: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
arm64/mm/hotplug: Register boot memory hot remove notifier earlier
arm64/mm/hotplug: Enable MEM_OFFLINE event handling
arm64/mm/hotplug: Ensure early memory sections are all online
arch/arm64/mm/mmu.c | 95
-by: Gavin Shan
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 34 --
1 file changed, 32 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 71dd9d753b8b..ca6d4952b733 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch
the
boot section scanning is selectively enabled with DEBUG_VM.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Steve Capper
Cc: Mark Brown
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm
: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Steve Capper
Cc: Mark Brown
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Gavin Shan
Reviewed-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 13
On 10/20/2020 11:39 PM, Valentin Schneider wrote:
>
> Hi,
>
> Nit on the subject: this only increases the default, the max is still 2¹⁰.
Agreed.
>
> On 20/10/20 18:34, Vanshidhar Konda wrote:
>> The current arm64 max NUMA nodes default to 4. Today's arm64 systems can
>> reach or exceed 16.
On 10/07/2020 02:09 PM, David Hildenbrand wrote:
>>> We do have __add_pages()->check_hotplug_memory_addressable() where we
>>> already check against MAX_PHYSMEM_BITS.
>>
>> Initially, I thought about check_hotplug_memory_addressable() but the
>> existing check that asserts end of hotplug wrt
_memory_hotpluggable);
>
> This feels wrong.
>
>> Signed-off-by: Sudarshan Rajagopalan
>> Cc: Catalin Marinas
>> Cc: Will Deacon
>> Cc: Anshuman Khandual
>> Cc: Mark Rutland
>> Cc: Gavin Shan
>> Cc: Logan Gunthorpe
>> Cc: David Hilde
Hello Sudarshan,
On 10/17/2020 07:32 AM, Sudarshan Rajagopalan wrote:
> In the patch that enables memory hot-remove (commit bbd6ec605c0f ("arm64/mm:
> Enable memory hot remove")) for arm64, there’s a notifier put in place that
> prevents boot memory from being offlined and removed. The commit
On 10/17/2020 03:05 PM, David Hildenbrand wrote:
> On 17.10.20 01:11, Sudarshan Rajagopalan wrote:
>>
>> Hello Anshuman,
>>
> David here,
>
> in general, if your driver offlines+removes random memory, it is doing
> something *very* wrong and dangerous. You shouldn't ever be
>
Hello Sudarshan,
On 10/17/2020 04:41 AM, Sudarshan Rajagopalan wrote:
>
> Hello Anshuman,
>
> In the patch that enables memory hot-remove (commit bbd6ec605c0f ("arm64/mm:
> Enable memory hot remove")) for arm64, there’s a notifier put in place that
> prevents boot memory from being offlined
On 10/12/2020 12:59 PM, Ard Biesheuvel wrote:
> On Tue, 6 Oct 2020 at 08:36, Anshuman Khandual
> wrote:
>>
>>
>>
>> On 09/30/2020 01:32 PM, Anshuman Khandual wrote:
>>> But if __is_lm_address() checks against the effective linear range instead
>>
cked
>
> Signed-off-by: Sudarshan Rajagopalan
> Reviewed-by: Gavin Shan
> Cc: Catalin Marinas
> Cc: Will Deacon
> Cc: Anshuman Khandual
> Cc: Mark Rutland
> Cc: Logan Gunthorpe
> Cc: David Hildenbrand
> Cc: Andrew Morton
> Cc: Steven Price
Nonetheless, thi
On 10/06/2020 09:04 PM, David Hildenbrand wrote:
> On 17.09.20 10:46, Anshuman Khandual wrote:
>> During memory hotplug process, the linear mapping should not be created for
>> a given memory range if that would fall outside the maximum allowed linear
>> range. Else
On 09/30/2020 01:32 PM, Anshuman Khandual wrote:
> But if __is_lm_address() checks against the effective linear range instead
> i.e [_PAGE_OFFSET(vabits_actual)..(PAGE_END - 1)], it can be used for hot
> plug physical range check there after. Perhaps something like this, though
>
On 09/30/2020 04:31 PM, Ard Biesheuvel wrote:
> On Wed, 30 Sep 2020 at 10:03, Anshuman Khandual
> wrote:
>>
>>
>> On 09/29/2020 08:52 PM, Will Deacon wrote:
>>> On Tue, Sep 29, 2020 at 01:34:24PM +0530, Anshuman Khandual wrote:
>>>>
>&g
epages().
