On Tue, Nov 27, 2018 at 4:19 AM Enric Balletbo i Serra
wrote:
>
> Due to the way attribute groups visibility work, the function
> cros_ec_lightbar_attrs_are_visible is called multiple times, once per
> attribute, and each of these calls makes an EC transaction. For what is
> worth the EC log
On Mon 10-12-18 16:45:37, Zaslonko Mikhail wrote:
> Hello,
>
> On 10.12.2018 14:24, Michal Hocko wrote:
[...]
> > Why do we need to restrict this to the highest zone? In other words, why
> > cannot we do what I was suggesting earlier [1]. What does prevent other
> > zones to have an incomplete
On Sat, Dec 08, 2018 at 05:56:30PM -0800, Martin Lau wrote:
> On Fri, Dec 07, 2018 at 04:53:14PM -0800, Roman Gushchin wrote:
> > Implement bpffs pretty printing for cgroup local storage maps
> > (both shared and per-cpu).
> > Output example (captured for
On Mon, 10 Dec 2018 16:23:19 +0530
Ravi Bangoria wrote:
> Hi,
>
> Can you please provide more details. I don't understand how this patch
> can cause boot failure.
>
> >From the log found at
>
On Fri, 7 Dec 2018 17:51:19 +0800
Feng Tang wrote:
> When kernel panic happens, it will first print the panic call stack,
> then the ending msg like:
>
> [ 35.743249] ---[ end Kernel panic - not syncing: Fatal exception
> [ 35.749975] [ cut here ]
>
> The above
On Tue, Nov 27, 2018 at 4:19 AM Enric Balletbo i Serra
wrote:
>
> The cros-ec-vbc driver is DT-only and there is a DT property that
> indicates if the EC has the VCB NVRAM, in such case instantiate the
> driver but don't instantiate on the other cases.
>
> To do this move the check code to its
On 10/12/2018 10:53, Ravi Bangoria wrote:
> Hi,
>
> Can you please provide more details. I don't understand how this patch
> can cause boot failure.
The kernel Oops caused by the nouveau driver was treated as a
boot failure in the BayLibre lab, although it did not necessarily
mean the kernel had
Reviving an old thread here.
On Wed, Jul 06, 2016 at 11:27:16PM +0200, Paolo Bonzini wrote:
> On 06/07/2016 19:34, Eduardo Habkost wrote:
> >> > Nothing is needed in the kernel actually. You can skip the intercept
> >> > by running the guest with MSR_TSC_AUX set to the guest's expected value.
>
Make PCI reboot conditional on PCI support being present on the kernel
configuration.
Signed-off-by: Sinan Kaya
---
drivers/acpi/reboot.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c
index
Getting ready to allow PCI to be disabled with ACPI enabled. Stub
out calls that depend on PCI.
Signed-off-by: Sinan Kaya
---
drivers/acpi/osl.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b48874b8e1ea..0d3ed659cfe8 100644
---
We are compiling PCI code today for systems with ACPI and no PCI
device present. Remove the useless code and reduce the tight
dependency.
Signed-off-by: Sinan Kaya
---
arch/x86/include/asm/pci_x86.h | 7 +++
drivers/acpi/Kconfig | 1 -
drivers/acpi/Makefile | 2 +-
On Tue, Nov 27, 2018 at 4:19 AM Enric Balletbo i Serra
wrote:
>
> The entire way how cros debugfs attibutes are created is broken.
> cros_ec_sysfs should be its own driver and its attributes should be
> associated with the sysfs driver not the mfd driver.
>
> The patch also adds the sysfs
On Tue, Nov 27, 2018 at 4:19 AM Enric Balletbo i Serra
wrote:
>
> The entire way how cros debugfs attibutes are created is broken.
> cros_ec_debugfs should be its own driver and its attributes should be
> associated with a debugfs driver not the mfd driver.
