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From: Yonghong Song <>
To: Juhee Kang <>,
	Daniel Borkmann <>,
	Alexei Starovoitov <>,
	Andrii Nakryiko <>
Cc: <>, <>
Subject: Re: [bpf-next 1/2] samples: bpf: Fix tracex7 error raised on the missing argument
Date: Sun, 25 Jul 2021 19:34:03 -0700	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On 7/24/21 8:21 AM, Juhee Kang wrote:
> The current behavior of 'tracex7' doesn't consist with other bpf samples
> tracex{1..6}. Other samples do not require any argument to run with, but
> tracex7 should be run with btrfs device argument. (it should be executed
> with
> Currently, tracex7 doesn't have any description about how to run this
> program and raises an unexpected error. And this result might be
> confusing since users might not have a hunch about how to run this
> program.
>      // Current behavior
>      # ./tracex7
>      sh: 1: Syntax error: word unexpected (expecting ")")
>      // Fixed behavior
>      # ./tracex7
>      ERROR: Run with the btrfs device argument!
> In order to fix this error, this commit adds logic to report a message
> and exit when running this program with a missing argument.
> Additionally in, there is a problem with
> multiple directory(tmpmnt) creation. So in this commit adds a line with
> removing the directory with every execution.
> Signed-off-by: Juhee Kang <>

Acked-by: Yonghong Song <>

  parent reply	other threads:[~2021-07-26  2:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-24 15:21 [bpf-next 1/2] samples: bpf: Fix tracex7 error raised on the missing argument Juhee Kang
2021-07-24 15:21 ` [bpf-next 2/2] samples: bpf: Add the omitted xdp samples to .gitignore Juhee Kang
2021-07-26  2:34   ` Yonghong Song
2021-07-26  2:34 ` Yonghong Song [this message]
2021-07-26 20:08 ` [bpf-next 1/2] samples: bpf: Fix tracex7 error raised on the missing argument Andrii Nakryiko
2021-07-27  3:32   ` Juhee Kang

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