Re: [RFC PATCH v3 07/26] iomap: don't increase i_size if it's not a write operation

[Zhang Yi]

On 2024/3/1 7:19, Dave Chinner wrote:
> On Thu, Feb 29, 2024 at 04:59:34PM +0800, Zhang Yi wrote:
>> Hello, Dave!
>>
>> On 2024/2/29 6:25, Dave Chinner wrote:
>>> On Wed, Feb 28, 2024 at 04:53:32PM +0800, Zhang Yi wrote:
>>>> On 2024/2/13 13:46, Christoph Hellwig wrote:
..
> 
> The general solution is to have zeroing of speculative prealloc
> extents beyond EOF simply convert the range to unwritten and then
> invalidate any cached pages over that range. At this point, we are
> guaranteed to have zeroes across that range, all without needing to
> do any IO at all...
> 

Sure, thanks for the explanation, I will try to solve this problem
for xfs first.

Thanks,
Yi.