* + mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch added to mm-unstable branch
@ 2024-03-30 3:33 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2024-03-30 3:33 UTC (permalink / raw)
To: mm-commits, ying.huang, wangkefeng.wang, ryan.roberts, mgorman,
jhubbard, david, baolin.wang, akpm
The patch titled
Subject: mm: factor out the numa mapping rebuilding into a new helper
has been added to the -mm mm-unstable branch. Its filename is
mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Baolin Wang <baolin.wang@linux.alibaba.com>
Subject: mm: factor out the numa mapping rebuilding into a new helper
Date: Fri, 29 Mar 2024 14:56:45 +0800
Patch series "support multi-size THP numa balancing", v2.
This patchset tries to support mTHP numa balancing, as a simple solution
to start, the NUMA balancing algorithm for mTHP will follow the THP
strategy as the basic support. Please find details in each patch.
This patch (of 2):
To support large folio's numa balancing, factor out the numa mapping
rebuilding into a new helper as a preparation.
Link: https://lkml.kernel.org/r/cover.1711683069.git.baolin.wang@linux.alibaba.com
Link: https://lkml.kernel.org/r/8bc2586bdd8dbbe6d83c09b77b360ec8fcac3736.1711683069.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/memory.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
--- a/mm/memory.c~mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper
+++ a/mm/memory.c
@@ -5064,6 +5064,20 @@ int numa_migrate_prep(struct folio *foli
return mpol_misplaced(folio, vmf, addr);
}
+static void numa_rebuild_single_mapping(struct vm_fault *vmf, struct vm_area_struct *vma,
+ bool writable)
+{
+ pte_t pte, old_pte;
+
+ old_pte = ptep_modify_prot_start(vma, vmf->address, vmf->pte);
+ pte = pte_modify(old_pte, vma->vm_page_prot);
+ pte = pte_mkyoung(pte);
+ if (writable)
+ pte = pte_mkwrite(pte, vma);
+ ptep_modify_prot_commit(vma, vmf->address, vmf->pte, old_pte, pte);
+ update_mmu_cache_range(vmf, vma, vmf->address, vmf->pte, 1);
+}
+
static vm_fault_t do_numa_page(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
@@ -5169,13 +5183,7 @@ out_map:
* Make it present again, depending on how arch implements
* non-accessible ptes, some can allow access by kernel mode.
*/
- old_pte = ptep_modify_prot_start(vma, vmf->address, vmf->pte);
- pte = pte_modify(old_pte, vma->vm_page_prot);
- pte = pte_mkyoung(pte);
- if (writable)
- pte = pte_mkwrite(pte, vma);
- ptep_modify_prot_commit(vma, vmf->address, vmf->pte, old_pte, pte);
- update_mmu_cache_range(vmf, vma, vmf->address, vmf->pte, 1);
+ numa_rebuild_single_mapping(vmf, vma, writable);
pte_unmap_unlock(vmf->pte, vmf->ptl);
goto out;
}
_
Patches currently in -mm which might be from baolin.wang@linux.alibaba.com are
mm-record-the-migration-reason-for-struct-migration_target_control.patch
mm-hugetlb-make-the-hugetlb-migration-strategy-consistent.patch
docs-hugetlbpagerst-add-hugetlb-migration-description.patch
mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch
mm-support-multi-size-thp-numa-balancing.patch
^ permalink raw reply [flat|nested] 2+ messages in thread* + mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch added to mm-unstable branch
@ 2024-03-26 19:11 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2024-03-26 19:11 UTC (permalink / raw)
To: mm-commits, ying.huang, wangkefeng.wang, ryan.roberts, mgorman,
jhubbard, david, baolin.wang, akpm
The patch titled
Subject: mm: factor out the numa mapping rebuilding into a new helper
has been added to the -mm mm-unstable branch. Its filename is
mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Baolin Wang <baolin.wang@linux.alibaba.com>
Subject: mm: factor out the numa mapping rebuilding into a new helper
Date: Tue, 26 Mar 2024 19:51:24 +0800
Patch series "support multi-size THP numa balancing".
This patchset tries to support mTHP numa balancing, as a simple solution
to start, the NUMA balancing algorithm for mTHP will follow the THP
strategy as the basic support.
This patch (of 2):
To support large folio's numa balancing, factor out the numa mapping
rebuilding into a new helper as a preparation.
Link: https://lkml.kernel.org/r/cover.1711453317.git.baolin.wang@linux.alibaba.com
Link: https://lkml.kernel.org/r/0c9df470bd2a62af8cc707cf01e42c7c744dd927.1711453317.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/memory.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
--- a/mm/memory.c~mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper
+++ a/mm/memory.c
@@ -5054,6 +5054,20 @@ int numa_migrate_prep(struct folio *foli
return mpol_misplaced(folio, vmf, addr);
}
+static void numa_rebuild_single_mapping(struct vm_fault *vmf, struct vm_area_struct *vma,
+ bool writable)
+{
+ pte_t pte, old_pte;
+
+ old_pte = ptep_modify_prot_start(vma, vmf->address, vmf->pte);
+ pte = pte_modify(old_pte, vma->vm_page_prot);
+ pte = pte_mkyoung(pte);
+ if (writable)
+ pte = pte_mkwrite(pte, vma);
+ ptep_modify_prot_commit(vma, vmf->address, vmf->pte, old_pte, pte);
+ update_mmu_cache_range(vmf, vma, vmf->address, vmf->pte, 1);
+}
+
static vm_fault_t do_numa_page(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
@@ -5159,13 +5173,7 @@ out_map:
* Make it present again, depending on how arch implements
* non-accessible ptes, some can allow access by kernel mode.
*/
- old_pte = ptep_modify_prot_start(vma, vmf->address, vmf->pte);
- pte = pte_modify(old_pte, vma->vm_page_prot);
- pte = pte_mkyoung(pte);
- if (writable)
- pte = pte_mkwrite(pte, vma);
- ptep_modify_prot_commit(vma, vmf->address, vmf->pte, old_pte, pte);
- update_mmu_cache_range(vmf, vma, vmf->address, vmf->pte, 1);
+ numa_rebuild_single_mapping(vmf, vma, writable);
pte_unmap_unlock(vmf->pte, vmf->ptl);
goto out;
}
_
Patches currently in -mm which might be from baolin.wang@linux.alibaba.com are
mm-record-the-migration-reason-for-struct-migration_target_control.patch
mm-hugetlb-make-the-hugetlb-migration-strategy-consistent.patch
docs-hugetlbpagerst-add-hugetlb-migration-description.patch
mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch
mm-support-multi-size-thp-numa-balancing.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-03-30 3:33 + mm-factor-out-the-numa-mapping-rebuilding-into-a-new-helper.patch added to mm-unstable branch Andrew Morton
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2024-03-26 19:11 Andrew Morton
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