android_kernel_samsung_msm8976/arch
Bill Irwin 6c2af35820 [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split.
Only 1GB-aligned kernel/user splits are now handled for PAE. The
2GB/2GB split attempts to avoid aliasing vmallocspace with the 1:1
mapping for physical memory by using an actual split of 1.875/2.125
to accommodate 128MB of vmallocspace out of what would otherwise
be a full 2GB for userspace. That attempt disturbs the alignment
required by PAE for 2GB/2GB splits, and furthermore does not provide
a 2GB/2GB split as advertised.

This patch resolves the issues here in two manners. The first is
by providing a true 2GB/2GB split in addition to the 1.875/2.125
split. The second is by renaming the 1.875/2.125 split to
CONFIG_VMSPLIT_2G_OPT analogously to CONFIG_VMSPLIT_3G_OPT, which
performs a similar manuever to avoid aliasing vmallocspace with
the 1:1 mapping for physical memory around the 3GB boundary. With
the 1.875/2.125 split properly-named, its config option is then
tagged as depending on !HIGHMEM to express the PAE implementation's
current inability to deal with such unaligned splits.

This patch is essentially a combination of two patches, one written
by Eric Biederman and the other by Eric Dumazet. If they could add
their Signed-off-by: to this, I'd be much obliged.

Signed-off-by: William Irwin <wli@holomorphy.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Cc: Mark Lord <lkml@rtr.ca>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Andi Kleen <ak@suse.de>
2007-05-02 19:27:22 +02:00
..
alpha [PATCH] x86: deflate stack usage in lib/inflate.c 2007-05-02 19:27:15 +02:00
arm [PATCH] x86: deflate stack usage in lib/inflate.c 2007-05-02 19:27:15 +02:00
arm26 [PATCH] x86: deflate stack usage in lib/inflate.c 2007-05-02 19:27:15 +02:00
avr32 AVR32: Remove useless config option "GENERIC_BUST_SPINLOCK". 2007-04-27 13:45:26 +02:00
cris [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
frv [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
h8300 [PATCH] Declare init_irq_proc before we use it. 2007-02-19 14:21:50 -08:00
i386 [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split. 2007-05-02 19:27:22 +02:00
ia64 [AF_RXRPC/AFS]: Arch-specific fixes. 2007-04-27 15:28:45 -07:00
m32r [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
m68k [PATCH] Declare init_irq_proc before we use it. 2007-02-19 14:21:50 -08:00
m68knommu [PATCH] m68knommu: remove local_bh_count 2007-03-06 18:08:38 -08:00
mips [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
parisc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
powerpc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
ppc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
s390 [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sh [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sh64 [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sparc [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
sparc64 [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00
um [PATCH] i386: Add an option for the VIA C7 which sets appropriate L1 cache 2007-05-02 19:27:05 +02:00
v850 kbuild: Replace remaining "depends" with "depends on" 2007-02-17 19:05:24 +01:00
x86_64 [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c 2007-05-02 19:27:21 +02:00
xtensa [PATCH] x86: Allow percpu variables to be page-aligned 2007-05-02 19:27:12 +02:00