diff options
| author | Andrew Morton <akpm@digeo.com> | 2003-01-05 03:51:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2003-01-05 03:51:56 -0800 |
| commit | 9a7dad1c87fc2ba65f2fdc745c69fd5500e04b09 (patch) | |
| tree | d1271be9f3f9aded4cd5dfbdf3a98a3b5379da31 /init | |
| parent | 148b113a1ce387227c23486631a1832422f312d9 (diff) | |
| download | history-9a7dad1c87fc2ba65f2fdc745c69fd5500e04b09.tar.gz | |
[PATCH] Dynamically size the pidhash hash table.
Patch from Bill Irwin. Prodding from me.
The hashtables in kernel/pid.c are 128 kbytes, which is far too large for
very small machines.
So we dynamically size them and allocate them from bootmem. From 16 buckets
on the very smallest machine up to 4096 buckets (effectively half the current
size) with one gigabyte of memory or more.
The patch also switches the hashing from a custom hash over to the more
powerful hash_long().
Diffstat (limited to 'init')
| -rw-r--r-- | init/main.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/init/main.c b/init/main.c index b07fac4e9f02d9..51b822b9d03fb8 100644 --- a/init/main.c +++ b/init/main.c @@ -68,6 +68,7 @@ extern void sysctl_init(void); extern void signals_init(void); extern void buffer_init(void); extern void pidhash_init(void); +extern void pidmap_init(void); extern void pte_chain_init(void); extern void radix_tree_init(void); extern void free_initmem(void); @@ -394,6 +395,7 @@ asmlinkage void __init start_kernel(void) extable_init(); rcu_init(); init_IRQ(); + pidhash_init(); sched_init(); softirq_init(); time_init(); @@ -419,7 +421,7 @@ asmlinkage void __init start_kernel(void) page_address_init(); mem_init(); kmem_cache_sizes_init(); - pidhash_init(); + pidmap_init(); pgtable_cache_init(); pte_chain_init(); fork_init(num_physpages); |