linux/arch/x86/mm
Thomas Gleixner 8be8f54bae x86: CPA: avoid split of alias mappings
avoid over-eager large page splitup.

When the target area needs to be split or is split already (ioremap)
then the current code enforces the split of large mappings in the alias
regions even if we could avoid it.

Use a separate variable processed in the cpa_data structure to carry
the number of pages which have been processed instead of reusing the
numpages variable. This keeps numpages intact and gives the alias code
a chance to keep large mappings intact.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-29 18:55:42 +01:00
..
discontig_32.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
extable.c x86: unify extable_{32|64}.c 2008-01-30 13:31:41 +01:00
fault.c x86: make dump_pagetable() static 2008-02-14 23:30:19 +01:00
highmem_32.c x86: kmap_atomic() debugging 2008-01-30 13:30:47 +01:00
hugetlbpage.c x86: demacro asm-x86/pgalloc_32.h 2008-01-30 13:33:39 +01:00
init_32.c x86: include proper prototypes for rodata_test 2008-02-14 23:30:20 +01:00
init_64.c x86: fix spontaneous reboot with allyesconfig bzImage 2008-02-26 12:55:56 +01:00
ioremap.c x86: fix leak un ioremap_page_range() failure 2008-02-29 18:55:42 +01:00
k8topology_64.c x86: add PCI IDs to k8topology_64.c 2008-01-30 13:34:12 +01:00
Makefile x86_64: move mm 2007-10-11 11:17:18 +02:00
Makefile_32 x86: unify fault_32|64.c 2008-01-30 13:34:11 +01:00
Makefile_64 x86: unify fault_32|64.c 2008-01-30 13:34:11 +01:00
mmap.c x86: unify mmap_{32|64}.c 2008-01-30 13:31:10 +01:00
numa_64.c x86: reenable support for system without on node0 2008-02-18 20:54:14 +01:00
pageattr-test.c x86: remove over noisy debug printk 2008-02-11 11:24:24 -08:00
pageattr.c x86: CPA: avoid split of alias mappings 2008-02-29 18:55:42 +01:00
pgtable_32.c CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
srat_64.c x86: fix section mismatch in srat_64.c:reserve_hotadd 2008-02-19 16:18:31 +01:00