Re: [PATCH 1/3] mpage: terminate read-ahead on read error

[Chi Zhiling]

On 2025/8/18 22:33, Matthew Wilcox wrote:
> On Mon, Aug 18, 2025 at 06:04:23PM +0800, Chi Zhiling wrote:
> > > Also, boy this is old code.  Basically akpm code from pre-git times.
> > > It was quite innovative back then, but everybody who understood it has
> > > since moved on,  got senile or probably died.  Oh well.
> >
> > Actually, I think this patch is safe, but I'm not sure if we should fix this
> > issue. After all, this code has existed for a long time, and it's quite rare
> > to unplug the device during a copy operation :)
>
> Converting exfat to use iomap would be a valuable piece of work ...

Yes, this is indeed worthwhile, and exFAT should also be restructured to 
support extents rather than fetching entries one by one.

I estimate this would bring significant performance improvements


Thanks,
Chi Zhiling