[pulling in nfs guys]
> > Questions:
> > 1. Does sync() result in fully purging inodes on MDS?
>
> I don't think so, but again, that code is not trivial to follow. I do
> know that the MDS keeps around a "strays directory" which contains
> unlinked inodes that are lazily cleaned up. My suspicion i
On Tue, May 05, 2020 at 11:46:48AM -0700, Tony Luck wrote:
> An interesting thing happened when a guest Linux instance took
> a machine check. The VMM unmapped the bad page from guest physical
> space and passed the machine check to the guest.
>
> Linux took all the normal actions to offline the p
No pr_* is called in sort.c, let's remove the unused pr_fmt macro.
Cc: Kostenzer Felix
Cc: Andrew Morton
Signed-off-by: Shaokun Zhang
---
lib/sort.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/lib/sort.c b/lib/sort.c
index 3ad454411997..99ecab8d6f41 100644
--- a/lib/sort.c
+++ b/lib/s
When checking a performance change for will-it-scale scalability
mmap test [1], we found very high lock contention for spinlock of
percpu counter 'vm_committed_as':
94.14% 0.35% [kernel.kallsyms] [k] _raw_spin_lock_irqsave
48.21%
_raw_spin_lock_irqsave;percpu_counter_add_batc
percpu_counter_sum_positive() will provide more accurate info.
As with percpu_counter_read_positive(), in worst case the deviation
could be 'batch * nr_cpus', which is totalram_pages/256 for now,
and will be more when the batch gets enlarged.
Its time cost is about 800 nanoseconds on a 2C/4T plat
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社会福祉プロジェクトと申します。
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ご案内したい事がございます。
放課後等デイサービス（放デイ）をご存知でしょうか？
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障がいをお持ちの児童を、放課後や
夏休みなどの長期休暇中の居場所を作り
生活能力を向上させ自立を促す事を
目的とした施設のオーナーとして
安定した収益の柱を増やし、社会貢献度も
非常に高いビジネスです。
社会福祉プロジェクト オンラインセミナーの詳細はこちら
https://fukushi-service.work/semi
When checking a performance change for will-it-scale scalability
mmap test [1], we found very high lock contention for spinlock of
percpu counter 'vm_committed_as':
94.14% 0.35% [kernel.kallsyms] [k] _raw_spin_lock_irqsave
48.21%
_raw_spin_lock_irqsave;percpu_counter_add_batc
Use the existing vm_memory_committed() instead, which is also
convenient for future change.
Signed-off-by: Feng Tang
Acked-by: Michal Hocko
---
fs/proc/meminfo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 8c1f1bb..578c0b8 1006
Add a new version of the uAPI to address existing 32/64bit alignment
issues, add support for debounce, and provide some future proofing by
adding padding reserved for future use.
Signed-off-by: Kent Gibson
---
This patch is a proposal to replace the majority of the uAPI, so some
background and
We improve PLIC banner to help distinguish multiple PLIC instances
in boot time prints.
Signed-off-by: Anup Patel
---
drivers/irqchip/irq-sifive-plic.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-sifive-plic.c
b/drivers/irqchip/irq-sifive-
This series does more improvements for supporting multiple PLIC
instances.
PATCH1 and PATCH4 are fixes whereas PATCH2 and PATCH3 help users
distinguish between multiple PLIC instances.
These patches are based up Linux-5.7-rc5 and can be found at
plic_imp_v1 branch at: https://github.com/avpatel/l
For multiple PLIC instances, the plic_init() is called once for each
PLIC instance. Due to this we have two issues:
1. cpuhp_setup_state() is called multiple times
2. plic_starting_cpu() can crash for boot CPU if cpuhp_setup_state()
is called before boot CPU PLIC handler is available.
This patc
To distinguish interrupts from multiple PLIC instances, we use a
per-PLIC irq_chip instance with a different name.
Signed-off-by: Anup Patel
---
drivers/irqchip/irq-sifive-plic.c | 28 +++-
1 file changed, 15 insertions(+), 13 deletions(-)
diff --git a/drivers/irqchip/ir
For multiple PLIC instances, each PLIC can only target a subset of
CPUs which is represented by "lmask" in the "struct plic_priv".