>
> Signed-off-by: Sudarshan Rajagopalan
> Cc: Catalin Marinas
> Cc: Will Deacon
> Cc: Anshuman Khandual
> Cc: Mark Rutland
> Cc: Logan Gunthorpe
> Cc: David Hildenbrand
> Cc: Andrew Morton
> Cc: Steven Price
> ---
> arch/arm64/mm/mmu.c | 11 ++
On 10/01/2020 06:23 AM, Gavin Shan wrote:
> Hi Anshuman,
>
> On 9/29/20 11:54 PM, Anshuman Khandual wrote:
>> This adds a validation function that scans the entire boot memory and makes
>> sure that all early memory sections are online. This check is essential for
&
On 10/01/2020 05:27 AM, Gavin Shan wrote:
> Hi Anshuman,
>
> On 9/29/20 11:54 PM, Anshuman Khandual wrote:
>> This enables MEM_OFFLINE memory event handling. It will help intercept any
>> possible error condition such as if boot memory some how still got offlined
>
On 10/05/2020 11:35 AM, Michal Hocko wrote:
> On Mon 05-10-20 07:59:12, Anshuman Khandual wrote:
>>
>>
>> On 10/02/2020 05:34 PM, Michal Hocko wrote:
>>> On Wed 30-09-20 11:30:49, Anshuman Khandual wrote:
>>>> Add following new vmstat events which will
On 10/02/2020 05:34 PM, Michal Hocko wrote:
> On Wed 30-09-20 11:30:49, Anshuman Khandual wrote:
>> Add following new vmstat events which will track HugeTLB page migration.
>>
>> 1. HUGETLB_MIGRATION_SUCCESS
>> 2. HUGETLB_MIGRATION_FAILURE
>>
>> It follow
epages().
>
> Signed-off-by: Sudarshan Rajagopalan
> Cc: Catalin Marinas
> Cc: Will Deacon
> Cc: Anshuman Khandual
> Cc: Mark Rutland
> Cc: Logan Gunthorpe
> Cc: David Hildenbrand
> Cc: Andrew Morton
> Cc: Steven Price
> ---
> arch/arm64/mm/mmu.c |
On 09/30/2020 01:16 PM, Oscar Salvador wrote:
> On Wed, Sep 30, 2020 at 11:30:49AM +0530, Anshuman Khandual wrote:
>> -is_thp = PageTransHuge(page) && !PageHuge(page);
>> -nr_subpages = thp_nr_pages(page);
>> +
On 09/29/2020 08:52 PM, Will Deacon wrote:
> On Tue, Sep 29, 2020 at 01:34:24PM +0530, Anshuman Khandual wrote:
>>
>>
>> On 09/29/2020 02:05 AM, Will Deacon wrote:
>>> On Thu, Sep 17, 2020 at 02:16:42PM +0530, Anshuman Khandual wrote:
>>>> During memory
' to accommodate now available HugeTLB based statistics.
Cc: Daniel Jordan
Cc: Zi Yan
Cc: John Hubbard
Cc: Mike Kravetz
Cc: Oscar Salvador
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on linux-next and v5.9-rc7
-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 29 +++--
1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 4e70f4fea06c..90a30f5ebfc0 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1482,13
: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Steve Capper
Cc: Mark Brown
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Gavin Shan
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 13 +++--
1 file changed
: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 59 +
1 file changed, 59 insertions(+)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 90a30f5ebfc0..b67a657ea1ad 100644
--- a/arch/arm64/mm/mmu.c
+++ b
: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Steve Capper
Cc: Mark Brown
Cc: Gavin Shan
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
arm64/mm/hotplug: Register boot memory hot remove notifier earlier
arm64/mm/hotplug
On 09/29/2020 02:05 AM, Will Deacon wrote:
> On Thu, Sep 17, 2020 at 02:16:42PM +0530, Anshuman Khandual wrote:
>> During memory hotplug process, the linear mapping should not be created for
>> a given memory range if that would fall outside the maximum allowed linear
>>
On 09/29/2020 03:34 AM, Mike Kravetz wrote:
> On 9/25/20 2:12 AM, Anshuman Khandual wrote:
>> Add following new vmstat events which will track HugeTLB page migration.
