linux-kernel - Re: [PATCH] lost path_put in perf_fill_ns_link

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Message-ID: <d2acbba4-4508-f304-2101-dbfe3f0a9f55@virtuozzo.com>
Date:   Mon, 6 Nov 2017 09:34:46 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     linux-kernel@...r.kernel.org,
        Hari Bathini <hbathini@...ux.vnet.ibm.com>
Cc:     Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] lost path_put in perf_fill_ns_link_info

Dear Hari,
I did not found where your patch decreases mnt counter,
it seems for me you have lost path_put in perf_fill_ns_link_info().

Thank you,
	Vasily Averin

On 2017-11-06 09:22, Vasily Averin wrote:
> Fixes: commit e422267322cd ("perf: Add PERF_RECORD_NAMESPACES to include namespaces related info")
> Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
> ---
>  kernel/events/core.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/kernel/events/core.c b/kernel/events/core.c
> index 10cdb9c..ab5ac84 100644
> --- a/kernel/events/core.c
> +++ b/kernel/events/core.c
> @@ -6756,6 +6756,7 @@ static void perf_fill_ns_link_info(struct perf_ns_link_info *ns_link_info,
>  		ns_inode = ns_path.dentry->d_inode;
>  		ns_link_info->dev = new_encode_dev(ns_inode->i_sb->s_dev);
>  		ns_link_info->ino = ns_inode->i_ino;
> +		path_put(&ns_path);
>  	}
>  }
>  
>