From: "Darrick J. Wong" <djwong@kernel.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Chandan Babu R <chandan.babu@oracle.com>,
Carlos Maiolino <cem@kernel.org>,
Christian Brauner <brauner@kernel.org>,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: fix stale delalloc punching for COW I/O v4
Date: Sun, 6 Oct 2024 23:28:41 -0700 [thread overview]
Message-ID: <20241007062841.GP21877@frogsfrogsfrogs> (raw)
In-Reply-To: <20241007054101.GA32670@lst.de>
On Mon, Oct 07, 2024 at 07:41:01AM +0200, Christoph Hellwig wrote:
> On Sat, Oct 05, 2024 at 08:53:12AM -0700, Darrick J. Wong wrote:
> > Hmmm so I tried applying this series, but now I get this splat:
> >
> > [ 217.170122] run fstests xfs/574 at 2024-10-04 16:36:30
>
> I don't. What xfstests tree is this with?
Hum. My latest djwong-wtf xfstests tree. You might have to have the
new funshare patch I sent for fsstress, though iirc that's already in my
-wtf branch.
> > I think this series needs to assert that the invalidatelock is held
> > (instead of taking it) for the IOMAP_UNSHARE case too, since UNSHARE is
> > called from fallocate, which has already taken the MMAPLOCK.
>
> Yes. I'll look into fixing it, but so far I haven't managed to
> reproduce the actual splat.
<nod>
--D
next prev parent reply other threads:[~2024-10-07 6:28 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-24 7:40 fix stale delalloc punching for COW I/O v4 Christoph Hellwig
2024-09-24 7:40 ` [PATCH 01/10] iomap: factor out a iomap_last_written_block helper Christoph Hellwig
2024-09-24 14:58 ` Darrick J. Wong
2024-09-24 7:40 ` [PATCH 02/10] iomap: remove iomap_file_buffered_write_punch_delalloc Christoph Hellwig
2024-09-24 7:40 ` [PATCH 03/10] iomap: move locking out of iomap_write_delalloc_release Christoph Hellwig
2024-09-24 7:40 ` [PATCH 04/10] xfs: factor out a xfs_file_write_zero_eof helper Christoph Hellwig
2024-09-24 7:40 ` [PATCH 05/10] xfs: take XFS_MMAPLOCK_EXCL xfs_file_write_zero_eof Christoph Hellwig
2024-09-24 7:40 ` [PATCH 06/10] xfs: zeroing already holds invalidate_lock Christoph Hellwig
2024-09-24 7:40 ` [PATCH 07/10] xfs: support the COW fork in xfs_bmap_punch_delalloc_range Christoph Hellwig
2024-09-24 7:40 ` [PATCH 08/10] xfs: share more code in xfs_buffered_write_iomap_begin Christoph Hellwig
2024-09-24 7:40 ` [PATCH 09/10] xfs: set IOMAP_F_SHARED for all COW fork allocations Christoph Hellwig
2024-09-24 7:40 ` [PATCH 10/10] xfs: punch delalloc extents from the COW fork for COW writes Christoph Hellwig
2024-10-05 15:53 ` fix stale delalloc punching for COW I/O v4 Darrick J. Wong
2024-10-07 5:41 ` Christoph Hellwig
2024-10-07 6:28 ` Darrick J. Wong [this message]
2024-10-07 6:46 ` Christoph Hellwig
2024-10-07 15:20 ` Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2024-09-23 15:28 fix stale delalloc punching for COW I/O v3 Christoph Hellwig
2024-09-23 15:28 ` [PATCH 01/10] iomap: factor out a iomap_last_written_block helper Christoph Hellwig
2024-09-23 15:53 ` Darrick J. Wong
2024-09-24 5:45 ` Christoph Hellwig
2024-09-23 15:28 ` [PATCH 02/10] iomap: remove iomap_file_buffered_write_punch_delalloc Christoph Hellwig
2024-09-23 16:18 ` Darrick J. Wong
2024-09-23 22:43 ` Dave Chinner
2024-09-24 5:55 ` Christoph Hellwig
2024-09-24 6:05 ` Darrick J. Wong
2024-09-24 6:10 ` Christoph Hellwig
2024-09-23 15:28 ` [PATCH 03/10] iomap: move locking out of iomap_write_delalloc_release Christoph Hellwig
2024-09-23 16:19 ` Darrick J. Wong
2024-09-23 15:28 ` [PATCH 04/10] xfs: factor out a xfs_file_write_zero_eof helper Christoph Hellwig
2024-09-23 16:20 ` Darrick J. Wong
2024-09-23 15:28 ` [PATCH 05/10] xfs: take XFS_MMAPLOCK_EXCL xfs_file_write_zero_eof Christoph Hellwig
2024-09-23 15:28 ` [PATCH 06/10] xfs: zeroing already holds invalidate_lock Christoph Hellwig
2024-09-23 16:22 ` Darrick J. Wong
2024-09-24 5:44 ` Christoph Hellwig
2024-09-23 15:28 ` [PATCH 07/10] xfs: support the COW fork in xfs_bmap_punch_delalloc_range Christoph Hellwig
2024-09-23 15:28 ` [PATCH 08/10] xfs: share more code in xfs_buffered_write_iomap_begin Christoph Hellwig
2024-09-23 15:28 ` [PATCH 09/10] xfs: set IOMAP_F_SHARED for all COW fork allocations Christoph Hellwig
2024-09-23 15:28 ` [PATCH 10/10] xfs: punch delalloc extents from the COW fork for COW writes Christoph Hellwig
2024-09-25 9:19 ` fix stale delalloc punching for COW I/O v3 Christian Brauner
2024-09-25 9:24 ` fix stale delalloc punching for COW I/O v4 Christian Brauner
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