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authorThomas Gleixner <tglx@linutronix.de>2020-04-21 11:20:32 +0200
committerBorislav Petkov <bp@suse.de>2020-04-26 11:00:05 +0200
commit2faf153bb7346b7dfc895f916edf93a86297ec0a (patch)
tree763c31123cdf2cb76222cc28ffdb6c9df795f377 /arch/x86/platform
parent9020d3956317d052cdddd43e55acdd2970344192 (diff)
x86/tlb: Move __flush_tlb() 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 first step, move __flush_tlb() 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/20200421092559.246130908@linutronix.de
Diffstat (limited to 'arch/x86/platform')
-rw-r--r--arch/x86/platform/uv/tlb_uv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 1fd321f37f1b..6af766c47dd2 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -293,7 +293,7 @@ static void bau_process_message(struct msg_desc *mdp, struct bau_control *bcp,
* This must be a normal message, or retry of a normal message
*/
if (msg->address == TLB_FLUSH_ALL) {
- local_flush_tlb();
+ flush_tlb_local();
stat->d_alltlb++;
} else {
__flush_tlb_one_user(msg->address);