kernel_optimize_test/arch
Nick Piggin fb0328e2e6 x86: reduce CONFIG_X86_PPRO_FENCE bloat
CONFIG_X86_PPRO_FENCE bloats text:

i386 allmodconf: size mm/built-in.o
           text    data     bss     dec     hex         text ratio
vanilla: 163082   20372   40120  223574   36956          100.00%
bugfix : 163509   20372   40120  224001   36b01            0.26%
noppro : 162191   20372   40120  222683   365db         -  0.55%
both   : 162267   20372   40120  222759   36627         -  0.50% (+0.05% vs noppro)

So with the ppro memory ordering bug out of the way, the PG_uptodate fix
only adds 76 bytes of text.

allow this config to be specified by distros.

[ mingo@elte.hu: x86.git merge ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 13:32:31 +01:00
..
alpha remove __attribute_used__ 2008-01-28 23:21:18 +01:00
arm spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
avr32 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
blackfin all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
cris all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
frv Remove references to "make dep" 2008-01-28 23:22:13 +01:00
h8300 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
ia64 spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
m32r spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
m68k all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
m68knommu all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
mips spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
parisc spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
powerpc spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
ppc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25 2008-01-29 22:54:01 +11:00
s390 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
sh all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
sparc all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
sparc64 spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
um UML: remove remaining FASTCALL uses 2008-01-30 13:31:14 +01:00
v850 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
x86 x86: reduce CONFIG_X86_PPRO_FENCE bloat 2008-01-30 13:32:31 +01:00
xtensa Remove references to "make dep" 2008-01-28 23:22:13 +01:00
.gitignore arch: Ignore arch/i386 and arch/x86_64 2008-01-19 21:29:39 -08:00