> -Original Message-
> From: Greg KH
> Sent: Wednesday, January 27, 2021 7:29 AM
> To: Chen, Mike Ximing
> Cc: linux-kernel@vger.kernel.org; a...@arndb.de; Williams, Dan J
> ; pierre-louis.boss...@linux.intel.com; Gage Eads
>
> Subject: Re: [PATCH v9 04/20] dlb
On Wed, Jan 27, 2021 at 11:08:17AM +0100, Łukasz Majczak wrote:
> Hi Mike,
>
> Actually I have a serial console attached (via servo device), but
> there is no output :( and also the reboot/crash is very fast/immediate
> after power on.
If you boot with earlyprintk=serial are the
987542182281...@build.alporthouse.com
I presume serial console is not an option, so if you could boot with
earlyprintk=vga and see if there is anything useful printed on the screen
it would be really helpful.
> Best regards
> Lukasz
--
Sincerely yours,
Mike.
See below.
Met vriendelijke groet / kind regards,
Mike Looijmans
System Expert
TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands
T: +31 (0) 499 33 69 69
E: mike.looijm...@topicproducts.com
W: www.topicproducts.com
Please consider the environment before printing
On 1/26/21 11:21 AM, Joao Martins wrote:
> On 1/26/21 6:08 PM, Mike Kravetz wrote:
>> On 1/25/21 12:57 PM, Joao Martins wrote:
>>>
>>> +static void record_subpages_vmas(struct page *page, struct vm_area_struct
>>> *vma,
>>> +
gt; 1 file changed, 1 insertion(+), 2 deletions(-)
Thanks,
Reviewed-by: Mike Kravetz
--
Mike Kravetz
>
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index cbf32d2..5e6a6e7 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -3367,8 +3367,7 @@ static unsigned in
On 1/26/21 4:07 PM, Jason Gunthorpe wrote:
> On Tue, Jan 26, 2021 at 01:21:46PM -0800, Mike Kravetz wrote:
>> On 1/26/21 11:21 AM, Joao Martins wrote:
>>> On 1/26/21 6:08 PM, Mike Kravetz wrote:
>>>> On 1/25/21 12:57 PM, Joao Martins wrote:
>>>>>
>&g
by: Miaohe Lin
> ---
> mm/hugetlb.c | 16 +---
> 1 file changed, 13 insertions(+), 3 deletions(-)
Thanks,
Reviewed-by: Mike Kravetz
--
Mike Kravetz
>
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index 777bc0e45bf3..53ea65d1c5ab 100644
> --- a/mm/hugetlb.c
&
ton
> Cc: Guo Ren
> Cc: Mike Rapoport
> Cc: Oscar Salvador
> Cc: Michal Hocko
> Cc: Wei Yang
> Signed-off-by: David Hildenbrand
> ---
>
> Not compile tested as documentation on how to get
> https://gitlab.com/c-sky/buildroot
> running, especially wit
so large that we do not guarantee that page++ pointer
* arithmetic will work across the entire page. We need something more
* specialized.
*/
static void __copy_gigantic_page(struct page *dst, struct page *src,
int nr_pages)
--
Mike Kravetz
> +
On Mon, Jan 25, 2021 at 09:13:59PM +, Chris Wilson wrote:
> Quoting Mike Rapoport (2021-01-25 21:04:56)
> > On Mon, Jan 25, 2021 at 08:34:34PM +, Chris Wilson wrote:
> > > Quoting Linus Torvalds (2021-01-25 01:06:40)
> > > > Mike Rapoport (3):
> > > .
