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| author | Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> | 2012-05-15 21:02:17 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-16 03:16:57 +0200 |
| commit | ec2e0f9811a2c667d06feecb413c57f74c6b84f4 (patch) | |
| tree | bb9a9ead6f9fd170935910b87f188e6028c8f259 /arch/parisc/kernel/smp.c | |
| parent | genirq: export handle_edge_irq() and irq_to_desc() (diff) | |
| download | linux-ec2e0f9811a2c667d06feecb413c57f74c6b84f4.tar.xz linux-ec2e0f9811a2c667d06feecb413c57f74c6b84f4.zip | |
parisc/CPU hotplug: Add missing call to notify_cpu_starting()
The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-and-Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-and-Tested-by: Tobias Ulmer <tobiasu@tmux.org>
Tested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/parisc/kernel/smp.c')
| -rw-r--r-- | arch/parisc/kernel/smp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 0bb1d63907f8..4dc7b7942b4c 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -31,6 +31,7 @@ #include <linux/delay.h> #include <linux/bitops.h> #include <linux/ftrace.h> +#include <linux/cpu.h> #include <linux/atomic.h> #include <asm/current.h> @@ -295,8 +296,13 @@ smp_cpu_init(int cpunum) printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum); machine_halt(); - } + } + + notify_cpu_starting(cpunum); + + ipi_call_lock(); set_cpu_online(cpunum, true); + ipi_call_unlock(); /* Initialise the idle task for this CPU */ atomic_inc(&init_mm.mm_count); |