From: Tian Tao <tiantao6@hisilicon.com>
To: <akpm@linux-foundation.org>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>
Cc: <linuxarm@huawei.com>
Subject: [PATCH v3] vmalloc: Add the right hint when vmalloc failed
Date: Fri, 10 Jul 2020 20:17:52 +0800 [thread overview]
Message-ID: <1594383472-52983-1-git-send-email-tiantao6@hisilicon.com> (raw)
In fact "vmalloc=<size>" cmdline option is not available on many
platforms.When the user encounters this error, add the correct
hint to prevent misleading.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
v2:
Add appropriate hints and let users decide if they can increase
the size of the vmalloc by vmalloc=<size> depending on their platform
v3:
change the patch name and commit messages.
---
mm/vmalloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 89e83d3..c6ae7e6 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1238,8 +1238,8 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
}
if (!(gfp_mask & __GFP_NOWARN) && printk_ratelimit())
- pr_warn("vmap allocation for size %lu failed: use vmalloc=<size> to increase size\n",
- size);
+ pr_warn("vmap allocation for size %lu failed: use vmalloc=<size> to increase size,
+ if your ARCH supports it\n", size);
kmem_cache_free(vmap_area_cachep, va);
return ERR_PTR(-EBUSY);
--
2.7.4
next reply other threads:[~2020-07-10 12:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 12:17 Tian Tao [this message]
2020-07-10 12:43 ` [PATCH v3] vmalloc: Add the right hint when vmalloc failed Matthew Wilcox
2020-07-10 13:49 ` Uladzislau Rezki
2020-07-10 13:53 ` Matthew Wilcox
2020-07-10 14:04 ` Uladzislau Rezki
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=1594383472-52983-1-git-send-email-tiantao6@hisilicon.com \
--to=tiantao6@hisilicon.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linuxarm@huawei.com \
/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).