This patch series update memmap on memory feature to fall back to
memmap allocation outside the memory block if the alignment rules are
not met. This makes the feature more useful on architectures like
ppc64 where alignment rules are different with 64K page size.
This patch series is dependent on
Instead of adding menu entry with all supported architectures, add
mm/Kconfig variable and select the same from supported architectures.
No functional change in this patch.
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
arch/arm64/Kconfig | 4 +---
arch/x86/Kconfig | 4 +---
Some architectures would want different restrictions. Hence add an
architecture-specific override.
The PMD_SIZE check is moved there.
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
mm/memory_hotplug.c | 24
1 file changed, 20 insertions(+), 4 deletions
Currently, memmap_on_memory feature is only supported with memory block
sizes that result in vmemmap pages covering full page blocks. This is
because memory onlining/offlining code requires applicable ranges to be
pageblock-aligned, for example, to set the migratetypes properly.
This patch helps t
If not supported, fallback to not using memap on memmory. This avoids
the need for callers to do the fallback.
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
drivers/acpi/acpi_memhotplug.c | 3 +--
include/linux/memory_hotplug.h | 3 ++-
mm/memory_hotplug.c| 13 ++
On Wed, Jul 26, 2023 at 05:02:23PM +0200, Herve Codina wrote:
> A framer can be connected to the QMC HDLC.
> If present, this framer is the interface between the TDM used by the QMC
> HDLC and the E1/T1 line.
> The QMC HDLC can use this framer to get information about the line and
> configure the l
On Wed, Jul 26, 2023 at 05:02:01PM +0200, Herve Codina wrote:
> The QMC (QUICC mutichannel controller) is a controller present in some
> PowerQUICC SoC such as MPC885.
> The QMC HDLC uses the QMC controller to transfer HDLC data.
>
> Signed-off-by: Herve Codina
> ---
> .../devicetree/bindings/ne
With memmap on memory, some architecture needs more details w.r.t altmap
such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
computing them again when we remove a memory block, embed vmem_altmap
details in struct memory_block if we are using memmap on memory block
feature.
No functi
Radix vmemmap mapping can map things correctly at the PMD level or PTE
level based on different device boundary checks. Hence we skip the
restrictions w.r.t vmemmap size to be multiple of PMD_SIZE. This also
makes the feature widely useful because to use PMD_SIZE vmemmap area we
require a memory bl
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
mm/memory_hotplug.c | 35 +++
1 file changed, 19 insertions(+), 16 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index aa8724bd1d53..7c877756b363 100644
--- a/mm/memory_hotplug.
Hi Conor,
On Thu, 27 Jul 2023 09:19:59 +0100
Conor Dooley wrote:
> On Wed, Jul 26, 2023 at 05:02:01PM +0200, Herve Codina wrote:
> > The QMC (QUICC mutichannel controller) is a controller present in some
> > PowerQUICC SoC such as MPC885.
> > The QMC HDLC uses the QMC controller to transfer HDLC
Hi Conor,
On Thu, 27 Jul 2023 09:12:01 +0100
Conor Dooley wrote:
> On Wed, Jul 26, 2023 at 05:02:23PM +0200, Herve Codina wrote:
> > A framer can be connected to the QMC HDLC.
> > If present, this framer is the interface between the TDM used by the QMC
> > HDLC and the E1/T1 line.
> > The QMC HD
On Wed, 26 Jul 2023, Herve Codina wrote:
> The loop searching for a matching device based on its compatible
> string is aborted when a matching disabled device is found.
> This abort avoid to add devices as soon as one disabled device
> is found.
>
> Continue searching for an other device instead
On Thu 27-07-23 13:32:29, Aneesh Kumar K.V wrote:
[...]
> + if (mode == MEMMAP_ON_MEMORY_FORCE) {
> + unsigned long memmap_pages =
> memory_block_memmap_on_memory_pages();
> +
> + pr_info_once("Memory hotplug will reserve %ld pages in each
> memory block\n",
> +
On Thu 27-07-23 13:32:31, Aneesh Kumar K.V wrote:
> With memmap on memory, some architecture needs more details w.r.t altmap
> such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
> computing them again when we remove a memory block, embed vmem_altmap
> details in struct memory_block
ENOCHANGELOG. Considering this is a user visible change then it is
really due.
On Thu 27-07-23 13:32:32, Aneesh Kumar K.V wrote:
> Acked-by: David Hildenbrand
> Signed-off-by: Aneesh Kumar K.V
> ---
> mm/memory_hotplug.c | 35 +++
> 1 file changed, 19 insertions(
On 7/27/23 2:53 PM, Michal Hocko wrote:
> On Thu 27-07-23 13:32:29, Aneesh Kumar K.V wrote:
> [...]
