[PATCH v2 0/2] io-wq sharing

[Pavel Begunkov <asml.silence@gmail.com>]

rip-off of Jens io-wq sharing patches allowing multiple io_uring
instances to be bound to a single io-wq. The differences are:
- io-wq, which we would like to be shared, is passed as io_uring fd
- fail, if can't share. IMHO, it's always better to fail fast and loud

I didn't tested it after rebasing, but hopefully won't be a problem.

p.s. on top of ("io_uring/io-wq: don't use static creds/mm assignments")

v2: rebased version

Pavel Begunkov (2):
  io-wq: allow grabbing existing io-wq
  io_uring: add io-wq workqueue sharing

 fs/io-wq.c                    |  8 +++++
 fs/io-wq.h                    |  1 +
 fs/io_uring.c                 | 68 +++++++++++++++++++++++++++--------
 include/uapi/linux/io_uring.h |  4 ++-
 4 files changed, 66 insertions(+), 15 deletions(-)

-- 
2.24.0