RISC-V: Add READ_ONCE in arch_spin_is_locked()



This was just incorrect in the original version.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

parent 9347ce54

arch/riscv/include/asm/spinlock.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -24,7 +24,7 @@

		/* FIXME: Replace this with a ticket lock, like MIPS. */

		#define arch_spin_is_locked(x) ((x)->lock != 0)
		#define arch_spin_is_locked(x) (READ_ONCE((x)->lock) != 0)

		static inline void arch_spin_unlock(arch_spinlock_t *lock)
		{