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[XFRM]: Dynamic xfrm_state hash table sizing.

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The grow algorithm is simple, we grow if:

1) we see a hash chain collision at insert, and
2) we haven't hit the hash size limit (currently 1*1024*1024 slots), and
3) the number of xfrm_state objects is > the current hash mask

All of this needs some tweaking.

Remove __initdata from "hashdist" so we can use it safely at run time.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-08-24 03:08:07 -07:00
parent 8f126e37c0
commit f034b5d4ef
3 changed files with 196 additions and 53 deletions
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2
mm/page_alloc.c
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@ -2363,7 +2363,7 @@ int percpu_pagelist_fraction_sysctl_handler(ctl_table *table, int write,
return 0;
}
__initdata int hashdist = HASHDIST_DEFAULT;
int hashdist = HASHDIST_DEFAULT;
#ifdef CONFIG_NUMA
static int __init set_hashdist(char *str)