c2ef45df3b
This tag is intended to mirror the thread info TIF_IA32 flag. Will be used to identify mm's which support 32 bit tasks running in compatibility mode without requiring a reference to the task itself. Signed-off-by: Stephen Wilson <wilsons@start.ca> Reviewed-by: Michel Lespinasse <walken@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
33 lines
537 B
C
33 lines
537 B
C
#ifndef _ASM_X86_MMU_H
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#define _ASM_X86_MMU_H
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#include <linux/spinlock.h>
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#include <linux/mutex.h>
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/*
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* The x86 doesn't have a mmu context, but
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* we put the segment information here.
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*/
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typedef struct {
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void *ldt;
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int size;
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struct mutex lock;
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void *vdso;
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#ifdef CONFIG_X86_64
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/* True if mm supports a task running in 32 bit compatibility mode. */
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unsigned short ia32_compat;
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#endif
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} mm_context_t;
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#ifdef CONFIG_SMP
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void leave_mm(int cpu);
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#else
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static inline void leave_mm(int cpu)
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{
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}
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#endif
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#endif /* _ASM_X86_MMU_H */
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