From: Feng Yang
Most of the judgments also exist in bpf_base_func_deto, remove them.
Signed-off-by: Feng Yang
---
kernel/trace/bpf_trace.c | 72
1 file changed, 72 deletions(-)
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 6b07
Implement the runtime constant infrastructure for riscv. Use this
infrastructure to generate constants to be used by the d_hash()
function.
This is the riscv variant of commit 94a2bc0f611c ("arm64: add 'runtime
constant' support") and commit e3c92e81711d ("runtime constants: add
x86 architecture s
Regressions on arm the shmobile_defconfig builds failed with clang-20 and gcc-13
First seen on the next-20250312
Good: next-20250311
Bad: next-20250312 .. next-20250319
Regressions found on arm:
- gcc-13-shmobile_defconfig
- gcc-8-shmobile_defconfig
- clang-20-shmobile_defconfig
On Wed, Mar 19, 2025 at 04:27:39PM +0100, Andrew Jones wrote:
> On Tue, Mar 18, 2025 at 05:38:45PM -0700, Charlie Jenkins wrote:
> > We have duplicated the definition of the nop instruction in ftrace.h and
> > in jump_label.c. Move this definition into the generic file insn-def.h
> > so that they c
From: Douglas Raillard
The vast majority of ftrace event print fmt consist of a space-separated
field=value pair. Synthetic event currently use a comma-separated
field=value pair, which sticks out from events created via more
classical means.
Align the format of synth events so they look just li
Convert the event_hash array in trace_output.c to use the generic
hashtable implementation from hashtable.h instead of the manually
implemented hash table.
This simplifies the code and makes it more maintainable by using the
standard hashtable API defined in hashtable.h.
Rename EVENT_HASHSIZE to
On Wed, Mar 19, 2025 at 06:29:35PM +0100, Borislav Petkov wrote:
> On Fri, Jan 10, 2025 at 06:40:30PM +, Brendan Jackman wrote:
> > Add a boot time parameter to control the newly added X86_FEATURE_ASI.
> > "asi=on" or "asi=off" can be used in the kernel command line to enable
> > or disable ASI
We have duplicated the definition of the nop instruction in ftrace.h and
in jump_label.c. Move this definition into the generic file insn-def.h
so that they can share the definition with each other and with future
files.
Signed-off-by: Charlie Jenkins
Reviewed-by: Alexandre Ghiti
Tested-by: Alex
Ard brought this to my attention in this patch [1].
I benchmarked this patch on the Nezha D1 (which does not contain Zba or
Zbkb so it uses the default algorithm) by navigating through a large
directory structure. I created a 1000-deep directory structure and then
cd and ls through it. With this p
On Fri, Jan 10, 2025 at 06:40:30PM +, Brendan Jackman wrote:
> Add a boot time parameter to control the newly added X86_FEATURE_ASI.
> "asi=on" or "asi=off" can be used in the kernel command line to enable
> or disable ASI at boot time. If not specified, ASI enablement depends
> on CONFIG_ADDRE
When the client retransmits an operation (for example, because the
server is slow to respond), a new GSS sequence number is associated with
the XID. In the current kernel code the original sequence number is
discarded. Subsequently, if a response to the original request is
received there will be a
Hi,
On 3/19/25 9:51 AM, Oleg Nesterov wrote:
On 03/18, Jeremy Linton wrote:
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -185,6 +185,7 @@ struct uprobes_state {
};
extern void __init uprobes_init(void);
+extern void uprobe_warn(struct task_struct *t, const char *msg);
On Wed, Mar 19, 2025 at 10:13 AM Steven Rostedt wrote:
>
> On Tue, 18 Mar 2025 11:07:00 +0900
> Masami Hiramatsu (Google) wrote:
>
> > > --- a/kernel/trace/trace_events.c
> > > +++ b/kernel/trace/trace_events.c
> > > @@ -790,7 +790,7 @@ static int __ftrace_event_enable_disable(struct
