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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2021-06-04 17:17:34 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-06-04 14:25:14 -0700 |
| commit | a4e9f8e3287c9eb6bf70df982870980dd3341863 (patch) | |
| tree | d1b7068678c63f49dfec3df2ebe0570c9777baeb /drivers/net/wireguard/peer.h | |
| parent | wireguard: use synchronize_net rather than synchronize_rcu (diff) | |
| download | wireguard-linux-a4e9f8e3287c9eb6bf70df982870980dd3341863.tar.xz wireguard-linux-a4e9f8e3287c9eb6bf70df982870980dd3341863.zip | |
wireguard: peer: allocate in kmem_cache
With deployments having upwards of 600k peers now, this somewhat heavy
structure could benefit from more fine-grained allocations.
Specifically, instead of using a 2048-byte slab for a 1544-byte object,
we can now use 1544-byte objects directly, thus saving almost 25%
per-peer, or with 600k peers, that's a savings of 303 MiB. This also
makes wireguard's memory usage more transparent in tools like slabtop
and /proc/slabinfo.
Fixes: 8b5553ace83c ("wireguard: queueing: get rid of per-peer ring buffers")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Cc: stable@vger.kernel.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/wireguard/peer.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireguard/peer.h b/drivers/net/wireguard/peer.h index 8d53b687a1d1..76e4d3128ad4 100644 --- a/drivers/net/wireguard/peer.h +++ b/drivers/net/wireguard/peer.h @@ -80,4 +80,7 @@ void wg_peer_put(struct wg_peer *peer); void wg_peer_remove(struct wg_peer *peer); void wg_peer_remove_all(struct wg_device *wg); +int wg_peer_init(void); +void wg_peer_uninit(void); + #endif /* _WG_PEER_H */ |