netprio_cgroup: fix an off-by-one bug
# mount -t cgroup xxx /mnt # mkdir /mnt/tmp # cat /mnt/tmp/net_prio.ifpriomap lo 0 eth0 0 virbr0 0 # echo 'lo 999' > /mnt/tmp/net_prio.ifpriomap # cat /mnt/tmp/net_prio.ifpriomap lo 999 eth0 0 virbr0 4101267344 We got weired output, because we exceeded the boundary of the array. We may even crash the kernel.. Origionally-authored-by:Li Zefan <lizf@cn.fujitsu.com> Signed-off-by:
Li Zefan <lizf@cn.fujitsu.com> Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
027a3b61
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