The following commit has been merged into the x86/mm branch of tip:
Commit-ID: 8bb9bf242d1fee925636353807c511d54fde8986
Gitweb: https://git.kernel.org/tip/8bb9bf242d1fee925636353807c511d54fde8986
Author: Joerg Roedel <jroedel@xxxxxxx>
AuthorDate: Tue, 21 Jul 2020 11:59:52 +02:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Mon, 27 Jul 2020 12:32:29 +02:00
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@xxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Reviewed-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200721095953.6218-3-joro@xxxxxxxxxx
---
arch/x86/include/asm/pgtable_64_types.h | 2 --
arch/x86/mm/init_64.c | 5 -----
2 files changed, 7 deletions(-)
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
index 8f63efb..52e5f5f 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 e76bdb0..e0cd2df 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.
|