>
> Signed-off-by: Enric Balletbo i
On 12/10/2018 5:58 PM, David Howells wrote:
Roberto Sassu wrote:
You need to consider what it is that the patch trying to achieve.
I understood that the purpose is to check PGP signatures with built-in
keys or keys provided by the user. Since using the session keyring
caused the issue I
Hi Dmitry,
On Mon, Dec 10, 2018 at 07:09:40PM +0300, Dmitry V. Levin wrote:
> We decided to add .frame_pointer to struct ptrace_syscall_info just for
> consistency with .instruction_pointer and .stack_pointer; I must have been
> misled by comments in asm-generic/ptrace.h into thinking that
>
Hello,
"Troubleshooting" section in Documentation/locking/lockdep-design.txt
describes
1. Repeated module loading and unloading while running the validator
will result in lock-class leakage. The issue here is that each
load of the
On Mon, Dec 10, 2018 at 11:35:56PM +0800, Liu Song wrote:
> My kernel version is 4.4.166 and I found incorrect print info
> from print_one_rcu_pending. Adjust the description to make the
> information correct.
>
> Signed-off-by: Liu Song
This does not apply to mainline because debugfs tracing
Good day Adrian,
On Sat, 8 Dec 2018 at 05:05, Lei Wen wrote:
>
> Hi Mathieu,
>
> I am enabling etmv4 coresight over one Cortex-A7 soc, using 32bit kernel.
> And I am following [1] to do experiment regarding the addr_range feature.
That wiki is very old and after reading it again I seriously
The driver adds different MFD child devices via mfd_add_devices() and
hence it is required to call mfd_remove_devices() to remove MFD child
devices.
Fixes: 5e0115581bbc ("cros_ec: Move cros_ec_dev module to drivers/mfd")
Cc: sta...@vger.kernel.org
Signed-off-by: Enric Balletbo i Serra
---
Hi
From: Florian Westphal
Date: Mon, 10 Dec 2018 13:47:24 +0100
> After recent tree conversion, we could probably make the exact policies
> part of the 'inexact tree' (which would be renamed to 'policy tree' or
> some such).
>
> Special-casing the exact policies made a lot of sense when we had
> a
On 12/10/18 10:30 AM, Kees Cook wrote:
On Sun, Dec 9, 2018 at 3:00 PM Dmitry V. Levin wrote:
I've stumbled over the current macro-expand behaviour of the test
harness:
$ gcc -Wall -xc - <<'__EOF__'
TEST(macro) {
int status = 0;
ASSERT_TRUE(WIFSIGNALED(status));
}
Hi Ingo,
On Thu, Dec 06, 2018 at 05:13:44PM +0100, Ingo Molnar wrote:
>
> * Mark Rutland wrote:
>
> > Andrew and Ingo report that the check-atomics.sh script is simply too
> > slow to run for every kernel build, and it's impractical to make it
> > faster without rewriting it in something other
Quoting Colin King (2018-12-09 07:08:32)
> From: Colin Ian King
>
> The initialization of ret is redundant as it is being re-assigned to
> the return value from the call to imx8m_clk_composite_compute_dividers.
> Clean this up by removing the initialization.
>
> Signed-off-by: Colin Ian King
>
Hi Ingo,
On Thu, Dec 06, 2018 at 05:15:28PM +0100, Ingo Molnar wrote:
>
> * Will Deacon wrote:
>
> > [+ Ingo and Mark]
> >
> > On Tue, Dec 04, 2018 at 10:47:13PM +0100, Anders Roxell wrote:
> > > Some distibutions and build systems doesn't include 'fold' from
> > > coreutils default.
> > >
>
Hi Andrew,
Can you take this patch for -mm?
