From: Dave Hansen <dave@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, Gleb Natapov <gleb@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, Marcelo Tosatti <mtosatti@redhat.com>,
Rik van Riel <riel@redhat.com>,
Dave Hansen <dave@linux.vnet.ibm.com>
Subject: [PATCH 3/5] use new pagetable helpers in try_preserve_large_page()
Date: Mon, 21 Jan 2013 09:52:47 -0800 [thread overview]
Message-ID: <20130121175247.76641034@kernel.stglabs.ibm.com> (raw)
In-Reply-To: <20130121175244.E5839E06@kernel.stglabs.ibm.com>
try_preserve_large_page() can be slightly simplified by using
the new page_level_*() helpers.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
---
linux-2.6.git-dave/arch/x86/mm/pageattr.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff -puN arch/x86/mm/pageattr.c~use-new-pagetable-helpers arch/x86/mm/pageattr.c
--- linux-2.6.git/arch/x86/mm/pageattr.c~use-new-pagetable-helpers 2013-01-17 10:22:26.282431407 -0800
+++ linux-2.6.git-dave/arch/x86/mm/pageattr.c 2013-01-17 10:22:26.286431442 -0800
@@ -412,15 +412,12 @@ try_preserve_large_page(pte_t *kpte, uns
switch (level) {
case PG_LEVEL_2M:
- psize = PMD_PAGE_SIZE;
- pmask = PMD_PAGE_MASK;
- break;
#ifdef CONFIG_X86_64
case PG_LEVEL_1G:
- psize = PUD_PAGE_SIZE;
- pmask = PUD_PAGE_MASK;
- break;
#endif
+ psize = page_level_size(level);
+ pmask = page_level_mask(level);
+ break;
default:
do_split = -EINVAL;
goto out_unlock;
_
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2013-01-21 17:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-21 17:52 [PATCH 0/5] fix illegal use of __pa() in KVM code Dave Hansen
2013-01-21 17:52 ` [PATCH 1/5] make DEBUG_VIRTUAL work earlier in boot Dave Hansen
2013-01-21 17:52 ` [PATCH 2/5] pagetable level size/shift/mask helpers Dave Hansen
2013-01-21 17:52 ` Dave Hansen [this message]
2013-01-21 17:52 ` [PATCH 4/5] create slow_virt_to_phys() Dave Hansen
2013-01-21 18:08 ` H. Peter Anvin
2013-01-21 18:18 ` Dave Hansen
2013-01-21 17:52 ` [PATCH 5/5] fix kvm's use of __pa() on percpu areas Dave Hansen
2013-01-21 18:38 ` H. Peter Anvin
2013-01-21 18:59 ` Dave Hansen
2013-01-21 19:22 ` H. Peter Anvin
2013-01-21 19:02 ` Gleb Natapov
-- strict thread matches above, loose matches on Subject: below --
2013-01-22 21:24 [PATCH 0/5] [v3] fix illegal use of __pa() in KVM code Dave Hansen
2013-01-22 21:24 ` [PATCH 3/5] use new pagetable helpers in try_preserve_large_page() Dave Hansen
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=20130121175247.76641034@kernel.stglabs.ibm.com \
--to=dave@linux.vnet.ibm.com \
--cc=gleb@redhat.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mtosatti@redhat.com \
--cc=riel@redhat.com \
--cc=x86@kernel.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).