On Tue, Jan 26, 2021 at 08:31:42AM +0100, Michal Hocko wrote:
> On Mon 25-01-21 23:38:17, Mike Rapoport wrote:
> > On Mon, Jan 25, 2021 at 05:54:51PM +0100, Michal Hocko wrote:
> > > On Thu 21-01-21 14:27:20, Mike Rapoport wrote:
> > > > From: Mike Rapoport
&
On Tue, Jan 26, 2021 at 08:16:14AM +0100, Michal Hocko wrote:
> On Mon 25-01-21 23:36:18, Mike Rapoport wrote:
> > On Mon, Jan 25, 2021 at 06:01:22PM +0100, Michal Hocko wrote:
> > > On Thu 21-01-21 14:27:18, Mike Rapoport wrote:
> > > > From: Mike Rapopo
D_OUT_HIGH, this
removes the spike and also removes a line of code since the signal
is already high.
Signed-off-by: Mike Looijmans
---
drivers/net/phy/mdio_bus.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 2b
On Mon, Jan 25, 2021 at 09:46:19PM +, Chris Wilson wrote:
> Quoting Mike Rapoport (2021-01-25 21:33:48)
> > On Mon, Jan 25, 2021 at 12:49:39PM -0800, Linus Torvalds wrote:
> > > On Mon, Jan 25, 2021 at 12:35 PM Chris Wilson
> > > wrote:
> > > >
> &
Hi Leo,
On Sat, 23 Jan 2021 at 15:23, Leo Yan wrote:
>
> Hi Mike,
>
> On Tue, Jan 19, 2021 at 06:01:10PM +, Mike Leach wrote:
>
> [...]
>
> > +/*
> > + * Read a single cpu parameter block from the auxtrace_info priv block.
> > + *
> > + * For
+++---
> 3 files changed, 29 insertions(+), 22 deletions(-)
Thanks. Nice straight forward improvement.
Reviewed-by: Mike Kravetz
--
Mike Kravetz
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index a5d618d08506..0d793486822b 100644
> --- a/include/li
On Tue, Jan 26, 2021 at 10:00:13AM +0100, Michal Hocko wrote:
> On Tue 26-01-21 10:33:11, Mike Rapoport wrote:
> > On Tue, Jan 26, 2021 at 08:16:14AM +0100, Michal Hocko wrote:
> > > On Mon 25-01-21 23:36:18, Mike Rapoport wrote:
> > > > On Mon, Jan 25, 2021 at 06:01:
lb page on the free list with a count of 1. There is no check in the
enqueue code. When we dequeue the page, set_page_refcounted() is used to
set the count to 1 without looking at the current value. And, all the other
VM_DEBUG macros are off so we mostly do not notice the bug.
Thanks again,
Reviewed-by: Mike Kravetz
--
Mike Kravetz
> }
> free:
>
The BMI088 is a combined module with both accelerometer and gyroscope.
This adds the accelerometer driver support for the SPI interface.
The gyroscope part is already supported by the BMG160 driver.
Signed-off-by: Mike Looijmans
---
Changes in v8:
include order asm/ after linux/
Suspend/resume
This adds the device-tree bindings for the Bosch Sensortec BMI088 IMU,
the accelerometer part.
Signed-off-by: Mike Looijmans
---
Changes in v8:
Add spi-max-frequency: true
Changes in v7:
Add additionalProperties
Change bmi088_accel to bmi088-accel
Add interrupt-names and adjust description
from there ...
>
> Yeah, you are right. So I tend to trigger OOM to kill other processes to
> reclaim some memory when we allocate memory fails.
IIUC, even non-gigantic hugetlb pages can exist in CMA. They can be migrated
out of CMA if needed (except free pages in the pool, but that is a separate
issue David H already noted in another thread).
When we first started discussing this patch set, one suggestion was to force
hugetlb pool pages to be allocated at boot time and never permit them to be
freed back to the buddy allocator. A primary reason for the suggestion was
to avoid this issue of needing to allocate memory when freeing a hugetlb page
to buddy. IMO, that would be an unreasonable restriction for many existing
hugetlb use cases.
A simple thought is that we simply fail the 'freeing hugetlb page to buddy'
if we can not allocate the required vmemmap pages. However, as David R says
freeing hugetlb pages to buddy is a reasonable way to free up memory in oom
situations. However, failing the operation 'might' be better than looping
forever trying to allocate the pages needed? As mentioned in the previous
patch, it would be better to use GFP_ATOMIC to at least dip into reserves if
we can.
