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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2010-09-20 19:44:38 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2010-10-17 01:57:42 +0200 |
| commit | 266f1a25eff5ff98c498d7754a419aacfd88f71c (patch) | |
| tree | 1666c23a92f3845be4644dc26728574119ca61f9 | |
| parent | bcb5ba8b4e8a5ae14b27351bdf499dd4c3bcc944 (diff) | |
| download | lwn-266f1a25eff5ff98c498d7754a419aacfd88f71c.tar.gz lwn-266f1a25eff5ff98c498d7754a419aacfd88f71c.zip | |
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>
| -rw-r--r-- | kernel/power/snapshot.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index d3f795f01bbc..d9191b40cf6e 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -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); |