diff mbox series

[v13,02/40] mm: Define VM_HIGH_ARCH_6

Message ID 20241001-arm64-gcs-v13-2-222b78d87eee@kernel.org
State New
Headers show
Series arm64/gcs: Provide support for GCS in userspace | expand

Commit Message

Mark Brown Oct. 1, 2024, 10:58 p.m. UTC 
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: Mark Brown <broonie@kernel.org>
---
 include/linux/mm.h | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/include/linux/mm.h b/include/linux/mm.h
index ecf63d2b0582..182bad0c55df 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -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