I think using pages of the hugetlb for vmemmap to cover pages of the hugetlb
is the only way we can guarantee success of freeing a hugetlb page to buddy.
However, this should only only be used when there is no other option and could
result in vmemmap pages residing in CMA or ZONE_MOVABLE. I'm not sure how
much better this is than failing the free to buddy operation.
I don't have a solution. Just wanted to share some thoughts.
BTW, just thought of something else. Consider offlining a memory section that
contains a free hugetlb page. The offline code will try to disolve the hugetlb
page (free to buddy). So, vmemmap pages will need to be allocated. We will
try to allocate vmemap pages on the same node as the hugetlb page. But, if
this memory section is the last of the node all the pages will have been
isolated and no allocations will succeed. Is that a possible scenario, or am
I just having too many negative thoughts?
--
Mike Kravetz
On Mon, Jan 25, 2021 at 12:49:39PM -0800, Linus Torvalds wrote:
> On Mon, Jan 25, 2021 at 12:35 PM Chris Wilson
> wrote:
> >
> > Quoting Linus Torvalds (2021-01-25 01:06:40)
> > > Mike Rapoport (3):
> > ...
> > > mm: fix initialization of struct
n Corbet
> Cc: linux-...@vger.kernel.org
> Cc: linux...@kvack.org
> Cc: Andrew Morton
> Cc: Mike Kravetz
> ---
> v2: rebase & resend
>
> Documentation/admin-guide/kernel-parameters.txt |8
> 1 file changed, 4 insertions(+), 4 deletions(-)
On Mon, Jan 25, 2021 at 09:18:04AM -0800, Shakeel Butt wrote:
> On Mon, Jan 25, 2021 at 8:20 AM Matthew Wilcox wrote:
> >
> > On Thu, Jan 21, 2021 at 02:27:20PM +0200, Mike Rapoport wrote:
> > > From: Mike Rapoport
> > >
> > > Account memory cons
On Mon, Jan 25, 2021 at 05:54:51PM +0100, Michal Hocko wrote:
> On Thu 21-01-21 14:27:20, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Account memory consumed by secretmem to memcg. The accounting is updated
> > when the memory is actually allocated and free
On Mon, Jan 25, 2021 at 06:01:22PM +0100, Michal Hocko wrote:
> On Thu 21-01-21 14:27:18, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Introduce "memfd_secret" system call with the ability to create memory
> > areas visible only in the context
On Mon, Jan 25, 2021 at 08:34:34PM +, Chris Wilson wrote:
> Quoting Linus Torvalds (2021-01-25 01:06:40)
> > Mike Rapoport (3):
> ...
> > mm: fix initialization of struct page for holes in memory layout
>
> We have half a dozen or so different machines in CI tha
On Mon, Jan 25, 2021 at 03:59:11PM +0100, Borislav Petkov wrote:
> On Fri, Jan 15, 2021 at 10:32:54AM +0200, Mike Rapoport wrote:
> > + trim_low_memory_range();
>
> Btw, you can get rid of that one too:
>
> /*
> * Here we put platform-specific memory range workarounds
On Mon, Jan 25, 2021 at 03:50:41PM +0100, Borislav Petkov wrote:
> On Fri, Jan 15, 2021 at 10:32:54AM +0200, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > The early reservations of memory areas used by the firmware, bootloader,
> > kernel text and data
See below
Met vriendelijke groet / kind regards,
Mike Looijmans
System Expert
TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands
T: +31 (0) 499 33 69 69
E: mike.looijm...@topicproducts.com
W: www.topicproducts.com
Please consider the environment before printing
See below
Met vriendelijke groet / kind regards,
Mike Looijmans
System Expert
TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands
T: +31 (0) 499 33 69 69
E: mike.looijm...@topicproducts.com
W: www.topicproducts.com
Please consider the environment before printing
performance for normal hotplug memory as well.
