| commit | 0a1b8b87d064a47fad9ec475316002da28559207 | [log] [tgz] |
|---|---|---|
| author | Jens Axboe <axboe@kernel.dk> | Mon Nov 26 08:24:43 2018 -0700 |
| committer | Jens Axboe <axboe@kernel.dk> | Mon Nov 26 08:25:53 2018 -0700 |
| tree | 9bc87a52b3fcc1f476d52ae94d6bb7e69e2bfd94 | |
| parent | e7d943910719b44738e86f91a26a64e3b61ae419 [diff] |
block: make blk_poll() take a parameter on whether to spin or not blk_poll() has always kept spinning until it found an IO. This is fine for SYNC polling, since we need to find one request we have pending, but in preparation for ASYNC polling it can be beneficial to just check if we have any entries available or not. Existing callers are converted to pass in 'spin == true', to retain the old behavior. Signed-off-by: Jens Axboe <axboe@kernel.dk>