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[SPARC64]: Mirror x86_64's PERCPU_ENOUGH_ROOM definition.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-12-14 23:40:57 -08:00
parent 9bc83dcff8
commit 5a089006bf
2 changed files with 12 additions and 5 deletions
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7
arch/sparc64/kernel/smp.c
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@ -1447,11 +1447,8 @@ void __init setup_per_cpu_areas(void)
char *ptr;
/* Copy section for each CPU (we discard the original) */
goal = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
#ifdef CONFIG_MODULES
if (goal < PERCPU_ENOUGH_ROOM)
goal = PERCPU_ENOUGH_ROOM;
#endif
goal = PERCPU_ENOUGH_ROOM;
__per_cpu_shift = 0;
for (size = 1UL; size < goal; size <<= 1UL)
__per_cpu_shift++;

10
include/asm-sparc64/percpu.h
View File

@ -5,6 +5,16 @@
#ifdef CONFIG_SMP
#ifdef CONFIG_MODULES
# define PERCPU_MODULE_RESERVE 8192
#else
# define PERCPU_MODULE_RESERVE 0
#endif
#define PERCPU_ENOUGH_ROOM \
(ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \
PERCPU_MODULE_RESERVE)
extern void setup_per_cpu_areas(void);
extern unsigned long __per_cpu_base;