From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Carlos Maiolino <cem@kernel.org>,
linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
Oleksandr Natalenko <oleksandr@natalenko.name>,
Pavel Reichl <preichl@redhat.com>,
Vlastimil Babka <vbabka@suse.cz>,
Thorsten Leemhuis <linux@leemhuis.info>
Subject: Re: [PATCH 4/3] xfs: fix locking in xchk_nlinks_collect_dir
Date: Thu, 16 Oct 2025 22:48:07 -0700 [thread overview]
Message-ID: <aPHYl6uFyxQjhwP5@infradead.org> (raw)
In-Reply-To: <20251016162520.GB3356773@frogsfrogsfrogs>
> +static uint
> +xchk_nlinks_ilock_dir(
> + struct xfs_inode *ip)
> +{
> + uint lock_mode = XFS_ILOCK_SHARED;
> +
> + if (xfs_need_iread_extents(&ip->i_df))
> + lock_mode = XFS_ILOCK_EXCL;
> +
> + if (xfs_has_parent(ip->i_mount) && xfs_inode_has_attr_fork(ip) &&
> + xfs_need_iread_extents(&ip->i_af))
> + lock_mode = XFS_ILOCK_EXCL;
Please add a comment explaining the need for the conditions, this is too
much black magic otherwise.
next prev parent reply other threads:[~2025-10-17 5:48 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-15 5:01 [PATCH v2 1/3] xfs: don't set bt_nr_sectors to a negative number Darrick J. Wong
2025-10-15 5:03 ` [PATCH v2 2/3] xfs: always warn about deprecated mount options Darrick J. Wong
2025-10-15 5:04 ` [PATCH v2 3/3] xfs: quietly ignore " Darrick J. Wong
2025-10-15 8:07 ` Vlastimil Babka
2025-10-15 15:37 ` Darrick J. Wong
2025-10-17 5:45 ` Christoph Hellwig
2025-10-17 5:46 ` Christoph Hellwig
2025-10-16 16:25 ` [PATCH 4/3] xfs: fix locking in xchk_nlinks_collect_dir Darrick J. Wong
2025-10-17 5:48 ` Christoph Hellwig [this message]
2025-10-21 17:57 ` Darrick J. Wong
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