Re: [PATCH 2/4] xfs: convert delayed extents to unwritten when zeroing post eof blocks

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On 2024/3/12 20:21, Christoph Hellwig wrote:
> On Mon, Mar 11, 2024 at 08:37:37AM -0700, Darrick J. Wong wrote:
>>> +convert_delay:
>>> +	end_fsb = min(end_fsb, imap.br_startoff + imap.br_blockcount);
>>> +	xfs_iunlock(ip, lockmode);
>>> +	truncate_pagecache_range(inode, offset, XFS_FSB_TO_B(mp, end_fsb));
>>> +	error = xfs_iomap_write_direct(ip, offset_fsb, end_fsb - offset_fsb,
>>> +				       flags, &imap, &seq);
>>
>> I expected this to be a direct call to xfs_bmapi_convert_delalloc.
>> What was the reason not for using that?
> 
> Same here.  The fact that we even convert delalloc reservations in
> xfs_iomap_write_direct is something that doesn't make much sense
> given that we're punching out delalloc reservations before starting
> direct I/O.
> 

OK, sure, I will use xfs_bmapi_convert_delalloc() in my next iteration.

Thanks,
Yi.





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