> >
> > Cc: Catalin Marinas
> > Cc: Will Deacon
> > Cc: Ard Biesheuvel
> > Cc: Robin Murphy
> > Cc: linux-arm-ker...@lists.infradead.org
> > Cc: linux-kernel@vger.kernel.org
> > Fixes: 73b20c84d42d (
在 2021/1/20 18:27, Paraschiv, Andra-Irina 写道:
>
>
> On 19/01/2021 05:30, Longpeng(Mike) wrote:
>> According the PCI spec:
>> Bus Master Enable – Controls the ability of a PCI Express
>> Endpoint to issue Memory and I/O Read/Write Requests, and
>> the
On Sat, Jan 23, 2021 at 06:09:11PM -0800, Andrew Morton wrote:
> On Fri, 22 Jan 2021 01:37:14 -0300 Thiago Jung Bauermann
> wrote:
>
> > Mike Rapoport writes:
> >
> > > > Signed-off-by: Roman Gushchin
> > >
> > > Reviewed-by: Mike Rapopor
On Fri, Jan 22, 2021 at 08:12:30PM -0800, Palmer Dabbelt wrote:
> On Wed, 20 Jan 2021 10:06:04 PST (-0800), r...@kernel.org wrote:
> > From: Mike Rapoport
> >
> > ARCH_HAS_SET_DIRECT_MAP and ARCH_HAS_SET_MEMORY configuration options have
> > no meaning
_each_entry_safe(page, next, list, lru) {
> + list_del(>lru);
> + free_vmemmap_page(page);
> + }
> +}
> +
> +static void vmemmap_remap_pte(pte_t *pte, unsigned long addr,
> + struct vmemmap_remap_walk *walk)
> +{
&g
On 1/21/21 10:53 PM, Miaohe Lin wrote:
> Hi:
> On 2021/1/20 9:30, Mike Kravetz wrote:
>> Use the new hugetlb page specific flag HPageMigratable to replace the
>> page_huge_active interfaces. By it's name, page_huge_active implied
>> that a huge page was on t
Use new hugetlb specific HPageFreed flag to replace the
PageHugeFreed interfaces.
Signed-off-by: Mike Kravetz
Reviewed-by: Oscar Salvador
Reviewed-by: Muchun Song
---
include/linux/hugetlb.h | 3 +++
mm/hugetlb.c| 23 ---
2 files changed, 7 insertions(+), 19
information will happen in subsequent patches.
Signed-off-by: Mike Kravetz
---
fs/hugetlbfs/inode.c| 12 ++--
include/linux/hugetlb.h | 68 +
mm/hugetlb.c| 48 +++--
3 files changed, 96 insertions(+), 32 deletions
race with
code freeing the page. The extra check in page_huge_active shortened the
race window, but did not prevent the race. Offline code calling
scan_movable_pages already deals with these races, so removing the check
is acceptable. Add comment to racy code.
Signed-off-by: Mike Kravetz
will not be isolated and no attempt will be made to migrate. We should
never get to unmap_and_move_huge_page for a page where migration is not
supported, so throw a warning if we do.
Signed-off-by: Mike Kravetz
---
fs/hugetlbfs/inode.c| 2 +-
include/linux/hugetlb.h | 9 +
mm/hugetlb.c
v5.11-rc4-mmotm-2021-01-21-20-07
Mike Kravetz (5):
hugetlb: use page.private for hugetlb specific page flags
hugetlb: convert page_huge_active() HPageMigratable flag
hugetlb: only set HPageMigratable for migratable hstates
hugetlb: convert PageHugeTemporary() to HPageTemporary flag
hugetlb
.
