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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>		18 years ago
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cpu	sh: sh-rtc support for SH7709.	18 years ago
timers	sh: Preliminary support for the SH-X3 CPU.	18 years ago
vsyscall	sh: Fix vsyscall build failure.	18 years ago
Makefile	sh: Fixup machvec support.	18 years ago
asm-offsets.c	…
cf-enabler.c	sh: Rip out special unknown machvec.	18 years ago
cpufreq.c	…
crash_dump.c	sh: kdump support.	18 years ago
debugtraps.S	sh: Use a jump call table for debug trap handlers.	18 years ago
early_printk.c	Fixes and cleanups for earlyprintk aka boot console	18 years ago
entry-common.S	sh: Clear UBC when not in use.	18 years ago
head.S	sh: Fix .empty_zero_page alignment for PAGE_SIZE > 4096.	18 years ago
init_task.c	[PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c	19 years ago
io.c	sh: Optimized readsl()/writesl() support.	19 years ago
io_generic.c	sh: Revert lazy dcache writeback changes.	18 years ago
irq.c	sh: Update the alignment when 4K stacks are used.	18 years ago
kgdb_jmp.S	…
kgdb_stub.c	spelling fixes: arch/sh/	18 years ago
machine_kexec.c	sh: kdump support.	18 years ago
machvec.c	sh: Rip out special unknown machvec.	18 years ago
module.c	…
pm.c	…
process.c	sh: Tidy up dependencies for SH-2 build.	18 years ago
ptrace.c	PTRACE_POKEDATA consolidation	18 years ago
relocate_kernel.S	sh: Fixup various PAGE_SIZE == 4096 assumptions.	18 years ago
semaphore.c	…
setup.c	sh: Preliminary support for the SH-X3 CPU.	18 years ago
sh_bios.c	…
sh_ksyms.c	sh: Export div symbols for GCC 4.2 and ST GCC.	18 years ago
signal.c	Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6	18 years ago
smp.c	sh: trivial build cleanups.	18 years ago
stacktrace.c	sh: Fix stacktrace simplification fallout.	18 years ago
sys_sh.c	header cleaning: don't include smp_lock.h when not used	18 years ago
syscalls.S	sh: Wire up mempolicy syscalls.	18 years ago
time.c	sh: clockevent/clocksource/hrtimers/nohz TMU support.	18 years ago
topology.c	sh: Fix up cpu to node mapping in sysfs.	18 years ago
traps.c	Report that kernel is tainted if there was an OOPS	18 years ago
vmlinux.lds.S	define new percpu interface for shared data	18 years ago