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Tejun Heo 19df0c2fef percpu: align percpu readmostly subsection to cacheline 
Currently percpu readmostly subsection may share cachelines with other
percpu subsections which may result in unnecessary cacheline bounce
and performance degradation.

This patch adds @cacheline parameter to PERCPU() and PERCPU_VADDR()
linker macros, makes each arch linker scripts specify its cacheline
size and use it to align percpu subsections.

This is based on Shaohua's x86 only patch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Shaohua Li <shaohua.li@intel.com>
2011-01-25 14:26:50 +01:00
..
cpufreq
[IA64] Use set_cpus_allowed_ptr
2010-05-18 14:45:53 -07:00
.gitignore
[IA64] Cleanup generated file not ignored by .gitignore
2008-08-04 11:06:16 -07:00
acpi-ext.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
acpi.c
[IA64] Fix format warning in arch/ia64/kernel/acpi.c
2011-01-12 11:02:43 -08:00
asm-offsets.c
ia64/pv_ops/xen: paravirtualize read/write ar.itc and ar.itm
2009-03-26 10:50:32 -07:00
audit.c
[IA64] Remove COMPAT_IA32 support
2010-02-08 10:42:17 -08:00
brl_emu.c
…
crash_dump.c
kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE
2008-10-20 08:52:39 -07:00
crash.c
sysctl: Drop & in front of every proc_handler.
2009-11-18 08:37:40 -08:00
cyclone.c
[IA64] Fix missing iounmap in error path in cyclone.c
2010-09-23 14:32:09 -07:00
dma-mapping.c
[IA64] Fix warning in dma-mapping.c
2009-09-02 09:12:21 -07:00
efi_stub.S
[IA64] make efi_stub.S fit in 80 cols
2006-06-21 14:35:28 -07:00
efi.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
elfcore.c
elf coredump: add extended numbering support
2010-03-06 11:26:46 -08:00
entry.h
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
entry.S
[IA64] Add latest crop of syscalls
2010-08-13 20:55:51 -07:00
err_inject.c
sysdev: Pass the attribute to the low level sysdev show/store function
2008-07-21 21:55:02 -07:00
esi_stub.S
…
esi.c
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
fsys.S
[IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask
2010-09-15 15:35:48 -07:00
fsyscall_gtod_data.h
[IA64] generalize attribute of fsyscall_gtod_data
2008-02-04 15:36:36 -08:00
ftrace.c
ftrace, ia64: IA64 dynamic ftrace support
2009-01-14 12:11:31 +01:00
gate-data.S
Rename .data.gate to .data..gate.
2010-03-03 11:25:59 +01:00
gate.lds.S
Rename .data..patch.XXX to .data..patch.XXX.
2010-03-03 11:25:59 +01:00
gate.S
Rename .data..patch.XXX to .data..patch.XXX.
2010-03-03 11:25:59 +01:00
head.S
percpu: make percpu symbols in ia64 unique
2009-10-29 22:34:14 +09:00
ia64_ksyms.c
percpu: remove per_cpu__ prefix.
2009-10-29 22:34:15 +09:00
init_task.c
Rename .data.init_task to .data..init_task.
2010-03-03 11:25:58 +01:00
iosapic.c
Merge branches 'release', 'drop_do_IRQ', 'fix_early_irq', 'misc-2.6.37', 'next-fixes', 'optimize-unwind', 'remove-compat-h' and 'stack_trace' into release
2010-10-12 15:06:59 -07:00
irq_ia64.c
[IA64] irq_ia64, use set_irq_chip
2010-12-28 14:19:20 -08:00
irq_lsapic.c
[IA64] remove obsolete hw_interrupt_type
2009-06-15 14:35:10 -07:00
irq.c
genirq: Convert irq_desc.lock to raw_spinlock
2009-12-14 23:55:33 +01:00
ivt.S
Merge branch 'for-35' of git://repo.or.cz/linux-kbuild
2010-06-01 08:55:52 -07:00
jprobes.S
[IA64] Move include/asm-ia64 to arch/ia64/include/asm
2008-08-01 10:21:21 -07:00
kprobes.c
kprobes: Disable booster when CONFIG_PREEMPT=y
2010-02-04 09:36:18 +01:00
machine_kexec.c
[IA64] kexec: Unregister MCA handler before kexec
2009-09-14 16:18:17 -07:00
machvec.c
x86, ia64: convert to use generic dma_map_ops struct
2009-01-06 14:06:57 +01:00
Makefile
[IA64] Add CONFIG_STACKTRACE_SUPPORT
2010-09-23 13:52:07 -07:00
Makefile.gate
Rename .data.gate to .data..gate.
