From: Eric Sandeen <sandeen@sandeen.net>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs-oss <xfs@oss.sgi.com>
Subject: Re: [PATCH] xfs_db: modify bad_features2 when modifying features2
Date: Wed, 02 Dec 2009 09:19:46 -0600 [thread overview]
Message-ID: <4B168592.1090305@sandeen.net> (raw)
In-Reply-To: <20091202150422.GA16338@infradead.org>
Christoph Hellwig wrote:
> On Tue, Dec 01, 2009 at 01:17:55PM -0600, Eric Sandeen wrote:
>> + if (xfs_sb_has_mismatched_features2(&tsb)) {
>> + dbprintf(_("Superblock has mismatched features2 fields, "
>> + "skipping modification\n"));
>> + return 0;
>> + }
>
> However I'm not sure if this one is an all that good idea. It'll make
> all version updates fail if we have a mismatched features2. That way
> people can't use xfs_db to fix it up which seems odd.
>
> To me just printing the warning but not aborting would be the best way
> to inform the user about it.
hm yeah I suppose so.
I wonder if we should catch it somehow on the feature-set shortcuts
like "attr1" but allow it for explicit value sets ...
?
-Eric
>
>> +
>> if ((version & XFS_SB_VERSION_LOGV2BIT) &&
>> !xfs_sb_version_haslogv2(&tsb)) {
>> tsb.sb_logsunit = 1;
>> @@ -564,7 +570,8 @@ do_version(xfs_agnumber_t agno, __uint16_t version, __uint32_t features)
>>
>> tsb.sb_versionnum = version;
>> tsb.sb_features2 = features;
>> - fields |= XFS_SB_VERSIONNUM | XFS_SB_FEATURES2;
>> + tsb.sb_bad_features2 = features;
>> + fields |= XFS_SB_VERSIONNUM | XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2;
>
> This one looks good to me.
>
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next prev parent reply other threads:[~2009-12-02 15:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-01 19:17 [PATCH] xfs_db: modify bad_features2 when modifying features2 Eric Sandeen
2009-12-02 15:04 ` Christoph Hellwig
2009-12-02 15:19 ` Eric Sandeen [this message]
2009-12-02 15:40 ` Eric Sandeen
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