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s390/numa: set node distance to LOCAL_DISTANCE 

[ Upstream commit 535e4fc623 ]

The node distance is hardcoded to 0, which causes a trouble
for some user-level applications. In particular, "libnuma"
expects the distance of a node to itself as LOCAL_DISTANCE.
This update removes the offending node distance override.

Cc: <stable@vger.kernel.org> # 4.4
Fixes: 3a368f742d ("s390/numa: add core infrastructure")
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Sasha Levin 2020-08-28 14:20:57 -04:00 committed by Greg Kroah-Hartman
parent 67f8b390b1
commit a0cfda9cb3
3 changed files with 0 additions and 9 deletions
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1
arch/s390/include/asm/numa.h
View File

@ -17,7 +17,6 @@
void numa_setup(void);
int numa_pfn_to_nid(unsigned long pfn);
int __node_distance(int a, int b);
void numa_update_cpu_topology(void);
extern cpumask_t node_to_cpumask_map[MAX_NUMNODES];

2
arch/s390/include/asm/topology.h
View File

@ -83,8 +83,6 @@ static inline const struct cpumask *cpumask_of_node(int node)
#define pcibus_to_node(bus) __pcibus_to_node(bus)
#define node_distance(a, b) __node_distance(a, b)
#else /* !CONFIG_NUMA */
#define numa_node_id numa_node_id

6
arch/s390/numa/numa.c
View File

@ -49,12 +49,6 @@ void numa_update_cpu_topology(void)
mode->update_cpu_topology();
}
int __node_distance(int a, int b)
{
return mode->distance ? mode->distance(a, b) : 0;
}
EXPORT_SYMBOL(__node_distance);
int numa_debug_enabled;
/*