PM / hibernate: Simplify mark_unsafe_pages()

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Rework mark_unsafe_pages() to use a simpler method of clearing
all bits in free_pages_map and to set the bits for the "unsafe"
pages (ie. pages that were used by the image kernel before
hibernation) with the help of duplicate_memory_bitmap().

For this purpose, move the pfn_valid() check from mark_unsafe_pages()
to unpack_orig_pfns() where the "unsafe" pages are discovered.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Rafael J. Wysocki 2016-06-29 03:02:16 +02:00

parent 9c744481c0

commit 6dbecfd345

1 changed files with 25 additions and 39 deletions

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kernel/power/snapshot.c

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