From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: John Garry <john.g.garry@oracle.com>,
Christoph Hellwig <hch@infradead.org>,
chandan.babu@oracle.com, djwong@kernel.org,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 1/2] xfs: Clear W=1 warning in xfs_iwalk_run_callbacks():
Date: Thu, 25 Apr 2024 23:09:58 -0700 [thread overview]
Message-ID: <ZitFNj3Lz7u70TVg@infradead.org> (raw)
In-Reply-To: <ZirnfaFFqqyaUdQv@dread.disaster.area>
On Fri, Apr 26, 2024 at 09:30:05AM +1000, Dave Chinner wrote:
> ASSERT(xfs_verify_agbno(args->pag, acur->rec_bno + acur->rec_len));
>
> or:
>
> ASSERT(xfs_verify_agbext(args->pag, acur->rec_bno, acur->rec_len));
>
> The latter is better, as it verifies both the start and the end of
> the extent are within the bounds of the AG and catches overflows...
Yupp. That's what I mean with my original comment - once you start
thinking a little bigger there is usually a much better option than
these __maybe_unused hacks.
Using perag fields and helpers instead of raw buffer access would
also benefit a few other places in the allocator as well.
next prev parent reply other threads:[~2024-04-26 6:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-25 12:08 [PATCH 0/2] xfs: Clear a couple of W=1 warnings John Garry
2024-04-25 12:08 ` [PATCH 1/2] xfs: Clear W=1 warning in xfs_iwalk_run_callbacks(): John Garry
2024-04-25 12:17 ` Christoph Hellwig
2024-04-25 13:24 ` John Garry
2024-04-25 13:30 ` Christoph Hellwig
2024-04-25 13:33 ` John Garry
2024-04-25 15:37 ` John Garry
2024-04-25 16:17 ` Darrick J. Wong
2024-04-25 23:30 ` Dave Chinner
2024-04-26 6:09 ` Christoph Hellwig [this message]
2024-05-01 8:10 ` John Garry
2024-04-25 12:08 ` [PATCH 2/2] xfs: Clear W=1 warning in xfs_trans_unreserve_and_mod_sb(): John Garry
2024-04-25 12:18 ` Christoph Hellwig
2024-04-25 13:35 ` John Garry
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