-Kees
On Sun, Dec 9, 2018 at 8:41 AM Christian Brauner
wrote:
>
> On Mon, Oct 29, 2018 at 10:44 PM Kees Cook wrote:
> >
> > On Mon, Oct 29, 2018 at 7:58 AM, Christian Brauner
> > wrote:
> > > On Wed, Oct 17, 2018 at 12:33:20AM +0200, Christian
On Mon, Dec 10, 2018 at 02:51:21PM +0800, Peter Xu wrote:
> When the process being tracked do mremap() without
> UFFD_FEATURE_EVENT_REMAP on the corresponding tracking uffd file
> handle, we should not generate the remap event, and at the same
> time we should clear all the uffd flags on the new
chouryzhou@, can you confirm that this implementation works for your
android-in-container use-case?
-Todd
On Fri, Dec 7, 2018 at 3:26 PM Christian Brauner wrote:
>
> As discussed at Linux Plumbers Conference 2018 in Vancouver [1] this is the
> implementation of binderfs.
>
> binderfs is a
We currently check the atomic headers at build-time to ensure they
haven't been modified directly, and these checks require regenerating
the headers in full. As this takes a few seconds, even when
parallelized, this is too slow to run for every kernel build.
Instead, we can generate a hash of
From: Anders Roxell
Some distibutions and build systems doesn't include 'fold' from
coreutils default.
.../scripts/atomic/atomic-tbl.sh: line 183: fold: command not found
Rework to use 'grep' instead of 'fold' to use a dependency that is
already used a lot in the kernel.
Reported-by: Naresh
Hi Ingo,
I hope that these atomic scripting patches address your concerns with
the atomics scripting infrastructure. These are based on the tip
locking/core branch, leaving the headers checked-in.
The primary improvement is using a hash to detect when the headers have
been erroneously modified,
Running something like:
decodecode vmlinux .
leads to interested results where not only the leading "." gets stripped
from the displayed paths, but also anywhere in the string, displaying
something like:
kvm_vcpu_check_block (arch/arm64/kvm/virt/kvm/kvm_mainc:2141)
which
On Mon, Dec 10, 2018 at 12:08 AM Christophe Leroy
wrote:
>
> On several arches, virt_to_phys() is in io.h
>
> Build fails without it:
>
> CC lib/test_debug_virtual.o
> lib/test_debug_virtual.c: In function 'test_debug_virtual_init':
> lib/test_debug_virtual.c:26:7: error: implicit
When running decodecode natively on arm64, ARCH is likely not to be set,
and we end-up with .4byte instead of .inst when generating the disassembly.
Similar effects would occur if running natively on a 32bit ARM platform,
although that's even less popular.
A simple workaround is to populate ARCH
Resending this, as there was hardly any feedback except for Will's
Ack. Andrew, can you please consider this?
Here's a couple of fixes that have been languishing in my tree for a
few months.
The first one is for an issue that can only be observed using
decodecode natively on arm/arm64m and
On Mon, Dec 10, 2018 at 1:52 AM Andy Shevchenko
wrote:
>
> Linus, due to my vacation schedule and possibility that Darren might
> be also busy with some stuff, would be okay to send PR this week, for
> example?
Oh, absolutely.
And I want to make it clear that this is not something you ever need
On Mon, 10 Dec 2018 08:52:38 PST (-0800), daniel.lezc...@linaro.org wrote:
In order to unify the names in this directory, let's rename the driver to be
prefixed with timer-*
Signed-off-by: Daniel Lezcano
---
drivers/clocksource/Makefile | 2 +-
On Sun, Dec 9, 2018 at 8:31 PM Dmitry V. Levin wrote:
>
> From: Elvira Khabirova
>
> PTRACE_GET_SYSCALL_INFO is a generic ptrace API that lets ptracer obtain
> details of the syscall the tracee is blocked in.
>
> There are two reasons for a special syscall-related ptrace request.