Currently, the default irq affinity for each PLIC interrupt is all
online CPUs which is illegal value for default irq affinity when we
have multiple PLIC instances. To
On 2020/5/14 7:01, Jacob Pan wrote:
Shared virtual address (SVA), a.k.a, Shared virtual memory (SVM) on Intel
platforms allow address space sharing between device DMA and applications.
SVA can reduce programming complexity and enhance security.
This series is intended to enable SVA virtualization
On Fri, May 15, 2020 at 01:21:21PM -0400, Alan Stern wrote:
> On Fri, May 15, 2020 at 05:54:53PM +0100, Colin King wrote:
> > From: Colin Ian King
> >
> > The comparison of hcd->irq to less than zero for an error check will
> > never be true because hcd->irq is an unsigned int. Fix this by
> > a
On 5/16/20 4:26 AM, Jonathan Bakker wrote:
In the discussion around adding the GP2A002 light driver, there came
up the question of what to do when a system emulates a current ADC
by using a voltage ADC and a resistor. Rather than adding it on
a per-driver basis, it was suggested(1) to add a mini
Hi,
On Thu, May 14, 2020 at 05:32:41PM +0200, Arnd Bergmann wrote:
> Typical distros currently offer two kernels, with and without LPAE,
> and they probably don't want to add a third one for LPAE with
> either highmem or vmsplit-4g-4g. Having extra user address
> space and more lowmem is both goi
Hi Jacob,
On 2020/5/14 23:57, Jacob Pan wrote:
Hi Christoph,
Thanks a lot for the reviews, comments below.
Jacob
On Wed, 13 May 2020 22:59:30 -0700
Christoph Hellwig wrote:
+ if (dev_is_pci(dev)) {
+ /* VT-d supports devices with full 20 bit PASIDs
only */
+
The following commit has been merged into the x86/cleanups branch of tip:
Commit-ID: 6255c161a08564e4f3995db31f3d64a5fd24738b
Gitweb:
https://git.kernel.org/tip/6255c161a08564e4f3995db31f3d64a5fd24738b
Author:Borislav Petkov
AuthorDate:Fri, 15 May 2020 20:21:21 +02:00
Comm
Hi Andrew,
On Fri, 15 May 2020 16:30:18 -0700 Andrew Morton
wrote:
>
> * mm-introduce-external-memory-hinting-api.patch
The above patch should have
#define __NR_process_madvise 443
not 442, in arch/arm64/include/asm/unistd32.h
and
442common fsinfo sys_fsinfo
+
In order to get any rtas* struct into other headers, including rtas.h
may cause a lot of errors, regarding include dependency needed for
inline functions.
Create rtas-types.h and move there all type/struct definitions
from rtas.h, then include rtas-types.h into rtas.h.
Also, as suggested by check
Implement rtas_call_reentrant() for reentrant rtas-calls:
"ibm,int-on", "ibm,int-off",ibm,get-xive" and "ibm,set-xive".
On LoPAPR Version 1.1 (March 24, 2016), from 7.3.10.1 to 7.3.10.4,
items 2 and 3 say:
2 - For the PowerPC External Interrupt option: The * call must be
reentrant to the number
Patch 2 implement rtas_call_reentrant() for reentrant rtas-calls:
"ibm,int-on", "ibm,int-off",ibm,get-xive" and "ibm,set-xive",
according to LoPAPR Version 1.1 (March 24, 2016).
For that, it's necessary that every call uses a different
rtas buffer (rtas_args). Paul Mackerras suggested using the P
On Sat, May 16, 2020 at 3:00 AM Luis Chamberlain wrote:
>
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / reload a
On Fri, May 15, 2020 at 9:52 PM Lai Jiangshan
wrote:
>
> On Sat, May 16, 2020 at 12:28 PM Michel Lespinasse wrote:
> >
> > On Fri, May 15, 2020 at 03:59:09PM +, Lai Jiangshan wrote:
> > > latch_tree_find() should be protected by caller via RCU or so.
