From: Eduard Zingerman <eddyz87@gmail.com>
To: "Kaitao Cheng" <kaitao.cheng@linux.dev>,
"Paul Moore" <paul@paul-moore.com>,
"Eric Paris" <eparis@redhat.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Kumar Kartikeya Dwivedi" <memxor@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"John Fastabend" <john.fastabend@gmail.com>,
"Tejun Heo" <tj@kernel.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Michal Koutný" <mkoutny@suse.com>,
"Maarten Lankhorst" <dev@lankhorst.se>,
"Maxime Ripard" <mripard@kernel.org>,
"Natalie Vock" <natalie.vock@gmx.de>,
"Peter Zijlstra" <peterz@infradead.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Arnaldo Carvalho de Melo" <acme@kernel.org>,
"Namhyung Kim" <namhyung@kernel.org>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Oleg Nesterov" <oleg@redhat.com>,
"Peter Oberparleiter" <oberpar@linux.ibm.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Baoquan He" <baoquan.he@linux.dev>,
"Mike Rapoport" <rppt@kernel.org>,
"Pasha Tatashin" <pasha.tatashin@soleen.com>,
"Pratyush Yadav" <pratyush@kernel.org>,
"Naveen N Rao" <naveen@kernel.org>,
"Josh Poimboeuf" <jpoimboe@kernel.org>,
"Jiri Kosina" <jikos@kernel.org>,
"Miroslav Benes" <mbenes@suse.cz>,
"Petr Mladek" <pmladek@suse.com>, "Will Deacon" <will@kernel.org>,
"Boqun Feng" <boqun@kernel.org>,
"Luis Chamberlain" <mcgrof@kernel.org>,
"Petr Pavlu" <petr.pavlu@suse.com>,
"Daniel Gomez" <da.gomez@kernel.org>,
"Sami Tolvanen" <samitolvanen@google.com>,
"Steffen Klassert" <steffen.klassert@secunet.com>,
"Daniel Jordan" <daniel.m.jordan@oracle.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
"Paul E. McKenney" <paulmck@kernel.org>,
"Josh Triplett" <josh@joshtriplett.org>,
"Frederic Weisbecker" <frederic@kernel.org>,
"Neeraj Upadhyay" <neeraj.upadhyay@kernel.org>,
"Joel Fernandes" <joelagnelf@nvidia.com>,
"Uladzislau Rezki" <urezki@gmail.com>,
"Juri Lelli" <juri.lelli@redhat.com>,
"Vincent Guittot" <vincent.guittot@linaro.org>,
"Kees Cook" <kees@kernel.org>,
"Balbir Singh" <bsingharora@gmail.com>,
"Anna-Maria Behnsen" <anna-maria@linutronix.de>,
"Thomas Gleixner" <tglx@kernel.org>,
"John Stultz" <jstultz@google.com>,
"KP Singh" <kpsingh@kernel.org>,
"Matt Bobrowski" <mattbobrowski@google.com>,
"Nathan Chancellor" <nathan@kernel.org>,
"Martin KaFai Lau" <martin.lau@linux.dev>,
"Song Liu" <song@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
"Dietmar Eggemann" <dietmar.eggemann@arm.com>,
"David Vernet" <void@manifault.com>,
"Steven Rostedt" <rostedt@goodmis.org>
Cc: audit@vger.kernel.org, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org, netdev@vger.kernel.org,
cgroups@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-perf-users@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, kexec@lists.infradead.org,
live-patching@vger.kernel.org, linux-modules@vger.kernel.org,
linux-crypto@vger.kernel.org, linux-pm@vger.kernel.org,
rcu@vger.kernel.org, sched-ext@lists.linux.dev,
llvm@lists.linux.dev, Kaitao Cheng <chengkaitao@kylinos.cn>
Subject: Re: [PATCH v3 5/7] kernel: Use mutable list iterators
Date: Mon, 22 Jun 2026 12:03:46 -0700 [thread overview]
Message-ID: <1979fc81ae7bdaabda8616cd9698a40ef8bbfaee.camel@gmail.com> (raw)
In-Reply-To: <20260622042811.31684-1-kaitao.cheng@linux.dev>
On Mon, 2026-06-22 at 12:28 +0800, Kaitao Cheng wrote:
> From: Kaitao Cheng <chengkaitao@kylinos.cn>
>
> The safe list iteration helpers require callers to provide a temporary
> cursor even when the cursor is only used internally by the loop. This
> leaves many functions with otherwise unused variables whose only purpose
> is to satisfy the old iterator interface.
>
> Use the mutable list iteration helpers for those cases. The mutable
> helpers keep the same removal-safe traversal semantics, while allowing
> the temporary cursor to be internal to the macro when the caller does
> not need to observe it.
>
> Convert list, hlist and llist users under kernel/ where the temporary
> cursor is not used outside the iteration. Keep the explicit cursor form
> where the next entry is still needed by the surrounding code.
