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SubjectRe: [PATCH v5 6/7] selftests: mm: Add a test for remapping within a range
On Sun, Aug 27, 2023 at 10:57:59AM +0100, Lorenzo Stoakes wrote:
[snip]

> > +/*
> > + * Verify that an mremap within a range does not cause corruption
> > + * of unrelated part of range.
> > + *
> > + * Consider the following range which is 2MB aligned and is
> > + * a part of a larger 10MB range which is not shown. Each
> > + * character is 256KB below making the source and destination

Just noticed, I think you misspeak here, as this test doens't seem to
offset by 256 KiB? That is the strategy for mremap_move_1mb_from_start()
rather than this test so perhaps comment needs to be moved around?

* 2MB each. The lower case letters are moved (s to d) and the
* upper case letters are not moved. The below test verifies
* that the upper case S letters are not corrupted by the
* adjacent mremap.
*
* |DDDDddddSSSSssss|
*/
static void mremap_move_within_range(char pattern_seed)

[snip]

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