> > > When it find a node in an attempt, t
On Sat, May 16, 2020 at 12:28 PM Michel Lespinasse wrote:
>
> On Fri, May 15, 2020 at 03:59:09PM +, Lai Jiangshan wrote:
> > latch_tree_find() should be protected by caller via RCU or so.
> > When it find a node in an attempt, the node must be a valid one
> > in RCU's point's of view even the
Hi Linus,
Two small fixes that should go into this release:
- Check and handle zero length splice (Pavel)
- Fix a regression in this merge window for fixed files used with polled
block IO.
Please pull!
git://git.kernel.dk/linux-block.git tags/io_uring-5.7-2020-05-15
On 05/07/2020 12:20 AM, Xu Wang wrote:
> Use set_current_state macro instead of current->state = TASK_RUNNING.
>
> Signed-off-by: Xu Wang
Reviewed-by: Chaitanya Kulkarni
On Fri, May 15, 2020 at 03:59:09PM +, Lai Jiangshan wrote:
> latch_tree_find() should be protected by caller via RCU or so.
> When it find a node in an attempt, the node must be a valid one
> in RCU's point's of view even the tree is (being) updated with a
> new node with the same key which is
Vyrbrid devices don't have any clock that need to be taken care of, so
make clock data optional on i.MX.
Signed-off-by: Andrey Smirnov
Cc: Chris Healy
Cc: Horia Geantă
Cc: Herbert Xu
Cc: Fabio Estevam
Cc: linux-...@nxp.com
Cc: linux-cry...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
On Fri, May 15, 2020 at 09:28:46PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:45PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:44PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:42PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:43PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:40PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:41PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:39PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:38PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
Hello Nick,
On Fri, 2020-05-15 at 17:30 +1000, Nicholas Piggin wrote:
> Excerpts from Leonardo Bras's message of May 15, 2020 9:51 am:
> > Implement rtas_call_reentrant() for reentrant rtas-calls:
> > "ibm,int-on", "ibm,int-off",ibm,get-xive" and "ibm,set-xive".
> >
> > On LoPAPR Version 1.1 (Ma
On Fri, May 15, 2020 at 09:28:37PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:36PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:35PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:34PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:33PM +, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / r
On Fri, May 15, 2020 at 09:28:32PM +, Luis Chamberlain wrote:
> Device driver firmware can crash, and sometimes, this can leave your
> system in a state which makes the device or subsystem completely
> useless. Detecting this by inspecting /proc/sys/kernel/tainted instead
> of scraping some mag
On Fri, May 15, 2020 at 5:55 PM Petr Mladek wrote:
>
> On Thu 2020-04-23 00:02:48, Orson Zhai wrote:
> > On Wed, Apr 22, 2020 at 10:25 PM Leon Romanovsky wrote:
> > >
> > > On Wed, Apr 22, 2020 at 09:06:08PM +0800, Orson Zhai wrote:
> > > > On Tue, Apr 21, 2020 at 3:10 AM Leon Romanovsky wrote:
On 2020-05-15 03:30, Avri Altman wrote:
> NAND flash-based storage devices, needs to translate the logical
> addresses of the IO requests to its corresponding physical addresses of
> the flash storage. As the internal SRAM of the storage device cannot
> accommodate the entire L2P mapping table, th
From: Yuqi Jin
Commit adb03115f459 ("net: get rid of an signed integer overflow in
ip_idents_reserve()")
used atomic_cmpxchg to replace "atomic_add_return" inside the function
"ip_idents_reserve". The reason was to avoid UBSAN warning.
