From: Chen Li <chenli@uniontech.com>
To: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH] nommu: remove __GFP_HIGHMEM in vmalloc/vzalloc
Date: Mon, 03 May 2021 20:44:51 +0800 [thread overview]
Message-ID: <875z00rnp8.wl-chenli@uniontech.com> (raw)
From mm/nommu.c:
void *__vmalloc(unsigned long size, gfp_t gfp_mask)
{
/*
* You can't specify __GFP_HIGHMEM with kmalloc() since kmalloc()
* returns only a logical address.
*/
return kmalloc(size, (gfp_mask | __GFP_COMP) & ~__GFP_HIGHMEM);
}
nommu's __vmalloc just uses kmalloc internally and elimitates __GFP_HIGHMEM,
so it makes no sense to add __GFP_HIGHMEM for nommu's vmalloc/vzalloc.
Signed-off-by: Chen Li <chenli@uniontech.com>
---
mm/nommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/nommu.c b/mm/nommu.c
index 5c9ab799c0e6..339a2f2eb1aa 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -233,7 +233,7 @@ long vwrite(char *buf, char *addr, unsigned long count)
*/
void *vmalloc(unsigned long size)
{
- return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM);
+ return __vmalloc(size, GFP_KERNEL);
}
EXPORT_SYMBOL(vmalloc);
@@ -251,7 +251,7 @@ EXPORT_SYMBOL(vmalloc);
*/
void *vzalloc(unsigned long size)
{
- return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
+ return __vmalloc(size, GFP_KERNEL | __GFP_ZERO);
}
EXPORT_SYMBOL(vzalloc);
--
2.31.1
next reply other threads:[~2021-05-03 12:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-03 12:44 Chen Li [this message]
2021-05-03 13:05 ` [PATCH] nommu: remove __GFP_HIGHMEM in vmalloc/vzalloc Matthew Wilcox
2021-05-05 11:14 ` David Hildenbrand
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=875z00rnp8.wl-chenli@uniontech.com \
--to=chenli@uniontech.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.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).