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| author | Sven Eckelmann <sven@narfation.org> | 2016-06-25 16:44:06 +0200 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2016-08-09 07:54:32 +0200 |
| commit | 86452f81d200d4d6ad489ef84311030eff84dd84 (patch) | |
| tree | 6d83f692b7ae449a46400cc25a733abb5e7b4052 /net/batman-adv/translation-table.h | |
| parent | batman-adv: Introduce forward packet creation helper (diff) | |
| download | linux-86452f81d200d4d6ad489ef84311030eff84dd84.tar.xz linux-86452f81d200d4d6ad489ef84311030eff84dd84.zip | |
batman-adv: use kmem_cache for translation table
The translation table (global, local) is usually the part of batman-adv
which has the most dynamical allocated objects. Most of them
(tt_local_entry, tt_global_entry, tt_orig_list_entry, tt_change_node,
tt_req_node, tt_roam_node) are equally sized. So it makes sense to have
them allocated from a kmem_cache for each type.
This approach allowed a small wireless router (TP-Link TL-841NDv8; SLUB
allocator) to store 34% more translation table entries compared to the
current implementation.
[1] https://open-mesh.org/projects/batman-adv/wiki/Kmalloc-kmem-cache-tests
Reported-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to '')
| -rw-r--r-- | net/batman-adv/translation-table.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h index 7c7e2c006bfe..02b0f85527cc 100644 --- a/net/batman-adv/translation-table.h +++ b/net/batman-adv/translation-table.h @@ -59,4 +59,7 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv, bool batadv_tt_global_is_isolated(struct batadv_priv *bat_priv, const u8 *addr, unsigned short vid); +int batadv_tt_cache_init(void); +void batadv_tt_cache_destroy(void); + #endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */ |