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
..
a.out.h
appldata.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
atomic.h	[S390] Remove volatile from atomic_t	2007-07-10 11:24:49 +02:00
auxvec.h
bitops.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
bug.h	[S390] Use generic bug.	2007-04-27 16:01:42 +02:00
bugs.h	[S390] check_bugs() should be inline.	2007-03-05 23:35:50 +01:00
byteorder.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
cache.h
cacheflush.h	[PATCH] Optimize D-cache alias handling on fork	2006-12-13 09:27:08 -08:00
ccwdev.h	[S390] cio: Get rid of _ccw_device_get_device_number().	2007-05-10 15:45:51 +02:00
ccwgroup.h	[S390] cio: ccwgroup register vs. unregister.	2007-04-27 16:01:41 +02:00
checksum.h	[S390] Fix TCP/UDP pseudo header checksum computation.	2007-03-26 20:43:46 +02:00
chpid.h	[S390] cio: Channel-path configure function.	2007-04-27 16:01:39 +02:00
cio.h	[S390] cio: Channel-path configure function.	2007-04-27 16:01:39 +02:00
cmb.h	[S390] cio: Remove prototype for non-existing function cmf_reset().	2007-07-10 11:24:52 +02:00
compat.h	Introduce compat_u64 and compat_s64 types	2007-07-16 09:05:48 -07:00
cpcmd.h	[S390] cpcmd <-> __cpcmd calling issues	2006-12-04 15:40:30 +01:00
cputime.h
current.h
dasd.h	[S390] New DASD feature for ERP related logging	2006-12-08 15:54:15 +01:00
debug.h	[PATCH] Fix 'make headers_check' on s390	2006-09-16 12:54:31 -07:00
delay.h
device.h	Driver core: add dev_archdata to struct device	2006-12-01 14:52:01 -08:00
div64.h	[S390] __div64_32 for 31 bit.	2006-09-28 16:55:39 +02:00
dma.h	[S390] empty function defines.	2006-09-20 15:58:51 +02:00
ebcdic.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
elf.h	[S390] add hardware capability support (ELF_HWCAP).	2007-05-04 18:48:35 +02:00
emergency-restart.h
errno.h
etr.h	[S390] ETR support.	2007-02-05 21:18:19 +01:00
extmem.h
fb.h	fbdev: detect primary display device	2007-07-17 10:23:11 -07:00
fcntl.h
futex.h	[S390] don't call handle_mm_fault() if in an atomic context.	2007-01-09 10:18:50 +01:00
hardirq.h	[S390] ETR support.	2007-02-05 21:18:19 +01:00
idals.h
io.h	[S390] remove __io_virt and mmiowb.	2007-02-12 15:49:57 +01:00
ioctl.h
ioctls.h
ipc.h
ipcbuf.h
ipl.h	[S390] Avoid sparse warnings.	2007-05-10 15:45:52 +02:00
irq.h	[PATCH] Make touch_nmi_watchdog imply touch_softlockup_watchdog on all archs	2006-09-29 09:18:05 -07:00
irq_regs.h	[S390] irq change build fixes.	2006-10-06 16:38:35 +02:00
irqflags.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
Kbuild	[S390] Unexport <asm/z90crypt.h>, export <asm/zcrypt.h> in its place.	2006-09-24 22:07:25 +01:00
kdebug.h	move die notifier handling to common code	2007-05-08 11:15:04 -07:00
kexec.h	kdump/kexec: calculate note size at compile time	2007-05-08 11:15:07 -07:00
kmap_types.h
kprobes.h	jprobes: remove JPROBE_ENTRY()	2007-07-19 10:04:44 -07:00
linkage.h
local.h	[S390] local_t cleanup : use asm-generic/local.h.	2007-02-21 10:55:55 +01:00
lowcore.h	[S390] add hardware capability support (ELF_HWCAP).	2007-05-04 18:48:35 +02:00
mathemu.h
mman.h
mmu.h
mmu_context.h	[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction	2007-05-02 19:27:14 +02:00
module.h
monwriter.h	[S390] Linux API for writing z/VM APPLDATA Monitor records.	2006-09-20 15:59:34 +02:00
msgbuf.h
mutex.h