2010-03-03 11:25:59 +01:00
mca_asm.S
percpu: make percpu symbols in ia64 unique
2009-10-29 22:34:14 +09:00
mca_drv_asm.S
[IA64] mca style cleanup
2008-02-04 15:42:06 -08:00
mca_drv.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
mca_drv.h
[IA64] mca style cleanup
2008-02-04 15:42:06 -08:00
mca.c
[IA64] Cannot use register_percpu_irq() from ia64_mca_init()
2010-10-07 16:23:34 -07:00
minstate.h
Rename .data..patch.XXX to .data..patch.XXX.
2010-03-03 11:25:59 +01:00
module.c
[IA64] Convert ia64 to use int-ll64.h
2009-06-17 09:33:49 -07:00
msi_ia64.c
dmar: Convert to new irq chip functions
2010-10-12 16:53:37 +02:00
nr-irqs.c
ia64/pv_ops/xen: define the nubmer of irqs which xen needs.
2008-10-17 10:06:59 -07:00
numa.c
[IA64] Minimize per_cpu reservations.
2008-04-08 13:51:35 -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
[IA64] Use static const char * const in palinfo.c
2010-09-23 14:22:05 -07:00
paravirt_inst.h
ia64/pv_ops: paravirtualized instruction checker.
2008-10-17 10:12:54 -07:00
paravirt_patch.c
ia64/pv_op/binarypatch: add helper functions to support binary patching for paravirt_ops.
2009-03-26 11:02:31 -07:00
paravirt_patchlist.c
[IA64] Fix build error in paravirt_patchlist.c
2009-06-17 09:04:40 -07:00
paravirt_patchlist.h
ia64/pv_ops: gate page paravirtualization.
2009-03-26 10:51:02 -07:00
paravirt.c
ia64: remove some warnings.
2009-03-27 11:11:04 -07:00
paravirtentry.S
Rename .data.read_mostly to .data..read_mostly.
2010-03-03 11:26:00 +01:00
patch.c
ia64: remove some warnings.
2009-03-27 11:11:04 -07:00
pci-dma.c
Bug Fix arch/ia64/kernel/pci-dma.c: fix recursive dma_supported() call in iommu_dma_supported()
2009-08-11 14:52:10 -07:00
pci-swiotlb.c
ia64: remove unnecessary sync_single_range_* in swiotlb_dma_ops
2010-05-27 09:12:52 -07:00
perfmon_default_smpl.c
[IA64] remove remaining __FUNCTION__ occurrences
2008-03-06 09:19:27 -08:00
perfmon_generic.h
…
perfmon_itanium.h
…
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] fix build error - arch/ia64/kernel/perfmon.c
2011-01-13 14:49:56 -08:00
process.c
ACPI, intel_idle: Cleanup idle= internal variables
2011-01-12 12:47:30 -05:00
ptrace.c
ptrace: change signature of arch_ptrace()
2010-10-27 18:03:10 -07:00
relocate_kernel.S
percpu: make percpu symbols in ia64 unique
2009-10-29 22:34:14 +09:00
sal.c
[IA64] Update check_sal_cache_flush to use platform_send_ipi()
2008-06-11 16:40:33 -07:00
salinfo.c
Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
2010-10-22 10:52:56 -07:00
setup.c
[IA64] Initialize interrupts later (from init_IRQ())
2010-10-05 15:41:25 -07:00
sigframe.h
[IA64] Add TIF_RESTORE_SIGMASK
2007-05-08 14:51:59 -07:00
signal.c
[IA64] Remove COMPAT_IA32 support
2010-02-08 10:42:17 -08:00
smp.c
[IA64] eliminate race condition in smp_flush_tlb_mm
2010-12-28 14:06:21 -08:00
smpboot.c
x86, ia64, smp: use workqueues unconditionally during do_boot_cpu()
2010-08-09 20:45:06 -07:00
stacktrace.c
[IA64] Add CONFIG_STACKTRACE_SUPPORT
2010-09-23 13:52:07 -07:00
sys_ia64.c
Get rid of open-coding in ia64_brk()
2009-12-11 06:44:58 -05:00
time.c
[IA64] Remove unlikely from cpu_is_offline
2010-12-28 14:20:42 -08:00
topology.c
[IA64] Use set_cpus_allowed_ptr
2010-05-18 14:45:53 -07:00
traps.c
[IA64] Remove COMPAT_IA32 support
2010-02-08 10:42:17 -08:00
unaligned.c
[IA64] use __ratelimit
2010-05-18 14:45:54 -07:00
uncached.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
unwind_decoder.c
…
unwind_i.h
…
unwind.c
[IA64] unwind - optimise linked-list searches for modules
2010-09-14 13:35:39 -07:00
vmlinux.lds.S
percpu: align percpu readmostly subsection to cacheline
2011-01-25 14:26:50 +01:00