[PATCHv2 7/7] mm: kill arch_mremap

This reverts commit 4abad2ca4a4d ("mm: new arch_remap() hook") and commit 2ae416b142b6 ("mm: new mm hook framework"). It also keeps the same functionality of mremapping vDSO blob with introducing vm_special_mapping mremap op for powerpc. Cc: Laurent Dufour Cc:

[PATCHv2 7/7] mm: kill arch_mremap

This reverts commit 4abad2ca4a4d ("mm: new arch_remap() hook") and commit 2ae416b142b6 ("mm: new mm hook framework"). It also keeps the same functionality of mremapping vDSO blob with introducing vm_special_mapping mremap op for powerpc. Cc: Laurent Dufour Cc: Benjamin Herrenschmidt Cc: Paul