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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-04-21 11:20:34 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-04-26 11:00:29 +0200 |
| commit | 127ac915c8e1c11b8209393e700ca16be0efabe8 (patch) | |
| tree | a10211e3901cb5d272e9af4e0a6c8b773442d0e3 /arch/x86/include/asm/paravirt.h | |
| parent | cd30d26cf307b45159cd629d60b989e582372afe (diff) | |
| download | linux-127ac915c8e1c11b8209393e700ca16be0efabe8.tar.bz2 | |
x86/tlb: Move __flush_tlb_one_user() out of line
cpu_tlbstate is exported because various TLB-related functions need access
to it, but cpu_tlbstate is sensitive information which should only be
accessed by well-contained kernel functions and not be directly exposed to
modules.
As a third step, move _flush_tlb_one_user() out of line and hide the
native function. The latter can be static when CONFIG_PARAVIRT is
disabled.
Consolidate the name space while at it and remove the pointless extra
wrapper in the paravirt code.
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200421092559.428213098@linutronix.de
Diffstat (limited to 'arch/x86/include/asm/paravirt.h')
| -rw-r--r-- | arch/x86/include/asm/paravirt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 712e059bc7c6..dcd6517a694a 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -49,6 +49,7 @@ static inline void slow_down_io(void) void native_flush_tlb_local(void); void native_flush_tlb_global(void); +void native_flush_tlb_one_user(unsigned long addr); static inline void __flush_tlb_local(void) { |