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authorDavid S. Miller <davem@davemloft.net>2010-12-08 21:16:57 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-09 10:46:36 -0800
commitdefb3519a64141608725e2dac5a5aa9a3c644bae (patch)
tree2f44985e44aef53a0d99991b9f5c2f0eb6dbf4ad /include/net/inet_sock.h
parentcan: slcan: Add missing linux/sched.h include. (diff)
downloadlinux-dev-defb3519a64141608725e2dac5a5aa9a3c644bae.tar.xz
linux-dev-defb3519a64141608725e2dac5a5aa9a3c644bae.zip
net: Abstract away all dst_entry metrics accesses.
Use helper functions to hide all direct accesses, especially writes, to dst_entry metrics values. This will allow us to: 1) More easily change how the metrics are stored. 2) Implement COW for metrics. In particular this will help us put metrics into the inetpeer cache if that is what we end up doing. We can make the _metrics member a pointer instead of an array, initially have it point at the read-only metrics in the FIB, and then on the first set grab an inetpeer entry and point the _metrics member there. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
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