Signed-off-by: Mike Kravetz
Reviewed-by: Oscar Salvador
---
include/linux/hugetlb.h | 6 ++
mm/hugetlb.c| 36 +++-
2 files changed, 13 insertions(+), 29 deletions(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index cd1960541f2a
Miaohe Lin
> ---
> fs/hugetlbfs/inode.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Thanks,
Reviewed-by: Mike Kravetz
--
Mike Kravetz
>
> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
> index 25c1857ff45d..c87894b221da 100644
> --- a/fs/hugetlbfs/i
multiple iterations. This
process is finite since software cannot enqueue new events to the DLB's
(finite) on-device storage.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_hw_types.h | 46 +++
drivers/misc
the operation asynchronously.
To that end, the driver uses a workqueue that periodically checks whether
any outstanding operations can be completed. This workqueue function is
only scheduled when there is at least one outstanding map/unmap operation.
Signed-off-by: Gage Eads
Signed-off-by: Mike
e "dynamic"
operation, when traffic is flowing in the device, will be added in a later
commit.)
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Björn Töpel
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_resource.c | 144 +++-
1 file cha
Adds the "dynamic" map procedure and register operations. If a queue map
is requested after the domain is started, the driver must disable the
requested queue and wait for it to quiesce before mapping it to the
requested port.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
ap a
queue and then immediately requests to unmap it -- the driver will coalesce
or cancel outstanding operations.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Björn Töpel
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_resource.c | 433 +++-
1 fi
).
Introduce dlb_bitmap_* functions, a thin convenience layer wrapping the
Linux bitmap interfaces, used by the bitmaps in the dlb hardware types.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/Makefile | 2
in the patch.
Add a DLB entry to the MAINTAINERS file.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
Documentation/misc-devices/dlb.rst | 259 +++
Documentation/misc-devices/index.rst | 1
blocks
- Don't break ioctl ABI when introducing new commands
- Remove indirect pointers from ioctl data structures
- Remove the get-sched-domain-fd ioctl command
Mike Ximing Chen (20):
dlb: add skeleton for DLB driver
dlb: initialize device
dlb: add resource and device initialization
dlb: add
function (PF, as implemented here) or virtual
function/device (support to be added later).
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/Makefile | 1 +
drivers/misc/dlb/dlb_hw_types.h | 23
-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
.../userspace-api/ioctl/ioctl-number.rst | 1 +
drivers/misc/dlb/Makefile | 2 +-
drivers/misc/dlb/dlb_bitmap.h | 32
drivers/misc/dlb
ded in subsequent commits.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_bitmap.h | 74
drivers/misc/dlb/dlb_ioctl.c| 36 +-
drivers/misc/dlb/dlb_main.c | 68
drivers/misc/dlb/dlb_main.h |
e and wait for
it to quiesce before mapping it to the requested port.
Add the code to drain unmapped queues during domain reset. This consists of
mapping a port to the queue, then calling the function to drain a mapped
queue.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Björn Töpel
Add operation to reset a domain's resource's software state when its
reference count reaches zero, and re-inserts those resources in their
respective available-resources linked lists, for use by future scheduling
domains.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_hw_types.h | 27 ++
drivers/misc/dlb/dlb_ioctl.c| 63
drivers/misc/dlb/dlb_main.c | 2 +
drivers/misc/dlb/dlb_main.h | 17 +
drivers/misc/dlb/dlb_pf_ops.c | 36
) at that time. Support for these cases will be added in
subsequent commits.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_regs.h | 3527 ++-
drivers/misc/dlb/dlb_resource.c
-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_main.c | 101 +-
drivers/misc/dlb/dlb_pf_ops.c | 8 +++
2 files changed, 108 insertions(+), 1 deletion(-)
diff --git a/drivers
ll mode". This (device-wide) mode is selected by the driver;
to determine the mode at run time, the driver provides an ioctl for
user-space software to query which mode the driver has configured. In this
way, the policy of which mode to use is decoupled from user-space software.
