s390/hypfs: simplify memory allocation

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Simplify memory allocation for diagnose 204 memory buffer:

- allocate with __vmalloc_node() to enure page alignment
- allocate real / physical memory area also within vmalloc area and handle
  vmalloc to real / physical address translation within diag204().

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Mete Durlu <meted@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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This commit is contained in:

Heiko Carstens 2023-07-04 15:47:11 +02:00

parent 5ac8c72462

commit 83f9567194

2 changed files with 30 additions and 34 deletions

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40

arch/s390/hypfs/hypfs_diag.c

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24

arch/s390/kernel/diag.c

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