>
> Firstly,
k...@linuxonhyperv.com writes:
> +
> +static inline u64 hv_read_tsc_page_tsc(const struct ms_hyperv_tsc_page
> *tsc_pg,
> +u64 *cur_tsc)
> +{
> + u64 scale, offset;
> + u32 sequence;
> +
> + /*
> + * The protocol for reading Hyper-V
On Mon, 10 Dec 2018, Peter Zijlstra wrote:
> On Mon, Dec 10, 2018 at 04:23:06PM +0100, Thomas Gleixner wrote:
> There is another callers of futex_lock_pi_atomic(),
> futex_proxy_trylock_atomic(), which is part of futex_requeue(), that too
> does a retry loop on -EAGAIN.
>
> And there is another
On Mon, Nov 5, 2018 at 6:56 AM Yangtao Li wrote:
>
> Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
>
> Signed-off-by: Yangtao Li
Reviewed-by: Kees Cook
-Kees
> ---
> net/bluetooth/l2cap_core.c | 12 +---
> net/bluetooth/rfcomm/core.c | 12 +---
>
On 12/10/18 11:27 AM, Jonathan Corbet wrote:
> On Sat, 8 Dec 2018 20:38:56 -0800
> Randy Dunlap wrote:
>
>> On 11/12/18 8:08 AM, Jonathan Corbet wrote:
>>> On Sun, 11 Nov 2018 18:36:30 -0800
>>> Greg KH wrote:
>>>
We should have a checklist. That's a great idea. Now to find someone
Thanks, Brian. Great point. Even for AER, it looks like in-flight
error handler completion is not guaranteed on
pci_disable_pcie_error_reporting call, so the crash is still possible.
It looks like we need to maintain per-pci_dev context and keep track
of in-flight callbacks to make a clean fix. I
Add MAINTAINERS entry for RDA Micro SoC architecture with myself
and Andreas Färber as the maintainers.
Signed-off-by: Manivannan Sadhasivam
---
MAINTAINERS | 15 +++
1 file changed, 15 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 6c3fbbb361f8..6411fb222590 100644
---
Add UART driver for RDA Micro RDA8810PL SoC.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
Reviewed-by: Greg Kroah-Hartman
---
.../admin-guide/kernel-parameters.txt | 6 +
drivers/tty/serial/Kconfig| 19 +
drivers/tty/serial/Makefile
Add interrupt support for UART in RDA Micro RDA8810PL SoC.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
---
arch/arm/boot/dts/rda8810pl.dtsi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/rda8810pl.dtsi b/arch/arm/boot/dts/rda8810pl.dtsi
index
From: Andreas Färber
Add an initial binding for the UART in RDA Micro RDA8810PL SoC.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
---
.../bindings/serial/rda,8810pl-uart.txt | 17 +
1 file changed, 17 insertions(+)
create mode 100644
Add initial devicetree for Orange Pi i96 board from Xunlong. It
is one of the 96Boards IoT Edition board.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
---
arch/arm/boot/dts/Makefile | 3 +-
arch/arm/boot/dts/rda8810pl-orangepi-i96.dts | 50
Add timer support for RDA Micro RDA8810PL SoC.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
---
arch/arm/boot/dts/rda8810pl.dtsi | 10 ++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/rda8810pl.dtsi b/arch/arm/boot/dts/rda8810pl.dtsi
index
Add clock driver for RDA Micro RDA8810PL SoC supporting OSTIMER
and HWTIMER.
RDA8810PL has two independent timers: OSTIMER (56 bit) and HWTIMER
(64 bit). Each timer provides optional interrupt support. In this
driver, OSTIMER is used for clockevents and HWTIMER is used for
clocksource.
Add interrupt driver for RDA Micro RDA8810PL SoC.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
Reviewed-by: Marc Zyngier
---
drivers/irqchip/Kconfig| 4 ++
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-rda-intc.c | 107
Document RDA Micro RDA8810PL SoC timer.
