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Christoph Lameter 6c036527a6 [PATCH] mostly_read data section 
Add a new section called ".data.read_mostly" for data items that are read
frequently and rarely written to like cpumaps etc.

If these maps are placed in the .data section then these frequenly read
items may end up in cachelines with data is is frequently updated.  In that
case all processors in an SMP system must needlessly reload the cachelines
again and again containing elements of those frequently used variables.

The ability to share these cachelines will allow each cpu in an SMP system
to keep local copies of those shared cachelines thereby optimizing
performance.

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Shobhit Dayal <shobhit@calsoftinc.com>
Signed-off-by: Christoph Lameter <christoph@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:46 -07:00
..
acpi [PATCH] s-t-RAM: load gdt the right way 2005-06-25 16:24:32 -07:00
cpufreq Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
aperture.c [PATCH] remove direct ref to contig_page_data for x86-64 2005-06-23 09:45:06 -07:00
apic.c [PATCH] kexec: x86_64: restore apic virtual wire mode on shutdown 2005-06-25 16:24:47 -07:00
asm-offsets.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crash.c [PATCH] kdump: Use real pt_regs from exception 2005-06-25 16:24:54 -07:00
e820.c [PATCH] crashdump: x86_64: crashkernel option 2005-06-25 16:24:50 -07:00
early_printk.c [PATCH] allow early printk to use more than 25 lines 2005-06-23 09:45:10 -07:00
entry.S [PATCH] x86_64: Readd missing tests in entry.S 2005-05-17 07:59:13 -07:00
genapic.c [PATCH] x86_64 genapic update 2005-04-16 15:24:53 -07:00
genapic_cluster.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
genapic_flat.c [PATCH] x86_64: Provide ability to choose using shortcuts for IPI in flat mode. 2005-06-25 16:24:31 -07:00
head.S [PATCH] kexec: x86_64: add CONFIG_PHYSICAL_START 2005-06-25 16:24:48 -07:00
head64.c [PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options 2005-06-23 09:45:06 -07:00
i387.c [PATCH] x86_64: Change init sections for CPU hotplug support 2005-06-25 16:24:30 -07:00
i8259.c [PATCH] kexec: x86_64: add i8259 shutdown method 2005-06-25 16:24:46 -07:00
init_task.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
io_apic.c [PATCH] x86: i8253/i8259A lock cleanup 2005-06-30 08:45:10 -07:00
ioport.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c [PATCH] x86_64: CPU hotplug support 2005-06-25 16:24:30 -07:00
kprobes.c [PATCH] kprobes: fix namespace problem and sparc64 build 2005-07-05 19:19:00 -07:00
ldt.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machine_kexec.c [PATCH] kexec code cleanup 2005-06-25 16:24:55 -07:00
Makefile [PATCH] kexec: x86_64 kexec implementation 2005-06-25 16:24:50 -07:00
mce.c [PATCH] RCU: clean up a few remaining synchronize_kernel() calls 2005-06-25 16:24:38 -07:00
mce_intel.c [PATCH] x86_64: Change init sections for CPU hotplug support 2005-06-25 16:24:30 -07:00
module.c [PATCH] uml: kludgy compilation fixes for x86-64 subarch modules support 2005-05-05 16:36:33 -07:00
mpparse.c [PATCH] x86_64: avoid wasting IRQs 2005-06-23 09:45:13 -07:00
msr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nmi.c [PATCH] x86_64: Change init sections for CPU hotplug support 2005-06-25 16:24:30 -07:00
pci-dma.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci-gart.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci-nommu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pmtimer.c [PATCH] x86_64: Add pmtimer support 2005-05-17 07:59:15 -07:00
process.c [PATCH] seccomp: tsc disable 2005-06-27 15:11:44 -07:00
ptrace.c [PATCH] x86_64: TASK_SIZE fixes for compatibility mode processes 2005-06-21 18:46:12 -07:00
reboot.c [PATCH] kexec: x86_64: factor out apic shutdown code 2005-06-25 16:24:50 -07:00
relocate_kernel.S [PATCH] kexec: x86_64 kexec implementation 2005-06-25 16:24:50 -07:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c [PATCH] MTRR suspend/resume cleanup 2005-07-07 18:23:42 -07:00
setup64.c [PATCH] x86_64: Change init sections for CPU hotplug support 2005-06-25 16:24:30 -07:00
signal.c [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
smp.c [PATCH] x86_64: Dont use broadcast shortcut to make it cpu hotplug safe. 2005-06-25 16:24:31 -07:00
smpboot.c [PATCH] x86_64: Dont use broadcast shortcut to make it cpu hotplug safe. 2005-06-25 16:24:31 -07:00
suspend.c [PATCH] MTRR suspend/resume cleanup 2005-07-07 18:23:42 -07:00
suspend_asm.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sys_x86_64.c [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
syscall.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
time.c [PATCH] x86_64: fix hpet for systems that don't support legacy replacement 2005-06-23 09:45:12 -07:00
trampoline.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
traps.c [PATCH] x86_64: CPU hotplug support 2005-06-25 16:24:30 -07:00
vmlinux.lds.S [PATCH] mostly_read data section 2005-07-07 18:23:46 -07:00
vsyscall.c [PATCH] x86_64: Make vsyscall.c compile without CONFIG_SYSCTL 2005-05-17 07:59:16 -07:00
x8664_ksyms.c [PATCH] x86_64: CONFIG_BUG=n fixes 2005-05-25 15:31:28 -07:00