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From: Dan Carpenter <dan.carpenter@oracle.com>
To: linux-kernel@vger.kernel.org
Cc: linux-tip-commits@vger.kernel.org,
	Yafang Shao <laoar.shao@gmail.com>,
	"Peter Zijlstra (Intel)" <peterz@infradead.org>,
	Mel Gorman <mgorman@suse.de>,
	x86@kernel.org
Subject: Re: [tip: sched/core] sched: Make struct sched_statistics independent of fair sched class
Date: Tue, 21 Sep 2021 09:17:27 +0300	[thread overview]
Message-ID: <20210921061727.GA24828@kili> (raw)
In-Reply-To: <163179357090.25758.13267982301302997472.tip-bot2@tip-bot2>

On Thu, Sep 16, 2021 at 11:59:30AM -0000, tip-bot2 for Yafang Shao wrote:
> @@ -11424,7 +11441,7 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
>  		if (!cfs_rq)
>  			goto err;
>  
> -		se = kzalloc_node(sizeof(struct sched_entity),
> +		se = kzalloc_node(sizeof(struct sched_entity_stats),

This wasn't there in the original patch and it causes a Smatch warning
because "se" is declared as a "sched_entity" but it's allocating a
larger "sched_entity_stats" which contains a sched_entity.

To me, ideally, we would update the type of se.

>  				  GFP_KERNEL, cpu_to_node(i));
>  		if (!se)
>  			goto err_free_rq;

regards,
dan carpenter


  reply	other threads:[~2021-09-21  6:18 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-05 14:35 [PATCH v4 0/8] sched: support schedstats for RT sched class Yafang Shao
2021-09-05 14:35 ` [PATCH v4 1/8] sched, fair: use __schedstat_set() in set_next_entity() Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched/fair: Use " tip-bot2 for Yafang Shao
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-05 14:35 ` [PATCH v4 2/8] sched: make struct sched_statistics independent of fair sched class Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched: Make " tip-bot2 for Yafang Shao
2021-09-21  6:17     ` Dan Carpenter [this message]
2021-09-21  7:17       ` Peter Zijlstra
2021-09-21  7:40         ` Dan Carpenter
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-05 14:35 ` [PATCH v4 3/8] sched: make schedstats helpers " Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched: Make " tip-bot2 for Yafang Shao
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-05 14:35 ` [PATCH v4 4/8] sched: introduce task block time in schedstats Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched: Introduce " tip-bot2 for Yafang Shao
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-05 14:35 ` [PATCH v4 5/8] sched, rt: support sched_stat_runtime tracepoint for RT sched class Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched/rt: Support " tip-bot2 for Yafang Shao
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-05 14:35 ` [PATCH v4 6/8] sched, rt: support schedstats " Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched/rt: Support " tip-bot2 for Yafang Shao
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-05 14:35 ` [PATCH v4 7/8] sched, dl: support sched_stat_runtime tracepoint for deadline " Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched/dl: Support " tip-bot2 for Yafang Shao
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-05 14:35 ` [PATCH v4 8/8] sched, dl: support schedstats " Yafang Shao
2021-09-16 11:59   ` [tip: sched/core] sched/dl: Support " tip-bot2 for Yafang Shao
2021-10-05 14:12   ` tip-bot2 for Yafang Shao
2021-09-10 17:00 ` [PATCH v4 0/8] sched: support schedstats for RT " Peter Zijlstra

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