The patch titled
ia64: fix unlock ordering in smp_callin
has been removed from the -mm tree. Its filename was
ia64-fix-unlock-ordering-in-smp_callin.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ia64: fix unlock ordering in smp_callin
From: "Alan D. Brunelle" <Alan.Brunelle@xxxxxx>
One should normally unlock in the reverse order of the lock calls, and in this
case there certainly is no reason not to.
To better see the results (with locks included), here's the complete
section of corrected code:
lock_ipi_calllock();
spin_lock(&vector_lock);
/* Setup the per cpu irq handling data structures */
__setup_vector_irq(cpuid);
cpu_set(cpuid, cpu_online_map);
per_cpu(cpu_state, cpuid) = CPU_ONLINE;
spin_unlock(&vector_lock);
unlock_ipi_calllock();
Signed-off-by: Alan D. Brunelle <alan.brunelle@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/ia64/kernel/smpboot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/ia64/kernel/smpboot.c~ia64-fix-unlock-ordering-in-smp_callin arch/ia64/kernel/smpboot.c
--- a/arch/ia64/kernel/smpboot.c~ia64-fix-unlock-ordering-in-smp_callin
+++ a/arch/ia64/kernel/smpboot.c
@@ -400,9 +400,9 @@ smp_callin (void)
/* Setup the per cpu irq handling data structures */
__setup_vector_irq(cpuid);
cpu_set(cpuid, cpu_online_map);
- unlock_ipi_calllock();
per_cpu(cpu_state, cpuid) = CPU_ONLINE;
spin_unlock(&vector_lock);
+ unlock_ipi_calllock();
smp_setup_percpu_timer();
_
Patches currently in -mm which might be from Alan.Brunelle@xxxxxx are
git-ia64.patch
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