Thread (3 messages) 3 messages, 2 authors, 2018-09-14

Re: [PATCH] Documentation: fix image_size default value

From: Rafael J. Wysocki <hidden>
Date: 2018-09-14 08:33:29

On Saturday, September 1, 2018 6:51:15 AM CEST Vladimir D. Seleznev wrote:
quoted hunk ↗ jump to hunk
This commit updates the default value of /sys/power/image_size in
the documentation.

Since ac5c24ec1e983313ef0015258fba6f630e54e7cn the `image_size' value is
set to about 2/5 of RAM, according to kernel/power/snapshot.c:

	image_size = ((totalram_pages * 2) / 5) * PAGE_SIZE;

but this change was not reflected everywhere in the documentation.

Signed-off-by: Vladimir D. Seleznev <redacted>
---
 Documentation/ABI/testing/sysfs-power | 2 +-
 Documentation/power/swsusp.txt        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 2f813d644c69..18b7dc929234 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -99,7 +99,7 @@ Description:
 		this file, the suspend image will be as small as possible.
 
 		Reading from this file will display the current image size
-		limit, which is set to 500 MB by default.
+		limit, which is set to around 2/5 of available RAM by default.
 
 What:		/sys/power/pm_trace
 Date:		August 2006
diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index cc87adf44c0a..236d1fb13640 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -56,7 +56,7 @@ If you want to limit the suspend image size to N bytes, do
 
 echo N > /sys/power/image_size
 
-before suspend (it is limited to 500 MB by default).
+before suspend (it is limited to around 2/5 of available RAM by default).
 
 . The resume process checks for the presence of the resume device,
 if found, it then checks the contents for the hibernation image signature.
Applied, thanks!

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