The examples in the io_uring_setup.2 man patch erroneously ORs
the protection bits and mmap flags, fix it up.
Signed-off-by: Ian Gulliver <git@flamingcow.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
With the recent change to ensure that submission side errors that
happen on behalf of an sqe are returned in the form of a cqe rather
than -1/errno from the system call, make sure that the man page
reflects that.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This cache hint has been removed from the io_uring series, as there's
some hesitation to leak this information to userspace. Remove it from
the header file and the man page. We can always re-introduce it later,
if we get some variant of this included.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
min_complete means slightly different things depending on how the ring
was setup.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
With a recent change to the kernel side, we now fully guarantee that
once io_uring_enter(2) returns that X entries have been submitted, it's
completely safe to reuse tohse entries. This used to not always be the
case, if an SQE had to be punted to async context for submission.
This makes for a more reliable and nicer interface.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Initial man page for io_uring_setup. Content was taken from the kernel
commit logs and from an LWN article written by Jon Corbet.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The man page suggests that IOSQE_FIXED_FILE must be specified for all
sqes when the io_uring instance has files registered. This is not
the case, so clear that up.
Also fix a typo (few->new) while we're in there.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This also includes a couple of whitespace cleanups. Most man pages
don't leave spaces between directives.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Initial content was taken from the kernel commits (Jens Axboe).
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
