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authorArd Biesheuvel <ard.biesheuvel@arm.com>2019-05-23 13:22:54 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2019-06-24 20:10:39 +0300
commit4739d53fcd1df8a9f6f72bb02a3a1d852ad252b3 (patch)
treee5f824c41f3e1de19dc0f4df5401bad920abf0ba /mm/vmalloc.c
parent7dfac3c5f40eb92841147eccf1b96f428b10131f (diff)
downloadlinux-4739d53fcd1df8a9f6f72bb02a3a1d852ad252b3.tar.xz
arm64/mm: wire up CONFIG_ARCH_HAS_SET_DIRECT_MAP
Wire up the special helper functions to manipulate aliases of vmalloc regions in the linear map. Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'mm/vmalloc.c')
-rw-r--r--mm/vmalloc.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7350a124524b..6bd7b515995c 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2128,17 +2128,6 @@ static void vm_remove_mappings(struct vm_struct *area, int deallocate_pages)
int flush_reset = area->flags & VM_FLUSH_RESET_PERMS;
int i;
- /*
- * The below block can be removed when all architectures that have
- * direct map permissions also have set_direct_map_() implementations.
- * This is concerned with resetting the direct map any an vm alias with
- * execute permissions, without leaving a RW+X window.
- */
- if (flush_reset && !IS_ENABLED(CONFIG_ARCH_HAS_SET_DIRECT_MAP)) {
- set_memory_nx(addr, area->nr_pages);
- set_memory_rw(addr, area->nr_pages);
- }
-
remove_vm_area(area->addr);
/* If this is not VM_FLUSH_RESET_PERMS memory, no need for the below. */