diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2018-05-10 20:31:44 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-22 16:58:03 +0200 |
| commit | b7b84401576d3858e9573d69d8287e182444f8e9 (patch) | |
| tree | 65a842b2996295e6c09d0800215e5791a745531d /arch/x86/kernel/cpu/bugs.c | |
| parent | 7c0b2dc44956533c5aac95f07575feef7b63344c (diff) | |
x86/speculation: Rework speculative_store_bypass_update()
commit 0270be3e34efb05a88bc4c422572ece038ef3608 upstream
The upcoming support for the virtual SPEC_CTRL MSR on AMD needs to reuse
speculative_store_bypass_update() to avoid code duplication. Add an
argument for supplying a thread info (TIF) value and create a wrapper
speculative_store_bypass_update_current() which is used at the existing
call site.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/cpu/bugs.c')
| -rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 97987b53acbd..eddbdc843b3f 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -597,7 +597,7 @@ static int ssb_prctl_set(struct task_struct *task, unsigned long ctrl) * mitigation until it is next scheduled. */ if (task == current && update) - speculative_store_bypass_update(); + speculative_store_bypass_update_current(); return 0; } |