Suresh Siddha b9af7c0d44 x86-64: preserve large page mapping for 1st 2MB kernel txt with CONFIG_DEBUG_RODATA ... In the first 2MB, kernel text is co-located with kernel static page tables setup by head_64.S. CONFIG_DEBUG_RODATA chops this 2MB large page mapping to small 4KB pages as we mark the kernel text as RO, leaving the static page tables as RW. With CONFIG_DEBUG_RODATA disabled, OLTP run on NHM-EP shows 1% improvement with 2% reduction in system time and 1% improvement in iowait idle time. To recover this, move the kernel static page tables to .data section, so that we don't have to break the first 2MB of kernel text to small pages with CONFIG_DEBUG_RODATA. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <20091014220254.063193621@sbs-t61.sc.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2009-10-20 14:46:00 +09:00
..
kmemcheck	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vegard/kmemcheck	2009-09-22 08:07:54 -07:00
dump_pagetables.c	x86: remove (null) in /sys kernel_page_tables	2009-04-14 11:50:22 +02:00
extable.c	x86: uaccess: introduce try and catch framework	2009-01-23 17:17:36 -08:00
fault.c	Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6	2009-09-24 07:53:22 -07:00
gup.c	Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-20 11:29:32 -07:00
highmem_32.c	Merge branch 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2009-09-14 17:43:43 -07:00
hugetlbpage.c	x86: ignore VM_LOCKED when determining if hugetlb-backed page tables can be shared or not	2009-05-29 08:40:03 -07:00
init_32.c	x86: Export k8 physical topology	2009-10-12 22:56:45 +02:00
init_64.c	x86-64: preserve large page mapping for 1st 2MB kernel txt with CONFIG_DEBUG_RODATA	2009-10-20 14:46:00 +09:00
init.c	x86: split NX setup into separate file to limit unstack-protected code	2009-09-21 13:56:58 -07:00
iomap_32.c	x86, pat: Add PAT reserve free to io_mapping* APIs	2009-08-26 15:41:16 -07:00
ioremap.c	Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-09-15 09:19:38 -07:00
k8topology_64.c	x86: Export k8 physical topology	2009-10-12 22:56:45 +02:00
kmmio.c	Merge branch 'linus' into tracing/core	2009-05-07 11:17:34 +02:00
Makefile	x86: split NX setup into separate file to limit unstack-protected code	2009-09-21 13:56:58 -07:00
memtest.c	x86: memtest: use pointers of equal type for comparison	2009-06-11 16:26:35 +02:00
mmap.c	x86: Increase MIN_GAP to include randomized stack	2009-09-10 17:00:12 -07:00
mmio-mod.c	tracing: x86, mmiotrace: only register for die notifier when tracer active	2009-04-29 11:33:34 +02:00
numa_32.c	x86: Export k8 physical topology	2009-10-12 22:56:45 +02:00
numa_64.c	x86: Interleave emulated nodes over physical nodes	2009-10-12 22:56:46 +02:00
numa.c	cpumask: convert node_to_cpumask_map[] to cpumask_var_t	2009-03-13 14:35:31 +01:00
pageattr-test.c	x86: make sure the CPA test code's use of _PAGE_UNUSED1 is obvious	2008-09-05 17:09:57 +02:00
pageattr.c	Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel	2009-09-24 10:30:41 -07:00
pat.c	x86: Reduce verbosity of "PAT enabled" kernel message	2009-09-24 11:35:19 +02:00
pf_in.c	x86: fix mmiotrace 8-bit register decoding	2008-10-14 10:33:50 +02:00
pf_in.h	x86 mmiotrace: move files into arch/x86/mm/.	2008-05-24 11:25:37 +02:00
pgtable_32.c	x86/32: no need to use set_pte_present in set_pte_vaddr	2009-03-19 14:04:18 +01:00
pgtable.c	x86, 32-bit: Fix double accounting in reserve_top_address()	2009-08-04 16:27:29 +02:00
physaddr.c	x86: split __phys_addr out into separate file	2009-09-10 11:48:55 -07:00
physaddr.h	x86: split __phys_addr out into separate file	2009-09-10 11:48:55 -07:00
setup_nx.c	x86: split NX setup into separate file to limit unstack-protected code	2009-09-21 13:56:58 -07:00
srat_32.c	x86: Decrease the level of some NUMA messages to KERN_DEBUG	2009-09-06 06:32:23 +02:00
srat_64.c	x86: Interleave emulated nodes over physical nodes	2009-10-12 22:56:46 +02:00
testmmiotrace.c	x86: add far read test to testmmiotrace	2009-03-02 10:20:35 +01:00
tlb.c	cpumask: use mm_cpumask() wrapper: x86	2009-09-24 09:34:52 +09:30