>>
>> 1. HUGETLB_MIGRATION_SUCCESS
>> 2. HUGETLB_MIGRATION_FAILURE
>>
>> It follow
On 09/25/2020 03:19 PM, Oscar Salvador wrote:
> On Fri, Sep 25, 2020 at 02:42:29PM +0530, Anshuman Khandual wrote:
>> Add following new vmstat events which will track HugeTLB page migration.
>>
>> 1. HUGETLB_MIGRATION_SUCCESS
>> 2. HUGETLB_MIGRATION_FAILURE
&g
pages" to accommodate now available HugeTLB based statistics.
Cc: Daniel Jordan
Cc: Zi Yan
Cc: John Hubbard
Cc: Mike Kravetz
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
This is just for getting some early feedbacks. Applie
On 09/23/2020 12:01 PM, Gavin Shan wrote:
> Hi Anshuman,
>
> On 9/21/20 10:05 PM, Anshuman Khandual wrote:
>> This enables MEM_OFFLINE memory event handling. It will help intercept any
>> possible error condition such as if boot memory some how still got offlined
>
On 09/23/2020 11:34 AM, Gavin Shan wrote:
> Hi Anshuman,
>
> On 9/21/20 10:05 PM, Anshuman Khandual wrote:
>> This moves memory notifier registration earlier in the boot process from
>> device_initcall() to early_initcall() which will help in guarding against
>>
-by: Anshuman Khandual
---
This applies on current linux-next (20200923).
mm/debug_vm_pgtable.c | 55 ---
1 file changed, 55 deletions(-)
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index b0edca2e2c73..c5ae822cc6bc 100644
--- a/mm
On 09/21/2020 05:35 PM, Anshuman Khandual wrote:
> This enables MEM_OFFLINE memory event handling. It will help intercept any
> possible error condition such as if boot memory some how still got offlined
> even after an explicit notifier failure, potentially by a future change in
>
On 09/22/2020 02:50 PM, Aneesh Kumar K.V wrote:
> On 9/22/20 2:22 PM, Anshuman Khandual wrote:
>>
>>
>> On 09/22/2020 09:33 AM, Aneesh Kumar K.V wrote:
>>> On 9/21/20 2:51 PM, kernel test robot wrote:
>>>> Greeting,
>>>>
>&
On 09/22/2020 09:33 AM, Aneesh Kumar K.V wrote:
> On 9/21/20 2:51 PM, kernel test robot wrote:
>> Greeting,
>>
>> FYI, we noticed the following commit (built with gcc-9):
>>
>> commit: e2aad6f1d232b457ea6a3194992dd4c0a83534a5
>> ("mm/debug_vm_pgtable/locks: take correct page table lock")
>>
On 09/21/2020 08:26 AM, Gavin Shan wrote:
> Hi Robin,
>
> On 9/17/20 8:22 PM, Robin Murphy wrote:
>> On 2020-09-17 04:35, Gavin Shan wrote:
>>> On 9/16/20 6:28 PM, Will Deacon wrote:
On Wed, Sep 16, 2020 at 01:25:23PM +1000, Gavin Shan wrote:
> This enables color zero pages by
: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Steve Capper
Cc: Mark Brown
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
arm64/mm/hotplug: Register boot memory hot remove notifier earlier
arm64/mm/hotplug: Enable MEM_OFFLINE event
and help
debug further.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Steve Capper
Cc: Mark Brown
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 37
: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Steve Capper
Cc: Mark Brown
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 14 --
1 file changed, 12 insertions(+), 2
: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 59 +
1 file changed, 59 insertions(+)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 6b171bd88bcf..124eeb84ec43 100644
--- a/arch/arm64/mm/mmu.c
+++ b
t; +
> nr_thp_failed++;
> nr_failed += nr_subpages;
> goto out;
>
Moving the failure path inside the split path makes sense, now
that it is already established that the page is indeed a THP.
