diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-04-21 11:20:33 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-04-26 11:00:27 +0200 |
| commit | cd30d26cf307b45159cd629d60b989e582372afe (patch) | |
| tree | 6b6642facf33be2c093b9da36d0409a2699ad6a3 /arch/x86/kernel/paravirt.c | |
| parent | 2faf153bb7346b7dfc895f916edf93a86297ec0a (diff) | |
x86/tlb: Move __flush_tlb_global() 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 second step, move __flush_tlb_global() out of line and hide the
native function. The latter can be static when CONFIG_PARAVIRT is
disabled.
Consolidate the namespace 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/20200421092559.336916818@linutronix.de
Diffstat (limited to 'arch/x86/kernel/paravirt.c')
| -rw-r--r-- | arch/x86/kernel/paravirt.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 4cb3d822ea09..6094b007979c 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -160,15 +160,6 @@ unsigned paravirt_patch_insns(void *insn_buff, unsigned len, return insn_len; } -/* - * Global pages have to be flushed a bit differently. Not a real - * performance problem because this does not happen often. - */ -static void native_flush_tlb_global(void) -{ - __native_flush_tlb_global(); -} - static void native_flush_tlb_one_user(unsigned long addr) { __native_flush_tlb_one_user(addr); |