#include <file_internal.h>
Data Fields | |
| uint64_t | ir_magic |
| int | ir_rc |
| m0_bcount_t | ir_copied_nr |
| struct file * | ir_file |
| struct m0_indexvec_varr | ir_ivv |
| struct pargrp_iomap ** | ir_iomaps |
| uint64_t | ir_iomap_nr |
| const struct iovec * | ir_iovec |
| struct m0_sm | ir_sm |
| enum io_req_type | ir_type |
| bool | ir_direct_io |
| const struct io_request_ops * | ir_ops |
| struct nw_xfer_request | ir_nwxfer |
| struct m0_rm_incoming | ir_in |
| enum sns_repair_state | ir_sns_state |
| uint32_t | ir_dgmap_nr |
| uint64_t * | ir_failed_session |
Detailed Description
io_request - Represents an IO request call. It contains the IO extent, struct nw_xfer_request and the state of IO request. This structure is primarily used to track progress of an IO request. The state transitions of io_request structure are handled by m0_sm structure and its support for chained state transitions.
Definition at line 1368 of file file_internal.h.
Field Documentation
◆ ir_copied_nr
| m0_bcount_t ir_copied_nr |
Number of data bytes copied to/from user space.
Definition at line 1375 of file file_internal.h.
◆ ir_dgmap_nr
| uint32_t ir_dgmap_nr |
Total number of parity-maps associated with this request that are in degraded mode.
Definition at line 1435 of file file_internal.h.
◆ ir_direct_io
| bool ir_direct_io |
Definition at line 1412 of file file_internal.h.
◆ ir_failed_session
| uint64_t* ir_failed_session |
An array holding ids of failed sessions. The vacant entries are marked as ~(uint64_t)0. XXX This is a temporary solution. Sould be removed once MOTR-899 lands into dev.
Definition at line 1443 of file file_internal.h.
◆ ir_file
| struct file* ir_file |
struct file* can point to m0t1fs inode and hence its associated m0_fid structure.
Definition at line 1381 of file file_internal.h.
◆ ir_in
| struct m0_rm_incoming ir_in |
A request to borrow resource from creditor
Definition at line 1419 of file file_internal.h.
◆ ir_iomap_nr
| uint64_t ir_iomap_nr |
Number of pargrp_iomap structures.
Definition at line 1398 of file file_internal.h.
◆ ir_iomaps
| struct pargrp_iomap** ir_iomaps |
Array of struct pargrp_iomap pointers. Each pargrp_iomap structure describes the part of parity group spanned by segments from ::ir_ivec.
Definition at line 1395 of file file_internal.h.
◆ ir_iovec
| const struct iovec* ir_iovec |
Array of iovec structures containing user-space buffers. It is used as is since using a new structure would require conversion.
Definition at line 1405 of file file_internal.h.
◆ ir_ivv
| struct m0_indexvec_varr ir_ivv |
Index vector describing file extents and their lengths. This vector is in sync with the array of iovec structures below.
Definition at line 1388 of file file_internal.h.
◆ ir_magic
| uint64_t ir_magic |
Holds M0_T1FS_IOREQ_MAGIC
Definition at line 1370 of file file_internal.h.
◆ ir_nwxfer
| struct nw_xfer_request ir_nwxfer |
Definition at line 1416 of file file_internal.h.
◆ ir_ops
| const struct io_request_ops* ir_ops |
Definition at line 1414 of file file_internal.h.
◆ ir_rc
| int ir_rc |
Definition at line 1372 of file file_internal.h.
◆ ir_sm
| struct m0_sm ir_sm |
Async state machine to handle state transitions and callbacks.
Definition at line 1408 of file file_internal.h.
◆ ir_sns_state
| enum sns_repair_state ir_sns_state |
State of SNS repair process with respect to file_to_fid(io_request::ir_file). There are only 2 states possible since Motr client IO path involves a file-level distributed lock on global fid.
- either SNS repair is still due on associated global fid.
- or SNS repair has completed on associated global fid.
Definition at line 1429 of file file_internal.h.
◆ ir_type
| enum io_req_type ir_type |
Definition at line 1410 of file file_internal.h.
The documentation for this struct was generated from the following file:
- m0t1fs/linux_kernel/file_internal.h
