Section 2

Section 2 of the manual describes the Linux system calls. A system call is an entry point into the Linux kernel. Usually, system calls are not invoked directly: instead, most system calls have corresponding C library wrapper functions which perform the steps required (e.g., trapping to kernel mode) in order to invoke the system call. Thus, making a system call looks the same as invoking a normal library function.

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nanosleep: high-resolution sleep
nanosleep: high resolution sleep
newfstatat: stat, fstat, lstat, fstatat - get file status
nfsservctl: syscall interface to kernel nfs daemon
nfssvc: NFS services
nice: change process priority
nmount: mount , nmount , unmount — mount or dismount a file system
ntp_adjtime: ntp_adjtime , ntp_gettime — Network Time Protocol (NTP) daemon interface system calls
ntp_gettime: ntp_adjtime , ntp_gettime — Network Time Protocol (NTP) daemon interface system calls
nvme_admin_opcode: enum nvme_admin_opcode - Known NVMe admin opcodes
nvme_admin_passthru: Submit an nvme passthrough command
nvme_admin_passthru64: Submit a 64-bit nvme passthrough command
nvme_ae_info_css_nvm: enum nvme_ae_info_css_nvm - Asynchronous Event Information - I/O Command Specific Status
nvme_ae_info_error: enum nvme_ae_info_error - Asynchronous Event Information - Error Status
nvme_ae_info_notice: enum nvme_ae_info_notice - Asynchronous Event Information - Notice
nvme_ae_info_smart: enum nvme_ae_info_smart - Asynchronous Event Information - SMART / Health Status
nvme_ae_type: enum nvme_ae_type - Asynchronous Event Type
nvme_aggregate_endurance_group_event: struct nvme_aggregate_endurance_group_event - Endurance Group Event Aggregate
nvme_aggregate_predictable_lat_event: struct nvme_aggregate_predictable_lat_event - Predictable Latency Event Aggregate Log Page
nvme_ana_group_desc: struct nvme_ana_group_desc - ANA Group Descriptor
nvme_ana_log: struct nvme_ana_log - Asymmetric Namespace Access Log
nvme_ana_state: enum nvme_ana_state - ANA Group Descriptor - Asymmetric Namespace Access State
nvme_apst_entry: enum nvme_apst_entry - Autonomous Power State Transition
nvme_boot_partition: struct nvme_boot_partition - Boot Partition Log
nvme_capacity_config_desc: struct nvme_capacity_config_desc - Capacity Configuration structure definitions
nvme_capacity_mgmt: Capacity management command
nvme_change_ns_event: struct nvme_change_ns_event - Change Namespace Event Data
nvme_channel_config_desc: struct nvme_channel_config_desc - Channel Configuration Descriptor
nvme_cmb_size: Calculate size of the controller memory buffer
nvme_cmd_effects: enum nvme_cmd_effects - Commands Supported and Effects
nvme_cmd_effects_log: struct nvme_cmd_effects_log - Commands Supported and Effects Log
nvme_cmd_format_mset: enum nvme_cmd_format_mset - Format NVM - Metadata Settings
nvme_cmd_format_pi: enum nvme_cmd_format_pi - Format NVM - Protection Information
nvme_cmd_format_pil: enum nvme_cmd_format_pil - Format NVM - Protection Information Location
nvme_cmd_format_ses: enum nvme_cmd_format_ses - Format NVM - Secure Erase Settings
nvme_cmd_get_log_lid: enum nvme_cmd_get_log_lid - Get Log Page -Log Page Identifiers
nvme_cmd_get_log_telemetry_host_lsp: enum nvme_cmd_get_log_telemetry_host_lsp - Telemetry Host-Initiated log specific field
nvme_compare: Submit an nvme user compare command
nvme_connect_err: enum nvme_connect_err - nvme connect error codes
