From: Zi Yan
has_unmovable_pages() is only used in mm/page_isolation.c. Move it from
mm/page_alloc.c and make it static.
Signed-off-by: Zi Yan
Reviewed-by: Oscar Salvador
Reviewed-by: Mike Rapoport
---
include/linux/page-isolation.h | 2 -
mm/page_alloc.c| 119
From: Zi Yan
alloc_contig_range() now only needs to be aligned to pageblock_order,
drop virtio_mem size requirement that it needs to be the max of
pageblock_order and MAX_ORDER.
Signed-off-by: Zi Yan
---
drivers/virtio/virtio_mem.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions
From: Zi Yan
alloc_contig_range() worked at MAX_ORDER-1 granularity to avoid merging
pageblocks with different migratetypes. It might unnecessarily convert
extra pageblocks at the beginning and at the end of the range. Change
alloc_contig_range() to work at pageblock granularity.
Special
From: Zi Yan
Enable set_migratetype_isolate() to check specified sub-range for
unmovable pages during isolation. Page isolation is done
at max(MAX_ORDER_NR_PAEGS, pageblock_nr_pages) granularity, but not all
pages within that granularity are intended to be isolated. For example
From: Zi Yan
Hi all,
This patchset tries to remove the MAX_ORDER-1 alignment requirement for CMA
and alloc_contig_range(). It prepares for my upcoming changes to make
MAX_ORDER adjustable at boot time[1]. It is on top of mmotm-2022-02-14-17-46.
Changelog
===
V6
---
1. Resolved compilation
From: Zi Yan
Now alloc_contig_range() works at pageblock granularity. Change CMA
allocation, which uses alloc_contig_range(), to use pageblock_order
alignment.
Signed-off-by: Zi Yan
---
include/linux/cma.h| 4 ++--
include/linux/mmzone.h | 5 +
mm/page_alloc.c| 4 ++--
3 files
--
> mm/Kconfig | 3 +++
> mm/page_alloc.c | 32
> 5 files changed, 20 insertions(+), 34 deletions(-)
LGTM. Thanks. Reviewed-by: Zi Yan
--
Best Regards,
Yan, Zi
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| 20 +---
> 6 files changed, 19 insertions(+), 30 deletions(-)
LGTM. Thanks. Reviewed-by: Zi Yan
--
Best Regards,
Yan, Zi
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On 14 Feb 2022, at 2:59, Christophe Leroy wrote:
> Le 11/02/2022 à 17:41, Zi Yan a écrit :
>> From: Zi Yan
>>
>> alloc_contig_range() worked at MAX_ORDER-1 granularity to avoid merging
>> pageblocks with different migratetypes. It might unnecessarily convert
>>
On 14 Feb 2022, at 2:26, Christoph Hellwig wrote:
>> +int
>> +isolate_single_pageblock(unsigned long boundary_pfn, gfp_t gfp_flags, int
>> isolate_before_boundary);
>
> Please avoid the completely unreadably long line. i.e.
>
> int isolate_single_pageblock(unsigned long boundary_pfn, gfp_t gfp_fl
From: Zi Yan
alloc_contig_range() now only needs to be aligned to pageblock_order,
drop virtio_mem size requirement that it needs to be the max of
pageblock_order and MAX_ORDER.
Signed-off-by: Zi Yan
---
drivers/virtio/virtio_mem.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions
From: Zi Yan
Hi all,
This patchset tries to remove the MAX_ORDER-1 alignment requirement for CMA
and alloc_contig_range(). It prepares for my upcoming changes to make
MAX_ORDER adjustable at boot time[1]. It is on top of mmotm-2022-02-08-15-31.
Changelog
===
V5
---
1. Moved isolation address
From: Zi Yan
CMA only requires pageblock alignment now. Change CMA alignment in
fadump too.