Signed-off-by: Ga
they are re-assigned to a new
scheduling domain in the future and re-enabled.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_resource.c | 448 +++-
1 file changed, 443
a single inode that is shared with other kernel
components -- calling unmap_mapping_range() on that shared inode would
likely break the kernel.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Magnus Karlsson
Reviewed-by: Dan Williams
---
drivers/misc/dlb/Makefile
the DLB device to start load-balancing operations.
It corresponds to rte_event_dev_start() function in DPDK' eventdev library.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Björn Töpel
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_ioctl.c| 3 +
drivers/misc
ns support rte_event_port_link(), rte_event_port_unlink()
and rte_event_port_unlinks_in_progress() functions of DPDK's eventdev
library.
Signed-off-by: Gage Eads
Signed-off-by: Mike Ximing Chen
Reviewed-by: Björn Töpel
Reviewed-by: Dan Williams
---
drivers/misc/dlb/dlb_ioctl.c| 9 +
driver
gt; mm: rename memmap_init() and memmap_init_zone()
> mm: simplify parater of function memmap_init_zone()
> mm: simplify parameter of setup_usemap()
> mm: remove unneeded local variable in free_area_init_core
For the series:
Reviewed-by: Mike Rapoport
>
> arch/ia64/
typo in comment of memblock_phys_alloc_try_nid()
Levi Yun (1):
mm/memblock: Fix typo in comment of memblock_phys_alloc_try_nid()
mm/memblock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--
Sincerely yours,
Mike.
On 1/21/21 5:42 PM, Miaohe Lin wrote:
> Hi:
> On 2021/1/22 3:00, Mike Kravetz wrote:
>> On 1/20/21 1:23 AM, Miaohe Lin wrote:
>>> The calculation 1U << (h->order + PAGE_SHIFT - 10) is actually equal to
>>> (PAGE_SHIFT << (h->order)) >&
dd a comment offered by Mike Kravetz to explain this.
>
> Reviewed-by: David Hildenbrand
> Signed-off-by: Miaohe Lin
> Cc: Mike Kravetz
> ---
> fs/hugetlbfs/inode.c | 12 +---
> 1 file changed, 9 insertions(+), 3 deletions(-)
Reviewed-by: Mike Kravetz
>
>
the kernel, size in KB is often calculated as (size << (PAGE_SHIFT - 10)).
If you change the calculation in the hugetlb code to be:
huge_page_size(h) << (PAGE_SHIFT - 10)
my compiler will actually reduce the size of the routine by one instruction.
--
Mike Kravetz
> return mnt;
> }
>
>
This adds the device-tree bindings for the Bosch Sensortec BMI088 IMU,
the accelerometer part.
Signed-off-by: Mike Looijmans
---
Changes in v7:
Add additionalProperties
Change bmi088_accel to bmi088-accel
Add interrupt-names and adjust description
Changes in v6:
I't been almost a year since
The BMI088 is a combined module with both accelerometer and gyroscope.
This adds the accelerometer driver support for the SPI interface.
The gyroscope part is already supported by the BMG160 driver.
Signed-off-by: Mike Looijmans
---
Changes in v7:
Change bmi088_accel to bmi088-accel
Order
quot;crash note regs" are a key piece of data used by crash dump debuggers
to provide a reliable backtrace of running processors.'
Signed-off-by: Mike Travis
Signed-off-by: Georges Aureau
Reviewed-by: Steve Wahl
---
arch/x86/platform/uv/uv_nmi.c | 30 +++---
these constraints, lets just reduce the section size to 128MB for 4K
> and 16K base page size configs, and to 512MB for 64K base page size config.
>
> Signed-off-by: Sudarshan Rajagopalan
> Suggested-by: Anshuman Khandual
> Suggested-by: David Hildenbrand
> Cc: Catalin Marinas
&
From: Mike Rapoport
Hi,
@Andrew, this is based on v5.11-rc4-mmots-2021-01-19-13-54 with secretmem
patches dropped from there, I can rebase whatever way you prefer.
This is an implementation of "secret" mappings backed by a file descriptor.
