[PATCH] [254/275] PM / Hibernate: Improve comments in hibernate_preallocate_memory()

[Andi Kleen]

2.6.35-longterm review patch.  If anyone has any objections, please let me know.

------------------
From: Rafael J. Wysocki <rjw@xxxxxxx>

[ upstream commit 266f1a25eff5ff98c498d7754a419aacfd88f71c ]

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@xxxxxxx>
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

---
 kernel/power/snapshot.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Index: linux-2.6.35.y/kernel/power/snapshot.c
===================================================================
--- linux-2.6.35.y.orig/kernel/power/snapshot.c	2011-03-29 23:03:00.951275828 -0700
+++ linux-2.6.35.y/kernel/power/snapshot.c	2011-03-29 23:53:44.143408156 -0700
@@ -1318,12 +1318,14 @@
 
 	/* 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);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/