Signed-off-by: Zi Yan
---
arch/powerpc/include/asm/fadump-internal.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/fadump-internal.h
b/arch/powerpc
From: Zi Yan
Enable set_migratetype_isolate() to check specified sub-range for
unmovable pages during isolation. Page isolation is done
at max(MAX_ORDER_NR_PAEGS, pageblock_nr_pages) granularity, but not all
pages within that granularity are intended to be isolated. For example
From: Zi Yan
alloc_contig_range() worked at MAX_ORDER-1 granularity to avoid merging
pageblocks with different migratetypes. It might unnecessarily convert
extra pageblocks at the beginning and at the end of the range. Change
alloc_contig_range() to work at pageblock granularity.
Special
From: Zi Yan
Now alloc_contig_range() works at pageblock granularity. Change CMA
allocation, which uses alloc_contig_range(), to use pageblock_order
alignment.
Signed-off-by: Zi Yan
---
include/linux/mmzone.h | 5 +
kernel/dma/contiguous.c | 2 +-
mm/cma.c| 6 ++
mm
From: Zi Yan
has_unmovable_pages() is only used in mm/page_isolation.c. Move it from
mm/page_alloc.c and make it static.
Signed-off-by: Zi Yan
Reviewed-by: Oscar Salvador
---
include/linux/page-isolation.h | 2 -
mm/page_alloc.c| 119 -
mm
On 4 Feb 2022, at 8:56, Oscar Salvador wrote:
> On Wed, Jan 19, 2022 at 02:06:20PM -0500, Zi Yan wrote:
>> From: Zi Yan
>>
>> alloc_contig_range() worked at MAX_ORDER-1 granularity to avoid merging
>> pageblocks with different migratetypes. It might unnecessarily con
On 2 Feb 2022, at 7:25, David Hildenbrand wrote:
> On 02.02.22 13:18, Oscar Salvador wrote:
>> On Wed, Jan 19, 2022 at 02:06:19PM -0500, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> Enable set_migratetype_isolate() to check specified sub-range for
>>> unm
On 25 Jan 2022, at 8:21, Oscar Salvador wrote:
> On Tue, Jan 25, 2022 at 02:19:46PM +0100, Oscar Salvador wrote:
>> I know that this has been discussed previously, and the cover-letter already
>> mentions it, but I think it would be great to have some sort of information
>> about
>> the problem i
On 24 Jan 2022, at 4:55, Oscar Salvador wrote:
> On 2022-01-19 20:06, Zi Yan wrote:
>> From: Zi Yan
>>
>> Enable set_migratetype_isolate() to check specified sub-range for
>> unmovable pages during isolation. Page isolation is done
>> at max(MAX_ORDER_NR_PAEGS
On 24 Jan 2022, at 9:02, Mel Gorman wrote:
> On Wed, Jan 19, 2022 at 02:06:17PM -0500, Zi Yan wrote:
>> From: Zi Yan
>>
>> This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
>> It prepares for the upcoming removal of the MAX_ORDER-1 alignment
From: Zi Yan
alloc_contig_range() now only needs to be aligned to pageblock_order,
drop virtio_mem size requirement that it needs to be the max of
pageblock_order and MAX_ORDER.
Signed-off-by: Zi Yan
---
drivers/virtio/virtio_mem.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions
From: Zi Yan
CMA only requires pageblock alignment now. Change CMA alignment in
fadump too.
Signed-off-by: Zi Yan
---
arch/powerpc/include/asm/fadump-internal.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/fadump-internal.h
b/arch/powerpc
From: Zi Yan
Now alloc_contig_range() works at pageblock granularity. Change CMA
allocation, which uses alloc_contig_range(), to use pageblock_order
alignment.
Signed-off-by: Zi Yan
---
include/linux/mmzone.h | 5 +
kernel/dma/contiguous.c | 2 +-
mm/cma.c| 6 ++
mm
From: Zi Yan
has_unmovable_pages() is only used in mm/page_isolation.c. Move it from
mm/page_alloc.c and make it static.