However, this change has caused performance degrade and in G
Hi Christoph,
On Wed, 13 May 2020 18:00:34 +0200
Christoph Hellwig wrote:
> Provide alternative versions of probe_kernel_read, probe_kernel_write
> and strncpy_from_kernel_unsafe that don't need set_fs magic, but instead
> use arch hooks that are modelled after unsafe_{get,put}_user to access
>
On Thu, May 14, 2020 at 03:02:48PM +0200, Peter Zijlstra wrote:
> On Fri, May 08, 2020 at 08:34:57PM +0800, Aaron Lu wrote:
> > With this said, I realized a workaround for the issue described above:
> > when the core went from 'compatible mode'(step 1-3) to 'incompatible
> > mode'(step 4), reset al
On 2020-05-15 03:30, Avri Altman wrote:
> diff --git a/drivers/scsi/device_handler/scsi_dh_ufshpb.c
> b/drivers/scsi/device_handler/scsi_dh_ufshpb.c
> index affc143..04e3d56 100644
> --- a/drivers/scsi/device_handler/scsi_dh_ufshpb.c
> +++ b/drivers/scsi/device_handler/scsi_dh_ufshpb.c
> @@ -15,6
add support to change TX/RX queue number with ethtool -L
Signed-off-by: Luo bin
---
.../net/ethernet/huawei/hinic/hinic_ethtool.c | 46 +++
.../net/ethernet/huawei/hinic/hinic_main.c| 2 +-
drivers/net/ethernet/huawei/hinic/hinic_tx.c | 5 ++
3 files changed, 44 insertions
Be pedantic on removal as well and hold the mutex.
This should prevent uses of addition while we exit.
Reviewed-by: Ming Lei
Signed-off-by: Luis Chamberlain
---
drivers/block/loop.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 14372df
Commit dc9edc44de6c ("block: Fix a blk_exit_rl() regression") merged on
v4.12 moved the work behind blk_release_queue() into a workqueue after a
splat floated around which indicated some work on blk_release_queue()
could sleep in blk_exit_rl(). This splat would be possible when a driver
called blk_
We use one blktrace per request_queue, that means one per the entire
disk. So we cannot run one blktrace on say /dev/vda and then /dev/vda1,
or just two calls on /dev/vda.
We check for concurrent setup only at the very end of the blktrace setup though.
If we try to run two concurrent blktraces o
ft in place the scsi-generic blktrace suppport given I didn't receive any
feedback to kill it. This ensures this works as it used to.
Since these are minor changes I've given this a spin with break-blktrace
tests I have written and also ran blktrace with a scsi-generic media
changer. Both sg0 (
This adds documentation for the gendisk / request_queue refcount
helpers.
Reviewed-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Signed-off-by: Luis Chamberlain
---
block/blk-core.c | 13 +
block/genhd.c| 50 +++-
2 files changed
Let us clarify the context under which the helpers to increment the
refcount for the gendisk and request_queue can be called under. We
make this explicit on the places where we may sleep with might_sleep().
We don't address the decrement context yet, as that needs some extra
work and fixes, but wi
make_request-based drivers and and request-based drivers share some
debugfs code. By moving this into its own file it makes it easier
to expand and audit this shared code.
This patch contains no functional changes.
Cc: Bart Van Assche
Cc: Omar Sandoval
Cc: Hannes Reinecke
Cc: Nicolai Stange
C
On commit 6ac93117ab00 ("blktrace: use existing disk debugfs directory")
merged on v4.12 Omar fixed the original blktrace code for request-based
drivers (multiqueue). This however left in place a possible crash, if you
happen to abuse blktrace while racing to remove / add a device.
We used to use
On 2020-05-15 03:30, Avri Altman wrote:
> Allow scsi device handler handle their own CDB and ship it down the
> stream of scsi passthrough command setup flow, without any further
> interventions.
>
> This is useful for setting DRV-OP that implements vendor commands via
> the scsi device handlers f
On Fri, May 15, 2020 at 02:34:29AM +0200, Frederic Weisbecker wrote:
> So far setting a tick dependency on any task, including current, used to
> trigger an IPI to all CPUs. That's of course suboptimal but it wasn't
> an issue as long as it was only used by posix-cpu-timers on nohz_full,
> a combo
On 2020/5/16 10:47, Kees Cook wrote:
On Sat, May 16, 2020 at 10:32:19AM +0800, Xiaoming Ni wrote:
On 2020/5/16 0:05, Kees Cook wrote:
On Fri, May 15, 2020 at 05:06:28PM +0800, Xiaoming Ni wrote:
On 2020/5/15 16:06, Kees Cook wrote:
On Fri, May 15, 2020 at 12:33:42PM +0800, Xiaoming Ni wrote:
On 2020-05-15 03:30, Avri Altman wrote:
> +#define RSP_DATA_SEG_LEN (sizeof(struct ufshpb_sense_data))
The name of this macro is almost as long as the expression it replaces.
