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authorFenghua Yu <fenghua.yu@intel.com>2007-07-19 01:48:13 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 10:04:45 -0700
commitf34e3b61f2be9628bd41244f3ecc42009c5eced5 (patch)
tree192a64c12f84b3d69b9bf12ba56c2c7d86bc269b /arch/ia64
parent5fb7dc37dc16fbc8b80d81318a582201ef7e280d (diff)
downloadlinux-2.6.34-ux500-f34e3b61f2be9628bd41244f3ecc42009c5eced5.tar.gz
use the new percpu interface for shared data
Currently most of the per cpu data, which is accessed by different cpus, has a ____cacheline_aligned_in_smp attribute. Move all this data to the new per cpu shared data section: .data.percpu.shared_aligned. This will seperate the percpu data which is referenced frequently by other cpus from the local only percpu data. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kernel/smp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index b3a47f986e1..9f72838db26 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -82,7 +82,7 @@ static volatile struct call_data_struct *call_data;
#define IPI_KDUMP_CPU_STOP 3
/* This needs to be cacheline aligned because it is written to by *other* CPUs. */
-static DEFINE_PER_CPU(u64, ipi_operation) ____cacheline_aligned;
+static DEFINE_PER_CPU_SHARED_ALIGNED(u64, ipi_operation);
extern void cpu_halt (void);