Hi Linus,
Here's a set of changes/fixes that should go into 5.5-rc. This pull
request contains:
- A tweak to IOSQE_IO_LINK (also marked for stable) to allow links that
don't sever if the result is < 0. This is mostly for linked timeouts,
where if we ask for a pure timeout we always get -ETIME. This makes
links useless for that case, hence allow a case where it works.
- Five minor optimizations to fix and improve cases that regressed
since v5.4.
- An SQTHREAD locking fix.
- A sendmsg/recvmsg iov assignment fix.
- Net fix where read_iter/write_iter don't honor IOCB_NOWAIT, and
subsequently ensuring that works for io_uring.
- Fix a case where for an invalid opcode we might return -EBADF instead
of -EINVAL, if the ->fd of that sqe was set to an invalid fd value.
Please pull!
git://git.kernel.dk/linux-block.git tags/io_uring-5.5-20191212
----------------------------------------------------------------
Jens Axboe (11):
io_uring: allow unbreakable links
io-wq: remove worker->wait waitqueue
io-wq: briefly spin for new work after finishing work
io_uring: sqthread should grab ctx->uring_lock for submissions
io_uring: deferred send/recvmsg should assign iov
io_uring: don't dynamically allocate poll data
io_uring: run next sqe inline if possible
io_uring: only hash regular files for async work execution
net: make socket read/write_iter() honor IOCB_NOWAIT
io_uring: add sockets to list of files that support non-blocking issue
io_uring: ensure we return -EINVAL on unknown opcode
fs/io-wq.c | 34 ++++++---
fs/io-wq.h | 7 +-
fs/io_uring.c | 168 +++++++++++++++++++++++-------------------
include/uapi/linux/io_uring.h | 40 +++++-----
net/socket.c | 4 +-
5 files changed, 146 insertions(+), 107 deletions(-)
--
Jens Axboe
