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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
include/linux/bootmem.h
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@@ -114,7 +114,7 @@ extern void *__init alloc_large_system_hash(const char *tablename,
#else
#define HASHDIST_DEFAULT 0
#endif
extern int __initdata hashdist; /* Distribute hashes across NUMA nodes? */
extern int hashdist; /* Distribute hashes across NUMA nodes? */
#endif /* _LINUX_BOOTMEM_H */