Commit 9ab515b1 authored by Mark Brown's avatar Mark Brown Committed by Catalin Marinas
Browse files

mm: Define VM_HIGH_ARCH_6 



The addition of protection keys means that on arm64 we now use all of the
currently defined VM_HIGH_ARCH_x bits. In order to allow us to allocate a
new flag for GCS pages define VM_HIGH_ARCH_6.

Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241001-arm64-gcs-v13-2-222b78d87eee@kernel.org


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent bcc9d04e

include/linux/mm.h

+2 −0
Original line number Diff line number Diff line
@@ -329,12 +329,14 @@ extern unsigned int kobjsize(const void *objp); 
#define VM_HIGH_ARCH_BIT_3	35	/* bit only usable on 64-bit architectures */

#define VM_HIGH_ARCH_BIT_4	36	/* bit only usable on 64-bit architectures */

#define VM_HIGH_ARCH_BIT_5	37	/* bit only usable on 64-bit architectures */

#define VM_HIGH_ARCH_BIT_6	38	/* bit only usable on 64-bit architectures */

#define VM_HIGH_ARCH_0	BIT(VM_HIGH_ARCH_BIT_0)

#define VM_HIGH_ARCH_1	BIT(VM_HIGH_ARCH_BIT_1)

#define VM_HIGH_ARCH_2	BIT(VM_HIGH_ARCH_BIT_2)

#define VM_HIGH_ARCH_3	BIT(VM_HIGH_ARCH_BIT_3)

#define VM_HIGH_ARCH_4	BIT(VM_HIGH_ARCH_BIT_4)

#define VM_HIGH_ARCH_5	BIT(VM_HIGH_ARCH_BIT_5)

#define VM_HIGH_ARCH_6	BIT(VM_HIGH_ARCH_BIT_6)

#endif /* CONFIG_ARCH_USES_HIGH_VMA_FLAGS */



#ifdef CONFIG_ARCH_HAS_PKEYS