[PATCH v2] mm: convert some level-less printks to pr_*

[Mitchel Humpherys <mitchelh@codeaurora.org>]

printk is meant to be used with an associated log level. There are some
instances of printk scattered around the mm code where the log level is
missing. Add a log level and adhere to suggestions by
scripts/checkpatch.pl by moving to the pr_* macros.

Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
---
 mm/bounce.c    |  7 +++++--
 mm/mempolicy.c |  5 ++++-
 mm/mmap.c      | 21 ++++++++++++---------
 mm/nommu.c     |  5 ++++-
 mm/slub.c      |  9 ++++++---
 mm/vmscan.c    |  5 ++++-
 6 files changed, 35 insertions(+), 17 deletions(-)

diff --git a/mm/bounce.c b/mm/bounce.c
index 523918b8c6..d35850895b 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -3,6 +3,8 @@
  * - Split from highmem.c
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/mm.h>
 #include <linux/export.h>
 #include <linux/swap.h>
@@ -15,6 +17,7 @@
 #include <linux/hash.h>
 #include <linux/highmem.h>
 #include <linux/bootmem.h>
+#include <linux/printk.h>
 #include <asm/tlbflush.h>
 
 #include <trace/events/block.h>
@@ -34,7 +37,7 @@ static __init int init_emergency_pool(void)
 
 	page_pool = mempool_create_page_pool(POOL_SIZE, 0);
 	BUG_ON(!page_pool);
-	printk("bounce pool size: %d pages\n", POOL_SIZE);
+	pr_info("bounce pool size: %d pages\n", POOL_SIZE);
 
 	return 0;
 }
@@ -86,7 +89,7 @@ int init_emergency_isa_pool(void)
 				       mempool_free_pages, (void *) 0);
 	BUG_ON(!isa_page_pool);
 
-	printk("isa bounce pool size: %d pages\n", ISA_POOL_SIZE);
+	pr_info("isa bounce pool size: %d pages\n", ISA_POOL_SIZE);
 	return 0;
 }
 
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index ae3c8f3595..aec6220485 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -65,6 +65,8 @@
    kernel is not always grateful with that.
 */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/mempolicy.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
@@ -91,6 +93,7 @@
 #include <linux/ctype.h>
 #include <linux/mm_inline.h>
 #include <linux/mmu_notifier.h>
+#include <linux/printk.h>
 
 #include <asm/tlbflush.h>
 #include <asm/uaccess.h>
@@ -2751,7 +2754,7 @@ void __init numa_policy_init(void)
 		node_set(prefer, interleave_nodes);
 
 	if (do_set_mempolicy(MPOL_INTERLEAVE, 0, &interleave_nodes))
-		printk("numa_policy_init: interleaving failed\n");
+		pr_err("%s: interleaving failed\n", __func__);
 
 	check_numabalancing_enable();
 }
diff --git a/mm/mmap.c b/mm/mmap.c
index 20ff0c3327..c7023516da 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -6,6 +6,8 @@
  * Address space accounting code	<alan@lxorguk.ukuu.org.uk>
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/backing-dev.h>
@@ -36,6 +38,7 @@
 #include <linux/sched/sysctl.h>
 #include <linux/notifier.h>
 #include <linux/memory.h>
+#include <linux/printk.h>
 
