PM: hibernate: Fix mistake in kerneldoc comment
The actual maximum image size formula in hibernate_preallocate_memory()
is as follows:
max_size = (count - (size + PAGES_FOR_IO)) / 2
- 2 * DIV_ROUND_UP(reserved_size, PAGE_SIZE);
but the one in the kerneldoc comment of the function is different and
incorrect.
Fixes: ddeb648708
("PM / Hibernate: Add sysfs knob to control size of memory for drivers")
Signed-off-by: xiongxin <xiongxin@kylinos.cn>
[ rjw: Subject and changelog rewrite ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -1723,8 +1723,8 @@ static unsigned long minimum_image_size(unsigned long saveable)
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* /sys/power/reserved_size, respectively). To make this happen, we compute the
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* total number of available page frames and allocate at least
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*
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* ([page frames total] + PAGES_FOR_IO + [metadata pages]) / 2
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* + 2 * DIV_ROUND_UP(reserved_size, PAGE_SIZE)
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* ([page frames total] - PAGES_FOR_IO - [metadata pages]) / 2
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* - 2 * DIV_ROUND_UP(reserved_size, PAGE_SIZE)
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*
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* of them, which corresponds to the maximum size of a hibernation image.
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*
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