systemd/0419-core-swap-follow-the-configured-unit-by-default.patch

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2014-10-04 02:43:52 +00:00
From cdc8982030271785d650af410230397bbb5a4be9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Sun, 28 Sep 2014 10:37:52 -0400
Subject: [PATCH] core/swap: follow the configured unit by default
Phenomenon: parameters configured in /etc/fstab for swap units are
ignored. E.g. pri= settings have no effect when systemd starts swap
units. What is even more confusing, .swap units for the name used in
/etc/fstab initially show proper values for Priority=, but after
starting them, they are re-initalized from /proc/swaps and show the -1
value from /proc/swaps.
Change swap units to follow the original configured unit. This way
proper settings are used when starting the swap.
---
src/core/swap.c | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
diff --git a/src/core/swap.c b/src/core/swap.c
index 36c9e029e9..ef90d0efde 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -1208,11 +1208,25 @@ static Unit *swap_following(Unit *u) {
assert(s);
- if (streq_ptr(s->what, s->devnode))
+ /* If the user configured the swap through /etc/fstab or
+ * a device unit, follow that. */
+
+ if (s->from_fragment)
return NULL;
- /* Make everybody follow the unit that's named after the swap
- * device in the kernel */
+ LIST_FOREACH_AFTER(same_devnode, other, s)
+ if (other->from_fragment)
+ return UNIT(other);
+
+ LIST_FOREACH_BEFORE(same_devnode, other, s)
+ if (other->from_fragment)
+ return UNIT(other);
+
+ /* Otherwise make everybody follow the unit that's named after
+ * the swap device in the kernel */
+
+ if (streq_ptr(s->what, s->devnode))
+ return NULL;
LIST_FOREACH_AFTER(same_devnode, other, s)
if (streq_ptr(other->what, other->devnode))
@@ -1225,6 +1239,7 @@ static Unit *swap_following(Unit *u) {
first = other;
}
+ /* Fall back to the first on the list */
return UNIT(first);
}