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Commit 266f1a25 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
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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: default avatarRafael J. Wysocki <rjw@sisk.pl>
parent bcb5ba8b

kernel/power/snapshot.c

+4 −2
Original line number Diff line number Diff line
@@ -1318,12 +1318,14 @@ int hibernate_preallocate_memory(void) 


	/* Compute the maximum number of saveable pages to leave in memory. */

	max_size = (count - (size + PAGES_FOR_IO)) / 2 - 2 * SPARE_PAGES;

	/* Compute the desired number of image pages specified by image_size. */

	size = DIV_ROUND_UP(image_size, PAGE_SIZE);

	if (size > max_size)

		size = max_size;

	/*

	 * If the maximum is not less than the current number of saveable pages

	 * in memory, allocate page frames for the image and we're done.

	 * If the desired number of image pages is at least as large as the

	 * current number of saveable pages in memory, allocate page frames for

	 * the image and we're done.

	 */

	if (size >= saveable) {

		pages = preallocate_image_highmem(save_highmem);