From: Christian Brauner <brauner@kernel.org>
To: Oleg Nesterov <oleg@redhat.com>,
Kuniyuki Iwashima <kuniyu@amazon.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
netdev@vger.kernel.org, David Rheinsberg <david@readahead.eu>,
Jan Kara <jack@suse.cz>,
Alexander Mikhalitsyn <alexander@mihalicyn.com>,
Luca Boccassi <bluca@debian.org>,
Lennart Poettering <lennart@poettering.net>,
Daan De Meyer <daan.j.demeyer@gmail.com>,
Mike Yuan <me@yhndnzj.com>,
Christian Brauner <brauner@kernel.org>
Subject: [PATCH RFC 4/4] net, pidfs: enable handing out pidfds for reaped sk->sk_peer_pid
Date: Thu, 24 Apr 2025 14:24:37 +0200 [thread overview]
Message-ID: <20250424-work-pidfs-net-v1-4-0dc97227d854@kernel.org> (raw)
In-Reply-To: <20250424-work-pidfs-net-v1-0-0dc97227d854@kernel.org>
Now that all preconditions are met, allow handing out pidfs for reaped
sk->sk_peer_pids.
Signed-off-by: Christian Brauner <brauner@kernel.org>
---
net/core/sock.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/core/sock.c b/net/core/sock.c
index b969d2210656..017b02b69e8b 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -148,6 +148,8 @@
#include <linux/ethtool.h>
+#include <uapi/linux/pidfd.h>
+
#include "dev.h"
static DEFINE_MUTEX(proto_list_mutex);
@@ -1891,7 +1893,7 @@ int sk_getsockopt(struct sock *sk, int level, int optname,
if (!peer_pid)
return -ENODATA;
- pidfd = pidfd_prepare(peer_pid, 0, &pidfd_file);
+ pidfd = pidfd_prepare(peer_pid, PIDFD_STALE, &pidfd_file);
put_pid(peer_pid);
if (pidfd < 0) {
/*
--
2.47.2
prev parent reply other threads:[~2025-04-24 12:25 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-24 12:24 [PATCH RFC 0/4] net, pidfs: enable handing out pidfds for reaped sk->sk_peer_pid Christian Brauner
2025-04-24 12:24 ` [PATCH RFC 1/4] pidfs: register pid in pidfs Christian Brauner
2025-04-24 13:24 ` Oleg Nesterov
2025-04-24 15:19 ` Christian Brauner
2025-04-24 12:24 ` [PATCH RFC 2/4] net, pidfs: prepare for handing out pidfds for reaped sk->sk_peer_pid Christian Brauner
2025-04-24 12:44 ` David Rheinsberg
2025-04-24 15:19 ` Christian Brauner
2025-04-25 1:08 ` Kuniyuki Iwashima
2025-04-25 8:02 ` Christian Brauner
2025-04-25 1:57 ` Kuniyuki Iwashima
2025-04-25 7:58 ` Christian Brauner
2025-04-24 12:24 ` [PATCH RFC 3/4] pidfs: get rid of __pidfd_prepare() Christian Brauner
2025-04-24 12:24 ` Christian Brauner [this message]
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