Re: [PATCH] use might_sleep check if kmap_high is called from atomic context

[Matthew Wilcox]

On Tue, Aug 20, 2024 at 09:53:11AM +0800, zhangchun wrote:
> kmap_high is defined as EXPORT_SYMBOL, and cannot be called from atomic
> context. Add might_sleep check is necessary.

No.  Nobody should be calling kmap_high() directly.  There's already a
might_sleep() in kmap().  No need to add one in kmap_high().