kernel_fpu_begin() is __kernel_fpu_begin() with a preempt_disable(). Move the kernel_fpu_begin() debugging check into __kernel_fpu_begin(), so that users of __kernel_fpu_begin() may benefit from it as well.
Cc: Andy Lutomirski <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/kernel/fpu/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c index 63496c49a590..843901f10754 100644 --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -109,6 +109,8 @@ void __kernel_fpu_begin(void) { struct fpu *fpu = ¤t->thread.fpu; + WARN_ON_ONCE(!irq_fpu_usable()); + kernel_fpu_disable(); if (fpu->fpregs_active) { @@ -138,7 +140,6 @@ EXPORT_SYMBOL(__kernel_fpu_end); void kernel_fpu_begin(void) { preempt_disable(); - WARN_ON_ONCE(!irq_fpu_usable()); __kernel_fpu_begin(); } EXPORT_SYMBOL_GPL(kernel_fpu_begin); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
