Re: [PATCHv9 4/6] iomap: Refactor iomap_write_delalloc_punch() function out

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Matthew Wilcox <willy@xxxxxxxxxxxxx> writes:

> On Sat, Jun 10, 2023 at 05:09:05PM +0530, Ritesh Harjani (IBM) wrote:
>> +static int iomap_write_delalloc_punch(struct inode *inode, struct folio *folio,
>> +		loff_t *punch_start_byte, loff_t start_byte, loff_t end_byte,
>> +		int (*punch)(struct inode *inode, loff_t offset, loff_t length))
>
> I can't help but feel that a
>
> typedef iomap_punch_t(struct inode *, loff_t offset, loff_t length);
>
> would make all of this easier to read.
>

Sure. Make sense.

>> +	/*
>> +	 * Make sure the next punch start is correctly bound to
>> +	 * the end of this data range, not the end of the folio.
>> +	 */
>> +	*punch_start_byte = min_t(loff_t, end_byte,
>> +				  folio_next_index(folio) << PAGE_SHIFT);
>
> 	*punch_start_byte = min(end_byte, folio_pos(folio) + folio_size(folio));

Current code was also correct only. But I guess this just avoids
min_t/loff_t thing. No other reason right?

-ritesh



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