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authorRafael J. Wysocki <rjw@sisk.pl>2006-09-25 23:32:48 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 08:48:59 -0700
commite3920fb42c8ddfe63befb54d95c0e13eabacea9b (patch)
tree08371a71e58e6e9d3ec62dfa6a22b3b5e6ff0fd5 /kernel/power/Makefile
parente8eff5ac294e12531c4195e0c15a222d3c9015e5 (diff)
[PATCH] Disable CPU hotplug during suspend
The current suspend code has to be run on one CPU, so we use the CPU hotplug to take the non-boot CPUs offline on SMP machines. However, we should also make sure that these CPUs will not be enabled by someone else after we have disabled them. The functions disable_nonboot_cpus() and enable_nonboot_cpus() are moved to kernel/cpu.c, because they now refer to some stuff in there that should better be static. Also it's better if disable_nonboot_cpus() returns an error instead of panicking if something goes wrong, and enable_nonboot_cpus() has no reason to panic(), because the CPUs may have been enabled by the userland before it tries to take them online. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/power/Makefile')
-rw-r--r--kernel/power/Makefile2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 8d0af3d37a4b..38725f526afc 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -7,6 +7,4 @@ obj-y := main.o process.o console.o
obj-$(CONFIG_PM_LEGACY) += pm.o
obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o disk.o snapshot.o swap.o user.o
-obj-$(CONFIG_SUSPEND_SMP) += smp.o
-
obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o