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Merge branch 'parisc-4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

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Pull parisc fix from Helge Deller:
 "Revert one patch which changed how spinlocks get released. It breaks
  the rwlock implementation in glibc"

* 'parisc-4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Revert "Release spinlocks using ordered store"
This commit is contained in:
Linus Torvalds
2018-11-14 13:42:41 -06:00
parent e2f8b472a7 86d4d068df
commit 857c34cd09
2 changed files with 10 additions and 6 deletions
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4
arch/parisc/include/asm/spinlock.h
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@@ -37,8 +37,8 @@ static inline void arch_spin_unlock(arch_spinlock_t *x)
volatile unsigned int *a;
a = __ldcw_align(x);
/* Release with ordered store. */
__asm__ __volatile__("stw,ma %0,0(%1)" : : "r"(1), "r"(a) : "memory");
mb();
*a = 1;
}
static inline int arch_spin_trylock(arch_spinlock_t *x)