> > > trace
On 03/18, Jeremy Linton wrote:
>
> --- a/include/linux/uprobes.h
> +++ b/include/linux/uprobes.h
> @@ -185,6 +185,7 @@ struct uprobes_state {
> };
>
> extern void __init uprobes_init(void);
> +extern void uprobe_warn(struct task_struct *t, const char *msg);
> extern int set_swbp(struct arch_up
On 19-03-2025 13:37, Masami Hiramatsu (Google) wrote:
On Tue, 18 Mar 2025 18:08:12 +
Douglas RAILLARD wrote:
From: Douglas Raillard
Rename the frehsly exposed trace_synth() to synth_event_trace2() to
comply with the existing naming convention. Since synth_event_trace()
already exists (an
On Wed, 19 Mar 2025 at 17:01, Naresh Kamboju wrote:
>
> Regressions on arm the shmobile_defconfig builds failed with clang-20 and
> gcc-13
>
> First seen on the next-20250312
> Good: next-20250311
> Bad: next-20250312 .. next-20250319
>
> Regression
On Tue, 18 Mar 2025 18:08:12 +
Douglas RAILLARD wrote:
> From: Douglas Raillard
>
> Rename the frehsly exposed trace_synth() to synth_event_trace2() to
> comply with the existing naming convention. Since synth_event_trace()
> already exists (and operates on a "struct trace_event_file *"), u
On Tue, Mar 18, 2025 at 03:48:40PM -0500, Jeremy Linton wrote:
> The uprobe_warn function is limited to the uprobe core,
> but the functionality is useful to report arch specific errors.
>
> Drop the static so it can be used in those code paths.
...and also make use of it in the arm64 code.
sig
On Tue, 18 Mar 2025 18:09:05 +
Douglas RAILLARD wrote:
> From: Douglas Raillard
>
> Currently, using synth_event_delete() will fail if the event is being
> used (tracing in progress), but that is normally done in the module exit
> function. At that stage, failing is problematic as returning
On Tue, Mar 18, 2025 at 03:48:37PM -0500, Jeremy Linton wrote:
> +static inline u64 load_user_gcs(unsigned long __user *addr, int *err)
> +{
> + unsigned long ret;
> + u64 load;
> +
> + if (!access_ok((char __user *)addr, sizeof(load))) {
> + *err = -EFAULT;
> +
On Tue, Mar 18, 2025 at 03:48:35PM -0500, Jeremy Linton wrote:
> Mark Rutland noticed that the task parameter is ignored and
> 'current' is being used instead. Since this is usually
> what its passed, it hasn't yet been causing problems but likely
> will as the code gets more testing.
Reviewed-by:
On 03/18, David Hildenbrand wrote:
>
> + if (unlikely(!folio_test_anon(folio))) {
> + VM_WARN_ON_ONCE(is_register);
> + goto out;
> + }
Don't we need folio_put() before "goto out" ?
Other than that, for this series:
Acked-by: Oleg Nesterov
Hi,
On Tue, 18 Mar 2025 18:09:38 +
Douglas RAILLARD wrote:
> From: Douglas Raillard
>
> The printk format for synth event uses "%.*s" to print string fields,
> but then only passes the pointer part as var arg.
>
> Add the missing precision var arg.
I'm not sure what you want to. Would yo
Hi Charlie,
On Wed, Mar 19, 2025 at 1:39 AM Charlie Jenkins wrote:
>
> Implement the runtime constant infrastructure for riscv. Use this
> infrastructure to generate constants to be used by the d_hash()
> function.
>
> This is the riscv variant of commit 94a2bc0f611c ("arm64: add 'runtime
> const
Hi Charlie,
On Wed, Mar 19, 2025 at 1:39 AM Charlie Jenkins wrote:
>
> We have duplicated the definition of the nop instruction in ftrace.h and
> in jump_label.c. Move this definition into the generic file insn-def.h
> so that they can share the definition with each other and with future
> files.
On Tue, 18 Mar 2025 11:07:00 +0900
Masami Hiramatsu (Google) wrote:
> > --- a/kernel/trace/trace_events.c
> > +++ b/kernel/trace/trace_events.c
> > @@ -790,7 +790,7 @@ static int __ftrace_event_enable_disable(struct
> > trace_event_file *file,
> > clear_bit(EVENT_FILE
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