.TH "nvme_flush" 2 "nvme_flush" "February 2024" "libnvme API manual" LINUX .SH NAME nvme_flush \- Send an nvme flush command .SH SYNOPSIS .B "int" nvme_flush .BI "(int fd " "," .BI "__u32 nsid " ");" .SH ARGUMENTS .IP "fd" 12 File descriptor of nvme device .IP "nsid" 12 Namespace identifier .SH "DESCRIPTION" The Flush command requests that the contents of volatile write cache be made non-volatile. .SH "RETURN" The nvme command status if a response was received (see \fIenum nvme_status_field\fP) or -1 with errno set otherwise.