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authorEric Dumazet <edumazet@google.com>2015-04-10 16:07:18 +0300
committerDavid S. Miller <davem@davemloft.net>2015-04-13 04:16:05 +0300
commit52db70dca5c206741f4f5c89410a2d32864f9840 (patch)
tree062b1d5355a19d40047ce39798bf38e9cfddeb7a /security
parent4e78eb0dbf867ccf206706ff2af34084f71a99bf (diff)
downloadlinux-52db70dca5c206741f4f5c89410a2d32864f9840.tar.xz
tcp: do not cache align timewait sockets
With recent adoption of skc_cookie in struct sock_common, struct tcp_timewait_sock size increased from 192 to 200 bytes on 64bit arches. SLAB rounds then to 256 bytes. It is time to drop SLAB_HWCACHE_ALIGN constraint for twsk_slab. This saves about 12 MB of memory on typical configuration reaching 262144 timewait sockets, and has no noticeable impact on performance. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security')
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