diff options
author | James Bottomley <jejb@sparkweed.localdomain> | 2006-09-23 21:03:52 -0500 |
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committer | James Bottomley <jejb@sparkweed.localdomain> | 2006-09-23 21:03:52 -0500 |
commit | 1aedf2ccc60fade26c46fae12e28664d0da3f199 (patch) | |
tree | d91083e3079f1ddb942a382ac2b5a7525570ad59 /net/xfrm/xfrm_hash.c | |
parent | dfdc58ba354adb80d67c99f7be84f95a8e02e466 (diff) | |
parent | 1ab9dd0902df4f4ff56fbf672220549090ab28ba (diff) |
Merge mulgrave-w:git/linux-2.6
Conflicts:
include/linux/blkdev.h
Trivial merge to incorporate tag prototypes.
Diffstat (limited to 'net/xfrm/xfrm_hash.c')
-rw-r--r-- | net/xfrm/xfrm_hash.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_hash.c b/net/xfrm/xfrm_hash.c new file mode 100644 index 00000000000..37643bb8768 --- /dev/null +++ b/net/xfrm/xfrm_hash.c @@ -0,0 +1,41 @@ +/* xfrm_hash.c: Common hash table code. + * + * Copyright (C) 2006 David S. Miller (davem@davemloft.net) + */ + +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/bootmem.h> +#include <linux/vmalloc.h> +#include <linux/slab.h> +#include <linux/xfrm.h> + +#include "xfrm_hash.h" + +struct hlist_head *xfrm_hash_alloc(unsigned int sz) +{ + struct hlist_head *n; + + if (sz <= PAGE_SIZE) + n = kmalloc(sz, GFP_KERNEL); + else if (hashdist) + n = __vmalloc(sz, GFP_KERNEL, PAGE_KERNEL); + else + n = (struct hlist_head *) + __get_free_pages(GFP_KERNEL, get_order(sz)); + + if (n) + memset(n, 0, sz); + + return n; +} + +void xfrm_hash_free(struct hlist_head *n, unsigned int sz) +{ + if (sz <= PAGE_SIZE) + kfree(n); + else if (hashdist) + vfree(n); + else + free_pages((unsigned long)n, get_order(sz)); +} |