From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>,
axboe@kernel.dk, brauner@kernel.org, viro@zeniv.linux.org.uk,
jack@suse.cz, dchinner@redhat.com, hch@lst.de, cem@kernel.org,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
hare@suse.de, martin.petersen@oracle.com,
catherine.hoang@oracle.com, mcgrof@kernel.org,
ritesh.list@gmail.com, ojaswin@linux.ibm.com
Subject: Re: [PATCH v6 4/7] xfs: Support FS_XFLAG_ATOMICWRITES
Date: Tue, 1 Oct 2024 10:41:02 +0200 [thread overview]
Message-ID: <20241001084102.GB20648@lst.de> (raw)
In-Reply-To: <20240930160349.GN21853@frogsfrogsfrogs>
On Mon, Sep 30, 2024 at 09:03:49AM -0700, Darrick J. Wong wrote:
> If we're only allowing atomic writes that are 1 fsblock or less, then
> copy on write will work correctly because CoWs are always done with
> fsblock granularity. The ioend remap is also committed atomically.
>
> IOWs, it's forcealign that isn't compatible with reflink and you can
> drop this incompatibility.
That was my thought as well when reading through this patch.
next prev parent reply other threads:[~2024-10-01 8:41 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-30 12:54 [PATCH v6 0/7] block atomic writes for xfs John Garry
2024-09-30 12:54 ` [PATCH v6 1/7] block/fs: Pass an iocb to generic_atomic_write_valid() John Garry
2024-10-01 8:39 ` Christoph Hellwig
2024-09-30 12:54 ` [PATCH v6 2/7] fs: Export generic_atomic_write_valid() John Garry
2024-10-01 8:41 ` Christoph Hellwig
2024-09-30 12:54 ` [PATCH v6 3/7] fs: iomap: Atomic write support John Garry
2024-09-30 15:55 ` Darrick J. Wong
2024-10-01 8:05 ` John Garry
2024-10-01 14:37 ` Darrick J. Wong
2024-09-30 12:54 ` [PATCH v6 4/7] xfs: Support FS_XFLAG_ATOMICWRITES John Garry
2024-09-30 16:03 ` Darrick J. Wong
2024-09-30 16:44 ` Darrick J. Wong
2024-10-01 8:41 ` Christoph Hellwig [this message]
2024-10-01 12:05 ` John Garry
2024-10-01 13:35 ` John Garry
2024-10-03 12:48 ` John Garry
2024-10-03 13:02 ` Christoph Hellwig
2024-10-03 13:19 ` John Garry
2024-09-30 12:54 ` [PATCH v6 5/7] xfs: Support atomic write for statx John Garry
2024-09-30 16:37 ` Darrick J. Wong
2024-10-01 8:29 ` John Garry
2024-10-01 8:43 ` Christoph Hellwig
2024-09-30 12:54 ` [PATCH v6 6/7] xfs: Validate atomic writes John Garry
2024-09-30 16:41 ` Darrick J. Wong
2024-10-01 13:22 ` John Garry
2024-10-01 14:48 ` Darrick J. Wong
2024-10-01 15:48 ` John Garry
2024-09-30 12:54 ` [PATCH v6 7/7] xfs: Support setting FMODE_CAN_ATOMIC_WRITE John Garry
2024-09-30 16:41 ` Darrick J. Wong
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