mm, slub: don't combine pr_err with INFO

It is strange to combine "pr_err" with "INFO", so let's remove the
prefix completely.
This patch is motivated by David's comment[1].

- before the patch
[ 8846.517809] INFO: Slab 0x00000000f42a2c60 objects=33 used=3 fp=0x0000000060d32ca8 flags=0x17ffffc0010200(slab|head)

- after the patch
[ 6343.396602] Slab 0x000000004382e02b objects=33 used=3 fp=0x000000009ae06ffc flags=0x17ffffc0010200(slab|head)

[1] https://lore.kernel.org/linux-mm/b9c0f2b6-e9b0-0c36-ebdd-2bc684c5a762@redhat.com/#t

Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20210319101246.73513-3-laoar.shao@gmail.com

diff --git a/mm/slub.c b/mm/slub.c
index 91eea1930cc13e35372bad7920d6fd44e5ddbe5c..5eb120fdde8ba8edb88352347c261b451557dae0 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -615,7 +615,7 @@ static void print_track(const char *s, struct track *t, unsigned long pr_time)
        if (!t->addr)
                return;
 
-       pr_err("INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
+       pr_err("%s in %pS age=%lu cpu=%u pid=%d\n",
               s, (void *)t->addr, pr_time - t->when, t->cpu, t->pid);
 #ifdef CONFIG_STACKTRACE
        {
@@ -641,7 +641,7 @@ void print_tracking(struct kmem_cache *s, void *object)
 
 static void print_page_info(struct page *page)
 {
-       pr_err("INFO: Slab 0x%p objects=%u used=%u fp=0x%p flags=%#lx(%pGp)\n",
+       pr_err("Slab 0x%p objects=%u used=%u fp=0x%p flags=%#lx(%pGp)\n",
               page, page->objects, page->inuse, page->freelist,
               page->flags, &page->flags);
 
@@ -698,7 +698,7 @@ static void print_trailer(struct kmem_cache *s, struct page *page, u8 *p)
 
        print_page_info(page);
 
-       pr_err("INFO: Object 0x%p @offset=%tu fp=0x%p\n\n",
+       pr_err("Object 0x%p @offset=%tu fp=0x%p\n\n",
               p, p - addr, get_freepointer(s, p));
 
        if (s->flags & SLAB_RED_ZONE)
@@ -791,7 +791,7 @@ static int check_bytes_and_report(struct kmem_cache *s, struct page *page,
                end--;
 
        slab_bug(s, "%s overwritten", what);
-       pr_err("INFO: 0x%p-0x%p @offset=%tu. First byte 0x%x instead of 0x%x\n",
+       pr_err("0x%p-0x%p @offset=%tu. First byte 0x%x instead of 0x%x\n",
                                        fault, end - 1, fault - addr,
                                        fault[0], value);
        print_trailer(s, page, object);
@@ -3869,7 +3869,7 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page,
        for_each_object(p, s, addr, page->objects) {
 
                if (!test_bit(__obj_to_index(s, addr, p), map)) {
-                       pr_err("INFO: Object 0x%p @offset=%tu\n", p, p - addr);
+                       pr_err("Object 0x%p @offset=%tu\n", p, p - addr);
                        print_tracking(s, p);
                }
        }