linux-kernel - [PATCH v1] sched_ext: initialize kit->cursor.flags

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Message-ID: <20241222154316.67077-1-henry.hj@antgroup.com>
Date: Sun, 22 Dec 2024 23:43:15 +0800
From: "Henry Huang" <henry.hj@...group.com>
To: tj@...nel.org,
	void@...ifault.com
Cc: "谈鉴锋" <henry.tjf@...group.com>,
  "Yan Yan(cailing)" <yanyan.yan@...group.com>,
   <linux-kernel@...r.kernel.org>,
  "Henry Huang" <henry.hj@...group.com>
Subject: [PATCH v1] sched_ext: initialize kit->cursor.flags

struct bpf_iter_scx_dsq *it maybe not initialized.
If we didn't call scx_bpf_dsq_move_set_vtime and scx_bpf_dsq_move_set_slice
before scx_bpf_dsq_move, it would cause unexpected behaviors:
1. Assign a huge slice into p->scx.slice
2. Assign a invalid vtime into p->scx.dsq_vtime

Henry Huang (1):
  sched_ext: initialize kit->cursor.flags

 kernel/sched/ext.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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1.8.3.1