Reviewed-by: Anshuman Khandual
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 27 +++
1 file changed, 27 insertions(+)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 75df62fea1b6..d59ffabb9c84 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1433,11 +1433,38 @@ s
)
> -{
> - pr_err("%s:%d: bad pmd %016lx.\n", file, line, val);
> -}
> -
> -void __pud_error(const char *file, int line, unsigned long val)
> -{
> - pr_err("%s:%d: bad pud %016lx.\n", file, line, val);
> -}
> -
> -void __pgd_error(const char *file, int line, unsigned long val)
> -{
> - pr_err("%s:%d: bad pgd %016lx.\n", file, line, val);
> -}
> -
> /* GENERIC_BUG traps */
>
> int is_valid_bugaddr(unsigned long addr)
>
Looks good to me. Seems like a sensible clean up which reduces code.
Tried booting on multiple page size configs and see no regression.
Reviewed-by: Anshuman Khandual
On 09/14/2020 05:17 AM, Gavin Shan wrote:
> The function __{pgd, pud, pmd, pte}_error() are introduced so that
> they can be called by {pgd, pud, pmd, pte}_ERROR(). However, some
> of the functions could never be called when the corresponding page
> table level isn't enabled. For example,
On 09/11/2020 07:36 PM, Catalin Marinas wrote:
> Hi Anshuman,
>
> On Mon, Aug 24, 2020 at 09:34:29AM +0530, Anshuman Khandual wrote:
>> This brings about three different changes to the sole memory event notifier
>> for arm64 platform and improves it's robustness while
s new configuration ARM64_CONT_PMD_SHIFT makes sense, as
it eliminates existing constant values that are used in an ad hoc
manner, while computing contiguous page table entry properties.
Reviewed-by: Anshuman Khandual
AGES)
> -#define CONT_PTE_SHIFT (7 + PAGE_SHIFT)
> #define CONT_PMD_SHIFT (5 + PMD_SHIFT)
> #else
> -#define CONT_PTE_SHIFT (4 + PAGE_SHIFT)
> #define CONT_PMD_SHIFT (4 + PMD_SHIFT)
> #endif
>
>
Looks good to me and there are no obvious regressions as well.
Reviewed-by: Anshuman Khandual
mory hot-add as best as possible.
Understood, seems like there is enough potential use cases and scenarios
right now, to consider this fallback mechanism and a possible mixed page
size vmemmap. But I would let others weigh in, on the performance impact.
>
> Thanks and Regards,
On 09/10/2020 01:38 PM, David Hildenbrand wrote:
> On 10.09.20 08:45, Anshuman Khandual wrote:
>> Hello Sudarshan,
>>
>> On 09/10/2020 11:35 AM, Sudarshan Rajagopalan wrote:
>>> When section mappings are enabled, we allocate vmemmap pages from physically
>>
ack option to allocate vmemmap pages
>> from
>> discontinuous pages using vmemmap_populate_basepages().
>>
>> Signed-off-by: Sudarshan Rajagopalan
>> Cc: Catalin Marinas
>> Cc: Will Deacon
>> Cc: Anshuman Khandual
>> Cc: Mark Rutland
>> Cc: Logan Guntho
On 09/10/2020 02:01 PM, Gavin Shan wrote:
> Hi Anshuman,
>
> On 9/10/20 4:17 PM, Anshuman Khandual wrote:
>> On 09/08/2020 12:49 PM, Gavin Shan wrote:
>>> The macro CONT_PTE_SHIFT actually depends on CONT_SHIFT, which has
>>> been defined in page-def.h, based
to kernel ?
>
> Signed-off-by: Sudarshan Rajagopalan
> Cc: Catalin Marinas
> Cc: Will Deacon
> Cc: Anshuman Khandual
> Cc: Mark Rutland
> Cc: Logan Gunthorpe
> Cc: David Hildenbrand
> Cc: Andrew Morton
> Cc: Steven Price
> ---
> arch/arm64/mm/mmu.c
On 09/08/2020 12:49 PM, Gavin Shan wrote:
> The macro CONT_PTE_SHIFT actually depends on CONT_SHIFT, which has
> been defined in page-def.h, based on CONFIG_ARM64_CONT_SHIFT. Lets
> reflect the dependency.
>
> Signed-off-by: Gavin Shan
> ---
> arch/arm64/include/asm/pgtable-hwdef.h | 4 +---
_PMD_SHIFT - PMD_SHIFT))
> #define CONT_PMD_SIZE(CONT_PMDS * PMD_SIZE)
> #define CONT_PMD_MASK(~(CONT_PMD_SIZE - 1))
> -/* the numerical offset of the PTE within a range of CONT_PTES */
> -#define CONT_RANGE_OFFSET(addr) (((addr)>>PAGE_SHIFT)&(CONT_PTES-1))
>
> /*
> * Hardware page table definitions.
