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Commit 555934a7 authored by Michael Ellerman's avatar Michael Ellerman
Browse files

x86/pkeys: Move vma_pkey() into asm/pkeys.h 



Move the last remaining pkey helper, vma_pkey() into asm/pkeys.h

Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Reviewed-by: default avatarDave Hansen <dave.hansen@intel.com>
parent dbec10e5

arch/x86/include/asm/mmu_context.h

+0 −10
Original line number Diff line number Diff line
@@ -288,16 +288,6 @@ static inline void arch_unmap(struct mm_struct *mm, struct vm_area_struct *vma, 
		mpx_notify_unmap(mm, vma, start, end);

}



#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS

static inline int vma_pkey(struct vm_area_struct *vma)

{

	unsigned long vma_pkey_mask = VM_PKEY_BIT0 | VM_PKEY_BIT1 |

				      VM_PKEY_BIT2 | VM_PKEY_BIT3;



	return (vma->vm_flags & vma_pkey_mask) >> VM_PKEY_SHIFT;

}

#endif



/*

 * We only want to enforce protection keys on the current process

 * because we effectively have no access to PKRU for other

arch/x86/include/asm/pkeys.h

+8 −0
Original line number Diff line number Diff line
@@ -106,4 +106,12 @@ extern int __arch_set_user_pkey_access(struct task_struct *tsk, int pkey, 
		unsigned long init_val);

extern void copy_init_pkru_to_fpregs(void);



static inline int vma_pkey(struct vm_area_struct *vma)

{

	unsigned long vma_pkey_mask = VM_PKEY_BIT0 | VM_PKEY_BIT1 |

				      VM_PKEY_BIT2 | VM_PKEY_BIT3;



	return (vma->vm_flags & vma_pkey_mask) >> VM_PKEY_SHIFT;

}



#endif /*_ASM_X86_PKEYS_H */

include/linux/pkeys.h

+1 −1
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@ 
#ifndef _LINUX_PKEYS_H

#define _LINUX_PKEYS_H



#include <linux/mm_types.h>

#include <linux/mm.h>



#ifdef CONFIG_ARCH_HAS_PKEYS

#include <asm/pkeys.h>