It may make the code easier to read by dropping this macro and using the
sizeof() expression directly.
> + struct task
On 2020-05-14 19:17, Jeffrey Hugo wrote:
The intvec handler stores the caches ee in a local variable for use in
processing the intvec. It should instead use the current ee which is
read at the beginning of the intvec incase that the intvec is related
to
an ee change. Otherwise, the handler mi
On 2020/5/16 2:13, Michal Kubecek wrote:
On Fri, May 15, 2020 at 12:35:47AM +, Luo bin wrote:
add support to change TX/RX queue number with ethtool -L
Signed-off-by: Luo bin
---
.../net/ethernet/huawei/hinic/hinic_ethtool.c | 67 +--
.../net/ethernet/huawei/hinic/hinic
On Fri, May 15, 2020 at 4:56 PM Dave Hansen wrote:
>
> On 5/15/20 4:29 PM, Yu-cheng Yu wrote:
> > On Fri, 2020-05-15 at 15:43 -0700, Dave Hansen wrote:
> >> Basically, if there ends up being a bug in an app that violates the
> >> shadow stack rules, the app is broken, period. The only recourse is
On Fri, 2020-05-15 at 16:56 -0700, Dave Hansen wrote:
> On 5/15/20 4:29 PM, Yu-cheng Yu wrote:
> > On Fri, 2020-05-15 at 15:43 -0700, Dave Hansen wrote:
> > > Basically, if there ends up being a bug in an app that violates the
> > > shadow stack rules, the app is broken, period. The only recourse
On Sat, May 16, 2020 at 10:32:19AM +0800, Xiaoming Ni wrote:
> On 2020/5/16 0:05, Kees Cook wrote:
> > On Fri, May 15, 2020 at 05:06:28PM +0800, Xiaoming Ni wrote:
> > > On 2020/5/15 16:06, Kees Cook wrote:
> > > > On Fri, May 15, 2020 at 12:33:42PM +0800, Xiaoming Ni wrote:
> > > > > Add the share
On 2020-05-15 03:30, Avri Altman wrote:
> @@ -17,6 +18,13 @@
>
> #define UFSHPB_NAME "ufshpb"
>
> +#define UFSHPB_WRITE_BUFFER (0xfa)
> +#define WRITE_BUFFER_TIMEOUT (3 * HZ)
> +#define WRITE_BUFFER_RETRIES (3)
> +#define UFSHPB_READ_BUFFER (0xf9)
> +#define READ_BUFFER_TIMEOUT (3 * HZ)
> +#d
On Tue, May 12, 2020 at 06:35:04PM -0500, Tyler Hicks wrote:
> On 2020-05-06 14:15:21, Kees Cook wrote:
> > @@ -954,7 +965,11 @@ static void __init ramoops_register_dummy(void)
> > pdata.console_size = ramoops_console_size;
> > pdata.ftrace_size = ramoops_ftrace_size;
> > pdata.pmsg_siz
On Fri, May 15, 2020 at 5:13 PM Andrew Cooper wrote:
>
> On 15/05/2020 23:43, Dave Hansen wrote:
> > On 5/15/20 2:33 PM, Yu-cheng Yu wrote:
> >> On Fri, 2020-05-15 at 11:39 -0700, Dave Hansen wrote:
> >>> On 5/12/20 4:20 PM, Yu-cheng Yu wrote:
> >>> Can a binary compiled with CET run without CET?
