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man/io_uring_setup: mention that IORING_SETUP_SQPOLL needs fixed files

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Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Jens Axboe
2019-02-05 11:42:04 -07:00
parent 450033065f
commit 8471fb944d
1 changed files with 9 additions and 0 deletions
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9
man/io_uring_setup.2
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@@ -108,6 +108,15 @@ is a submission queue ring setup using the
.I struct io_sqring_offsets
described below.
.TP
.BR
To successfully use this feature, the application must register a set of files
to be used for IO through
.B io_uring_register(2)
using the
.B IORING_REGISTER_FILES
opcode. Failure to do so will result in submitted IO being errored with
.B EBADF.
.TP
.BR IORING_SETUP_SQ_AFF
If this flag is specified, then the poll thread will be bound to the
cpu set in the