Re: [PATCH] Fix kunmap_atomic's use of kpte_clear_flush()

Jeremy Fitzhardinge wrote:

kunmap_atomic() will call kpte_clear_flush with vaddr/ptep arguments
which don't correspond if the vaddr is just a normal lowmem address
(ie, not in the KMAP area).  This patch makes sure that the pte is
only cleared if kmap area was actually used for the mapping.

Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Cc: Zachary Amsden <[email protected]>

Ack.
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    • From: Jeremy Fitzhardinge <[email protected]>

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