>
Reviewed-by: Anshuman Khandual
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: Suzuki K Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
This applies on 5.9-rc4
Mark, since the patch has changed I have dropped your Acked-by: tag. Are you
happy to give a new one
ad.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/pgtable-prot.h | 7 ++
arch/arm64/include/asm/pgtable.h | 34 ---
2 files changed, 38 insertions(+), 3 deletions(-)
diff --git a/a
PMD state per Catalin
Changes in RFC V1:
(https://patchwork.kernel.org/project/linux-mm/list/?series=138797)
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Suzuki Poulose
Cc: Zi Yan
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Anshuman
: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Suzuki Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
arch/arm64/Kconfig | 4
arch/arm64/include/asm/pgtable.h | 5 +
2
On 09/03/2020 11:01 PM, Ralph Campbell wrote:
>
> On 9/3/20 9:56 AM, Catalin Marinas wrote:
>> On Mon, Aug 17, 2020 at 02:49:43PM +0530, Anshuman Khandual wrote:
>>> pmd_present() and pmd_trans_huge() are expected to behave in the following
>>> manner during
On 09/03/2020 10:26 PM, Catalin Marinas wrote:
> On Mon, Aug 17, 2020 at 02:49:43PM +0530, Anshuman Khandual wrote:
>> pmd_present() and pmd_trans_huge() are expected to behave in the following
>> manner during various phases of a given PMD. It is derived from a previous
>>
On 08/24/2020 09:34 AM, Anshuman Khandual wrote:
> This brings about three different changes to the sole memory event notifier
> for arm64 platform and improves it's robustness while also enhancing debug
> capabilities during potential memory offlining error conditions.
>
On 09/08/2020 01:11 PM, Will Deacon wrote:
> On Tue, Sep 08, 2020 at 10:43:12AM +0530, Anshuman Khandual wrote:
>>
>>
>> On 09/07/2020 05:46 PM, Will Deacon wrote:
>>> On Mon, Aug 17, 2020 at 05:34:23PM +0530, Anshuman Khandual wrote:
>>>> HWCA
On 09/07/2020 05:46 PM, Will Deacon wrote:
> On Mon, Aug 17, 2020 at 05:34:23PM +0530, Anshuman Khandual wrote:
>> HWCAP name arrays (hwcap_str, compat_hwcap_str, compat_hwcap2_str) that are
>> scanned for /proc/cpuinfo are detached from their bit definitions making i
ambiguous, as
arch/arm64/mm/ptdump.c instead.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Steven Price
Cc: Andrew Morton
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/Makefile | 2 +-
arch/arm64
modification turns the warning statements into BUGS.
These warnings are from mm/debug_vm_pgtable.c test, wont be converted into BUGS.
But nonetheless, need to be addressed though.
>
> The problem was bisected to commit a5c3b9ffb0f4 ("mm/debug_vm_pgtable: add
> tests validating a
On 08/24/2020 09:34 AM, Anshuman Khandual wrote:
> This brings about three different changes to the sole memory event notifier
> for arm64 platform and improves it's robustness while also enhancing debug
> capabilities during potential memory offlining error conditions.
>
...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
This applies on 5.9-rc2
Changes in V2:
- Dropped all generic changes wrt MEM_CANCEL_OFFLINE reasons enumeration
- Dropped all related (processing MEM_CANCEL_OFFLINE reasons) changes on arm64
- Added
On 08/20/2020 12:48 AM, Atish Patra wrote:
> On Tue, Aug 18, 2020 at 8:19 PM Anshuman Khandual
> wrote:
>>
>>
>>
>> On 08/15/2020 03:17 AM, Atish Patra wrote:
>>> ARM64 numa implementation is generic enough that RISC-V can reuse that
>>>
On 08/18/2020 05:56 PM, Jonathan Cameron wrote:
> On Tue, 18 Aug 2020 15:11:58 +0530
> Anshuman Khandual wrote:
>
>> On 08/18/2020 02:43 PM, Jonathan Cameron wrote:
>>> On Mon, 17 Aug 2020 14:49:43 +0530
>>> Anshuman Khandual wrote:
>>>
>>&g
[-Wmissing-prototypes]
> 15 | void rodata_test(void)
> | ^~~
>
> Fixes: 2959a5f726f6 ("mm: add arch-independent testcases for RODATA")
> Signed-off-by: Leon Romanovsky
This build failure appears only with W=1 and gets fixed with this.
