Hi,
here is a small patch-set to implement pre-allocation of the P4D/PUD
pages in the vmalloc/ioremap area of the address space. This allows to
remove the synchronization of these mappings for x86-64 and unexporting
the sync_global_pgds() function.
Please review.
Thanks,
Joerg
Changes to v1:
- Made failure at pre-allocation stage fatal
- As a consequence removed the arch_sync_kernel_mappings()
implementation for x86-64
- Unexported sync_global_pgds()
- Removed some left-over debug code from the first patch
Joerg Roedel (3):
x86/mm/64: Pre-allocate p4d/pud pages for vmalloc area
x86/mm/64: Do not sync vmalloc/ioremap mappings
x86/mm/64: Make sync_global_pgds() static
arch/x86/include/asm/pgtable_64.h | 2 -
arch/x86/include/asm/pgtable_64_types.h | 2 -
arch/x86/mm/init_64.c | 59 ++++++++++++++++++++++---
3 files changed, 53 insertions(+), 10 deletions(-)
--
2.17.1