nvme_constants: enum nvme_constants - A place to stash various constant nvme values
nvme_copy: Copy command
nvme_copy_range: struct nvme_copy_range - Copy - Source Range Entries Descriptor Format
nvme_copy_range_f1: struct nvme_copy_range_f1 - Copy - Source Range Entries Descriptor Format 1h
nvme_create_ctrl: Allocate an unconnected NVMe controller
nvme_create_root: Initialize root object
nvme_csi: enum nvme_csi - Defined command set indicators
nvme_ctrl_first_ns: Start namespace iterator
nvme_ctrl_first_path: Start path iterator
nvme_ctrl_for_each_ns: Traverse namespaces
nvme_ctrl_for_each_ns_safe: Traverse namespaces
nvme_ctrl_for_each_path: Traverse paths
nvme_ctrl_for_each_path_safe: Traverse paths
nvme_ctrl_get_address: Address string of a controller
nvme_ctrl_get_config: Fabrics configuration of a controller
nvme_ctrl_get_dhchap_host_key: Return host key
nvme_ctrl_get_dhchap_key: Return controller key
nvme_ctrl_get_fd: Get associated file descriptor
nvme_ctrl_get_firmware: Firmware string of a controller
nvme_ctrl_get_host_iface: Host interface name of a controller
nvme_ctrl_get_host_traddr: Host transport address of a controller
nvme_ctrl_get_model: Model of a controller
nvme_ctrl_get_name: sysfs name of a controller
nvme_ctrl_get_numa_node: NUMA node of a controller
nvme_ctrl_get_queue_count: Queue count of a controller
nvme_ctrl_get_serial: Serial number of a controller
nvme_ctrl_get_sqsize: SQ size of a controller
nvme_ctrl_get_state: Running state of an controller
nvme_ctrl_get_subsysnqn: Subsystem NQN of a controller
nvme_ctrl_get_subsystem: Parent subsystem of a controller
nvme_ctrl_get_sysfs_dir: sysfs directory of a controller
nvme_ctrl_get_traddr: Transport address of a controller
nvme_ctrl_get_transport: Transport type of a controller
nvme_ctrl_get_trsvcid: Transport service identifier of a controller
nvme_ctrl_identify: Issues an 'identify controller' command
nvme_ctrl_is_discovered: Returns the value of the 'discovered' flag
nvme_ctrl_is_discovery_ctrl: Check the 'discovery_ctrl' flag
nvme_ctrl_is_persistent: Returns the value of the 'persistent' flag
nvme_ctrl_is_unique_discovery_ctrl: Check the 'unique_discovery_ctrl' flag
nvme_ctrl_list: struct nvme_ctrl_list - Controller List
nvme_ctrl_metadata_type: enum nvme_ctrl_metadata_type - Controller Metadata Element Types
nvme_ctrl_next_ns: Next namespace iterator
nvme_ctrl_next_path: Next path iterator
nvme_ctrl_reset: Initiate a controller reset
nvme_ctrl_set_dhchap_host_key: Set host key
nvme_ctrl_set_dhchap_key: Set controller key
nvme_ctrl_set_discovered: Set the 'discovered' flag
nvme_ctrl_set_discovery_ctrl: Set the 'discovery_ctrl' flag
nvme_ctrl_set_persistent: Set the 'persistent' flag
nvme_ctrl_set_unique_discovery_ctrl: Set the 'unique_discovery_ctrl' flag
nvme_ctrls_filter: Filter for controllers
nvme_data_tfr: enum nvme_data_tfr - Data transfer direction of the command
nvme_default_host: Initializes the default host
nvme_dev_self_test: Start or abort a self test
nvme_directive_dtype: enum nvme_directive_dtype - Directive Types
nvme_directive_receive_doper: enum nvme_directive_receive_doper - Directive Receive Directive Operation
nvme_directive_recv: Receive directive specific data
nvme_directive_recv_identify_parameters: Directive receive identifier parameters
nvme_directive_recv_stream_allocate: Directive receive stream allocate
nvme_directive_recv_stream_parameters: Directive receive stream parameters
nvme_directive_recv_stream_status: Directive receive stream status