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Revision def1be2d727a1764205479b3e3e3ba16ffbad028 authored by Marcin Slusarz on 29 October 2008, 21:01:01 UTC, committed by Linus Torvalds on 30 October 2008, 18:38:46 UTC 
fbcon: don't inline updatescrollmode
 
Updatescrollmode is marked inline, but it's big and is called only from
non-critical codepaths (fbcon_resize, fbcon_switch, fbcon_modechanged).
Dropping it saves almost 800 bytes of text size.

   text    data     bss     dec     hex filename
  23859     287    8448   32594    7f52 drivers/video/console/fbcon.o.before
  23065     287    8448   31800    7c38 drivers/video/console/fbcon.o.after

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 992b692
Raw File
smp_processor_id.c 
/*
 * lib/smp_processor_id.c
 *
 * DEBUG_PREEMPT variant of smp_processor_id().
 */
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/sched.h>

notrace unsigned int debug_smp_processor_id(void)
{
	unsigned long preempt_count = preempt_count();
	int this_cpu = raw_smp_processor_id();

	if (likely(preempt_count))
		goto out;

	if (irqs_disabled())
		goto out;

	/*
	 * Kernel threads bound to a single CPU can safely use
	 * smp_processor_id():
	 */
	if (cpus_equal(current->cpus_allowed, cpumask_of_cpu(this_cpu)))
		goto out;

	/*
	 * It is valid to assume CPU-locality during early bootup:
	 */
	if (system_state != SYSTEM_RUNNING)
		goto out;

	/*
	 * Avoid recursion:
	 */
	preempt_disable_notrace();

	if (!printk_ratelimit())
		goto out_enable;

	printk(KERN_ERR "BUG: using smp_processor_id() in preemptible [%08x] "
			"code: %s/%d\n",
			preempt_count() - 1, current->comm, current->pid);
	print_symbol("caller is %s\n", (long)__builtin_return_address(0));
	dump_stack();

out_enable:
	preempt_enable_no_resched_notrace();
out:
	return this_cpu;
}

EXPORT_SYMBOL(debug_smp_processor_id);
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