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authorStephen Rothwell <sfr@canb.auug.org.au>2011-07-25 21:59:46 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-07-25 22:53:52 +0400
commit5f00bcb38ef9a980a33c6dbdc0044964b05f22dd (patch)
tree3175fb9375aecb50bde1be0bf4fa8aa8155131d6 /arch/arm/kernel/smp.c
parent34006cee28f7344f9557a4be3816c7891b1bbab1 (diff)
parentb6844e8f64920cdee620157252169ba63afb0c89 (diff)
downloadlinux-5f00bcb38ef9a980a33c6dbdc0044964b05f22dd.tar.xz
Merge branch 'master' into devel and apply fixup from Stephen Rothwell:
vfs/nfs: fixup for nfs_open_context change Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'arch/arm/kernel/smp.c')
-rw-r--r--arch/arm/kernel/smp.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index e7f92a4321f3..167e3cbe1f2f 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -365,8 +365,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
*/
if (max_cpus > ncores)
max_cpus = ncores;
-
- if (max_cpus > 1) {
+ if (ncores > 1 && max_cpus) {
/*
* Enable the local timer or broadcast device for the
* boot CPU, but only if we have more than one CPU.
@@ -374,6 +373,14 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
percpu_timer_setup();
/*
+ * Initialise the present map, which describes the set of CPUs
+ * actually populated at the present time. A platform should
+ * re-initialize the map in platform_smp_prepare_cpus() if
+ * present != possible (e.g. physical hotplug).
+ */
+ init_cpu_present(&cpu_possible_map);
+
+ /*
* Initialise the SCU if there are more than one CPU
* and let them know where to start.
*/