Signed-off-by: Manivannan Sadhasivam
---
.../bindings/timer/rda,8810pl-timer.txt | 20 +++
1 file changed, 20 insertions(+)
create mode 100644 Documentation/devicetree/bindings/timer/rda,8810pl-timer.txt
diff --git
Oleg Nesterov writes:
> On 12/06, Eric W. Biederman wrote:
>>
>> The challenge is that we could be delivering this to a zombie signal
>> group leader.
>
> ...
>
>> Sigh it is probably time that I dig in and figure out how to avoid that
>> case which we need to fix anyway because we can get the
Add initial devicetree support for OrangePi 2G IoT board from Xunlong.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
---
arch/arm/boot/dts/Makefile| 2 +
.../boot/dts/rda8810pl-orangepi-2g-iot.dts| 50 +++
2 files changed, 52
From: Andreas Färber
Introduce ARCH_RDA and mach-rda for RDA Micro SoCs.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
---
arch/arm/Kconfig | 2 ++
arch/arm/Makefile | 1 +
arch/arm/mach-rda/Kconfig | 9 +
arch/arm/mach-rda/Makefile | 1 +
4
Add initial device tree for RDA8810PL SoC from RDA Microelectronics.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
---
arch/arm/boot/dts/rda8810pl.dtsi | 86
1 file changed, 86 insertions(+)
create mode 100644
Document interrupt controller in RDA Micro RDA8810PL SoC.
Signed-off-by: Manivannan Sadhasivam
Reviewed-by: Rob Herring
---
.../interrupt-controller/rda,8810pl-intc.txt | 61 +++
1 file changed, 61 insertions(+)
create mode 100644
From: Andreas Färber
Add bindings for RDA Micro RDA8810PL SoC and below reference boards:
1. Orange Pi 2G-IoT - http://www.orangepi.org/OrangePi2GIOT/
2. Orange Pi i96 - https://www.96boards.org/product/orangepi-i96/
Cc: zhao_ste...@263.net
Signed-off-by: Andreas Färber
Signed-off-by:
From: Andreas Färber
Add vendor prefix for RDA Micro which now merged into Unisoc
Communications Inc.
Signed-off-by: Andreas Färber
Signed-off-by: Manivannan Sadhasivam
Reviewed-by: Rob Herring
---
Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
1 file changed, 1 insertion(+)
Hello,
This patchset adds initial RDA8810PL SoC and Orange Pi boards (2G IoT and
i96) support. RDA8810PL is an ARM Cortex A5 based SoC with Vivante's GC860
GPU. The SoC has been added as a new ARM sub architecture with myself
and Andreas as the maintainers.
More information about the boards can
On Wed, Dec 5, 2018 at 7:15 PM Martin K. Petersen
wrote:
>
>
> Evan,
>
> > Ah, I see. But I think it's useful to reflect max_discard_sectors,
> > max_write_zeroes_sectors, discard_granularity, and discard_alignment
> > from the block device to the loop device. With the exception of
> >
On Sun, 09 Dec 2018 08:30:34 PST (-0800), daniel.lezc...@linaro.org wrote:
On 07/12/2018 18:59, Palmer Dabbelt wrote:
On Tue, 04 Dec 2018 02:29:50 PST (-0800), a...@brainfault.org wrote:
This patchset extends riscv_timer to provide sched_clock using generic
sched_clock framework.
The patchset
Pavel Machek writes:
> On Mon 2018-12-03 10:45:01, Kalle Valo wrote:
>> Pavel Machek writes:
>>
>> > While grepping something else, I came across LED trigger that is named
>> > just "tx".
>> >
>> > That's a bit too generic afaict?
>> >
>> > +++ b/drivers/net/wireless/atmel/at76c50x-usb.c
>> >
On Tue, 11 Dec 2018, Frank Lee wrote:
> ping...
Please don't do that.
If you think your patch has been missed, then please send it again as
a [RESEND]. In this case you will need to fix the $SUBJECT line too.
