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| author | Jens Axboe <axboe@kernel.dk> | 2019-02-05 11:42:04 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-02-05 11:42:04 -0700 |
| commit | 8471fb944da2a3b1a9e576d61875e430f65a1cd7 (patch) | |
| tree | 5a5a71917a73a093359998aa74fb09a771b4d5d0 /man | |
| parent | 450033065f991497b1fc423c3402d0d9fef432f3 (diff) | |
man/io_uring_setup: mention that IORING_SETUP_SQPOLL needs fixed files
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'man')
| -rw-r--r-- | man/io_uring_setup.2 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/man/io_uring_setup.2 b/man/io_uring_setup.2 index bf249e7..a2f4350 100644 --- a/man/io_uring_setup.2 +++ b/man/io_uring_setup.2 @@ -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 |