From: Andrea Arcangeli <aarcange@redhat.com>
To: linux-mm@kvack.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
Adam Litke <agl@us.ibm.com>, Avi Kivity <avi@redhat.com>,
Izik Eidus <ieidus@redhat.com>,
Hugh Dickins <hugh.dickins@tiscali.co.uk>,
Nick Piggin <npiggin@suse.de>, Rik van Riel <riel@redhat.com>,
Mel Gorman <mel@csn.ul.ie>, Andi Kleen <andi@firstfloor.org>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Ingo Molnar <mingo@elte.hu>, Mike Travis <travis@sgi.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Christoph Lameter <cl@linux-foundation.org>,
Chris Wright <chrisw@sous-sol.org>,
Andrew Morton <akpm@linux-foundation.org>,
bpicco@redhat.com, Christoph Hellwig <chellwig@redhat.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Subject: [PATCH 08 of 31] add pmd paravirt ops
Date: Tue, 26 Jan 2010 14:52:03 +0100 [thread overview]
Message-ID: <89fa0f684abe1cec34c3.1264513923@v2.random> (raw)
In-Reply-To: <patchbomb.1264513915@v2.random>
From: Andrea Arcangeli <aarcange@redhat.com>
Paravirt ops pmd_update/pmd_update_defer/pmd_set_at. Not all might be necessary
(vmware needs pmd_update, Xen needs set_pmd_at, nobody needs pmd_update_defer),
but this is to keep full simmetry with pte paravirt ops, which looks cleaner
and simpler from a common code POV.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -449,6 +449,11 @@ static inline void pte_update(struct mm_
{
PVOP_VCALL3(pv_mmu_ops.pte_update, mm, addr, ptep);
}
+static inline void pmd_update(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp)
+{
+ PVOP_VCALL3(pv_mmu_ops.pmd_update, mm, addr, pmdp);
+}
static inline void pte_update_defer(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
@@ -456,6 +461,12 @@ static inline void pte_update_defer(stru
PVOP_VCALL3(pv_mmu_ops.pte_update_defer, mm, addr, ptep);
}
+static inline void pmd_update_defer(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp)
+{
+ PVOP_VCALL3(pv_mmu_ops.pmd_update_defer, mm, addr, pmdp);
+}
+
static inline pte_t __pte(pteval_t val)
{
pteval_t ret;
@@ -557,6 +568,18 @@ static inline void set_pte_at(struct mm_
PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
}
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmd)
+{
+ if (sizeof(pmdval_t) > sizeof(long))
+ /* 5 arg words */
+ pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd);
+ else
+ PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp, pmd.pmd);
+}
+#endif
+
static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
{
pmdval_t val = native_pmd_val(pmd);
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -266,10 +266,16 @@ struct pv_mmu_ops {
void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pteval);
void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
+ void (*set_pmd_at)(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmdval);
void (*pte_update)(struct mm_struct *mm, unsigned long addr,
pte_t *ptep);
void (*pte_update_defer)(struct mm_struct *mm,
unsigned long addr, pte_t *ptep);
+ void (*pmd_update)(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp);
+ void (*pmd_update_defer)(struct mm_struct *mm,
+ unsigned long addr, pmd_t *pmdp);
pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
pte_t *ptep);
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -422,8 +422,11 @@ struct pv_mmu_ops pv_mmu_ops = {
.set_pte = native_set_pte,
.set_pte_at = native_set_pte_at,
.set_pmd = native_set_pmd,
+ .set_pmd_at = native_set_pmd_at,
.pte_update = paravirt_nop,
.pte_update_defer = paravirt_nop,
+ .pmd_update = paravirt_nop,
