1. 30 Aug, 2021 1 commit
    • Jens Axboe's avatar
      io-wq: check max_worker limits if a worker transitions bound state · ecc53c48
      Jens Axboe authored
      For the two places where new workers are created, we diligently check if
      we are allowed to create a new worker. If we're currently at the limit
      of how many workers of a given type we can have, then we don't create
      any new ones.
      
      If you have a mixed workload with various types of bound and unbounded
      work, then it can happen that a worker finishes one type of work and
      is then transitioned to the other type. For this case, we don't check
      if we are actually allowed to do so. This can cause io-wq to temporarily
      exceed the allowed number of workers for a given type.
      
      When retrieving work, check that the types match. If they don't, check
      if we are allowed to transition to the other type. If not, then don't
      handle the new work.
      
      Cc: stable@vger.kernel.org
      Reported-by: default avatarJohannes Lundberg <johalun0@gmail.com>
      Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
      ecc53c48
  2. 29 Aug, 2021 4 commits
  3. 27 Aug, 2021 5 commits
  4. 25 Aug, 2021 5 commits
  5. 23 Aug, 2021 25 commits