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From: Julien Muchembled <jm@jmuchemb.eu>
Date: Tue, 29 Apr 2014 11:40:50 +0200
Subject: Add support for TuxOnIce hibernation
systemd does not support non-mainline kernel features so upstream rejected this
patch.
It is however required for systemd integration by tuxonice-userui package.
Forwarded: http://lists.freedesktop.org/archives/systemd-devel/2014-April/018960.html
---
src/shared/sleep-config.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c
index 69b3e35..5664752 100644
--- a/src/shared/sleep-config.c
+++ b/src/shared/sleep-config.c
@@ -973,6 +973,12 @@ static bool enough_swap_for_hibernation(void) {
if (getenv_bool("SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK") > 0)
return true;
+ /* TuxOnIce is an alternate implementation for hibernation.
+ * It can be configured to compress the image to a file or an inactive
+ * swap partition, so there's nothing more we can do here. */
+ if (access("/sys/power/tuxonice", F_OK) == 0)
+ return true;
+
r = find_hibernate_location(&hibernate_location);
if (r < 0)
return false;
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