PM / Hibernate: Improve comments in hibernate_preallocate_memory()
One comment in hibernate_preallocate_memory() is wrong, so fix it and add one more comment to clarify the meaning of the fixed one. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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@ -1318,12 +1318,14 @@ int hibernate_preallocate_memory(void)
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/* Compute the maximum number of saveable pages to leave in memory. */
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max_size = (count - (size + PAGES_FOR_IO)) / 2 - 2 * SPARE_PAGES;
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/* Compute the desired number of image pages specified by image_size. */
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size = DIV_ROUND_UP(image_size, PAGE_SIZE);
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if (size > max_size)
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size = max_size;
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/*
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* If the maximum is not less than the current number of saveable pages
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* in memory, allocate page frames for the image and we're done.
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* If the desired number of image pages is at least as large as the
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* current number of saveable pages in memory, allocate page frames for
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* the image and we're done.
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*/
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if (size >= saveable) {
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pages = preallocate_image_highmem(save_highmem);
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