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(parent: a30e50c) | patch
netlink: add flow control for memory mapped I/O
authorPatrick McHardy <kaber@trash.net>
Wed, 17 Apr 2013 06:47:05 +0000 (06:47 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 19 Apr 2013 18:57:58 +0000 (14:57 -0400)
commit42788a370e94ce21e304888ce09067a170853026
tree13cdf72588bd1124daf8bb74f8d1d27ab060ca2btree | snapshot
parenta30e50c4ebdccd7ca60e841e35f585d5c73a1f3bcommit | diff
netlink: add flow control for memory mapped I/O

Add flow control for memory mapped RX. Since user-space usually doesn't
invoke recvmsg() when using memory mapped I/O, flow control is performed
in netlink_poll(). Dumps are allowed to continue if at least half of the
ring frames are unused.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/netlink/af_netlink.c diff | blob | history
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