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
@@ -360,20 +363,20 @@ static int browse_rb(struct rb_root *root)
 		struct vm_area_struct *vma;
 		vma = rb_entry(nd, struct vm_area_struct, vm_rb);
 		if (vma->vm_start < prev) {
-			printk("vm_start %lx prev %lx\n", vma->vm_start, prev);
+			pr_info("vm_start %lx prev %lx\n", vma->vm_start, prev);
 			bug = 1;
 		}
 		if (vma->vm_start < pend) {
-			printk("vm_start %lx pend %lx\n", vma->vm_start, pend);
+			pr_info("vm_start %lx pend %lx\n", vma->vm_start, pend);
 			bug = 1;
 		}
 		if (vma->vm_start > vma->vm_end) {
-			printk("vm_end %lx < vm_start %lx\n",
+			pr_info("vm_end %lx < vm_start %lx\n",
 				vma->vm_end, vma->vm_start);
 			bug = 1;
 		}
 		if (vma->rb_subtree_gap != vma_compute_subtree_gap(vma)) {
-			printk("free gap %lx, correct %lx\n",
+			pr_info("free gap %lx, correct %lx\n",
 			       vma->rb_subtree_gap,
 			       vma_compute_subtree_gap(vma));
 			bug = 1;
@@ -387,7 +390,7 @@ static int browse_rb(struct rb_root *root)
 	for (nd = pn; nd; nd = rb_prev(nd))
 		j++;
 	if (i != j) {
-		printk("backwards %d, forwards %d\n", j, i);
+		pr_info("backwards %d, forwards %d\n", j, i);
 		bug = 1;
 	}
 	return bug ? -1 : i;
@@ -422,17 +425,17 @@ void validate_mm(struct mm_struct *mm)
 		i++;
 	}
 	if (i != mm->map_count) {
-		printk("map_count %d vm_next %d\n", mm->map_count, i);
+		pr_info("map_count %d vm_next %d\n", mm->map_count, i);
 		bug = 1;
 	}
 	if (highest_address != mm->highest_vm_end) {
-		printk("mm->highest_vm_end %lx, found %lx\n",
+		pr_info("mm->highest_vm_end %lx, found %lx\n",
 		       mm->highest_vm_end, highest_address);
 		bug = 1;
 	}
 	i = browse_rb(&mm->mm_rb);
 	if (i != mm->map_count) {
-		printk("map_count %d rb %d\n", mm->map_count, i);
+		pr_info("map_count %d rb %d\n", mm->map_count, i);
 		bug = 1;
 	}
 	BUG_ON(bug);
@@ -3237,7 +3240,7 @@ static struct notifier_block reserve_mem_nb = {
 static int __meminit init_reserve_notifier(void)
 {
 	if (register_hotmemory_notifier(&reserve_mem_nb))
-		printk("Failed registering memory add/remove notifier for admin reserve");
+		pr_err("Failed registering memory add/remove notifier for admin reserve\n");
 
 	return 0;
 }
diff --git a/mm/nommu.c b/mm/nommu.c
index 8740213b16..1ff42f87dd 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -13,6 +13,8 @@
  *  Copyright (c) 2007-2010 Paul Mundt <lethal@linux-sh.org>
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
@@ -30,6 +32,7 @@
 #include <linux/syscalls.h>
 #include <linux/audit.h>
 #include <linux/sched/sysctl.h>
+#include <linux/printk.h>
 
 #include <asm/uaccess.h>
 #include <asm/tlb.h>
@@ -1241,7 +1244,7 @@ error_free:
 	return ret;
 
 enomem:
-	printk("Allocation of length %lu from process %d (%s) failed\n",
+	pr_err("Allocation of length %lu from process %d (%s) failed\n",
 	       len, current->pid, current->comm);
 	show_free_areas(0);
 	return -ENOMEM;
diff --git a/mm/slub.c b/mm/slub.c
index 25f14ad8f8..9f109e6756 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -9,6 +9,8 @@
  * (C) 2011 Linux Foundation, Christoph Lameter
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/mm.h>
 #include <linux/swap.h> /* struct reclaim_state */
 #include <linux/module.h>
@@ -33,6 +35,7 @@
 #include <linux/stacktrace.h>
 #include <linux/prefetch.h>
 #include <linux/memcontrol.h>
+#include <linux/printk.h>
 
 #include <trace/events/kmem.h>
 
@@ -1774,15 +1777,15 @@ static inline void note_cmpxchg_failure(const char *n,
 
 #ifdef CONFIG_PREEMPT
 	if (tid_to_cpu(tid) != tid_to_cpu(actual_tid))
-		printk("due to cpu change %d -> %d\n",
+		pr_cont("due to cpu change %d -> %d\n",
 			tid_to_cpu(tid), tid_to_cpu(actual_tid));
 	else
 #endif
 	if (tid_to_event(tid) != tid_to_event(actual_tid))
-		printk("due to cpu running other code. Event %ld->%ld\n",
+		pr_cont("due to cpu running other code. Event %ld->%ld\n",
 			tid_to_event(tid), tid_to_event(actual_tid));
 	else
-		printk("for unknown reason: actual=%lx was=%lx target=%lx\n",
+		pr_cont("for unknown reason: actual=%lx was=%lx target=%lx\n",
 			actual_tid, tid, next_tid(tid));
 #endif
 	stat(s, CMPXCHG_DOUBLE_CPU_FAIL);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a9c74b4096..394dd2b644 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -11,6 +11,8 @@
  *  Multiqueue VM started 5.8.00, Rik van Riel.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/gfp.h>
@@ -43,6 +45,7 @@
 #include <linux/sysctl.h>
 #include <linux/oom.h>
 #include <linux/prefetch.h>
+#include <linux/printk.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -477,7 +480,7 @@ static pageout_t pageout(struct page *page, struct address_space *mapping,
 		if (page_has_private(page)) {
 			if (try_to_free_buffers(page)) {
 				ClearPageDirty(page);
-				printk("%s: orphaned page\n", __func__);
+				pr_info("%s: orphaned page\n", __func__);
 				return PAGE_CLEAN;
 			}
 		}
-- 
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