The patch titled
Subject: tools/kvm_stat: use canonical ftrace path
has been added to the -mm mm-nonmm-unstable branch. Its filename is
tools-kvm_stat-use-canonical-ftrace-path.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/tools-kvm_stat-use-canonical-ftrace-path.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Ross Zwisler <zwisler@xxxxxxxxxx>
Subject: tools/kvm_stat: use canonical ftrace path
Date: Mon, 13 Mar 2023 15:17:45 -0600
The canonical location for the tracefs filesystem is at /sys/kernel/tracing.
But, from Documentation/trace/ftrace.rst:
Before 4.1, all ftrace tracing control files were within the debugfs
file system, which is typically located at /sys/kernel/debug/tracing.
For backward compatibility, when mounting the debugfs file system,
the tracefs file system will be automatically mounted at:
/sys/kernel/debug/tracing
A comment in kvm_stat still refers to this older debugfs path, so let's
update it to avoid confusion.
Link: https://lkml.kernel.org/r/20230313211746.1541525-3-zwisler@xxxxxxxxxx
Signed-off-by: Ross Zwisler <zwisler@xxxxxxxxxx>
Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Reviewed-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
Reviewed-by: Mukesh Ojha <quic_mojha@xxxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: "Tobin C. Harding" <me@xxxxxxxx>
Cc: Tycho Andersen <tycho@tycho.pizza>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/tools/kvm/kvm_stat/kvm_stat~tools-kvm_stat-use-canonical-ftrace-path
+++ a/tools/kvm/kvm_stat/kvm_stat
@@ -627,7 +627,7 @@ class TracepointProvider(Provider):
name)'.
All available events have directories under
- /sys/kernel/debug/tracing/events/ which export information
+ /sys/kernel/tracing/events/ which export information
about the specific event. Therefore, listing the dirs gives us
a list of all available events.
_
Patches currently in -mm which might be from zwisler@xxxxxxxxxx are
selftests-use-canonical-ftrace-path.patch
leaking_addresses-also-skip-canonical-ftrace-path.patch
tools-kvm_stat-use-canonical-ftrace-path.patch
