Fenghua Yu 5fb7dc37dc define new percpu interface for shared data ... per cpu data section contains two types of data. One set which is exclusively accessed by the local cpu and the other set which is per cpu, but also shared by remote cpus. In the current kernel, these two sets are not clearely separated out. This can potentially cause the same data cacheline shared between the two sets of data, which will result in unnecessary bouncing of the cacheline between cpus. One way to fix the problem is to cacheline align the remotely accessed per cpu data, both at the beginning and at the end. Because of the padding at both ends, this will likely cause some memory wastage and also the interface to achieve this is not clean. This patch: Moves the remotely accessed per cpu data (which is currently marked as ____cacheline_aligned_in_smp) into a different section, where all the data elements are cacheline aligned. And as such, this differentiates the local only data and remotely accessed data cleanly. 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: <linux-arch@vger.kernel.org> 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>		2007-07-19 10:04:44 -07:00
..
cpufreq	ACPI: replace kmalloc+memset with kzalloc	2006-12-20 16:54:54 -05:00
acpi-ext.c	Pull acpi_os_free into release branch	2006-07-01 17:19:08 -04:00
acpi-processor.c	[IA64] Fix using uninitialized data in _PDC setup	2007-05-24 10:14:30 -07:00
acpi.c	[IA64] acpi_get_sysname() should be __init	2007-05-24 10:59:44 -07:00
asm-offsets.c	[IA64] fsys_getcpu for IA64	2007-03-07 16:27:09 -08:00
audit.c	[PATCH] audit signal recipients	2007-05-11 05:38:25 -04:00
brl_emu.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
crash_dump.c	[IA64] kexec: Minor enhancement to includes in crash.c	2007-02-05 11:31:04 -08:00
crash.c	[IA64] kdump on INIT needs multi-nodes sync-up (v.2)	2007-05-14 15:55:39 -07:00
cyclone.c	[IA64] don't report !sn2 or !summit hardware as an error	2006-03-07 15:26:49 -08:00
efi_stub.S	[IA64] make efi_stub.S fit in 80 cols	2006-06-21 14:35:28 -07:00
efi.c	handle kernelcore=: generic	2007-07-17 10:22:59 -07:00
entry.h	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
entry.S	[IA64] wire up {signal,timer,event}fd syscalls	2007-05-14 15:55:11 -07:00
err_inject.c	[IA64] typo s/kenrel/kernel/	2007-05-10 09:35:30 -07:00
esi_stub.S	[IA64] esi-support	2006-06-21 11:19:22 -07:00
esi.c	[IA64] esi-support	2006-06-21 11:19:22 -07:00
fsys.S	[IA64] ar.itc access must really be after xtime_lock.sequence has been read	2007-07-13 16:21:44 -07:00
gate-data.S	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
gate.lds.S	[PATCH] vDSO hash-style fix	2006-07-31 13:28:43 -07:00
gate.S	[IA64] Stop bit for brl instruction	2007-07-09 13:37:44 -07:00
head.S	[IA64] Save register stack contents on cpu start	2006-09-08 11:05:13 -07:00
ia64_ksyms.c	[IA64] Need export for csum_ipv6_magic	2006-12-07 13:18:57 -08:00
init_task.c	[PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c	2006-10-02 07:57:20 -07:00
iosapic.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6	2007-05-09 13:38:45 -07:00
irq_ia64.c	[IA64] sa_interrupt is deprecated	2007-05-09 14:20:59 -07:00
irq_lsapic.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
irq.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
ivt.S	[IA64] relax per-cpu TLB requirement to DTC	2007-02-06 15:04:48 -08:00
jprobes.S	[IA64] enable trap code on slot 1	2006-12-12 12:00:55 -08:00
kprobes.c	jprobes: make jprobes a little safer for users	2007-07-19 10:04:44 -07:00
machine_kexec.c	[IA64] Fix NULL-pointer dereference in ia64_machine_kexec()	2007-02-05 14:06:44 -08:00
machvec.c	[IA64] Fix - Section mismatch: reference to .init.data:mvec_name	2007-05-10 11:57:58 -07:00
Makefile	[IA64] Itanium MC Error Injection Tool: Makefile changes	2007-01-29 15:27:07 -08:00
mca_asm.S	[IA64] Support multiple CPUs going through OS_MCA	2007-07-11 11:50:11 -07:00
mca_drv_asm.S	[IA64] Don't set psr.ic and psr.i simultaneously	2007-07-09 10:30:28 -07:00
mca_drv.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
mca_drv.h	[IA64] printing support for MCA/INIT	2006-09-26 14:44:37 -07:00
mca.c	[IA64] Support multiple CPUs going through OS_MCA	2007-07-11 11:50:11 -07:00
minstate.h	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
module.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
msi_ia64.c	[IA64] Fix wrong assumption about irq and vector in msi_ia64.c	2007-04-06 15:37:06 -07:00
numa.c	[PATCH] cpumask: export node_to_cpu_mask consistently	2006-10-02 07:57:17 -07:00
pal.S	[IA64] reformat pal.S to fit in 80 columns, fix typos	2006-10-17 14:54:19 -07:00
palinfo.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
patch.c	[IA64] remove per-cpu ia64_phys_stacked_size_p8	2007-02-06 15:04:18 -08:00
perfmon_default_smpl.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
perfmon_generic.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
perfmon_itanium.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
perfmon_mckinley.h	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
perfmon_montecito.h	[IA64] sparse cleanups	2006-12-07 10:48:19 -08:00
perfmon.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
process.c	[IA64] silence GCC ia64 unused variable warnings	2007-07-11 11:40:42 -07:00
ptrace.c	[IA64] add missing syscall trace clear	2007-03-08 10:27:24 -08:00
relocate_kernel.S	[IA64] Removal of percpu TR cleanup in kexec code	2007-05-08 10:00:28 -07:00
sal.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
salinfo.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
semaphore.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
setup.c	serial: convert early_uart to earlycon for 8250	2007-07-16 09:05:35 -07:00
sigframe.h	[IA64] Add TIF_RESTORE_SIGMASK	2007-05-08 14:51:59 -07:00
signal.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6	2007-05-09 13:38:45 -07:00
smp.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
smpboot.c	[IA64] start_secondary() and smp_callin() should be __cpuinit	2007-05-23 16:46:40 -07:00
sys_ia64.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
time.c	[IA64] remove duplicate header include line	2007-06-26 13:33:45 -07:00
topology.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
traps.c	Report that kernel is tainted if there was an OOPS	2007-07-17 10:23:02 -07:00
unaligned.c	header cleaning: don't include smp_lock.h when not used	2007-05-08 11:15:07 -07:00
uncached.c	[PATCH] Define easier to handle GFP_THISNODE	2006-09-26 08:48:50 -07:00
unwind_decoder.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
unwind_i.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
unwind.c	[IA64] Correct unwind validation code	2007-06-26 13:33:10 -07:00
vmlinux.lds.S	define new percpu interface for shared data	2007-07-19 10:04:44 -07:00