namei.h
page.h	Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated	2007-07-17 10:22:59 -07:00
param.h	[S390] Kconfig: use common Kconfig files for s390.	2007-05-10 15:46:08 +02:00
pci.h
percpu.h	define new percpu interface for shared data	2007-07-19 10:04:44 -07:00
pgalloc.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
pgtable.h	mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty	2007-07-17 10:22:59 -07:00
poll.h	Consolidate asm/poll.h	2007-05-11 08:29:34 -07:00
posix_types.h	[PATCH] FD_ZERO build fix	2007-01-11 18:18:22 -08:00
processor.h	[S390] s390: rename CPU_IDLE to S390_CPU_IDLE	2007-07-10 11:24:53 +02:00
ptrace.h	[S390] Move psw_set_key.	2007-06-19 13:10:20 +02:00
qdio.h	s390: free skbs in finite amount of time in qeth	2007-05-08 01:16:23 -04:00
qeth.h
reset.h	[S390] Convert memory detection into C code.	2007-02-05 21:18:37 +01:00
resource.h
rwsem.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
s390_ext.h	[S390] irq change build fixes.	2006-10-06 16:38:35 +02:00
s390_rdev.h
scatterlist.h
sclp.h	[S390] sclp: Test facility list before executing a service call.	2007-07-10 11:24:43 +02:00
sections.h	[S390] nss: Free unused memory in kernel image.	2007-02-21 10:55:37 +01:00
segment.h
semaphore.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
sembuf.h
setup.h	[S390] zfcpdump support.	2007-04-27 16:01:44 +02:00
sfp-machine.h	[S390] Bogomips calculation for 64 bit.	2007-07-10 11:24:47 +02:00
sfp-util.h	[S390] Bogomips calculation for 64 bit.	2007-07-10 11:24:47 +02:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h	[PATCH] irq-flags: S390: Use the new IRQF_ constants	2006-07-02 13:58:48 -07:00
sigp.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
smp.h	Remove hardcoding of hard_smp_processor_id on UP systems	2007-05-09 12:30:48 -07:00
socket.h	[NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support	2007-04-25 22:24:21 -07:00
sockios.h	[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution	2007-04-25 22:24:04 -07:00
spinlock.h	[S390] incorrect placement of include.	2006-10-04 20:02:12 +02:00
spinlock_types.h	[PATCH] Directed yield: direct yield of spinlocks for s390.	2006-10-01 00:39:22 -07:00
stat.h
statfs.h
string.h	[S390] Inline assembly cleanup.	2006-09-28 16:56:43 +02:00
suspend.h
system.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
tape390.h	[S390] Add crypto support for 3592 tape devices	2007-02-05 21:18:26 +01:00
termbits.h	lots-of-architectures: enable arbitary speed tty support	2007-07-10 17:51:13 -07:00
termios.h	[PATCH] consolidate line discipline number definitions	2007-02-11 10:51:26 -08:00
thread_info.h	[S390] preempt_count initialization.	2006-06-29 15:02:47 +02:00
timer.h	[S390] Get rid of a lot of sparse warnings.	2007-02-05 21:16:47 +01:00
timex.h	[S390] Support for s390 Pseudo Random Number Generator	2007-02-05 21:18:22 +01:00
tlb.h
tlbflush.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
todclk.h
topology.h
types.h	[PATCH] Centralise definitions of sector_t and blkcnt_t	2006-12-04 19:41:15 -08:00
uaccess.h	[S390] noexec protection	2007-02-05 21:18:17 +01:00
ucontext.h
unaligned.h
unistd.h	[S390] Wire up signald, timerfd and eventfd syscalls.	2007-05-21 11:25:28 +02:00
user.h
vtoc.h
xor.h
zcrypt.h	[S390] update interface notes in zcrypt.h	2006-12-04 15:40:00 +01:00