From: Yafang Shao <laoar.shao@gmail.com>
To: akpm@linux-foundation.org, david@redhat.com, ziy@nvidia.com,
baolin.wang@linux.alibaba.com, lorenzo.stoakes@oracle.com,
Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com,
dev.jain@arm.com, hannes@cmpxchg.org, usamaarif642@gmail.com,
gutierrez.asier@huawei-partners.com, willy@infradead.org,
ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org
Cc: bpf@vger.kernel.org, linux-mm@kvack.org,
Yafang Shao <laoar.shao@gmail.com>
Subject: [RFC PATCH v2 4/5] bpf: Add get_current_comm to bpf_base_func_proto
Date: Tue, 20 May 2025 14:05:02 +0800 [thread overview]
Message-ID: <20250520060504.20251-5-laoar.shao@gmail.com> (raw)
In-Reply-To: <20250520060504.20251-1-laoar.shao@gmail.com>
While testing the BPF based THP adjustment feature, I noticed
bpf_get_current_comm() isn't available in bpf_base_func_proto. As this is a
commonly used helper, we should add it to bpf_base_func_proto.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
kernel/bpf/cgroup.c | 2 --
kernel/bpf/helpers.c | 2 ++
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index 84f58f3d028a..22cd4f54d023 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -2609,8 +2609,6 @@ cgroup_current_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
switch (func_id) {
case BPF_FUNC_get_current_uid_gid:
return &bpf_get_current_uid_gid_proto;
- case BPF_FUNC_get_current_comm:
- return &bpf_get_current_comm_proto;
#ifdef CONFIG_CGROUP_NET_CLASSID
case BPF_FUNC_get_cgroup_classid:
return &bpf_get_cgroup_classid_curr_proto;
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index e3a2662f4e33..2a60522cd66f 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1965,6 +1965,8 @@ bpf_base_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
return &bpf_get_current_pid_tgid_proto;
case BPF_FUNC_get_ns_current_pid_tgid:
return &bpf_get_ns_current_pid_tgid_proto;
+ case BPF_FUNC_get_current_comm:
+ return &bpf_get_current_comm_proto;
default:
break;
}
--
2.43.5
next prev parent reply other threads:[~2025-05-20 6:06 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-20 6:04 [RFC PATCH v2 0/5] mm, bpf: BPF based THP adjustment Yafang Shao
2025-05-20 6:04 ` [RFC PATCH v2 1/5] mm: thp: Add a new mode "bpf" Yafang Shao
2025-05-20 6:05 ` [RFC PATCH v2 2/5] mm: thp: Add hook for BPF based THP adjustment Yafang Shao
2025-05-20 6:05 ` [RFC PATCH v2 3/5] mm: thp: add struct ops " Yafang Shao
2025-05-20 6:05 ` Yafang Shao [this message]
2025-05-20 23:32 ` [RFC PATCH v2 4/5] bpf: Add get_current_comm to bpf_base_func_proto Andrii Nakryiko
2025-05-20 6:05 ` [RFC PATCH v2 5/5] selftests/bpf: Add selftest for THP adjustment Yafang Shao
2025-05-20 6:52 ` [RFC PATCH v2 0/5] mm, bpf: BPF based " Nico Pache
2025-05-20 7:25 ` Yafang Shao
2025-05-20 13:10 ` Matthew Wilcox
2025-05-20 14:08 ` Yafang Shao
2025-05-20 14:22 ` Lorenzo Stoakes
2025-05-20 14:32 ` Usama Arif
2025-05-20 14:35 ` Lorenzo Stoakes
2025-05-20 14:42 ` Matthew Wilcox
2025-05-20 14:56 ` David Hildenbrand
2025-05-21 4:28 ` Yafang Shao
2025-05-20 14:46 ` Usama Arif
2025-05-20 15:00 ` David Hildenbrand
2025-05-20 9:43 ` David Hildenbrand
2025-05-20 9:49 ` Lorenzo Stoakes
2025-05-20 12:06 ` Yafang Shao
2025-05-20 13:45 ` Lorenzo Stoakes
2025-05-20 15:54 ` David Hildenbrand
2025-05-21 4:02 ` Yafang Shao
2025-05-21 3:52 ` Yafang Shao
2025-05-20 11:59 ` Yafang Shao
2025-05-25 3:01 ` Yafang Shao
2025-05-26 7:41 ` Gutierrez Asier
2025-05-26 9:37 ` Yafang Shao
2025-05-26 8:14 ` David Hildenbrand
2025-05-26 9:37 ` Yafang Shao
2025-05-26 10:49 ` David Hildenbrand
2025-05-26 14:53 ` Liam R. Howlett
2025-05-26 15:54 ` Liam R. Howlett
2025-05-26 16:51 ` David Hildenbrand
2025-05-26 17:07 ` Liam R. Howlett
2025-05-26 17:12 ` David Hildenbrand
2025-05-26 20:30 ` Gutierrez Asier
2025-05-26 20:37 ` David Hildenbrand
2025-05-27 5:46 ` Yafang Shao
2025-05-27 7:57 ` David Hildenbrand
2025-05-27 8:13 ` Yafang Shao
2025-05-27 8:30 ` David Hildenbrand
2025-05-27 8:40 ` Yafang Shao
2025-05-27 9:27 ` David Hildenbrand
2025-05-27 9:43 ` Yafang Shao
2025-05-27 12:19 ` David Hildenbrand
2025-05-28 2:04 ` Yafang Shao
2025-05-28 20:32 ` David Hildenbrand
2025-05-26 14:32 ` Zi Yan
2025-05-27 5:53 ` Yafang Shao
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=20250520060504.20251-5-laoar.shao@gmail.com \
--to=laoar.shao@gmail.com \
--cc=Liam.Howlett@oracle.com \
--cc=akpm@linux-foundation.org \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=baolin.wang@linux.alibaba.com \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=david@redhat.com \
--cc=dev.jain@arm.com \
--cc=gutierrez.asier@huawei-partners.com \
--cc=hannes@cmpxchg.org \
--cc=linux-mm@kvack.org \
--cc=lorenzo.stoakes@oracle.com \
--cc=npache@redhat.com \
--cc=ryan.roberts@arm.com \
--cc=usamaarif642@gmail.com \
--cc=willy@infradead.org \
--cc=ziy@nvidia.com \
/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;
as well as URLs for NNTP newsgroup(s).