+ .pmd_update_defer = paravirt_nop,
.ptep_modify_prot_start = __ptep_modify_prot_start,
.ptep_modify_prot_commit = __ptep_modify_prot_commit,
--
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:[~2010-01-26 13:59 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-26 13:51 [PATCH 00 of 31] Transparent Hugepage support #7 Andrea Arcangeli
2010-01-26 13:51 ` [PATCH 01 of 31] define MADV_HUGEPAGE Andrea Arcangeli
2010-01-26 14:49 ` Rik van Riel
2010-01-26 17:49 ` Mel Gorman
2010-01-27 16:37 ` Hugh Dickins
2010-01-27 17:13 ` Andrea Arcangeli
2010-01-27 17:29 ` Hugh Dickins
2010-01-27 17:45 ` Pekka Enberg
2010-01-27 21:44 ` Arnd Bergmann
2010-01-26 13:51 ` [PATCH 02 of 31] compound_lock Andrea Arcangeli
2010-01-26 14:51 ` Rik van Riel
2010-01-26 15:30 ` Andrea Arcangeli
2010-01-26 15:36 ` Christoph Lameter
2010-01-26 15:51 ` Andrea Arcangeli
2010-01-26 17:50 ` Mel Gorman
2010-01-26 13:51 ` [PATCH 03 of 31] alter compound get_page/put_page Andrea Arcangeli
2010-01-26 15:00 ` Rik van Riel
2010-01-26 15:31 ` Andrea Arcangeli
2010-01-26 16:00 ` Christoph Lameter
2010-01-26 18:02 ` Mel Gorman
2010-01-27 18:58 ` Andrea Arcangeli
2010-01-28 15:23 ` Mel Gorman
2010-01-26 13:51 ` [PATCH 04 of 31] update futex compound knowledge Andrea Arcangeli
2010-01-26 16:12 ` Rik van Riel
2010-01-26 17:10 ` Andrea Arcangeli
2010-01-26 19:48 ` Rik van Riel
2010-01-26 18:37 ` Mel Gorman
2010-01-27 19:45 ` Andrea Arcangeli
2010-01-28 15:33 ` Mel Gorman
2010-01-28 15:57 ` Andrea Arcangeli
2010-01-26 13:52 ` [PATCH 05 of 31] fix bad_page to show the real reason the page is bad Andrea Arcangeli
2010-01-26 16:13 ` Rik van Riel
2010-01-26 18:38 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 06 of 31] clear compound mapping Andrea Arcangeli
2010-01-26 16:13 ` Rik van Riel
2010-01-26 18:39 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 07 of 31] add native_set_pmd_at Andrea Arcangeli
2010-01-26 16:14 ` Rik van Riel
2010-01-26 19:10 ` Mel Gorman
2010-01-26 13:52 ` Andrea Arcangeli [this message]
2010-01-26 16:43 ` [PATCH 08 of 31] add pmd paravirt ops Rik van Riel
2010-01-26 19:13 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 09 of 31] no paravirt version of pmd ops Andrea Arcangeli
2010-01-26 16:46 ` Rik van Riel
2010-01-26 19:15 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 10 of 31] export maybe_mkwrite Andrea Arcangeli
2010-01-26 16:56 ` Rik van Riel
2010-01-26 19:23 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 11 of 31] comment reminder in destroy_compound_page Andrea Arcangeli
2010-01-26 16:59 ` Rik van Riel
2010-01-26 19:24 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 12 of 31] config_transparent_hugepage Andrea Arcangeli
2010-01-26 17:03 ` Rik van Riel
2010-01-26 19:34 ` Mel Gorman
2010-01-27 19:54 ` Andrea Arcangeli
2010-01-28 15:34 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 13 of 31] add pmd mangling functions to x86 Andrea Arcangeli
2010-01-26 17:11 ` Rik van Riel
2010-01-26 19:41 ` Mel Gorman
2010-01-27 19:59 ` Andrea Arcangeli
2010-01-26 13:52 ` [PATCH 14 of 31] add pmd mangling generic functions Andrea Arcangeli
2010-01-26 17:14 ` Rik van Riel
2010-01-26 19:44 ` Mel Gorman
2010-01-28 15:57 ` Andrea Arcangeli
2010-01-26 13:52 ` [PATCH 15 of 31] special pmd_trans_* functions Andrea Arcangeli
2010-01-26 17:20 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 16 of 31] bail out gup_fast on splitting pmd Andrea Arcangeli
2010-01-26 17:21 ` Rik van Riel
2010-01-26 19:50 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 17 of 31] pte alloc trans splitting Andrea Arcangeli
