This patch adds fprobe test cases for new print format type "%pd/%pD".The
test cases test the following items:
1. Test "%pd" type for dput();
2. Test "%pD" type for vfs_read();
This test case require enable CONFIG_HAVE_FUNCTION_ARG_ACCESS_API configuration.
Signed-off-by: Ye Bin
---
This patch adds test cases for new print format type "%pd/%pD".The test cases
test the following items:
1. Test README if add "%pd/%pD" type;
2. Test "%pd" type for dput();
3. Test "%pD" type for vfs_read();
This test case require enable CONFIG_HAVE_FUNCTION_ARG_ACCESS_API configuration.
Similar to printk() '%pd' is for fetch dentry's name from struct dentry's
pointer, and '%pD' is for fetch file's name from struct file's pointer.
Signed-off-by: Ye Bin
---
Documentation/trace/kprobetrace.rst | 8 ++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git
Signed-off-by: Ye Bin
---
kernel/trace/trace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 2a7c6fd934e9..13197d3b86bd 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5745,7 +5745,7 @@ static const char
Support print type '%pd/%pD' for print dentry's or file's name.
Signed-off-by: Ye Bin
---
kernel/trace/trace_fprobe.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/kernel/trace/trace_fprobe.c b/kernel/trace/trace_fprobe.c
index 7d2ddbcfa377..988d68e906ad 100644
---
Similar to '%pd' for printk, use '%pd' for print struct dentry's name.
Signed-off-by: Ye Bin
---
kernel/trace/trace_kprobe.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index c4c6e0e0068b..7cbb43740b4f 100644
---
Similar to '%pD' for printk, use '%pD' for print struct file's name.
Signed-off-by: Ye Bin
---
kernel/trace/trace_probe.c | 57 +++---
1 file changed, 35 insertions(+), 22 deletions(-)
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index
Add traceprobe_expand_dentry_args() to expand dentry args. this API is
prepare to support "%pd" print format for kprobe.
Signed-off-by: Ye Bin
---
kernel/trace/trace_probe.c | 50 ++
kernel/trace/trace_probe.h | 2 ++
2 files changed, 52 insertions(+)
diff
During fault locating, the file name needs to be printed based on the
dentry/file address. The offset needs to be calculated each time, which
is troublesome. Similar to printk, kprobe supports printing file names
for dentry/file addresses.
Diff v5 vs v4:
1. Use glob_match() instead of
On Wed, Jan 24, 2024 at 7:04 PM Heng Qi wrote:
>
>
>
> 在 2024/1/24 下午4:57, Liang Chen 写道:
> > For the XDP_PASS scenario of the XDP path, the skb constructed with
> > xdp_buff does not include the virtio header. Adding the virtio header
> > information back when creating the skb.
> >
> >
On Wed, Jan 24, 2024 at 5:16 PM Xuan Zhuo wrote:
>
> On Wed, 24 Jan 2024 16:57:20 +0800, Liang Chen
> wrote:
> > For the XDP_PASS scenario of the XDP path, the skb constructed with
> > xdp_buff does not include the virtio header. Adding the virtio header
> > information back when creating the
On Thu, 25 Jan 2024 11:48:18 +0800, Jason Wang wrote:
> On Wed, Jan 24, 2024 at 5:16 PM Xuan Zhuo wrote:
> >
> > On Wed, 24 Jan 2024 16:57:20 +0800, Liang Chen
> > wrote:
> > > For the XDP_PASS scenario of the XDP path, the skb constructed with
> > > xdp_buff does not include the virtio
On Wed, Jan 24, 2024 at 5:38 PM Yunjian Wang wrote:
>
> Now the zero-copy feature of AF_XDP socket is supported by some
> drivers, which can reduce CPU utilization on the xdp program.
> This patch set allows tun to support AF_XDP Rx zero-copy feature.
>
> This patch tries to address this by:
> -
On Wed, Jan 24, 2024 at 5:16 PM Xuan Zhuo wrote:
>
> On Wed, 24 Jan 2024 16:57:20 +0800, Liang Chen
> wrote:
> > For the XDP_PASS scenario of the XDP path, the skb constructed with
> > xdp_buff does not include the virtio header. Adding the virtio header
> > information back when creating the
On Thu, Jan 25, 2024 at 3:05 AM Willem de Bruijn
wrote:
>
> Yunjian Wang wrote:
> > Now the zero-copy feature of AF_XDP socket is supported by some
> > drivers, which can reduce CPU utilization on the xdp program.
