It's silly to force the 64-bit CONFIG_GENERIC_LOCKBREAK architectures to kmalloc eight bytes for an indirect page table lock: the lock needs to fit in the space that a pointer to it would occupy, not into an int.
Signed-off-by: Hugh Dickins <[email protected]> --- kernel/bounds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- 3.13-rc4/kernel/bounds.c 2013-11-22 15:40:37.452192638 -0800 +++ linux/kernel/bounds.c 2013-12-15 14:34:36.304485959 -0800 @@ -22,6 +22,6 @@ void foo(void) #ifdef CONFIG_SMP DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS)); #endif - DEFINE(BLOATED_SPINLOCKS, sizeof(spinlock_t) > sizeof(int)); + DEFINE(BLOATED_SPINLOCKS, sizeof(spinlock_t) > sizeof(spinlock_t *)); /* End of constants */ } -- 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/