>> +if (mode == MEMMAP_ON_MEMORY_FORCE) {
>> +unsigned long memmap_pages =
>> memory_block_memmap_on_memory_pages();
>> +
>> +pr_info_once("Memory hotplug will reserve %l
On 7/27/23 2:55 PM, Michal Hocko wrote:
> On Thu 27-07-23 13:32:31, Aneesh Kumar K.V wrote:
>> With memmap on memory, some architecture needs more details w.r.t altmap
>> such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
>> computing them again when we remove a memory block, embed
On Thu, Jul 27, 2023 at 11:09:48AM +0200, Herve Codina wrote:
> On Thu, 27 Jul 2023 09:19:59 +0100
> Conor Dooley wrote:
> > On Wed, Jul 26, 2023 at 05:02:01PM +0200, Herve Codina wrote:
> If needed, I can change to:
> title: QMC (QUICC Multichannel Controller) HDLC
> Let me known if it is bett
Hi Lee,
On Thu, 27 Jul 2023 10:22:09 +0100
Lee Jones wrote:
> On Wed, 26 Jul 2023, Herve Codina wrote:
>
> > The loop searching for a matching device based on its compatible
> > string is aborted when a matching disabled device is found.
> > This abort avoid to add devices as soon as one disabl
On Wed, Jul 26, 2023 at 08:57:10PM -0700, Eric Biggers wrote:
> On Tue, Jul 25, 2023 at 04:58:34PM +0100, David Howells wrote:
> > Rather than adding a fchmodat2() syscall, should we add a "set_file_attrs()"
> > syscall that takes a mask and allows you to set a bunch of stuff all in one
> > go? Ba
Hi Conor,
On Thu, 27 Jul 2023 10:53:15 +0100
Conor Dooley wrote:
> On Thu, Jul 27, 2023 at 11:09:48AM +0200, Herve Codina wrote:
> > On Thu, 27 Jul 2023 09:19:59 +0100
> > Conor Dooley wrote:
> > > On Wed, Jul 26, 2023 at 05:02:01PM +0200, Herve Codina wrote:
>
> > If needed, I can change
On Thu 27-07-23 14:57:17, Aneesh Kumar K V wrote:
> On 7/27/23 2:53 PM, Michal Hocko wrote:
> > On Thu 27-07-23 13:32:29, Aneesh Kumar K.V wrote:
> > [...]
> >> + if (mode == MEMMAP_ON_MEMORY_FORCE) {
> >> + unsigned long memmap_pages =
> >> memory_block_memmap_on_memory_pages();
> >> +
On Thu 27-07-23 15:02:12, Aneesh Kumar K V wrote:
> On 7/27/23 2:55 PM, Michal Hocko wrote:
> > On Thu 27-07-23 13:32:31, Aneesh Kumar K.V wrote:
> >> With memmap on memory, some architecture needs more details w.r.t altmap
> >> such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
> >
+ /*
+* Now that we are tracking alloc and free correctly
+* we can add check to verify altmap free pages.
+*/
Better remove the history lesson from the comment.
"Verify that all vmemmap pages have actually been freed."
+ if (altmap) {
+ WA
On 27.07.23 10:02, Aneesh Kumar K.V wrote:
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
mm/memory_hotplug.c | 35 +++
1 file changed, 19 insertions(+), 16 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index aa8724bd1d5
From: Aleksa Sarai
> Sent: 25 July 2023 17:36
...
> We almost certainly want to support AT_EMPTY_PATH at the same time.
> Otherwise userspace will still need to go through /proc when trying to
> chmod a file handle they have.
That can't be allowed.
Just because a process has a file open and write
> > I think it'd be much neater to do the conversion of AT_ flags here and
> > pass 0 as a flags argument for all of the wrappers (this is how most of
> > the other xyz(), fxyz(), fxyzat() syscall wrappers are done IIRC).
I've fixed that up in-tree.
On Wed, Jul 26, 2023 at 02:43:41AM +1000, Aleksa Sarai wrote:
> On 2023-07-11, Alexey Gladkov wrote:
> > From: Palmer Dabbelt
> >
> > This registers the new fchmodat2 syscall in most places as nuber 452,
> > with alpha being the exception where it's 562. I found all these sites
> > by grepping
Hi Sean,
...
> @@ -5134,6 +5167,16 @@ static long kvm_vm_ioctl(struct file *filp,
> case KVM_GET_STATS_FD:
> r = kvm_vm_ioctl_get_stats_fd(kvm);
> break;
> + case KVM_CREATE_GUEST_MEMFD: {
> + struct kvm_create_guest_memfd guest_memfd;
From: Arnd Bergmann
This function has a __weak definition and an override that is only used on
freescale powerpc chips. The powerpc definition however does not see the
declaration that is in a .c file:
arch/powerpc/kernel/dma-mask.c:7:6: error: no previous prototype for
'arch_dma_set_mask' [-We
From: Arnd Bergmann
There are a few warnings in powerpc64 defconfig builds after
-Wmissing-prototypes
gets promoted from W=1 to the default warning set:
arch/powerpc/mm/book3s64/pgtable.c:422:6: error: no previous prototype for
'arch_report_meminfo' [-Werror=missing-prototypes]
arch/powerpc/mm
On 2023-07-26, Alexey Gladkov wrote:
> On Wed, Jul 26, 2023 at 02:36:25AM +1000, Aleksa Sarai wrote:
> > On 2023-07-11, Alexey Gladkov wrote:
> > > On the userspace side fchmodat(3) is implemented as a wrapper
> > > function which implements the POSIX-specified interface. This
> > > interface dif
On Thu, Jul 27, 2023, Fuad Tabba wrote:
> Hi Sean,
>
>
> ...
