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Subject[PATCH v3 6/6] powerpc/nohash: Remove DEBUG_HARDER
Date
DEBUG_HARDER is not user selectable.

Remove it together with related messages.

Also remove two pr_devel() messages that should
likely have been pr_hard().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/mm/nohash/mmu_context.c | 32 ----------------------------
1 file changed, 32 deletions(-)

diff --git a/arch/powerpc/mm/nohash/mmu_context.c b/arch/powerpc/mm/nohash/mmu_context.c
index d9f590b9e636..920b5b8c770d 100644
--- a/arch/powerpc/mm/nohash/mmu_context.c
+++ b/arch/powerpc/mm/nohash/mmu_context.c
@@ -21,19 +21,6 @@
* also clear mm->cpu_vm_mask bits when processes are migrated
*/

-//#define DEBUG_HARDER
-
-/* We don't use DEBUG because it tends to be compiled in always nowadays
- * and this would generate way too much output
- */
-#ifdef DEBUG_HARDER
-#define pr_hard(args...) printk(KERN_DEBUG args)
-#define pr_hardcont(args...) printk(KERN_CONT args)
-#else
-#define pr_hard(args...) do { } while(0)
-#define pr_hardcont(args...) do { } while(0)
-#endif
-
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/init.h>
@@ -127,7 +114,6 @@ static unsigned int steal_context_smp(unsigned int id)
id = FIRST_CONTEXT;
continue;
}
- pr_hardcont(" | steal %d from 0x%p", id, mm);

/* Mark this mm has having no context anymore */
mm->context.id = MMU_NO_CONTEXT;
@@ -169,8 +155,6 @@ static unsigned int steal_all_contexts(void)
/* Pick up the victim mm */
mm = context_mm[id];

- pr_hardcont(" | steal %d from 0x%p", id, mm);
-
/* Mark this mm as having no context anymore */
mm->context.id = MMU_NO_CONTEXT;
if (id != FIRST_CONTEXT) {
@@ -202,8 +186,6 @@ static unsigned int steal_context_up(unsigned int id)
/* Pick up the victim mm */
mm = context_mm[id];

- pr_hardcont(" | steal %d from 0x%p", id, mm);
-
/* Flush the TLB for that context */
local_flush_tlb_mm(mm);

@@ -251,14 +233,10 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next,
/* No lockless fast path .. yet */
raw_spin_lock(&context_lock);

- pr_hard("[%d] activating context for mm @%p, active=%d, id=%d",
- cpu, next, next->context.active, next->context.id);
-
if (IS_ENABLED(CONFIG_SMP)) {
/* Mark us active and the previous one not anymore */
next->context.active++;
if (prev) {
- pr_hardcont(" (old=0x%p a=%d)", prev, prev->context.active);
WARN_ON(prev->context.active < 1);
prev->context.active--;
}
@@ -303,7 +281,6 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next,
next_context = id + 1;
context_mm[id] = next;
next->context.id = id;
- pr_hardcont(" | new id=%d,nrf=%d", id, nr_free_contexts);

ctxt_ok:

@@ -311,10 +288,6 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next,
* local TLB for it and unmark it before we use it
*/
if (IS_ENABLED(CONFIG_SMP) && test_bit(id, stale_map[cpu])) {
- pr_hardcont(" | stale flush %d [%d..%d]",
- id, cpu_first_thread_sibling(cpu),
- cpu_last_thread_sibling(cpu));
-
local_flush_tlb_mm(next);

/* XXX This clear should ultimately be part of local_flush_tlb_mm */
@@ -326,7 +299,6 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next,
}

/* Flick the MMU and release lock */
- pr_hardcont(" -> %d\n", id);
if (IS_ENABLED(CONFIG_BDI_SWITCH))
abatron_pteptrs[1] = next->pgd;
set_context(id, next->pgd);
@@ -338,8 +310,6 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next,
*/
int init_new_context(struct task_struct *t, struct mm_struct *mm)
{
- pr_hard("initing context for mm @%p\n", mm);
-
/*
* We have MMU_NO_CONTEXT set to be ~0. Hence check
* explicitly against context.id == 0. This ensures that we properly
@@ -387,7 +357,6 @@ static int mmu_ctx_cpu_prepare(unsigned int cpu)
if (cpu == boot_cpuid)
return 0;

- pr_devel("MMU: Allocating stale context map for CPU %d\n", cpu);
stale_map[cpu] = kzalloc(CTX_MAP_SIZE, GFP_KERNEL);
return 0;
}
@@ -398,7 +367,6 @@ static int mmu_ctx_cpu_dead(unsigned int cpu)
if (cpu == boot_cpuid)
return 0;

- pr_devel("MMU: Freeing stale context map for CPU %d\n", cpu);
kfree(stale_map[cpu]);
stale_map[cpu] = NULL;

--
2.25.0
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