NAME sysctl - read/write system parameters SYNOPSIS #include #include <linux/sysctl.h> [[deprecated]] int _sysctl(struct __sysctl_args ... exists on current kernels! See NOTES. T…Notes _llseek (2) 1.2 _newselect (2) 2.0 _sysctl (2) 2.0 Removed in 5.5 acceptenabling TCP Fast Open client support on sysctl net.ipv4.tcp_fastopen . Refer to TCP_FASTOPEN_CONNECTmember of the sysctl_hugetlb_shm_group group; see the description of /proc/sys/vm/sysctl_hugetlb_shm_group in procenabling TCP Fast Open client support on sysctl net.ipv4.tcp_fastopen . Refer to TCP_FASTOPEN_CONNECTenabling TCP Fast Open client support on sysctl net.ipv4.tcp_fastopen . Refer to TCP_FASTOPEN_CONNECTspecified, the protected_fifos or protected_regular sysctl is enabled, the file already existsmember of the sysctl_hugetlb_shm_group group; see the description of /proc/sys/vm/sysctl_hugetlb_shm_group in procspecified, the protected_fifos or protected_regular sysctl is enabled, the file already existsmember of the sysctl_hugetlb_shm_group group; see the description of /proc/sys/vm/sysctl_hugetlb_shm_group in procspecified, the protected_fifos or protected_regular sysctl is enabled, the file already existsmember of the sysctl_hugetlb_shm_group group; see the description of /proc/sys/vm/sysctl_hugetlb_shm_group in proc