From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Chandan Babu R <chandan.babu@oracle.com>,
"Darrick J. Wong" <djwong@kernel.org>,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 04/13] xfs: move RT inode locking out of __xfs_bunmapi
Date: Thu, 28 Mar 2024 15:15:47 +1100 [thread overview]
Message-ID: <ZgTu86veQ1aWuHDS@dread.disaster.area> (raw)
In-Reply-To: <20240327110318.2776850-5-hch@lst.de>
On Wed, Mar 27, 2024 at 12:03:09PM +0100, Christoph Hellwig wrote:
> __xfs_bunmapi is a bit of an odd place to lock the rtbitmap and rtsummary
> inodes given that it is very high level code. While this only looks ugly
> right now, it will become a problem when supporting delayed allocations
> for RT inodes as __xfs_bunmapi might end up deleting only delalloc extents
> and thus never unlock the rt inodes.
>
> Move the locking into xfs_bmap_del_extent_real just before the call to
> xfs_rtfree_blocks instead and use a new flag in the transaction to ensure
> that the locking happens only once.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Not a great fan of using transaction flags for object state, but
I don't have a better way of doing this.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2024-03-28 4:15 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-27 11:03 bring back RT delalloc support v5 Christoph Hellwig
2024-03-27 11:03 ` [PATCH 01/13] xfs: make XFS_TRANS_LOWMODE match the other XFS_TRANS_ definitions Christoph Hellwig
2024-03-28 3:08 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 02/13] xfs: refactor realtime inode locking Christoph Hellwig
2024-03-28 3:15 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 03/13] xfs: free RT extents after updating the bmap btree Christoph Hellwig
2024-03-27 14:55 ` Darrick J. Wong
2024-03-27 17:03 ` Christoph Hellwig
2024-03-28 4:13 ` Dave Chinner
2024-03-29 4:14 ` Christoph Hellwig
2024-03-30 21:55 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 04/13] xfs: move RT inode locking out of __xfs_bunmapi Christoph Hellwig
2024-03-27 15:07 ` Darrick J. Wong
2024-03-27 17:06 ` Christoph Hellwig
2024-03-27 18:06 ` Darrick J. Wong
2024-03-27 18:12 ` Christoph Hellwig
2024-03-28 4:15 ` Dave Chinner [this message]
2024-03-27 11:03 ` [PATCH 05/13] xfs: block deltas in xfs_trans_unreserve_and_mod_sb must be positive Christoph Hellwig
2024-03-28 4:16 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 06/13] xfs: split xfs_mod_freecounter Christoph Hellwig
2024-03-27 15:12 ` Darrick J. Wong
2024-03-28 4:18 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 07/13] xfs: reinstate RT support in xfs_bmapi_reserve_delalloc Christoph Hellwig
2024-03-28 4:20 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 08/13] xfs: cleanup fdblock/frextent accounting in xfs_bmap_del_extent_delay Christoph Hellwig
2024-03-28 4:22 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 09/13] xfs: support RT inodes in xfs_mod_delalloc Christoph Hellwig
2024-03-27 15:20 ` Darrick J. Wong
2024-03-27 17:05 ` Christoph Hellwig
2024-03-28 4:27 ` Dave Chinner
2024-03-28 4:34 ` Christoph Hellwig
2024-03-28 4:42 ` Dave Chinner
2024-03-28 8:25 ` Christoph Hellwig
2024-03-28 21:25 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 10/13] xfs: look at m_frextents in xfs_iomap_prealloc_size for RT allocations Christoph Hellwig
2024-03-28 4:32 ` Dave Chinner
2024-03-28 4:34 ` Christoph Hellwig
2024-03-27 11:03 ` [PATCH 11/13] xfs: rework splitting of indirect block reservations Christoph Hellwig
2024-03-27 15:14 ` Darrick J. Wong
2024-03-28 4:35 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 12/13] xfs: stop the steal (of data blocks for RT indirect blocks) Christoph Hellwig
2024-03-27 15:18 ` Darrick J. Wong
2024-03-28 4:36 ` Dave Chinner
2024-03-27 11:03 ` [PATCH 13/13] xfs: reinstate delalloc for RT inodes (if sb_rextsize == 1) Christoph Hellwig
2024-03-28 4:39 ` Dave Chinner
-- strict thread matches above, loose matches on Subject: below --
2024-04-22 11:20 bring back RT delalloc support v6 Christoph Hellwig
2024-04-22 11:20 ` [PATCH 04/13] xfs: move RT inode locking out of __xfs_bunmapi Christoph Hellwig
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