Signed-off-by: Zi Yan
---
include/linux/page-isolation.h | 2 -
mm/page_alloc.c| 119 -
mm/page_isolation.c
From: Zi Yan
Enable set_migratetype_isolate() to check specified sub-range for
unmovable pages during isolation. Page isolation is done
at max(MAX_ORDER_NR_PAEGS, pageblock_nr_pages) granularity, but not all
pages within that granularity are intended to be isolated. For example
From: Zi Yan
alloc_contig_range() worked at MAX_ORDER-1 granularity to avoid merging
pageblocks with different migratetypes. It might unnecessarily convert
extra pageblocks at the beginning and at the end of the range. Change
alloc_contig_range() to work at pageblock granularity.
It is done by
From: Zi Yan
Hi all,
This patchset tries to remove the MAX_ORDER-1 alignment requirement for CMA
and alloc_contig_range(). It prepares for my upcoming changes to make
MAX_ORDER adjustable at boot time[1]. It is on top of mmotm-2021-12-29-20-07.
Changelog from RFC
===
1. Dropped two irrelevant
From: Zi Yan
This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
It prepares for the upcoming removal of the MAX_ORDER-1 alignment
requirement for CMA and alloc_contig_range().
MIGRARTE_HIGHATOMIC should not merge with other migratetypes like
MIGRATE_ISOLATE and MIGRARTE_CMA
On 14 Jan 2022, at 8:44, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> alloc_contig_range() now only needs to be aligned to pageblock_order,
>> drop virtio_mem size requirement that it needs to be the max of
>> pageblock_orde
On 14 Jan 2022, at 8:38, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> Enable set_migratetype_isolate() to check specified sub-range for
>> unmovable pages during isolation. Page isolation is done
>> at max(MAX_ORDER_NR_PAEGS
On 13 Jan 2022, at 9:57, Zi Yan wrote:
> On 12 Jan 2022, at 6:01, David Hildenbrand wrote:
>
>> On 05.01.22 22:47, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> In isolate_migratepages_block(), a !PageLRU tail page can be encountered
>>> when the page is
On 12 Jan 2022, at 6:04, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> alloc_migration_target() is used by alloc_contig_range() and non-LRU
>> movable compound pages can be migrated. Current code does not allocate the
>> righ
On 12 Jan 2022, at 6:01, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> In isolate_migratepages_block(), a !PageLRU tail page can be encountered
>> when the page is larger than a pageblock. Use compound head page for the
>>
On 13 Jan 2022, at 7:28, David Hildenbrand wrote:
> On 13.01.22 12:36, Mike Rapoport wrote:
>> On Wed, Jan 12, 2022 at 11:54:49AM +0100, David Hildenbrand wrote:
>>> On 05.01.22 22:47, Zi Yan wrote:
>>>> From: Zi Yan
>>>>
>>>> This is done in
On 12 Jan 2022, at 5:54, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
>> It prepares for the upcoming removal of the MAX_ORDER-1 alignment
>> requireme
From: Zi Yan
CMA only requires pageblock alignment now. Change CMA alignment in
fadump too.
Signed-off-by: Zi Yan
---
arch/powerpc/include/asm/fadump-internal.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/fadump-internal.h
b/arch/powerpc
From: Zi Yan
alloc_contig_range() now only needs to be aligned to pageblock_order,
drop virtio_mem size requirement that it needs to be the max of
pageblock_order and MAX_ORDER.
Signed-off-by: Zi Yan
---
drivers/virtio/virtio_mem.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff
From: Zi Yan
Now alloc_contig_range() works at pageblock granularity. Change CMA
allocation, which uses alloc_contig_range(), to use pageblock_order
alignment.
Signed-off-by: Zi Yan
---
include/linux/mmzone.h | 5 +
kernel/dma/contiguous.c | 2 +-
mm/cma.c| 6 ++
mm
From: Zi Yan
Enable set_migratetype_isolate() to check specified sub-range for
unmovable pages during isolation. Page isolation is done
at max(MAX_ORDER_NR_PAEGS, pageblock_nr_pages) granularity, but not all
pages within that granularity are intended to be isolated. For example
From: Zi Yan
alloc_contig_range() worked at MAX_ORDER-1 granularity to avoid merging
pageblocks with different migratetypes. It might unnecessarily convert
extra pageblocks at the beginning and at the end of the range. Change
alloc_contig_range() to work at pageblock granularity.
