[PATCH 0/2] arm64: mm: fix kdump broken with ZONE_DMA reintroduced

[Chen Zhou]

If the memory reserved for crash dump kernel falled in ZONE_DMA32,
the devices in crash dump kernel need to use ZONE_DMA will alloc fail.
           
Fix this by reserving low memory in ZONE_DMA if CONFIG_ZONE_DMA is
enabled, otherwise, reserving in ZONE_DMA32.

Patch 1 updates the comments about the ZONE_DMA.
Patch 2 fix kdump broken.

Chen Zhou (2):
  arm64: mm: update the comments about ZONE_DMA
  arm64: mm: fix kdump broken with ZONE_DMA reintroduced

 arch/arm64/mm/init.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

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2.20.1