On Wed, Feb 03, 2021 at 04:08:08PM +0530, Prathu Baronia wrote:
>Hey Ira,
>I looked at your below-mentioned patch and I agree that the
>above-mentioned functions also need modification similar to
>clear_user_highpage().
>Would it be okay with you if I send your patch again with
On Tue, Feb 02, 2021 at 01:12:24PM +0530, Prathu Baronia wrote:
> In !HIGHMEM cases, specially in 64-bit architectures, we don't need temp
> mapping of pages. Hence, k(map|unmap)_atomic() acts as nothing more than
> multiple barrier() calls, for example for a 2MB hugepage in
> clear_huge_page() the
In !HIGHMEM cases, specially in 64-bit architectures, we don't need temp
mapping of pages. Hence, k(map|unmap)_atomic() acts as nothing more than
multiple barrier() calls, for example for a 2MB hugepage in
clear_huge_page() these are called 512 times i.e. to map and unmap each
subpage that means in
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