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| author | Joerg Roedel <jroedel@suse.de> | 2020-07-21 11:59:52 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-07-27 12:32:29 +0200 |
| commit | 8bb9bf242d1fee925636353807c511d54fde8986 (patch) | |
| tree | f56f2dd522c8d58a44d334c54e215e957b9914a2 /arch/x86 | |
| parent | x86/mm: Pre-allocate P4D/PUD pages for vmalloc area (diff) | |
| download | linux-8bb9bf242d1fee925636353807c511d54fde8986.tar.xz linux-8bb9bf242d1fee925636353807c511d54fde8986.zip | |
x86/mm/64: Do not sync vmalloc/ioremap mappings
Remove the code to sync the vmalloc and ioremap ranges for x86-64. The
page-table pages are all pre-allocated now so that synchronization is
no longer necessary.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20200721095953.6218-3-joro@8bytes.org
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/pgtable_64_types.h | 2 | ||||
| -rw-r--r-- | arch/x86/mm/init_64.c | 5 |
2 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h index 8f63efb2a2cc..52e5f5f2240d 100644 --- a/arch/x86/include/asm/pgtable_64_types.h +++ b/arch/x86/include/asm/pgtable_64_types.h @@ -159,6 +159,4 @@ extern unsigned int ptrs_per_p4d; #define PGD_KERNEL_START ((PAGE_SIZE / 2) / sizeof(pgd_t)) -#define ARCH_PAGE_TABLE_SYNC_MASK (pgtable_l5_enabled() ? PGTBL_PGD_MODIFIED : PGTBL_P4D_MODIFIED) - #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index e76bdb001460..e0cd2dfd333d 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -217,11 +217,6 @@ void sync_global_pgds(unsigned long start, unsigned long end) sync_global_pgds_l4(start, end); } -void arch_sync_kernel_mappings(unsigned long start, unsigned long end) -{ - sync_global_pgds(start, end); -} - /* * NOTE: This function is marked __ref because it calls __init function * (alloc_bootmem_pages). It's safe to do it ONLY when after_bootmem == 0. |