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authorNeil Horman <nhorman@tuxdriver.com>2010-07-20 04:52:09 +0000
committerDavid S. Miller <davem@davemloft.net>2010-07-20 13:28:04 -0700
commit4b706372f18de53970e4c6887a96459590fef80a (patch)
tree545fe784620c3dc9f0fd8a6efdeb2cbe566779c9 /net/unix
parentd79d991379af35d43f003f162e8650e72965b8ca (diff)
drop_monitor: Add error code to detect duplicate state changes
Patch to add -EAGAIN error to dropwatch netlink message handling code. -EAGAIN will be returned anytime userspace attempts to transition the state of the drop monitor service to a state that its already in. That allows user space to detect this condition, so it doesn't wait for a success ACK that will never arrive. Tested successfully by me Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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