Reviewed-by: Ans
On 08/19/2020 11:17 AM, Alex Shi wrote:
> Current pageblock_flags is only 4 bits, so it has to share a char size
> in cmpxchg when get set, the false sharing cause perf drop.
>
> If we incrase the bits up to 8, false sharing would gone in cmpxchg. and
> the only cost is half char per
On 08/19/2020 11:17 AM, Alex Shi wrote:
> pageblock_flags is used as long, since every pageblock_flags is just 4
> bits, 'long' size will include 8(32bit machine) or 16 pageblocks' flags,
> that flag setting has to sync in cmpxchg with 7 or 15 other pageblock
> flags. It would cause long
On 08/15/2020 03:17 AM, Atish Patra wrote:
> ARM64 numa implementation is generic enough that RISC-V can reuse that
> implementation with very minor cosmetic changes. This will help both
> ARM64 and RISC-V in terms of maintanace and feature improvement
>
> Move the numa implementation code to
On 08/18/2020 02:43 PM, Jonathan Cameron wrote:
> On Mon, 17 Aug 2020 14:49:43 +0530
> Anshuman Khandual wrote:
>
>> pmd_present() and pmd_trans_huge() are expected to behave in the following
>> manner during various phases of a given PMD. It is derived from a previous
&
On 08/18/2020 11:35 AM, Michal Hocko wrote:
> On Tue 18-08-20 09:52:02, Anshuman Khandual wrote:
>> Currently a debug message is printed describing the reason for memory range
>> offline failure. This just enumerates existing reason codes which improves
>> overall
: Dan Williams
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
This is based on 5.9-rc1
include/linux/memory.h | 28
mm/memory_hotplug.c| 18 +-
2 files changed, 37 insertions(+), 9 deletions(-)
diff
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: Suzuki K Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
This applies on 5.9-rc1
Mark, since the patch has changed I have dropped your Acked-by: tag. Are you
happy to give a new one
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Suzuki Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/Kconfig | 4
arch/arm64/include/asm/pgtable.h | 5 +
2 files changed, 9
x-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/pgtable-prot.h | 7 ++
arch/arm64/include/asm/pgtable.h | 34 ---
2 files changed, 38 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/in
in RFC V1:
(https://patchwork.kernel.org/project/linux-mm/list/?series=138797)
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Suzuki Poulose
Cc: Zi Yan
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (2):
arm64/mm: Change
On 07/07/2020 11:14 PM, Catalin Marinas wrote:
> On Mon, Jul 06, 2020 at 09:27:04AM +0530, Anshuman Khandual wrote:
>> On 07/02/2020 05:41 PM, Catalin Marinas wrote:
>>> On Mon, Jun 15, 2020 at 06:45:17PM +0530, Anshuman Khandual wrote:
>>>> --- a/arch/arm64/in
On 07/24/2020 03:00 PM, Catalin Marinas wrote:
> On Fri, Jul 24, 2020 at 01:46:18PM +0530, Anshuman Khandual wrote:
>> On 07/24/2020 08:38 AM, Kefeng Wang wrote:
>>> On 2020/7/24 11:04, Kefeng Wang wrote:
>>>> ERROR: modpost: "__cpu_logical_map&qu
On 07/24/2020 03:05 PM, Catalin Marinas wrote:
> On Fri, Jul 24, 2020 at 10:13:52AM +0100, Mark Rutland wrote:
>> On Fri, Jul 24, 2020 at 01:46:18PM +0530, Anshuman Khandual wrote:
>>> On 07/24/2020 08:38 AM, Kefeng Wang wrote:
>>>>> Reported-by: Hulk Robot
On 07/24/2020 08:38 AM, Kefeng Wang wrote:
> +maillist
This does not seem to be a correct method of posting any patch.
>
> On 2020/7/24 11:04, Kefeng Wang wrote:
>> ERROR: modpost: "__cpu_logical_map" [drivers/cpufreq/tegra194-cpufreq.ko]
>> undefined!