> > This patch set allows tun to support AF_XDP Rx zero-copy feature.
> >
> > This
Hello:
This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski :
On Tue, 23 Jan 2024 10:27:50 +0300 you wrote:
> Implement port for given CID as input argument instead of using
> hardcoded value '1234'. This allows to run different test instances
> on a single CID. Port argument
On 1/8/2024 6:52 PM, Krishna Chaitanya Chundru wrote:
Hi Steven,
Even though I added your reviewed-by tag, I incorporated changes
mentioned in the previous patch.
Can you please review it once.
Thanks & Regards,
Krishna Chaitanya.
Hi Steven,
Can you please review it once.
Thanks &
On Tue, 23 Jan 2024 22:08:41 +
Beau Belgrave wrote:
> The current code for finding and deleting events assumes that there will
> never be cases when user_events are registered with the same name, but
> different formats. In the future this scenario will exist to ensure
> user programs can be
On Wed, 24 Jan 2024 11:21:45 +0800
"yebin (H)" wrote:
>
>
> On 2024/1/24 9:32, Masami Hiramatsu (Google) wrote:
> > On Tue, 23 Jan 2024 17:21:39 +0800
> > Ye Bin wrote:
> >
> >> This patch adds test cases for new print format type "%pd/%pD".The test
> >> cases
> >> test the following items:
On 1/23/2024 8:46 PM, Andrew Davis wrote:
Use the device lifecycle managed allocation function. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.
Signed-off-by: Andrew Davis
Reviewed-by: Iuliana Prodan
Thanks,
Iulia
---
On 1/23/2024 8:46 PM, Andrew Davis wrote:
Use the device lifecycle managed allocation function. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.
Signed-off-by: Andrew Davis
Reviewed-by: Iuliana Prodan
Thanks,
Iulia
---
On Wed, Jan 24, 2024 at 11:47:32AM +0100, Alexander Potapenko wrote:
> On Thu, Jan 4, 2024 at 9:45 PM Stefan Hajnoczi wrote:
> >
> > On Tue, Jan 02, 2024 at 08:03:46AM -0500, Michael S. Tsirkin wrote:
> > > On Mon, Jan 01, 2024 at 05:38:24AM -0800, syzbot wrote:
> > > > Hello,
> > > >
> > > >
Add a sysfs knob for dax devices to control the memmap_on_memory setting
if the dax device were to be hotplugged as system memory.
The default memmap_on_memory setting for dax devices originating via
pmem or hmem is set to 'false' - i.e. no memmap_on_memory semantics, to
preserve legacy behavior.
There were several places where drivers/dax/bus.c uses 'sprintf' to
print sysfs data. Since a sysfs_emit() helper is available specifically
for this purpose, replace all the sprintf() usage for sysfs with
sysfs_emit() in this file.
Cc: Dan Williams
Reported-by: Greg Kroah-Hartman
Signed-off-by:
In preparation for adding sysfs ABI to toggle memmap_on_memory semantics
for drivers adding memory, export the mhp_supports_memmap_on_memory()
helper. This allows drivers to check if memmap_on_memory support is
available before trying to request it, and display an appropriate
message if it isn't
Add the missing sysfs ABI documentation for the device DAX subsystem.
Various ABI attributes under this have been present since v5.1, and more
have been added over time. In preparation for adding a new attribute,
add this file with the historical details.
Cc: Dan Williams
Signed-off-by: Vishal
The dax driver incorrectly used driver-core device locks to protect
internal dax region and dax device configuration structures. Replace the
device lock usage with a local rwsem, one each for dax region
configuration and dax device configuration. As a result of this
conversion, no device_lock()
This series adds sysfs ABI to control memmap_on_memory behavior for DAX
devices.
Patch 1 replaces incorrect device_lock() usage with a local rwsem - this
was identified during review.
Patch 2 is also a preparatory patch that replaces sprintf() for sysfs
operations with sysfs_emit()
Patch 3 adds
SOCK_SEQPACKET is supported for virtio transport, so do not interpret
such type of socket as unknown.
