Andrew Morton 7a8ef1cb77 [PATCH] x86: don't initialise cpu_possible_map to all ones ...

Initialising cpu_possible_map to all-ones with CONFIG_HOTPLUG_CPU means that

a) All for_each_cpu() loops will iterate across all NR_CPUS CPUs, rather
   than over possible ones.  That can be quite expensive.

b) Soon we'll be allocating per-cpu areas only for possible CPUs.  So with
   CPU_MASK_ALL, we'll be wasting memory.

I also switched voyager over to not use CPU_MASK_ALL in the non-CPU-hotplug
case.  Should be OK..

I note that parisc is also using CPU_MASK_ALL.  Suggest that it stop doing
that.

Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Jackson <pj@sgi.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Zwane Mwaikambo <zwane@linuxpower.ca>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-02-10 08:13:12 -08:00

..

acpi

[PATCH] x86_64: Dont record local apic ids when they are disabled in MADT

2006-02-04 16:43:15 -08:00

cpu

[PATCH] i386 cpu hotplug: don't access freed memory

2006-02-05 11:06:53 -08:00

timers

[PATCH] disable lost tick compensation before TSCs are synced

2006-02-01 08:53:14 -08:00

apic.c

[PATCH] Fix bad apic fix on i386

2006-02-07 10:08:38 -08:00

apm.c

[PATCH] capable/capability.h (arch/)

2006-01-11 18:42:14 -08:00

asm-offsets.c

…

bootflag.c

…

cpuid.c

[PATCH] arch/i386/kernel/cpuid.c: unused variable

2006-01-06 08:33:38 -08:00

crash_dump.c

[PATCH] kdump: read previous kernel's memory

2006-01-10 08:01:28 -08:00

crash.c

[PATCH] kdump: save registers early (inline functions)

2006-01-10 08:01:27 -08:00

dmi_scan.c

[PATCH] x86_64: Generalize DMI and enable for x86-64

2006-01-11 19:04:51 -08:00

doublefault.c

…

early_printk.c

…

efi_stub.S

…

efi.c

…

entry.S

[PATCH] Make vm86 support optional

2006-01-08 20:14:11 -08:00

head.S

[PATCH] x86: Fixed pnp bios limits

2006-01-06 08:33:35 -08:00

i386_ksyms.c

[PATCH] x86: GDT alignment fix

2006-01-06 08:33:33 -08:00

i387.c

…

i8237.c

…

i8259.c

…

init_task.c

[PATCH] Change maxaligned_in_smp alignemnt macros to internodealigned_in_smp macros

2006-01-08 20:13:38 -08:00

io_apic.c

[PATCH] x86_64: Memorize location of i8259 for reboots.

2006-01-11 19:05:00 -08:00

ioport.c

[PATCH] capable/capability.h (arch/)

2006-01-11 18:42:14 -08:00

irq.c

[PATCH] Change maxaligned_in_smp alignemnt macros to internodealigned_in_smp macros

2006-01-08 20:13:38 -08:00

kprobes.c

[PATCH] kprobes: fix race in recovery of reentrant probe

2006-01-11 18:42:12 -08:00

ldt.c

…

machine_kexec.c

…

Makefile

[PATCH] kdump: read previous kernel's memory

2006-01-10 08:01:28 -08:00

mca.c

…

microcode.c

[PATCH] i386: Replace broken serialize_cpu in microcode driver with correct sync_core

2006-01-11 19:04:58 -08:00

module.c

…

mpparse.c

Pull pnpacpi into acpica branch

2006-01-07 03:50:18 -05:00

msr.c

[PATCH] arch/i386/kernel/msr.c: removed unused variable

2006-01-06 08:33:38 -08:00

nmi.c

[PATCH] percpu data: only iterate over possible CPUs

2006-02-05 11:06:51 -08:00

numaq.c

…

pci-dma.c

…

process.c

[PATCH] i386: print kernel version in register dumps

2006-02-05 11:06:53 -08:00

ptrace.c

[PATCH] i386: PTRACE_POKEUSR: allow changing RF bit in EFLAGS register.

2006-01-05 20:50:51 -08:00

quirks.c

[PATCH] EDAC: core EDAC support code

2006-01-18 19:20:31 -08:00

reboot_fixups.c

…

reboot.c

[PATCH] i386/x86-64: Don't IPI to offline cpus on shutdown

2006-01-11 19:04:50 -08:00

relocate_kernel.S

…

scx200.c

[PATCH] arch: Replace pci_module_init() with pci_register_driver()

2006-01-09 12:13:21 -08:00

semaphore.c

…

setup.c

[PATCH] i386/x86-64: make setup_early_printk() usage consistent

2006-01-11 19:05:04 -08:00

sigframe.h

…

signal.c

[PATCH] Handle TIF_RESTORE_SIGMASK for i386

2006-01-18 19:20:29 -08:00

smp.c

…

smpboot.c

[PATCH] x86: don't initialise cpu_possible_map to all ones

2006-02-10 08:13:12 -08:00

srat.c

…

summit.c

…

sys_i386.c

…

syscall_table.S

[PATCH] unshare system call -v5: system call registration for i386

2006-02-07 16:12:34 -08:00

sysenter.c

…

time_hpet.c

[PATCH] move rtc_interrupt() prototype to rtc.h

2006-01-08 20:13:47 -08:00

time.c

[PATCH] i386: Handle missing local APIC timer interrupts on C3 state

2006-01-11 19:04:54 -08:00

trampoline.S

…

traps.c

[PATCH] i386: print kernel version in register dumps

2006-02-05 11:06:53 -08:00

vm86.c

correct email address of Manfred Spraul

2006-01-15 02:43:54 +01:00

vmlinux.lds.S

…

vsyscall-int80.S

…

vsyscall-note.S

…

vsyscall-sigreturn.S

…

vsyscall-sysenter.S

…

vsyscall.lds.S

…

vsyscall.S

…