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linux/arch/x86_64/kernel
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Andi Kleen 485761bd6a [PATCH] x86_64: Tell VM about holes in nodes 
Some nodes can have large holes on x86-64.

This fixes problems with the VM allowing too many dirty pages because it
overestimates the number of available RAM in a node.  In extreme cases you
can end up with all RAM filled with dirty pages which can lead to deadlocks
and other nasty behaviour.

This patch just tells the VM about the known holes from e820.  Reserved
(like the kernel text or mem_map) is still not taken into account, but that
should be only a few percent error now.

Small detail is that the flat setup uses the NUMA free_area_init_node() now
too because it offers more flexibility.

(akpm: lotsa thanks to Martin for working this problem out)

Cc: Martin Bligh <mbligh@mbligh.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-26 19:37:12 -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] x86_64: Tell VM about holes in nodes 2005-08-26 19:37:12 -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: Switch to the interrupt stack when running a softirq in local_bh_enable() 2005-07-28 21:46:02 -07:00
genapic.c [PATCH] x86_64: Support more than 8 cores on AMD systems 2005-07-28 21:46:01 -07:00
genapic_cluster.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
genapic_flat.c [PATCH] x86_64: Support more than 8 cores on AMD systems 2005-07-28 21:46:01 -07:00
head.S [PATCH] x86_64: Small assembly improvements 2005-07-28 21:46:02 -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: Switch to the interrupt stack when running a softirq in local_bh_enable() 2005-07-28 21:46:02 -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] x86_64 machine_kexec: Use standard pagetable helpers 2005-07-29 13:12:49 -07:00
Makefile [PATCH] kexec: x86_64 kexec implementation 2005-06-25 16:24:50 -07:00
mce.c [PATCH] x86_64: ignore machine checks from boot time 2005-08-07 10:00:37 -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 patch update 2005-07-30 13:37:50 -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] x86_64 sync machine_power_off with i386 2005-07-26 14:35:45 -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] x86_64 bootmem: sparse_mem/kexec merge bug. 2005-08-06 13:06:30 -07:00
setup64.c [PATCH] x86_64: Some cleanup in setup64.c 2005-07-28 21:45:58 -07:00
signal.c [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
smp.c [PATCH] Fix sync_tsc hang 2005-07-29 15:01:13 -07:00
smpboot.c [PATCH] x86_64: Fix race in TSC synchronization 2005-08-19 19:18:47 -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 changes kills nmi watchdog 2005-07-28 21:45:57 -07:00
vmlinux.lds.S [PATCH] x86_64: section alignment fix 2005-07-12 16:00:59 -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