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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/arch/ia64/include/asm/spinlock.h
.. .. @@ -73,6 +73,8 @@
73 73  {
74 74  	unsigned short	*p = (unsigned short *)&lock->lock + 1, tmp;
75 75  
76 +	/* This could be optimised with ARCH_HAS_MMIOWB */
77 +	mmiowb();
76 78  	asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
77 79  	WRITE_ONCE(*p, (tmp + 2) & ~1);
78 80  }

..	..	@@ -73,6 +73,8 @@
73	73	{
74	74	unsigned short p = (unsigned short )&lock->lock + 1, tmp;
75	75
	76	+ /* This could be optimised with ARCH_HAS_MMIOWB */
	77	+ mmiowb();
76	78	asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
77	79	WRITE_ONCE(*p, (tmp + 2) & ~1);
78	80	}