From: Wei Yang <richard.weiyang@gmail.com> To: tj@kernel.org, lizefan.x@bytedance.com, hannes@cmpxchg.org Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, Wei Yang <richard.weiyang@gmail.com> Subject: [PATCH 1/4] cgroup: a u16 is enough for cgroup_subsys.depends_on Date: Mon, 4 Oct 2021 08:49:25 +0000 [thread overview] Message-ID: <20211004084928.17622-1-richard.weiyang@gmail.com> (raw) After commit 6e5c830770f9 ("cgroup: make cgroup subsystem masks u16"), we limit the number of subsystem to be less then 16. This applies to cgroup_subsys.depends_on too. Signed-off-by: Wei Yang <richard.weiyang@gmail.com> --- include/linux/cgroup-defs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index db2e147e069f..f6d80896daab 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -705,7 +705,7 @@ struct cgroup_subsys { * not visible to userland until explicitly enabled. The following * specifies the mask of subsystems that this one depends on. */ - unsigned int depends_on; + u16 depends_on; }; extern struct percpu_rw_semaphore cgroup_threadgroup_rwsem; -- 2.23.0
WARNING: multiple messages have this Message-ID (diff)
From: Wei Yang <richard.weiyang-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> To: tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, lizefan.x-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org, hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org Cc: cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Wei Yang <richard.weiyang-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Subject: [PATCH 1/4] cgroup: a u16 is enough for cgroup_subsys.depends_on Date: Mon, 4 Oct 2021 08:49:25 +0000 [thread overview] Message-ID: <20211004084928.17622-1-richard.weiyang@gmail.com> (raw) After commit 6e5c830770f9 ("cgroup: make cgroup subsystem masks u16"), we limit the number of subsystem to be less then 16. This applies to cgroup_subsys.depends_on too. Signed-off-by: Wei Yang <richard.weiyang-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> --- include/linux/cgroup-defs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index db2e147e069f..f6d80896daab 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -705,7 +705,7 @@ struct cgroup_subsys { * not visible to userland until explicitly enabled. The following * specifies the mask of subsystems that this one depends on. */ - unsigned int depends_on; + u16 depends_on; }; extern struct percpu_rw_semaphore cgroup_threadgroup_rwsem; -- 2.23.0
next reply other threads:[~2021-10-04 8:49 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-10-04 8:49 Wei Yang [this message] 2021-10-04 8:49 ` [PATCH 1/4] cgroup: a u16 is enough for cgroup_subsys.depends_on Wei Yang 2021-10-04 8:49 ` [PATCH 2/4] cgroup: reorder cgroup_subsys fields to save 8 byte Wei Yang 2021-10-04 8:49 ` Wei Yang 2021-10-04 8:49 ` [PATCH 3/4] cgroup: simplify the cgroup descendant helper Wei Yang 2021-10-04 8:49 ` Wei Yang 2021-10-04 8:49 ` [PATCH 4/4] cgroup: use parent directly instead of cgroup_parent() Wei Yang 2021-10-04 8:49 ` Wei Yang 2021-10-04 16:30 ` [PATCH 1/4] cgroup: a u16 is enough for cgroup_subsys.depends_on Tejun Heo 2021-10-04 16:30 ` Tejun Heo
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=20211004084928.17622-1-richard.weiyang@gmail.com \ --to=richard.weiyang@gmail.com \ --cc=cgroups@vger.kernel.org \ --cc=hannes@cmpxchg.org \ --cc=linux-kernel@vger.kernel.org \ --cc=lizefan.x@bytedance.com \ --cc=tj@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: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.