>
> > @@ -5134,6 +5167,16 @@ static long kvm_vm_ioctl(struct file *filp,
> > case KVM_GET_STATS_FD:
> > r = kvm_vm_ioctl_get_stats_fd(kvm);
> > break;
> > + case KVM_CREATE_GUEST_MEMFD: {
>
On 2023-07-28, Aleksa Sarai wrote:
> On 2023-07-26, Alexey Gladkov wrote:
> > On Wed, Jul 26, 2023 at 02:36:25AM +1000, Aleksa Sarai wrote:
> > > On 2023-07-11, Alexey Gladkov wrote:
> > > > On the userspace side fchmodat(3) is implemented as a wrapper
> > > > function which implements the POSIX
On Wed, Jul 26, 2023 at 07:49:39PM -0600, Rob Herring wrote:
> The DT of_device.h and of_platform.h date back to the separate
> of_platform_bus_type before it as merged into the regular platform bus.
> As part of that merge prepping Arm DT support 13 years ago, they
> "temporarily" include each oth
On Thu, Jul 27, 2023 at 09:01:06AM +, David Laight wrote:
> From: Aleksa Sarai
> > Sent: 25 July 2023 17:36
>
> > We almost certainly want to support AT_EMPTY_PATH at the same time.
> > Otherwise userspace will still need to go through /proc when trying to
> > chmod a file handle they have
On Jul 27 2023, David Laight wrote:
> From: Aleksa Sarai
>> Sent: 25 July 2023 17:36
> ...
>> We almost certainly want to support AT_EMPTY_PATH at the same time.
>> Otherwise userspace will still need to go through /proc when trying to
>> chmod a file handle they have.
>
> That can't be allowed.
On Thu, Jul 27, 2023 at 06:28:53PM +0200, Andreas Schwab wrote:
> On Jul 27 2023, David Laight wrote:
>
> > From: Aleksa Sarai
> >> Sent: 25 July 2023 17:36
> > ...
> >> We almost certainly want to support AT_EMPTY_PATH at the same time.
> >> Otherwise userspace will still need to go through /proc
On Thu, Jul 27, 2023 at 07:02:53PM +0200, Christian Brauner wrote:
> On Thu, Jul 27, 2023 at 06:28:53PM +0200, Andreas Schwab wrote:
> > On Jul 27 2023, David Laight wrote:
> >
> > > From: Aleksa Sarai
> > >> Sent: 25 July 2023 17:36
> > > ...
> > >> We almost certainly want to support AT_EMPTY_PA
On Thu, Jul 27, 2023 at 01:13:37PM -0400, dal...@libc.org wrote:
> On Thu, Jul 27, 2023 at 07:02:53PM +0200, Christian Brauner wrote:
> > On Thu, Jul 27, 2023 at 06:28:53PM +0200, Andreas Schwab wrote:
> > > On Jul 27 2023, David Laight wrote:
> > >
> > > > From: Aleksa Sarai
> > > >> Sent: 25 Jul
On 2023-07-27, Christian Brauner wrote:
> On Wed, Jul 26, 2023 at 02:43:41AM +1000, Aleksa Sarai wrote:
> > On 2023-07-11, Alexey Gladkov wrote:
> > > From: Palmer Dabbelt
> > >
> > > This registers the new fchmodat2 syscall in most places as nuber 452,
> > > with alpha being the exception wher
hi guys
I am looking for board manual of the old Algorithmic P-4000i.
the purpose is to restore an old board for educational.
Does anyone happen to have the manual or info on the board?
let me know
C.
rncpy(micfil->name, np->name, sizeof(micfil->name) - 1);
+ strscpy(micfil->name, np->name, sizeof(micfil->name));
micfil->soc = of_device_get_match_data(&pdev->dev);
---
base-commit: 57012c57536f8814dec92e74197ee96c3498d24e
change-id: 20230727-sound
Ondrej Mosnacek writes:
> Currently, SELinux doesn't allow distinguishing between kernel threads
> and userspace processes that are started before the policy is first
> loaded - both get the label corresponding to the kernel SID. The only
> way a process that persists from early boot can get a mea
Costa Shulyupin writes:
> and fix all in-tree references.
>
> Architecture-specific documentation is being moved into Documentation/arch/
> as a way of cleaning up the top-level documentation directory and making
> the docs hierarchy more closely match the source hierarchy.
>
> Signed-off-by: Cost
li...@treblig.org writes:
> From: "Dr. David Alan Gilbert"
>
> PowerPC has a 'btext' font used for the console which is almost identical
> to the shared font_sun8x16, so use it rather than duplicating the data.
>
> They were actually identical until about a decade ago when
>commit bcfbeecea11c
Hello:
This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski :
On Wed, 26 Jul 2023 19:49:39 -0600 you wrote:
> The DT of_device.h and of_platform.h date back to the separate
> of_platform_bus_type before it as merged into the regular platform bus.
> As part of that merge prepping
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