To see what it should look like do the following:
`git log --oneline --
On Sun, Dec 9, 2018 at 3:00 PM Dmitry V. Levin wrote:
>
> I've stumbled over the current macro-expand behaviour of the test
> harness:
>
> $ gcc -Wall -xc - <<'__EOF__'
> TEST(macro) {
> int status = 0;
> ASSERT_TRUE(WIFSIGNALED(status));
> }
> TEST_HARNESS_MAIN
> __EOF__
> $
On Sun, Dec 9, 2018 at 8:31 PM Dmitry V. Levin wrote:
>
> This argument is required to extend the generic ptrace API with
> PTRACE_GET_SYSCALL_INFO request: syscall_get_arch() is going
> to be called from ptrace_request() along with syscall_get_nr(),
> syscall_get_arguments(),
BIT(13) in HYPERV_CPUID_FEATURES.EBX is described as "ConfigureProfiler" in
TLFS v4.0 but starting 5.0 it is replaced with 'Reserved'. As we don't
currently us it in kernel it can just be dropped.
Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Michael Kelley
---
The newly introduced KVM_GET_SUPPORTED_HV_CPUID covers Direct Mode stimers
feature so we can drop KVM_CAP_HYPERV_STIMER_DIRECT and reuse its number.
Signed-off-by: Vitaly Kuznetsov
---
- This patch only makes sense befor 4.21 merge window, disregard if it
doesn't make it in time.
---
In case we want to test failing ioctls we need an option to not
fail. Following _vcpu_run() precedent implement _vcpu_ioctl().
Signed-off-by: Vitaly Kuznetsov
---
tools/testing/selftests/kvm/include/kvm_util.h | 2 ++
tools/testing/selftests/kvm/lib/kvm_util.c | 14 --
2 files
Add a simple (and stupid) hyperv_cpuid test: check that we got the
expected number of entries with and without Enlightened VMCS enabled
and that all currently reserved fields are zeroed.
Signed-off-by: Vitaly Kuznetsov
---
Changes since v1:
- Check for -E2BIG
---
With every new Hyper-V Enlightenment we implement we're forced to add a
KVM_CAP_HYPERV_* capability. While this approach works it is fairly
inconvenient: the majority of the enlightenments we do have corresponding
CPUID feature bit(s) and userspace has to know this anyways to be able to
expose the
The upcoming KVM_GET_SUPPORTED_HV_CPUID ioctl will need to return
Enlightened VMCS version in HYPERV_CPUID_NESTED_FEATURES.EAX when
it was enabled.
Signed-off-by: Vitaly Kuznetsov
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/svm.c | 7 +++
arch/x86/kvm/vmx.c
hyperv-tlfs.h is a bit messy: CPUID feature bits are not always sorted,
it's hard to get which CPUID they belong to, some items are duplicated
(e.g. HV_X64_MSR_CRASH_CTL_NOTIFY/HV_CRASH_CTL_CRASH_NOTIFY).
Do some housekeeping work. While on it, replace all (1 << X) with BIT(X)
macro.
Changes since v1:
- Add Michael's R-b tags.
- Document KVM_GET_SUPPORTED_HV_CPUID and KVM_CAP_HYPERV_CPUID.
- Fix error handling in kvm_vcpu_ioctl_get_hv_cpuid().
- Check for -E2BIG in the selftest. PATCH6 is added to support the change.
As suggested by Paolo, introduce new
From: Stefan Hajnoczi
fuse_fill_super() includes code to process the fd= option and link the
struct fuse_dev to the fd's struct file. In virtio-fs there is no file
descriptor because /dev/fuse is not used.
This patch extracts fuse_fill_super_common() so that both classic fuse
and virtio-fs can
From: Stefan Hajnoczi
fput() will be moved out of this function in a later patch, so we cannot
rely on it as the memory barrier for ensuring file->private_data = fud
is visible.
Luckily there is a mutex_unlock() right before fput() which provides the
same effect.