Signed-off-by: Arseniy Krasnov
---
tools/testing/vsock/vsock_diag_test.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/testing/vsock/vsock_diag_test.c
Yunjian Wang wrote:
> Now the zero-copy feature of AF_XDP socket is supported by some
> drivers, which can reduce CPU utilization on the xdp program.
> This patch set allows tun to support AF_XDP Rx zero-copy feature.
>
> This patch tries to address this by:
> - Use peek_len to consume a
Hi!
> Isn't this simply the case of picking the gc2145 bits from Megis tree?
>
> https://megous.com/git/linux/tree/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi?h=orange-pi-5.10#n410
Well, that, adjusting dts bits to the new driver, testing and
submitting the patch. And it looks
"Ubisectech Sirius" writes:
> Hello.
> We are Ubisectech Sirius Team, the vulnerability lab of China ValiantSec.
> Recently, our team has discovered a issue in Linux kernel
> 6.7.0-g9d1694dc91ce. Attached to the email were a POC file of the issue.
> Stack dump:
> general protection fault,
temperature = <125000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+
+ q6-hvx-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+
+ thermal-sensors = < 4>;
+
+ trips {
+ q6-hvx-crit {
+ temperature = <125000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+
+ video-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <0>;
+
+ thermal-sensors = < 11>;
+
+ trips {
+ video-crit {
+ temperature = <125000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ };
+
timer {
compatible = "arm,armv8-timer";
clock-frequency = <1920>;
---
base-commit: 6fd66bc55f7ed910980b9cc4afe31e1bb066c7e0
change-id: 20240124-sm6350-tsens-c17692ffad3b
Best regards,
--
Luca Weiss
On Tue, 23 Jan 2024 11:07:54 +
Vincent Donnefort wrote:
[...]
> @@ -6592,8 +6641,11 @@ int tracing_set_tracer(struct trace_array *tr, const
> char *buf)
>
> if (t->init) {
> ret = tracer_init(t, tr);
> - if (ret)
> + if (ret) {
> +
On Wed, 24 Jan 2024 10:57:08 +0100
Borislav Petkov wrote:
> On Tue, Jan 23, 2024 at 08:38:53PM -0500, Steven Rostedt wrote:
> > Yes, rasdaemon uses libtraceevent (or a copy of it internally) that
> > reads the format file to find fields. You can safely add fields to the
> > middle of the event
On 1/23/24 22:03, Luca Weiss wrote:
From: Vladimir Lypak
With this reset we can avoid situations like IRQ storms from DSI host
before it even started probing (because boot-loader left DSI IRQs on).
Signed-off-by: Vladimir Lypak
Signed-off-by: Luca Weiss
---
Reviewed-by: Konrad Dybcio
On Wed, 24 Jan 2024 10:46:10 +0800
"yebin (H)" wrote:
>
>
> On 2024/1/23 22:40, Masami Hiramatsu (Google) wrote:
> > On Tue, 23 Jan 2024 17:21:35 +0800
> > Ye Bin wrote:
> >
> >> Similar to '%pd' for printk, use '%pd' for print struct dentry's name.
> >>
> >> Signed-off-by: Ye Bin
> >> ---
>
On 1/23/24 22:03, Luca Weiss wrote:
From: Vladimir Lypak
Add an entry in the gcc driver for the MDSS_BCR reset found on MSM8953.
Signed-off-by: Vladimir Lypak
[luca: expand commit message, move entry]
Signed-off-by: Luca Weiss
---
I found some more definitions in lk2nd
88:#define
在 2024/1/24 下午4:57, Liang Chen 写道:
For the XDP_PASS scenario of the XDP path, the skb constructed with
xdp_buff does not include the virtio header. Adding the virtio header
information back when creating the skb.
Signed-off-by: Liang Chen
---
drivers/net/virtio_net.c | 6 ++
1 file
On Thu, Jan 4, 2024 at 9:45 PM Stefan Hajnoczi wrote:
>
> On Tue, Jan 02, 2024 at 08:03:46AM -0500, Michael S. Tsirkin wrote:
> > On Mon, Jan 01, 2024 at 05:38:24AM -0800, syzbot wrote:
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > HEAD commit:fbafc3e621c3 Merge
On Tue, Jan 23, 2024 at 08:38:53PM -0500, Steven Rostedt wrote:
> Yes, rasdaemon uses libtraceevent (or a copy of it internally) that
> reads the format file to find fields. You can safely add fields to the
> middle of the event structure and the parsing will be just fine.