>
> No functional change intended.
>
> Signed-off-by: Kaitao Cheng <chengkaitao@kylinos.cn>
> ---
Beside the fact that this does not apply,
I don't see a reason why is this needed for BPF sub-tree.
[...]
next prev parent reply other threads:[~2026-06-22 19:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-22 4:05 [PATCH v3 0/7] Prepare mutable list iterators to cache cursor state Kaitao Cheng
2026-06-22 4:05 ` [PATCH v3 1/7] list: Add mutable iterator variants Kaitao Cheng
2026-06-22 8:42 ` David Laight
2026-06-22 8:51 ` Christian König
2026-06-22 4:05 ` [PATCH v3 2/7] llist: " Kaitao Cheng
2026-06-22 4:15 ` [PATCH v3 3/7] mm: Use mutable list iterators Kaitao Cheng
2026-06-22 4:28 ` [PATCH v3 5/7] kernel: " Kaitao Cheng
2026-06-22 5:22 ` bot+bpf-ci
2026-06-22 19:03 ` Eduard Zingerman [this message]
2026-06-22 4:39 ` [PATCH v3 6/7] initramfs: Use mutable list iterator Kaitao Cheng
2026-06-22 4:41 ` [PATCH v3 7/7] io_uring: Use mutable list iterators Kaitao Cheng
2026-06-22 4:42 ` [PATCH v3 4/7] block: " Kaitao Cheng
2026-06-22 5:28 ` [PATCH v3 0/7] Prepare mutable list iterators to cache cursor state Alexei Starovoitov
2026-06-22 6:15 ` Kaitao Cheng
2026-06-22 10:46 ` Andy Shevchenko
2026-06-22 11:27 ` David Hildenbrand (Arm)
2026-06-22 8:37 ` Jani Nikula
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1979fc81ae7bdaabda8616cd9698a40ef8bbfaee.camel@gmail.com \
--to=eddyz87@gmail.com \
--cc=acme@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=andrii@kernel.org \
--cc=anna-maria@linutronix.de \
--cc=ast@kernel.org \
--cc=audit@vger.kernel.org \
--cc=baoquan.he@linux.dev \
--cc=boqun@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=bsingharora@gmail.com \
--cc=cgroups@vger.kernel.org \
--cc=chengkaitao@kylinos.cn \
--cc=da.gomez@kernel.org \
--cc=daniel.m.jordan@oracle.com \
--cc=daniel@iogearbox.net \
--cc=dave@stgolabs.net \
--cc=davem@davemloft.net \
--cc=dev@lankhorst.se \
--cc=dietmar.eggemann@arm.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=eparis@redhat.com \
--cc=frederic@kernel.org \
--cc=hannes@cmpxchg.org \
--cc=hawk@kernel.org \
--cc=jikos@kernel.org \
--cc=joelagnelf@nvidia.com \
--cc=john.fastabend@gmail.com \
--cc=josh@joshtriplett.org \
--cc=jpoimboe@kernel.org \
--cc=jstultz@google.com \
--cc=juri.lelli@redhat.com \
--cc=kaitao.cheng@linux.dev \
--cc=kees@kernel.org \
--cc=kexec@lists.infradead.org \
--cc=kpsingh@kernel.org \
--cc=kuba@kernel.org \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-modules@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=live-patching@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=mark.rutland@arm.com \
--cc=martin.lau@linux.dev \
--cc=mathieu.desnoyers@efficios.com \
--cc=mattbobrowski@google.com \
--cc=mbenes@suse.cz \
--cc=mcgrof@kernel.org \
--cc=memxor@gmail.com \
--cc=mhiramat@kernel.org \
--cc=mingo@redhat.com \
--cc=mkoutny@suse.com \
--cc=mripard@kernel.org \
--cc=namhyung@kernel.org \
--cc=natalie.vock@gmx.de \
--cc=nathan@kernel.org \
--cc=naveen@kernel.org \
--cc=neeraj.upadhyay@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=oberpar@linux.ibm.com \
--cc=oleg@redhat.com \
--cc=pasha.tatashin@soleen.com \
--cc=paul@paul-moore.com \
--cc=paulmck@kernel.org \
--cc=peterz@infradead.org \
--cc=petr.pavlu@suse.com \
--cc=pmladek@suse.com \
--cc=pratyush@kernel.org \
--cc=rafael@kernel.org \
--cc=rcu@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=rppt@kernel.org \
--cc=samitolvanen@google.com \
--cc=sched-ext@lists.linux.dev \
--cc=song@kernel.org \
--cc=steffen.klassert@secunet.com \
--cc=tglx@kernel.org \
--cc=tj@kernel.org \
--cc=urezki@gmail.com \
--cc=vincent.guittot@linaro.org \
--cc=void@manifault.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox