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Commit c2a4969b authored by Dean Roe's avatar Dean Roe Committed by Tony Luck
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[IA64-SGI] fix the size of __sn_cnodeid_to_nasid 



The __sn_cnodeid_to_nasid array was incorrectly sized at MAX_NUMNODES.
On a large system, this array could overflow.  The following patch
corrects this by defining it to MAX_COMPACT_NODES.

Signed-off-by: default avatarDean Roe <roe@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent 9c65cb9b

arch/ia64/sn/kernel/setup.c

+1 −1
Original line number Diff line number Diff line
@@ -75,7 +75,7 @@ EXPORT_SYMBOL(sn_rtc_cycles_per_second); 
DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);

EXPORT_PER_CPU_SYMBOL(__sn_hub_info);



DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);

DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]);

EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid);



DEFINE_PER_CPU(struct nodepda_s *, __sn_nodepda);

include/asm-ia64/sn/arch.h

+1 −1
Original line number Diff line number Diff line
@@ -70,7 +70,7 @@ DECLARE_PER_CPU(struct sn_hub_info_s, __sn_hub_info); 
 * Compact node ID to nasid mappings kept in the per-cpu data areas of each

 * cpu.

 */

DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);

DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_COMPACT_NODES]);

#define sn_cnodeid_to_nasid	(&__get_cpu_var(__sn_cnodeid_to_nasid[0]))