The file descriptor backing secret memor
From: Mike Rapoport
The underlying implementations of set_direct_map_invalid_noflush() and
set_direct_map_default_noflush() allow updating multiple contiguous pages
at once.
Add numpages parameter to set_direct_map_*_noflush() to expose this ability
with these APIs.
Signed-off-by: Mike
From: Mike Rapoport
Introduce "memfd_secret" system call with the ability to create memory
areas visible only in the context of the owning process and not mapped not
only to other processes but in the kernel page tables as well.
The user will create a file descriptor using the me
From: Mike Rapoport
On arm64, set_direct_map_*() functions may return 0 without actually
changing the linear map. This behaviour can be controlled using kernel
parameters, so we need a way to determine at runtime whether calls to
set_direct_map_invalid_noflush
From: Mike Rapoport
It is unsafe to allow saving of secretmem areas to the hibernation snapshot
as they would be visible after the resume and this essentially will defeat
the purpose of secret memory mappings.
Prevent hibernation whenever there are active secret memory users.
Signed-off
From: Mike Rapoport
ARCH_HAS_SET_DIRECT_MAP and ARCH_HAS_SET_MEMORY configuration options have
no meaning when CONFIG_MMU is disabled and there is no point to enable them
for the nommu case.
Add an explicit dependency on MMU for these options.
Signed-off-by: Mike Rapoport
Reported-by: kernel
From: Mike Rapoport
Wire up memfd_secret system call on architectures that define
ARCH_HAS_SET_DIRECT_MAP, namely arm64, risc-v and x86.
Signed-off-by: Mike Rapoport
Acked-by: Palmer Dabbelt
Acked-by: Arnd Bergmann
Cc: Alexander Viro
Cc: Andy Lutomirski
Cc: Borislav Petkov
Cc: Catalin
From: Mike Rapoport
The test verifies that file descriptor created with memfd_secret does
not allow read/write operations, that secret memory mappings respect
RLIMIT_MEMLOCK and that remote accesses with process_vm_read() and
ptrace() to the secret memory fail.
Signed-off-by: Mike Rapoport
Cc
From: Mike Rapoport
Account memory consumed by secretmem to memcg. The accounting is updated
when the memory is actually allocated and freed.
Signed-off-by: Mike Rapoport
Acked-by: Roman Gushchin
Reviewed-by: Shakeel Butt
Cc: Alexander Viro
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc
From: Mike Rapoport
Removing a PAGE_SIZE page from the direct map every time such page is
allocated for a secret memory mapping will cause severe fragmentation of
the direct map. This fragmentation can be reduced by using PMD-size pages
as a pool for small pages for secret memory mappings.
Add
From: Mike Rapoport
It will be used by the upcoming secret memory implementation.
Signed-off-by: Mike Rapoport
Cc: Alexander Viro
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc: Borislav Petkov
Cc: Catalin Marinas
Cc: Christopher Lameter
Cc: Dan Williams
Cc: Dave Hansen
Cc: David Hildenbrand
From: Mike Rapoport
The definition of PMD_PAGE_ORDER denoting the number of base pages in the
second-level leaf page is already used by DAX and maybe handy in other
cases as well.
Several architectures already have definition of PMD_ORDER as the size of
second level page table, so to avoid
Comments inlined below.
Met vriendelijke groet / kind regards,
Mike Looijmans
System Expert
TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands
T: +31 (0) 499 33 69 69
E: mike.looijm...@topicproducts.com
W: www.topicproducts.com
Please consider the environment before
Comments inlined below.
Met vriendelijke groet / kind regards,
Mike Looijmans
System Expert
TOPIC Embedded Products B.V.
