshot of the main buffer.\n"
+ "# echo 2 > snapshot : Clears snapshot buffer (but does not allocate or free)\n"
+ "# (Doesn't have to be '2' works with any number that\n"
+ "# is not a '0' or '1')\n");
}
static void show_snapshot_percpu_help(struct seq_file *m)
{
seq_puts(m, "# echo 0 > snapshot : Invalid for per_cpu snapshot file.\n");
#ifdef CONFIG_RING_BUFFER_ALLOW_SWAP
- seq_puts(m, "# echo 1 > snapshot : Allocates snapshot buffer, if not already allocated.\n");
- seq_puts(m, "# Takes a snapshot of the main buffer for this cpu.\n");
+ seq_puts(m, "# echo 1 > snapshot : Allocates snapshot buffer, if not already allocated.\n"
+ "# Takes a snapshot of the main buffer for this cpu.\n");
#else
- seq_puts(m, "# echo 1 > snapshot : Not supported with this kernel.\n");
- seq_puts(m, "# Must use main snapshot file to allocate.\n");
+ seq_puts(m, "# echo 1 > snapshot : Not supported with this kernel.\n"
+ "# Must use main snapshot file to allocate.\n");
#endif
- seq_puts(m, "# echo 2 > snapshot : Clears this cpu's snapshot buffer (but does not allocate)\n");
- seq_puts(m, "# (Doesn't have to be '2' works with any number that\n");
- seq_puts(m, "# is not a '0' or '1')\n");
+ seq_puts(m, "# echo 2 > snapshot : Clears this cpu's snapshot buffer (but does not allocate)\n"
+ "# (Doesn't have to be '2' works with any number that\n"
+ "# is not a '0' or '1')\n");
}
static void print_snapshot_help(struct seq_file *m, struct trace_iterator *iter)