Signed-off-by: Stefan Hajnoczi
On 12/10/2018 12:08 PM, Vincent Guittot wrote:
> On Mon, 10 Dec 2018 at 17:33, Vincent Guittot
> wrote:
>>
>> On Mon, 10 Dec 2018 at 17:29, Steven Sistare
>> wrote:
>>>
>>> On 12/10/2018 11:10 AM, Vincent Guittot wrote:
Hi Steven,
On Thu, 6 Dec 2018 at 22:38, Steve Sistare
From: Stefan Hajnoczi
virtio-fs will need unique IDs for FORGET requests from outside
fs/fuse/dev.c. Make the symbol visible.
Signed-off-by: Stefan Hajnoczi
---
fs/fuse/dev.c| 3 ++-
fs/fuse/fuse_i.h | 5 +
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/fuse/dev.c
From: Stefan Hajnoczi
Add a basic file system module for virtio-fs.
Signed-off-by: Stefan Hajnoczi
---
fs/fuse/Kconfig | 10 ++
fs/fuse/Makefile| 1 +
fs/fuse/virtio_fs.c | 33 +
3 files changed, 44 insertions(+)
create mode 100644
From: Stefan Hajnoczi
virtio-fs will need to complete requests from outside fs/fuse/dev.c.
Make the symbol visible.
Signed-off-by: Stefan Hajnoczi
---
fs/fuse/dev.c| 19 ++-
fs/fuse/fuse_i.h | 5 +
2 files changed, 15 insertions(+), 9 deletions(-)
diff --git
From: Stefan Hajnoczi
Setup a dax device.
Signed-off-by: Stefan Hajnoczi
---
fs/fuse/virtio_fs.c | 68 +
1 file changed, 68 insertions(+)
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 225eb729656f..fd914f2c6209 100644
---
Hi,
Here are RFC patches for virtio-fs. Looking for feedback on this approach.
These patches should apply on top of 4.20-rc5. We have also put code for
various components here.
https://gitlab.com/virtio-fs
Problem Description
===
We want to be able to take a directory tree on
When a file is opened with O_TRUNC, we need to make sure that any other
DAX operation is not in progress. DAX expects i_size to be stable.
In fuse_iomap_begin() we check for i_size at multiple places and we expect
i_size to not change.
Another problem is, if we setup a mapping in
From: Stefan Hajnoczi
Sent single FUSE_FORGET requests on the hiprio queue. In the future it
may be possible to do FUSE_BATCH_FORGET but that is tricky since
virtio-fs gets called synchronously when forgets are queued.
Signed-off-by: Stefan Hajnoczi
---
fs/fuse/virtio_fs.c | 93
From: Stefan Hajnoczi
Although struct dax_device itself is not tied to a block device, some
DAX code assumes there is a block device. Make block devices optional
by allowing bdev to be NULL in commonly used DAX APIs.
When there is no block device:
* Skip the partition offset calculation in
We want to use interval tree to keep track of per inode dax mappings.
Introduce basic data structures.
Signed-off-by: Vivek Goyal
---
fs/fuse/fuse_i.h | 15 +++
1 file changed, 15 insertions(+)
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index fb49ca9d05ac..a24f31156b47 100644
This list will be used selecting fuse_dax_mapping to free when number of
free mappings drops below a threshold.
Signed-off-by: Vivek Goyal
---
fs/fuse/file.c | 8
fs/fuse/fuse_i.h | 7 +++
fs/fuse/inode.c | 4
3 files changed, 19 insertions(+)
diff --git a/fs/fuse/file.c
Right now dax_writeback_mapping_range() is passed a bdev and dax_dev
is searched from that bdev name.
virtio-fs does not have a bdev. So pass in dax_dev also to
dax_writeback_mapping_range(). If dax_dev is passed in, bdev is not
used otherwise dax_dev is searched using bdev.
