From: Bradley Morgan <brads@mainlining.org>
To: Balbir Singh <balbirs@nvidia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Bradley Morgan <brads@mainlining.org>
Subject: [PATCH 3/4] taskstats: reuse na in cgroupstats_user_cmd()
Date: Sun, 1 Nov 2026 00:57:42 +0000 [thread overview]
Message-ID: <20261101005743.3022780-3-brads@mainlining.org> (raw)
In-Reply-To: <20261101005743.3022780-1-brads@mainlining.org>
cgroupstats_user_cmd() already pulled CGROUPSTATS_CMD_ATTR_FD into na to
check that the user sent it, then indexes info->attrs[] a second time to
read the value out of the very same attribute. Read it from na.
No functional change.
Signed-off-by: Bradley Morgan <brads@mainlining.org>
---
kernel/taskstats.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 35e9fa71526cc..9e11f92216861 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -417,7 +417,7 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
if (!na)
return -EINVAL;
- fd = nla_get_u32(info->attrs[CGROUPSTATS_CMD_ATTR_FD]);
+ fd = nla_get_u32(na);
CLASS(fd, f)(fd);
if (fd_empty(f))
return -EBADF;
--
2.53.0
next prev parent reply other threads:[~2026-11-01 0:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-01 0:56 [PATCH 0/4] taskstats: four more tidy-ups in the genl path Bradley Morgan
2026-11-01 0:57 ` [PATCH 1/4] taskstats: use nla_put_u32() in mk_reply() Bradley Morgan
2026-11-01 0:57 ` [PATCH 2/4] taskstats: take the inode once in exe_add_tsk() Bradley Morgan
2026-11-01 0:57 ` Bradley Morgan [this message]
2026-11-01 0:57 ` [PATCH 4/4] taskstats: use div_u64() for the elapsed time in tgid_stats_add_task() Bradley Morgan
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