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| author | Mark Brown <broonie@kernel.org> | 2018-05-22 10:28:38 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-05-22 10:28:38 +0100 |
| commit | e1c51aa8705fd78e5259e0515aad3b5003e18550 (patch) | |
| tree | 3728628142a24460d6b488e5331f421f902e5d3a /arch/x86/include/asm/mmu_context.h | |
| parent | 6e49b7fa3083c30688b7fff1b37ed891cd1c30af (diff) | |
| parent | 08556e03ad36b2c6219aba90de88ccf58038e208 (diff) | |
Merge branch 'linux-linaro-lsk-v4.9' into linux-linaro-lsk-v4.9-rtlinux-linaro-lsk-v4.9-rt-test
Diffstat (limited to 'arch/x86/include/asm/mmu_context.h')
| -rw-r--r-- | arch/x86/include/asm/mmu_context.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h index d23e35584f15..5a295bb97103 100644 --- a/arch/x86/include/asm/mmu_context.h +++ b/arch/x86/include/asm/mmu_context.h @@ -12,6 +12,9 @@ #include <asm/tlbflush.h> #include <asm/paravirt.h> #include <asm/mpx.h> + +extern atomic64_t last_mm_ctx_id; + #ifndef CONFIG_PARAVIRT static inline void paravirt_activate_mm(struct mm_struct *prev, struct mm_struct *next) @@ -106,6 +109,8 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { + mm->context.ctx_id = atomic64_inc_return(&last_mm_ctx_id); + #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS if (cpu_feature_enabled(X86_FEATURE_OSPKE)) { /* pkey 0 is the default and always allocated */ |