KVM: s390: Add gmap_helper_set_unused()

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Add gmap_helper_set_unused() to mark userspace ptes as unused.

Core mm code will use that information to discard unused pages instead
of attempting to swap them.

Reviewed-by: Nico Boehr <nrb@linux.ibm.com>
Tested-by: Nico Boehr <nrb@linux.ibm.com>
Acked-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>

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Claudio Imbrenda 2026-02-04 16:02:34 +01:00

parent 4dadf64d9b

commit c98175b791

2 changed files with 80 additions and 0 deletions

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arch/s390/include/asm/gmap_helpers.h

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79

arch/s390/mm/gmap_helpers.c

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