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From: John Garry <john.g.garry@oracle.com>
To: Christoph Hellwig <hch@lst.de>
Cc: axboe@kernel.dk, brauner@kernel.org, djwong@kernel.org,
	viro@zeniv.linux.org.uk, jack@suse.cz, dchinner@redhat.com,
	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 v8 6/7] xfs: Validate atomic writes
Date: Tue, 15 Oct 2024 13:25:07 +0100	[thread overview]
Message-ID: <426dae12-3f15-4097-bf83-fd50007a98bd@oracle.com> (raw)
In-Reply-To: <20241015121637.GC32583@lst.de>

On 15/10/2024 13:16, Christoph Hellwig wrote:
> On Tue, Oct 15, 2024 at 09:01:41AM +0000, John Garry wrote:
>> Validate that an atomic write adheres to length/offset rules. Currently
>> we can only write a single FS block.
>> +	if (iocb->ki_flags & IOCB_ATOMIC) {
>> +		if (ocount != ip->i_mount->m_sb.sb_blocksize)
>> +			return -EINVAL;
> Maybe throw in a comment here why we are currently limited to atomic
> writes of exactly the file system block size and don't allow smaller
> values.
> 

ok

> Otherwise this looks good to me.

cheers

  reply	other threads:[~2024-10-15 12:25 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-15  9:01 [PATCH v8 0/7] block atomic writes for xfs John Garry
2024-10-15  9:01 ` [PATCH v8 1/7] block/fs: Pass an iocb to generic_atomic_write_valid() John Garry
2024-10-15  9:01 ` [PATCH v8 2/7] fs/block: Check for IOCB_DIRECT in generic_atomic_write_valid() John Garry
2024-10-15  9:01 ` [PATCH v8 3/7] fs: Export generic_atomic_write_valid() John Garry
2024-10-15  9:01 ` [PATCH v8 4/7] fs: iomap: Atomic write support John Garry
2024-10-15 12:12   ` Christoph Hellwig
2024-10-15 12:24     ` John Garry
2024-10-15  9:01 ` [PATCH v8 5/7] xfs: Support atomic write for statx John Garry
2024-10-15 12:15   ` Christoph Hellwig
2024-10-15 12:22     ` John Garry
2024-10-15 12:33       ` Christoph Hellwig
2024-10-15  9:01 ` [PATCH v8 6/7] xfs: Validate atomic writes John Garry
2024-10-15 12:16   ` Christoph Hellwig
2024-10-15 12:25     ` John Garry [this message]
2024-10-15  9:01 ` [PATCH v8 7/7] xfs: Support setting FMODE_CAN_ATOMIC_WRITE John Garry
2024-10-15 12:16   ` Christoph Hellwig

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