Signed-off-by: Vivek
From: Stefan Hajnoczi
Add DAX mmap() support.
Signed-off-by: Stefan Hajnoczi
---
fs/fuse/file.c | 58 +-
1 file changed, 57 insertions(+), 1 deletion(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 41d773ba2c72..5230f2d84a14
How to handle file growing writes. For now, this patch does fallocate() to
grow file and then map it using dax. We need to figure out what's the best
way to handle it.
This patch does fallocate() and setup mapping operations in
fuse_dax_write_iter(), instead of iomap_begin(). I don't have access
From: "Dr. David Alan Gilbert"
Add a 'dax' option and only enable dax when it's on.
Also show "dax" in mount options if filesystem was mounted with dax
enabled.
Signed-off-by: Dr. David Alan Gilbert
Signed-off-by: Vivek Goyal
---
fs/fuse/fuse_i.h| 1 +
fs/fuse/inode.c | 8
Divide the dax memory range into fixed size ranges (2MB for now) and put
them in a list. This will track free ranges. Once an inode requires a
free range, we will take one from here and put it in interval-tree
of ranges assigned to inode.
Signed-off-by: Vivek Goyal
---
fs/fuse/fuse_i.h| 14
From: Stefan Hajnoczi
Experimental QEMU code introduces an MMIO BAR for mapping portions of
files in the virtio-fs device. Map this BAR so that FUSE DAX can access
file contents from the host page cache.
The DAX window is accessed by the fs/dax.c infrastructure and must have
struct pages (at
From: Stefan Hajnoczi
Send normal requests to the device and handle completions.
This is enough to get mount and basic I/O working. The hiprio and
notifications queues still need to be implemented for full FUSE
functionality.
Signed-off-by: Stefan Hajnoczi
---
fs/fuse/fuse_i.h| 3 +
Kick worker to free up some memory when number of free ranges drops below
20% of total free ranges at the time of initialization.
Signed-off-by: Vivek Goyal
---
fs/fuse/file.c | 11 ++-
fs/fuse/fuse_i.h | 9 +
fs/fuse/inode.c | 1 +
3 files changed, 20 insertions(+), 1
With cache=never, we fall back to direct IO. pjdfstest chmod test 12.t was
failing because if a file has setuid bit, it should be cleared if an
unpriviledged user opens it for write and writes to it.
Call fuse_remove_privs() even for direct I/O path.
Signed-off-by: Vivek Goyal
---
Introduce fuse_dax_mapping. This type will be used to keep track of
per inode dax mappings.
Signed-off-by: Vivek Goyal
---
fs/fuse/fuse_i.h | 9 +
1 file changed, 9 insertions(+)
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 345abe9b022f..b9880be690bd 100644
---
Instead of assuming we had the fixed bar for the cache, use the
value from the capabilities.
Signed-off-by: Dr. David Alan Gilbert
---
fs/fuse/virtio_fs.c | 32 +---
1 file changed, 17 insertions(+), 15 deletions(-)
diff --git a/fs/fuse/virtio_fs.c
From: Stefan Hajnoczi
This patch implements basic DAX support. mmap() is not implemented
yet and will come in later patches. This patch looks into implemeting
read/write.
Signed-off-by: Stefan Hajnoczi
Signed-off-by: Dr. David Alan Gilbert
Signed-off-by: Vivek Goyal
---
fs/fuse/file.c
This can be done only from same inode. Also it can be done only for
read/write case and not for fault case. Reason, as of now reclaim requires
holding inode_lock, fuse_inode->i_mmap_sem and fuse_inode->dmap_tree
locks in that order and only read/write path will allow that (and not
fault path).
Truncate number of pages mapped by direct_access() to remain with-in window
size. User might request mapping pages beyond window size.
Signed-off-by: Vivek Goyal
---
fs/fuse/virtio_fs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/fuse/virtio_fs.c
601 - 700 of 1203 matches
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