2010-01-26 17:24 ` Rik van Riel
2010-01-26 19:53 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 18 of 31] add pmd mmu_notifier helpers Andrea Arcangeli
2010-01-26 17:24 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 19 of 31] clear page compound Andrea Arcangeli
2010-01-26 17:25 ` Rik van Riel
2010-01-26 19:56 ` Mel Gorman
2010-01-27 22:51 ` Andrea Arcangeli
2010-01-26 13:52 ` [PATCH 20 of 31] add pmd_huge_pte to mm_struct Andrea Arcangeli
2010-01-26 17:48 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 21 of 31] split_huge_page_mm/vma Andrea Arcangeli
2010-01-26 17:34 ` Mel Gorman
2010-01-26 19:49 ` Andrea Arcangeli
2010-01-26 20:03 ` Mel Gorman
2010-01-26 17:58 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 22 of 31] split_huge_page paging Andrea Arcangeli
2010-01-26 18:02 ` Rik van Riel
2010-01-27 18:43 ` Andrea Arcangeli
2010-01-26 20:08 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 23 of 31] clear_copy_huge_page Andrea Arcangeli
2010-01-26 18:14 ` Rik van Riel
2010-01-26 20:10 ` Mel Gorman
2010-01-26 13:52 ` [PATCH 24 of 31] kvm mmu transparent hugepage support Andrea Arcangeli
2010-01-26 18:16 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 25 of 31] transparent hugepage core Andrea Arcangeli
2010-01-26 22:34 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 26 of 31] madvise(MADV_HUGEPAGE) Andrea Arcangeli
2010-01-26 22:50 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 27 of 31] pmd_trans_huge migrate bugcheck Andrea Arcangeli
2010-01-26 22:51 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 28 of 31] memcg compound Andrea Arcangeli
2010-01-26 22:53 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 29 of 31] memcg huge memory Andrea Arcangeli
2010-01-26 22:53 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 30 of 31] transparent hugepage vmstat Andrea Arcangeli
2010-01-26 22:55 ` Rik van Riel
2010-01-28 1:04 ` Andrea Arcangeli
2010-01-28 1:22 ` Rik van Riel
2010-01-26 13:52 ` [PATCH 31 of 31] khugepaged Andrea Arcangeli
2010-01-26 23:04 ` Rik van Riel
2010-01-26 17:55 ` [PATCH 00 of 31] Transparent Hugepage support #7 Michael S. Tsirkin
2010-01-27 0:00 ` Andrea Arcangeli
2010-01-27 0:32 ` Andrea Arcangeli
2010-01-27 0:47 ` Andrea Arcangeli
2010-01-27 20:20 ` Michael S. Tsirkin
2010-01-27 22:58 ` Andrea Arcangeli
-- strict thread matches above, loose matches on Subject: below --
2010-01-28 14:33 [PATCH 00 of 31] Transparent Hugepage support #8 Andrea Arcangeli
2010-01-28 14:33 ` [PATCH 08 of 31] add pmd paravirt ops Andrea Arcangeli
2010-01-25 17:18 [PATCH 00 of 31] Transparent Hugepage support #6 Andrea Arcangeli
2010-01-25 17:18 ` [PATCH 08 of 31] add pmd paravirt ops Andrea Arcangeli
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=89fa0f684abe1cec34c3.1264513923@v2.random \
--to=aarcange@redhat.com \
--cc=agl@us.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=andi@firstfloor.org \
--cc=avi@redhat.com \
--cc=benh@kernel.crashing.org \
--cc=bpicco@redhat.com \
--cc=chellwig@redhat.com \
--cc=chrisw@sous-sol.org \
--cc=cl@linux-foundation.org \
--cc=dave@linux.vnet.ibm.com \
--cc=hugh.dickins@tiscali.co.uk \
--cc=ieidus@redhat.com \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=kosaki.motohiro@jp.fujitsu.com \
--cc=linux-mm@kvack.org \
--cc=mel@csn.ul.ie \
--cc=mingo@elte.hu \
--cc=mtosatti@redhat.com \
--cc=npiggin@suse.de \
--cc=riel@redhat.com \
--cc=travis@sgi.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).