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(parent: b8c26a3) | patch
net: convert TCP/DCCP ehash rwlocks to spinlocks
authorEric Dumazet <dada1@cosmosbay.com>
Fri, 21 Nov 2008 04:39:09 +0000 (20:39 -0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 21 Nov 2008 04:39:09 +0000 (20:39 -0800)
commit9db66bdcc83749affe61c61eb8ff3cf08f42afec
tree81bb20e4f569d3b44731498428277db9d77fa7a9tree | snapshot (tar.gz zip)
parentb8c26a33c8b6f0a150e9cb38ed80b890be55395ccommit | diff
net: convert TCP/DCCP ehash rwlocks to spinlocks

Now TCP & DCCP use RCU lookups, we can convert ehash rwlocks to spinlocks.

/proc/net/tcp and other seq_file 'readers' can safely be converted to 'writers'.

This should speedup writers, since spin_lock()/spin_unlock()
only use one atomic operation instead of two for write_lock()/write_unlock()

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/inet_hashtables.h diff | blob | blame | history
net/ipv4/inet_hashtables.c diff | blob | blame | history
net/ipv4/inet_timewait_sock.c diff | blob | blame | history
net/ipv4/tcp_ipv4.c diff | blob | blame | history
net/ipv6/inet6_hashtables.c diff | blob | blame | history