[PATCH for v4.9 LTS 70/87] ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int

From: Pavel Tikhomirov [ Upstream commit b007f09072ca8afa118ade333e717ba443e8d807 ] > cat /proc/sys/net/ipv4/tcp_notsent_lowat -1 > echo 4294967295 > /proc/sys/net/ipv4/tcp_notsent_lowat -bash: echo: write error: Invalid argument > echo -2147483648 >

[PATCH for v4.9 LTS 70/87] ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int

From: Pavel Tikhomirov [ Upstream commit b007f09072ca8afa118ade333e717ba443e8d807 ] > cat /proc/sys/net/ipv4/tcp_notsent_lowat -1 > echo 4294967295 > /proc/sys/net/ipv4/tcp_notsent_lowat -bash: echo: write error: Invalid argument > echo -2147483648 > /proc/sys/net/ipv4/tcp_notsent_lowat > cat