When CONFIG_DRM_I915_DEBUG_GEM is not set, clang warns:
drivers/gpu/drm/i915/gvt/scheduler.c:884:1: warning: function
'check_shadow_context_ppgtt' is not needed and will not be emitted
[-Wunneeded-internal-declaration]
check_shadow_context_ppgtt(struct execlist_ring_context *c, struct
intel_vgpu_m
Excerpts from Rik van Riel's message of May 16, 2020 5:24 am:
> On Fri, 2020-05-15 at 16:50 +1000, Nicholas Piggin wrote:
>>
>> But what about if there are (real, not speculative) stores in the
>> store
>> queue still on the lazy thread from when it was switched, that have
>> not
>> yet become c
On 2020/5/16 0:05, Kees Cook wrote:
On Fri, May 15, 2020 at 05:06:28PM +0800, Xiaoming Ni wrote:
On 2020/5/15 16:06, Kees Cook wrote:
On Fri, May 15, 2020 at 12:33:42PM +0800, Xiaoming Ni wrote:
Add the shared variable SYSCTL_NEG_ONE to replace the variable neg_one
used in both sysctl_writes_s
Some devices may require a current adc, but only have a voltage
ADC onboard. In order to read the current, they have a resistor
connected to the ADC. Add bindings for this possibility.
Signed-off-by: Jonathan Bakker
---
.../iio/adc/linux,current-from-voltage.yaml | 47 +++
1
Some devices may require a current adc, but only have a voltage
ADC onboard. In order to read the current, they have a resistor
connected to the ADC.
Suggested-by: Jonathan Cameron
Signed-off-by: Jonathan Bakker
---
MAINTAINERS| 8 ++
drivers/iio/adc/Kconfig
In the discussion around adding the GP2A002 light driver, there came
up the question of what to do when a system emulates a current ADC
by using a voltage ADC and a resistor. Rather than adding it on
a per-driver basis, it was suggested(1) to add a minimal IIO driver
to support this situation.
Th
Currently the initial allocation for pg_vec buffers are done through
page allocator with __GFP_NORETRY, the first fallbacks is vzalloc and
the second fallback is page allocator without __GFP_NORETRY.
First, there is no need to do vzalloc if the order is 0 and second the
vzalloc internally use GFP_
When ATI Radeon GPU driver has been compiled directly into the kernel
instead of as a module, we should make sure the firmware for the model
(check available ones in /lib/firmware/radeon) is built-in to the kernel
as well, otherwise there exists the following fatal error during GPU init,
change CON
When CONFIG_HAVE_STD_PC_SERIAL_PORT is set, there exists build errors
of 8250-platform.c due to linux/module.h is not included.
CONFIG_HAVE_STD_PC_SERIAL_PORT is not used in arch/mips for many years,
8250-platform.c is also not built and used, so it is not necessary to
fix the build errors, just r
On 2020-05-15 03:30, Avri Altman wrote:
> +static int ufshpb_mempool_init(struct ufshpb_dh_lun *hpb)
> +{
> + unsigned int max_active_subregions = hpb->max_active_regions *
> + subregions_per_region;
> + int i;
> +
> + INIT_LIST_HEAD(&hpb->lh_map_ctx);
> + spin_lock_init
On 2020-05-15 03:30, Avri Altman wrote:
> @@ -368,6 +390,8 @@ int ufshpb_probe(struct ufs_hba *hba)
> if (ret)
> goto out;
>
> + INIT_DELAYED_WORK(&hba->hpb_disable_work, ufshpb_disable_work);
> + schedule_delayed_work(&hba->hpb_disable_work, 60 * HZ);
> out:
>
On Tue, May 12, 2020 at 10:43:18PM -0700, ira.we...@intel.com wrote:
> From: Ira Weiny
>
> Encryption and DAX are incompatible. Changing the DAX mode due to a
> change in Encryption mode is wrong without a corresponding
> address_space_operations update.
>
> Make the 2 options mutually exclusiv
On 2020-05-15 03:30, Avri Altman wrote:
> +struct ufshpb_lun_config *ufshpb_luns_conf;
> +struct ufshpb_lun *ufshpb_luns;
> +static unsigned long ufshpb_lun_map[BITS_TO_LONGS(UFSHPB_MAX_LUNS)];
> +static u8 ufshpb_lun_lookup[UFSHPB_MAX_LUNS];
> +
> +/**
> + * ufshpb_remove - ufshpb cleanup
> + *
>
On 2020-05-15 03:30, Avri Altman wrote:
> @@ -4628,6 +4628,9 @@ static int ufshcd_slave_alloc(struct scsi_device *sdev)
>
> ufshcd_get_lu_power_on_wp_status(hba, sdev);
>
> + if (ufshcd_is_hpb_supported(hba))
> + ufshpb_attach_sdev(hba, sdev);
> +
> return 0;
> }
T
On Tue, May 12, 2020 at 10:43:17PM -0700, ira.we...@intel.com wrote:
> From: Ira Weiny
>
> Verity and DAX are incompatible. Changing the DAX mode due to a verity
> flag change is wrong without a corresponding address_space_operations
> update.
