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From: Eric Sandeen <sandeen@sandeen.net>
To: Dave Chinner <david@fromorbit.com>
Cc: Eric Sandeen <sandeen@redhat.com>, xfs-oss <xfs@oss.sgi.com>
Subject: Re: [PATCH] xfsprogs: fix inadvertent mkfs default change for projid32bit
Date: Mon, 07 Oct 2013 19:46:34 -0500	[thread overview]
Message-ID: <525355EA.9080100@sandeen.net> (raw)
In-Reply-To: <20131008003713.GQ4446@dastard>

On 10/7/13 7:37 PM, Dave Chinner wrote:
> On Sun, Oct 06, 2013 at 03:07:20PM -0500, Eric Sandeen wrote:
>> This commit:
>>
>> f3edb66a mkfs.xfs: validate options for CRCs up front.
>>
>> seems to have inadvertently switched to 32bit project IDs by default:
>>
>> -       int                     projid32bit;
>> +       int                     projid16bit;
>> ...
>> -       projid32bit = 0;
>> +       projid16bit = 0;
>>
>> Switch back to 16 bit project ID by default, at least until we
>> intentionally make that change.
>>
>> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
>> ---
>>
>> diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
>> index eafbed3..ebab09d 100644
>> --- a/mkfs/xfs_mkfs.c
>> +++ b/mkfs/xfs_mkfs.c
>> @@ -965,7 +965,7 @@ main(
>>  	textdomain(PACKAGE);
>>  
>>  	attrversion = 2;
>> -	projid16bit = 0;
>> +	projid16bit = 1;
>>  	blflag = bsflag = slflag = ssflag = lslflag = lssflag = 0;
>>  	blocklog = blocksize = 0;
>>  	sectorlog = lsectorlog = XFS_MIN_SECTORSIZE_LOG;
> 
> And so:
> 
>                 /* 32 bit project quota always on */
>                 /* attr2 always on */
>                 if (projid16bit == 1) {
>                         fprintf(stderr,
> _("32 bit Project IDs always enabled on CRC enabled filesytems\n"));
>                         usage();
>                 }
> 
> That will prevent mkfs from making a CRC enabled filesystem.

Well, that's quite fixable.

> And, realistically, what's the problem with enabling 32 bit project
> IDs by default for all new filesystems in 3.2.0? I'm of the opinion
> we should just leave the code as it is because all kernels since
> 2.6.37 support 32 bit projid and any kernel picking up
> xfsprogs-3.2.0 when it is released will have a kernel that supports
> it....

Doesn't really bother me -

But please send a man page patch.  ;)

And then we need to fix up xfstests... at least one fails as a result of
this IIRC, I'll have to go look again.

I don't care if the defaults change but I'd prefer it to not
have happened accidentally via

"mkfs.xfs: validate options for CRCs up front" ;)

It wasn't documented & didn't seem intentional, so it needs
fixing one way or the other.

-Eric

> Cheers,
> 
> Dave.
> 

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  reply	other threads:[~2013-10-08  0:46 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-06 20:07 [PATCH] xfsprogs: fix inadvertent mkfs default change for projid32bit Eric Sandeen
2013-10-08  0:37 ` Dave Chinner
2013-10-08  0:46   ` Eric Sandeen [this message]
2013-10-08  0:59     ` Dave Chinner

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