It is done by
From: Zi Yan
This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
It prepares for the upcoming removal of the MAX_ORDER-1 alignment
requirement for CMA and alloc_contig_range().
MIGRARTE_HIGHATOMIC should not merge with other migratetypes like
MIGRATE_ISOLATE and MIGRARTE_CMA
From: Zi Yan
In isolate_migratepages_block(), a !PageLRU tail page can be encountered
when the page is larger than a pageblock. Use compound head page for the
checks inside and skip the entire compound page when isolation succeeds.
Signed-off-by: Zi Yan
---
mm/compaction.c | 10 +++---
1
From: Zi Yan
Hi all,
This patchset tries to remove the MAX_ORDER - 1 alignment requirement for CMA
and alloc_contig_range(). It prepares for my upcoming changes to make MAX_ORDER
adjustable at boot time[1]. It is on top of mmotm-2021-12-29-20-07.
The MAX_ORDER - 1 alignment requirement comes
From: Zi Yan
alloc_migration_target() is used by alloc_contig_range() and non-LRU
movable compound pages can be migrated. Current code does not allocate the
right page size for such pages. Check THP precisely using
is_transparent_huge() and add allocation support for non-LRU compound
pages
On 10 Dec 2021, at 13:36, David Hildenbrand wrote:
> On 10.12.21 00:04, Zi Yan wrote:
>> From: Zi Yan
>>
>> Hi all,
>
> Hi,
>
> thanks for working on that!
>
>>
>> This patchset tries to remove the MAX_ORDER - 1 alignment requirement for CMA
On 10 Dec 2021, at 2:53, Eric Ren wrote:
> Hi,
>
> On 2021/12/10 07:04, Zi Yan wrote:
>> From: Zi Yan
>>
>> alloc_migration_target() is used by alloc_contig_range() and non-LRU
>> movable compound pages can be migrated. Current code does not allocate the
>>
Hi Eric,
Thanks for looking into my patch.
On 10 Dec 2021, at 2:43, Eric Ren wrote:
> Hi,
>
> On 2021/12/10 07:04, Zi Yan wrote:
>> From: Zi Yan
>>
>> This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
>> It prepares for the upcoming rem
On 10 Dec 2021, at 2:30, Eric Ren wrote:
> Hi Zi Yan,
>
> On 2021/12/10 07:04, Zi Yan wrote:
>> From: Zi Yan
>>
>> Hi all,
>>
>> This patchset tries to remove the MAX_ORDER - 1 alignment requirement for CMA
>> and alloc_contig_range(). It prepares
From: Zi Yan
CMA only requires pageblock alignment now. Change CMA alignment in
fadump too.
Signed-off-by: Zi Yan
---
arch/powerpc/include/asm/fadump-internal.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/fadump-internal.h
b/arch/powerpc
From: Zi Yan
Hi all,
This patchset tries to remove the MAX_ORDER - 1 alignment requirement for CMA
and alloc_contig_range(). It prepares for my upcoming changes to make MAX_ORDER
adjustable at boot time[1].
The MAX_ORDER - 1 alignment requirement comes from that alloc_contig_range()
isolates
From: Zi Yan
In isolate_migratepages_block(), a !PageLRU tail page can be encountered
when the page is larger than a pageblock. Use compound head page for the
checks inside and skip the entire compound page when isolation succeeds.
Signed-off-by: Zi Yan
---
mm/compaction.c | 10 +++---
1
From: Zi Yan
Now alloc_contig_range() works at pageblock granularity. Change CMA
allocation, which uses alloc_contig_range(), to use pageblock_order
alignment.
Signed-off-by: Zi Yan
---
include/linux/mmzone.h | 5 +
kernel/dma/contiguous.c | 2 +-
mm/cma.c| 6 ++
mm
From: Zi Yan
alloc_contig_range() worked at MAX_ORDER-1 granularity to avoid merging
pageblocks with different migratetypes. It might unnecessarily convert
extra pageblocks at the beginning and at the end of the range. Change
alloc_contig_range() to work at pageblock granularity.