Should we worry about
Now the zero-copy feature of AF_XDP socket is supported by some
drivers, which can reduce CPU utilization on the xdp program.
This patch set allows tun to support AF_XDP Rx zero-copy feature.
This patch tries to address this by:
- Use peek_len to consume a xsk->desc and get xsk->desc length.
-
Now dma mappings are used by the physical NICs. However the vNIC
maybe do not need them. So remove non-zero 'dma_page' check in
xp_assign_dev.
Signed-off-by: Yunjian Wang
---
net/xdp/xsk_buff_pool.c | 7 ---
1 file changed, 7 deletions(-)
diff --git a/net/xdp/xsk_buff_pool.c
Now, some drivers support the zero-copy feature of AF_XDP sockets,
which can significantly reduce CPU utilization for XDP programs.
This patch set enables tun to also support the AF_XDP Rx zero-copy
feature, with the following changes:
1. The unnecessary 'dma_page' check has been removed when
On Wed, 24 Jan 2024 16:57:20 +0800, Liang Chen
wrote:
> For the XDP_PASS scenario of the XDP path, the skb constructed with
> xdp_buff does not include the virtio header. Adding the virtio header
> information back when creating the skb.
>
> Signed-off-by: Liang Chen
> ---
>
On Wed, 24 Jan 2024 16:57:19 +0800, Liang Chen
wrote:
> The xdp program may overwrite the inline virtio header. To ensure the
> integrity of the virtio header, it is saved in a data structure that
> wraps both the xdp_buff and the header before running the xdp program.
>
> Signed-off-by: Liang
The RSS hash report is a feature that's part of the virtio specification.
Currently, virtio backends like qemu, vdpa (mlx5), and potentially vhost
(still a work in progress as per [1]) support this feature. While the
capability to obtain the RSS hash has been enabled in the normal path,
it's
For the XDP_PASS scenario of the XDP path, the skb constructed with
xdp_buff does not include the virtio header. Adding the virtio header
information back when creating the skb.
Signed-off-by: Liang Chen
---
drivers/net/virtio_net.c | 6 ++
1 file changed, 6 insertions(+)
diff --git
The xdp program may overwrite the inline virtio header. To ensure the
integrity of the virtio header, it is saved in a data structure that
wraps both the xdp_buff and the header before running the xdp program.
Signed-off-by: Liang Chen
---
drivers/net/virtio_net.c | 43
The RSS hash report is a feature that's part of the virtio specification.
Currently, virtio backends like qemu and vdpa (mlx5) support it(potentially
vhost). While the capability to obtain the RSS hash has been enabled in the
normal path, it's currently missing in the XDP path.
Changes from v1:
Hello,
On Mon, Jan 22, 2024 at 08:55:39PM -0500, Steven Rostedt wrote:
> On Tue, 23 Jan 2024 09:44:43 +0800
> George Guo wrote:
>
> > There are two reasons of percpu_alloc failed without warnings:
> >
> > 1. do_warn is false
> > 2. do_warn is true and warn_limit is reached the limit.
>
> Yes
On Wed, Jan 24, 2024 at 2:06 PM Xuan Zhuo wrote:
>
> On Wed, 24 Jan 2024 10:04:51 +0800, Liang Chen
> wrote:
> > On Mon, Jan 22, 2024 at 7:10 PM Heng Qi wrote:
> > >
> > > Hi Liang Chen,
> > >
> > > 在 2024/1/22 下午6:22, Liang Chen 写道:
> > > > The RSS hash report is a feature that's part of the
On Wed, Jan 24, 2024 at 10:12 AM Jason Wang wrote:
>
> On Mon, Jan 22, 2024 at 6:23 PM Liang Chen wrote:
> >
> > The RSS hash report is a feature that's part of the virtio specification.
> > Currently, virtio backends like qemu, vdpa (mlx5), and potentially vhost
> > (still a work in progress as
53 matches
Mail list logo
