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From: Eric Sandeen <sandeen@sandeen.net>
To: xfs@oss.sgi.com
Cc: "linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
	fstests <fstests@vger.kernel.org>
Subject: Re: [PATCH] xfs_quota: allow operation on foreign filesystem types
Date: Fri, 15 Jan 2016 22:41:15 -0600	[thread overview]
Message-ID: <5699C9EB.10307@sandeen.net> (raw)
In-Reply-To: <1452729788-5396-1-git-send-email-david@fromorbit.com>

On 1/13/16 6:03 PM, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
> 
> This allows xfs_quota to be used on ext4 for project quota testing
> in xfstests.
> 
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
> ---

...


> diff --git a/quota/report.c b/quota/report.c
> index c77b24f..eaf3a67 100644
> --- a/quota/report.c
> +++ b/quota/report.c
> @@ -658,6 +658,7 @@ report_init(void)
>  	dump_cmd.args = _("[-gpu] [-f file]");
>  	dump_cmd.oneline = _("dump quota information for backup utilities");
>  	dump_cmd.help = dump_help;
> +	dump_cmd.flags = CMD_FLAG_FOREIGN_OK;
>  
>  	report_cmd.name = "report";
>  	report_cmd.altname = "repquota";
> @@ -668,6 +669,7 @@ report_init(void)
>  	report_cmd.args = _("[-bir] [-gpu] [-ahnt] [-f file]");
>  	report_cmd.oneline = _("report filesystem quota information");
>  	report_cmd.help = report_help;
> +	report_cmd.flags = CMD_FLAG_FOREIGN_OK;

There's another

	report_cmd.flags = CMD_FLAG_GLOBAL;

above this which gets overwritten here; this command needs to be:

	report_cmd.flags = CMD_FLAG_GLOBAL | CMD_FLAG_FOREIGN_OK;

or else

	xfs_quota -x -c "report -a"

goes bonkers, iterating in nested loops and printing filesystems multiple times.

It also seems that "report -a" should not be changing defaults this way such
that non-xfs filesystems will get printed; this will be an unexpected change
to default behavior.

Perhaps a top-level "-f" option to explicitly enable foreign filesystem detection
would be best?

-Eric

WARNING: multiple messages have this Message-ID (diff)
From: Eric Sandeen <sandeen@sandeen.net>
To: xfs@oss.sgi.com
Cc: "linux-ext4@vger.kernel.org" <linux-ext4@vger.kernel.org>,
	fstests <fstests@vger.kernel.org>
Subject: Re: [PATCH] xfs_quota: allow operation on foreign filesystem types
Date: Fri, 15 Jan 2016 22:41:15 -0600	[thread overview]
Message-ID: <5699C9EB.10307@sandeen.net> (raw)
In-Reply-To: <1452729788-5396-1-git-send-email-david@fromorbit.com>

On 1/13/16 6:03 PM, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
> 
> This allows xfs_quota to be used on ext4 for project quota testing
> in xfstests.
> 
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
> ---

...


> diff --git a/quota/report.c b/quota/report.c
> index c77b24f..eaf3a67 100644
> --- a/quota/report.c
> +++ b/quota/report.c
> @@ -658,6 +658,7 @@ report_init(void)
>  	dump_cmd.args = _("[-gpu] [-f file]");
>  	dump_cmd.oneline = _("dump quota information for backup utilities");
>  	dump_cmd.help = dump_help;
> +	dump_cmd.flags = CMD_FLAG_FOREIGN_OK;
>  
>  	report_cmd.name = "report";
>  	report_cmd.altname = "repquota";
> @@ -668,6 +669,7 @@ report_init(void)
>  	report_cmd.args = _("[-bir] [-gpu] [-ahnt] [-f file]");
>  	report_cmd.oneline = _("report filesystem quota information");
>  	report_cmd.help = report_help;
> +	report_cmd.flags = CMD_FLAG_FOREIGN_OK;

There's another

	report_cmd.flags = CMD_FLAG_GLOBAL;

above this which gets overwritten here; this command needs to be:

	report_cmd.flags = CMD_FLAG_GLOBAL | CMD_FLAG_FOREIGN_OK;

or else

	xfs_quota -x -c "report -a"

goes bonkers, iterating in nested loops and printing filesystems multiple times.

It also seems that "report -a" should not be changing defaults this way such
that non-xfs filesystems will get printed; this will be an unexpected change
to default behavior.

Perhaps a top-level "-f" option to explicitly enable foreign filesystem detection
would be best?

-Eric

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  reply	other threads:[~2016-01-16  4:41 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-14  0:03 [PATCH] xfs_quota: allow operation on foreign filesystem types Dave Chinner
2016-01-14  0:03 ` Dave Chinner
2016-01-16  4:41 ` Eric Sandeen [this message]
2016-01-16  4:41   ` Eric Sandeen

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