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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2017-11-20 12:43:20 +0100 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2017-11-20 13:55:34 +0100 |
| commit | bfddbad031c875e885731ad536f2e301e84be776 (patch) | |
| tree | 41a6f185c81529520cfe0e8296dfe0a1b7f187d9 | |
| parent | 7a62a0551b6007d44e1f75ac29d5d9ea38fef3c6 (diff) | |
| download | man-pages-bfddbad031c875e885731ad536f2e301e84be776.tar.gz | |
io_submit.2: Rewrap source lines
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man2/io_submit.2 | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/man2/io_submit.2 b/man2/io_submit.2 index 28d10942ec..c1e90f8f79 100644 --- a/man2/io_submit.2 +++ b/man2/io_submit.2 @@ -61,45 +61,54 @@ struct iocb { The fields of this structure are as follows: .TP .I aio_data -This is a internal field used by the kernel. Do not modify this field after an +This is a internal field used by the kernel. +Do not modify this field after an .B io_submit (2) call. .TP .I aio_key -This is a internal field used by the kernel. Do not modify this field after an +This is a internal field used by the kernel. +Do not modify this field after an .B io_submit (2) call. .TP .I aio_rw_flags -This defines the R/W flags passed with structure. The valid values are: +This defines the R/W flags passed with structure. +The valid values are: .RS .TP .I RWF_HIPRI High priority request, poll if possible .TP .I RWF_DSYNC -Write operation complete according to requirement of synchronized I/O data integrity. Similar to a file passed +Write operation complete according to requirement of +synchronized I/O data integrity. +Similar to a file passed .B O_DSYNC parameter to .B open(2) .TP .I RWF_SYNC -Write operation complete according to requirement of synchronized I/O file integrity. Similar to a file passed +Write operation complete according to requirement of +synchronized I/O file integrity. +Similar to a file passed .B .O_SYNC parameter to .B open(2) .TP .I RWF_NOWAIT -Don't wait if the I/O will block for operations such as file block allocations, -dirty page flush, mutex locks, or a congested block device inside the kernel. -If any of these conditions are met, the control block is returned immediately -with a return value of +Don't wait if the I/O will block for operations such as +file block allocations, dirty page flush, mutex locks, +or a congested block device inside the kernel. +If any of these conditions are met, the control block is returned +immediately with a return value of .B -EAGAIN in the res field of the io_event structure. .RE .TP .I aio_lio_opcode -This defines the type of I/O to be performed by the iocb structure. The +This defines the type of I/O to be performed by the iocb structure. +The valid values are defined by the enum defined in linux/aio_abi.h: .in +4 .nf @@ -132,7 +141,8 @@ This is the size of the buffer pointed to by This is the file offset at which the I/O operation is to be performed. .TP .I aio_flags -This is the flag to be passed iocb structure. The only valid value is +This is the flag to be passed iocb structure. +The only valid value is .I IOCB_FLAG_RESFD , which indicates that the asynchronous I/O control must signal the file descriptor mentioned in |