>>
>> ARM64 tegra194-cpufreq driver
On 07/23/2020 11:44 AM, Baoquan He wrote:
> On 07/23/20 at 10:36am, Anshuman Khandual wrote:
>>
>>
>> On 07/23/2020 08:52 AM, Baoquan He wrote:
>>> The checking is_migration_entry() and is_hwpoison_entry() are stricter
>>> than non_swap_entry(), means
On 07/23/2020 08:52 AM, Baoquan He wrote:
> A customer complained that no message is logged when the number of
> persistent huge pages is not changed to the exact value written to
> the sysfs or proc nr_hugepages file.
>
> In the current code, a best effort is made to satisfy requests made
On 07/23/2020 08:52 AM, Baoquan He wrote:
> Change 'pecify' to 'Specify'.
>
> Signed-off-by: Baoquan He
> Reviewed-by: Mike Kravetz
> Reviewed-by: David Hildenbrand
> ---
> Documentation/admin-guide/mm/hugetlbpage.rst | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git
t; else
> return false;
>
It would be better if the commit message contains details about
the existing redundant check. But either way.
Reviewed-by: Anshuman Khandual
if (non_swap_entry(swp) && is_hwpoison_entry(swp))
> - return 1;
> + return true;
> else
> - return 0;
> + return false;
> }
>
> int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
>
Reviewed-by: Anshuman Khandual
On 07/21/2020 01:02 PM, Wei Li wrote:
> For the memory hole, sparse memory model that define SPARSEMEM_VMEMMAP
> do not free the reserved memory for the page map, this patch do it.
>
> Signed-off-by: Wei Li
> Signed-off-by: Chen Feng
> Signed-off-by: Xia Qing
> ---
> arch/arm64/mm/init.c |
On 07/17/2020 10:32 PM, Mike Kravetz wrote:
> On 7/16/20 10:02 PM, Anshuman Khandual wrote:
>>
>>
>> On 07/16/2020 11:55 PM, Mike Kravetz wrote:
>>> >From 17c8f37afbf42fe7412e6eebb3619c6e0b7e1c3c Mon Sep 17 00:00:00 2001
>>> From: Mike Kravetz
On 07/17/2020 11:07 PM, Mike Kravetz wrote:
> On 7/17/20 2:51 AM, Anshuman Khandual wrote:
>>
>>
>> On 07/17/2020 02:06 PM, Will Deacon wrote:
>>> On Fri, Jul 17, 2020 at 10:32:53AM +0530, Anshuman Khandual wrote:
>>>>
>>>>
>&g
On 07/17/2020 02:06 PM, Will Deacon wrote:
> On Fri, Jul 17, 2020 at 10:32:53AM +0530, Anshuman Khandual wrote:
>>
>>
>> On 07/16/2020 11:55 PM, Mike Kravetz wrote:
>>> >From 17c8f37afbf42fe7412e6eebb3619c6e0b7e1c3c Mon Sep 17 00:00:00 2001
>>> From: M
On 07/16/2020 11:55 PM, Mike Kravetz wrote:
>>From 17c8f37afbf42fe7412e6eebb3619c6e0b7e1c3c Mon Sep 17 00:00:00 2001
> From: Mike Kravetz
> Date: Tue, 14 Jul 2020 15:54:46 -0700
> Subject: [PATCH] hugetlb: move cma reservation to code setting up gigantic
> hstate
>
> Instead of calling
On 07/16/2020 07:44 PM, Steven Price wrote:
> On 13/07/2020 04:23, Anshuman Khandual wrote:
>> This adds new tests validating arch page table helpers for these following
>> core memory features. These tests create and test specific mapping types at
>> various page table lev
On 07/15/2020 02:56 AM, Emil Renner Berthing wrote:
> This allows the pgtable tests to be built.
>
> Signed-off-by: Emil Renner Berthing
> ---
>
> The tests seem to succeed both in Qemu and on the HiFive Unleashed
>
> Both with and without the recent additions in
>
Cc: linux-a...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Mike Rapoport
Suggested-by: Mike Rapoport
Signed-off-by: Anshuman Khandual
---
Documentation/vm/arch_pgtable_helpers.rst | 258 ++
mm/debug_vm
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