It is done by
From: Zi Yan
alloc_contig_range() now only needs to be aligned to pageblock_order,
drop virtio_mem size requirement that it needs to be the max of
pageblock_order and MAX_ORDER.
Signed-off-by: Zi Yan
---
drivers/virtio/virtio_mem.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions
From: Zi Yan
This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
It prepares for the upcoming removal of the MAX_ORDER-1 alignment
requirement for CMA and alloc_contig_range().
MIGRARTE_HIGHATOMIC should not merge with other migratetypes like
MIGRATE_ISOLATE and MIGRARTE_CMA
From: Zi Yan
alloc_migration_target() is used by alloc_contig_range() and non-LRU
movable compound pages can be migrated. Current code does not allocate the
right page size for such pages. Check THP precisely using
is_transparent_huge() and add allocation support for non-LRU compound
pages
On 23 Nov 2021, at 12:32, Vlastimil Babka wrote:
> On 11/23/21 17:35, Zi Yan wrote:
>> On 19 Nov 2021, at 10:15, Zi Yan wrote:
>>>>> From what my understanding, cma required alignment of
>>>>> max(MAX_ORDER - 1, pageblock_order), because
On 19 Nov 2021, at 10:15, Zi Yan wrote:
> On 19 Nov 2021, at 7:33, Vlastimil Babka wrote:
>
>> On 11/15/21 20:37, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> Hi David,
>>>
>>> You suggested to make alloc_contig_range() deal with pageblo
On 19 Nov 2021, at 7:33, Vlastimil Babka wrote:
> On 11/15/21 20:37, Zi Yan wrote:
>> From: Zi Yan
>>
>> Hi David,
>>
>> You suggested to make alloc_contig_range() deal with pageblock_order instead
>> of
>> MAX_ORDER - 1 and get rid of MAX_ORDER - 1
On 16 Nov 2021, at 3:58, David Hildenbrand wrote:
> On 15.11.21 20:37, Zi Yan wrote:
>> From: Zi Yan
>>
>> Hi David,
>
> Hi,
>
> thanks for looking into this.
>
>>
>> You suggested to make alloc_contig_range() deal with pageblock_order instead
>
From: Zi Yan
Pages are grouped in unit of pageblock_order for mobility. cma and
alloc_contig_range() uses pageblock for isolation and migration, so
aligning PFNs to pageblock_order is necessary. But the PFNs used in cma
and alloc_contig_range() were aligned to max(pageblock_order, MAX_ORDER-1
From: Zi Yan
alloc_contig_range() now only needs to be aligned to pageblock_order,
drop virtio_mem size requirement that it needs to be the max of
pageblock_order and MAX_ORDER.
Signed-off-by: Zi Yan
---
drivers/virtio/virtio_mem.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions
From: Zi Yan
CMA only requires pageblock alignment now. Change CMA alignment in
fadump too.
Signed-off-by: Zi Yan
---
arch/powerpc/include/asm/fadump-internal.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/fadump-internal.h
b/arch/powerpc
From: Zi Yan
Hi David,
You suggested to make alloc_contig_range() deal with pageblock_order instead of
MAX_ORDER - 1 and get rid of MAX_ORDER - 1 dependency in virtio_mem[1]. This
patchset is my attempt to achieve that. Please take a look and let me know if
I am doing it correctly or not
From: Zi Yan
CMA only requires pageblock alignment. Change fadump too.
Signed-off-by: Zi Yan
---
arch/powerpc/include/asm/fadump-internal.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/fadump-internal.h
b/arch/powerpc/include/asm/fadump
On 1 Oct 2020, at 4:22, Thomas Gleixner wrote:
> Yan,
>
> On Wed, Sep 30 2020 at 21:29, Zi Yan wrote:
>> I am running linux-next on my Dell R630 and the system crashed at boot
>> time. I bisected linux-next and got to your commit:
>>
>> x86/msi: Consolidate M
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