• Eric Dumazet's avatar
    inetpeer: restore small inet_peer structures · 317fe0e6
    Eric Dumazet authored
    Addition of rcu_head to struct inet_peer added 16bytes on 64bit arches.
    Thats a bit unfortunate, since old size was exactly 64 bytes.
    This can be solved, using an union between this rcu_head an four fields,
    that are normally used only when a refcount is taken on inet_peer.
    rcu_head is used only when refcnt=-1, right before structure freeing.
    Add a inet_peer_refcheck() function to check this assertion for a while.
    We can bring back SLAB_HWCACHE_ALIGN qualifier in kmem cache creation.
    Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
inetpeer.h 1.76 KB