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Old 12-25-2005, 04:32 PM   #1
Thinking
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Registered: Oct 2003
Posts: 249

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kernel: what does ____cacheline_aligned mean?


hiho@ll

i'm just reading some kernel source (drivers/char/random.c)
@row 2127
Code:
static struct keydata {
        __u32 count; /* already shifted to the final position */
        __u32 secret[12];
} ____cacheline_aligned ip_keydata[2];
ip_keydata is defined

but its never initalized
so what does ____cacheline_aligned mean?
or why is ip_keydata not initalized?

thx@ll
 
  


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