>
> Make the 2 options mutually exclusive by return
On 2020-05-15 03:30, Avri Altman wrote:
> +static int ufshpb_attach(struct scsi_device *sdev)
> +{
> + struct ufshpb_dh_data *h;
> +
> + h = kzalloc(sizeof(*h), GFP_KERNEL);
> + if (!h)
> + return SCSI_DH_NOMEM;
> +
> + sdev_printk(KERN_INFO, sdev, "%s: attached to sdev
On 2020-05-15 03:30, Avri Altman wrote:
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index 426073a..bffe699 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -50,6 +50,7 @@
> #include "ufs_bsg.h"
> #include
> #include
> +#include "ufshpb.
Hey Shakeel,
Shakeel Butt writes:
One way to measure the efficiency of memory reclaim is to look at the
ratio (pgscan+pfrefill)/pgsteal. However at the moment these stats are
not updated consistently at the system level and the ratio of these are
not very meaningful. The pgsteal and pgscan are u
On Mon, May 11, 2020 at 7:39 AM Luis Chamberlain wrote:
>
> On Sat, May 09, 2020 at 06:09:38PM -0700, Bart Van Assche wrote:
> > How about using the block device name instead of the partition name in
> > the error message since the concurrency context is the block device and
> > not the partition?
On Thu, May 14, 2020 at 08:55:30PM -0400, Sasha Levin wrote:
> On Thu, May 14, 2020 at 12:08:43PM -0700, Eric Biggers wrote:
> > On Thu, May 14, 2020 at 02:54:56PM -0400, Sasha Levin wrote:
> > > From: Eric Biggers
> > >
> > > [ Upstream commit 732e540953477083082e999ff553622c59cffd5f ]
> > >
>
Based on discussion[1], people didn't feel we need to support both
pid and pidfd for every new coming API[2] so this patch keeps only
pidfd. This patch also changes flags's type with "unsigned int".
So finally, the API is as follows,
ssize_t process_madvise(int pidfd, const struct iovec *iov
On Sat, May 16, 2020 at 07:23:42AM +0800, Tang Bin wrote:
> Hi Alan & Colin：
>
> On 2020/5/16 1:21, Alan Stern wrote:
> > On Fri, May 15, 2020 at 05:54:53PM +0100, Colin King wrote:
> > > From: Colin Ian King
> > >
> > > The comparison of hcd->irq to less than zero for an error check will
> > >
On 5/14/20 11:50 PM, Randy Dunlap wrote:
> Hi Rob,
Um, hi.
> You need to send this patch to some maintainer who could merge it.
The implicit "if" is "you expect the kernel bureaucracy to merge anything Not
Invented Here", and the 3 year gap since the last version is because I stopped:
https:/
On Fri, May 15, 2020 at 04:28:08PM -0700, Scott Branden wrote:
> Hi Luis,
>
> On 2020-05-15 1:47 p.m., Luis Chamberlain wrote:
> > On Wed, May 13, 2020 at 12:23:59PM -0400, Mimi Zohar wrote:
> > > Hi Scott,
> > >
> > > On Thu, 2020-05-07 at 17:27 -0700, Scott Branden wrote:
> > > > Please conside
The test driver uses an xa_array to store virtual to physical address
translations for a simulated hardware device. The MMU notifier
invalidation callback is used to keep the table consistent with the CPU
page table and is frequently called only for a page or two. However, if
the test process exits
When parsing the mount option, we don't have sbi->user_block_count.
Should do it after getting it.
Signed-off-by: Jaegeuk Kim
---
fs/f2fs/f2fs.h | 1 +
fs/f2fs/super.c | 25 +++--
2 files changed, 20 insertions(+), 6 deletions(-)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.
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