From: David Hildenbrand <david@redhat.com>
To: Yafang Shao <laoar.shao@gmail.com>,
willy@infradead.org, andriy.shevchenko@linux.intel.com,
linmiaohe@huawei.com, vbabka@suse.cz, cl@linux.com,
penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com,
akpm@linux-foundation.org, pmladek@suse.com, rostedt@goodmis.org,
sergey.senozhatsky@gmail.com, joe@perches.com
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 2/3] mm, slub: don't combine pr_err with INFO
Date: Tue, 9 Feb 2021 11:57:27 +0100 [thread overview]
Message-ID: <a7a7c37b-5bda-25d2-5bcf-cea17b78a03f@redhat.com> (raw)
In-Reply-To: <20210209105613.42747-3-laoar.shao@gmail.com>
On 09.02.21 11:56, Yafang Shao wrote:
> 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>
> Cc: David Hildenbrand <david@redhat.com>
> Cc: Matthew Wilcox <willy@infradead.org>
> ---
> mm/slub.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/mm/slub.c b/mm/slub.c
> index 87ff086e68a4..2514c37ab4e4 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -612,7 +612,7 @@ 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
> {
> @@ -638,7 +638,7 @@ 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);
>
> @@ -695,7 +695,7 @@ 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)
> @@ -788,7 +788,7 @@ 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);
> @@ -3854,7 +3854,7 @@ 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);
> }
> }
>
Reviewed-by: David Hildenbrand <david@redhat.com>
--
Thanks,
David / dhildenb
next prev parent reply other threads:[~2021-02-09 10:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 10:56 [PATCH v4 0/3] mm, vsprintf: dump full information of page flags in pGp Yafang Shao
2021-02-09 10:56 ` [PATCH v4 1/3] mm, slub: use pGp to print page flags Yafang Shao
2021-02-09 10:57 ` David Hildenbrand
2021-02-09 10:56 ` [PATCH v4 2/3] mm, slub: don't combine pr_err with INFO Yafang Shao
2021-02-09 10:57 ` David Hildenbrand [this message]
2021-02-09 10:56 ` [PATCH v4 3/3] vsprintf: dump full information of page flags in pGp Yafang Shao
2021-02-09 11:00 ` David Hildenbrand
2021-02-09 12:00 ` Vlastimil Babka
2021-02-09 13:53 ` Petr Mladek
2021-02-09 14:16 ` Andy Shevchenko
2021-02-09 14:57 ` Petr Mladek
2021-02-09 16:21 ` Yafang Shao
2021-02-10 12:51 ` Petr Mladek
2021-02-10 13:04 ` Joe Perches
2021-02-10 15:39 ` Yafang Shao
2021-02-09 12:41 ` [PATCH v4 0/3] mm, " Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=a7a7c37b-5bda-25d2-5bcf-cea17b78a03f@redhat.com \
--to=david@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=andriy.shevchenko@linux.intel.com \
--cc=cl@linux.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=joe@perches.com \
--cc=laoar.shao@gmail.com \
--cc=linmiaohe@huawei.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=penberg@kernel.org \
--cc=pmladek@suse.com \
--cc=rientjes@google.com \
--cc=rostedt@goodmis.org \
--cc=sergey.senozhatsky@gmail.com \
--cc=vbabka@suse.cz \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).