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Commit a1ac38ab authored by Michael Ellerman's avatar Michael Ellerman Committed by Benjamin Herrenschmidt
Browse files

powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c 



pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text	   data	    bss	    dec	    hex	filename
   1508	     48	     28	   1584	    630	powerpc/mm/mmu_context_nohash.o

size after:
   text	   data	    bss	    dec	    hex	filename
   1088	      0	     28	   1116	    45c	powerpc/mm/mmu_context_nohash.o

Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent b69e9e93

arch/powerpc/mm/mmu_context_nohash.c

+8 −8
Original line number Original line Diff line number Diff line
@@ -89,7 +89,7 @@ static unsigned int steal_context_smp(unsigned int id) 
				id = first_context;

				id = first_context;

			continue;

			continue;

		}

		}

		pr_debug("[%d] steal context %d from mm @%p\n",

		pr_devel("[%d] steal context %d from mm @%p\n",

			 smp_processor_id(), id, mm);

			 smp_processor_id(), id, mm);





		/* Mark this mm has having no context anymore */

		/* Mark this mm has having no context anymore */
@@ -126,7 +126,7 @@ static unsigned int steal_context_up(unsigned int id) 
	/* Pick up the victim mm */

	/* Pick up the victim mm */

	mm = context_mm[id];

	mm = context_mm[id];





	pr_debug("[%d] steal context %d from mm @%p\n", cpu, id, mm);

	pr_devel("[%d] steal context %d from mm @%p\n", cpu, id, mm);





	/* Flush the TLB for that context */

	/* Flush the TLB for that context */

	local_flush_tlb_mm(mm);

	local_flush_tlb_mm(mm);
@@ -180,7 +180,7 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) 
	spin_lock(&context_lock);

	spin_lock(&context_lock);





#ifndef DEBUG_STEAL_ONLY

#ifndef DEBUG_STEAL_ONLY

	pr_debug("[%d] activating context for mm @%p, active=%d, id=%d\n",

	pr_devel("[%d] activating context for mm @%p, active=%d, id=%d\n",

		 cpu, next, next->context.active, next->context.id);

		 cpu, next, next->context.active, next->context.id);

#endif

#endif
@@ -189,7 +189,7 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) 
	next->context.active++;

	next->context.active++;

	if (prev) {

	if (prev) {

#ifndef DEBUG_STEAL_ONLY

#ifndef DEBUG_STEAL_ONLY

		pr_debug(" old context %p active was: %d\n",

		pr_devel(" old context %p active was: %d\n",

			 prev, prev->context.active);

			 prev, prev->context.active);

#endif

#endif

		WARN_ON(prev->context.active < 1);

		WARN_ON(prev->context.active < 1);
@@ -236,7 +236,7 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) 
	next->context.id = id;

	next->context.id = id;





#ifndef DEBUG_STEAL_ONLY

#ifndef DEBUG_STEAL_ONLY

	pr_debug("[%d] picked up new id %d, nrf is now %d\n",

	pr_devel("[%d] picked up new id %d, nrf is now %d\n",

		 cpu, id, nr_free_contexts);

		 cpu, id, nr_free_contexts);

#endif

#endif
@@ -247,7 +247,7 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) 
	 * local TLB for it and unmark it before we use it

	 * local TLB for it and unmark it before we use it

	 */

	 */

	if (test_bit(id, stale_map[cpu])) {

	if (test_bit(id, stale_map[cpu])) {

		pr_debug("[%d] flushing stale context %d for mm @%p !\n",

		pr_devel("[%d] flushing stale context %d for mm @%p !\n",

			 cpu, id, next);

			 cpu, id, next);

		local_flush_tlb_mm(next);

		local_flush_tlb_mm(next);
@@ -314,13 +314,13 @@ static int __cpuinit mmu_context_cpu_notify(struct notifier_block *self, 
	switch (action) {

	switch (action) {

	case CPU_ONLINE:

	case CPU_ONLINE:

	case CPU_ONLINE_FROZEN:

	case CPU_ONLINE_FROZEN:

		pr_debug("MMU: Allocating stale context map for CPU %d\n", cpu);

		pr_devel("MMU: Allocating stale context map for CPU %d\n", cpu);

		stale_map[cpu] = kzalloc(CTX_MAP_SIZE, GFP_KERNEL);

		stale_map[cpu] = kzalloc(CTX_MAP_SIZE, GFP_KERNEL);

		break;

		break;

#ifdef CONFIG_HOTPLUG_CPU

#ifdef CONFIG_HOTPLUG_CPU

	case CPU_DEAD:

	case CPU_DEAD:

	case CPU_DEAD_FROZEN:

	case CPU_DEAD_FROZEN:

		pr_debug("MMU: Freeing stale context map for CPU %d\n", cpu);

		pr_devel("MMU: Freeing stale context map for CPU %d\n", cpu);

		kfree(stale_map[cpu]);

		kfree(stale_map[cpu]);

		stale_map[cpu] = NULL;

		stale_map[cpu] = NULL;

		break;

		break;