Materiaalweg 4, 5681 RJ Best
The Netherlands
T: +31 (0) 499 33 69 69
E: mike.looijm...@topicproducts.com
W: www.topicproducts.com
Please consider the environment before
start_pfn = clamp(start_pfn, range_start_pfn,
> > range_end_pfn);
> > 6268 end_pfn = clamp(end_pfn, range_start_pfn,
> > range_end_pfn);
> > 6269
> > 6270 if (end_pfn > start_pfn) {
> > 6271 size = end_pfn - start_pfn;
> > 6272 memmap_init_range(size, nid, zone,
> > start_pfn, range_end_pfn,
> > 6273 MEMINIT_EARLY, NULL,
> > MIGRATE_MOVABLE);
> > 6274 }
> > 6275 }
> > 6276 }
> > 6277
> >
> > ---
> > 0-DAY CI Kernel Test Service, Intel Corporation
> > https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
>
>
--
Sincerely yours,
Mike.
On 1/20/21 2:00 AM, Oscar Salvador wrote:
> On Wed, Jan 20, 2021 at 10:59:05AM +0100, Oscar Salvador wrote:
>> On Tue, Jan 19, 2021 at 05:30:46PM -0800, Mike Kravetz wrote:
>>> Use the new hugetlb page specific flag HPageMigratable to replace the
>>> page_huge_activ
On Wed, Jan 20, 2021 at 08:35:04PM +, Matthew Wilcox wrote:
> On Wed, Jan 20, 2021 at 08:06:07PM +0200, Mike Rapoport wrote:
> > +static struct page *secretmem_alloc_page(gfp_t gfp)
> > +{
> > + /*
> > +* FIXME: use a cache of large pages to reduce the direct m
On 1/20/21 2:09 AM, Oscar Salvador wrote:
> On Tue, Jan 19, 2021 at 05:30:48PM -0800, Mike Kravetz wrote:
>> Use new hugetlb specific HPageTemporary flag to replace the
>> PageHugeTemporary() interfaces.
>>
>> Signed-off-by: Mike Kravetz
>
> I would have add
From: Mike Rapoport
It will be used by the upcoming secret memory implementation.
Signed-off-by: Mike Rapoport
Cc: Alexander Viro
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc: Borislav Petkov
Cc: Catalin Marinas
Cc: Christopher Lameter
Cc: Dan Williams
Cc: Dave Hansen
Cc: David Hildenbrand
On 1/20/21 1:30 AM, Oscar Salvador wrote:
> On Tue, Jan 19, 2021 at 05:30:45PM -0800, Mike Kravetz wrote:
>> + * Macros to create test, set and clear function definitions for
>> + * hugetlb specific page flags.
>> + */
>> +#ifdef CONFIG_HUGETLB_PAGE
>> +#d
From: Mike Rapoport
The definition of PMD_PAGE_ORDER denoting the number of base pages in the
second-level leaf page is already used by DAX and maybe handy in other
cases as well.
Several architectures already have definition of PMD_ORDER as the size of
second level page table, so to avoid
From: Mike Rapoport
Account memory consumed by secretmem to memcg. The accounting is updated
when the memory is actually allocated and freed.
Signed-off-by: Mike Rapoport
Acked-by: Roman Gushchin
Reviewed-by: Shakeel Butt
Cc: Alexander Viro
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc
From: Mike Rapoport
Removing a PAGE_SIZE page from the direct map every time such page is
allocated for a secret memory mapping will cause severe fragmentation of
the direct map. This fragmentation can be reduced by using PMD-size pages
as a pool for small pages for secret memory mappings.
Add
From: Mike Rapoport
ARCH_HAS_SET_DIRECT_MAP and ARCH_HAS_SET_MEMORY configuration options have
no meaning when CONFIG_MMU is disabled and there is no point to enable them
for the nommu case.
Add an explicit dependency on MMU for these options.
Signed-off-by: Mike Rapoport
Reported-by: kernel
From: Mike Rapoport
Introduce "memfd_secret" system call with the ability to create memory
areas visible only in the context of the owning process and not mapped not
only to other processes but in the kernel page tables as well.
The user will create a file descriptor using the me
901 - 1000 of 19093 matches
Mail list logo
