diff options
| author | Jens Axboe <axboe@kernel.dk> | 2019-07-16 13:56:42 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-07-21 21:46:29 -0600 |
| commit | 6a43074e2f461c2c49a607f9f6f5218d53f97d1e (patch) | |
| tree | e1781f5c8c89749b67b76157dcc8f57c75a581f1 /fs/io_uring.c | |
| parent | 893a1c97205a3ece0cbb3f571a3b972080f3b4c7 (diff) | |
| download | linux-6a43074e2f461c2c49a607f9f6f5218d53f97d1e.tar.bz2 | |
block: properly handle IOCB_NOWAIT for async O_DIRECT IO
A caller is supposed to pass in REQ_NOWAIT if we can't block for any
given operation, but O_DIRECT for block devices just ignore this. Hence
we'll block for various resource shortages on the block layer side,
like having to wait for requests.
Use the new REQ_NOWAIT_INLINE to ask for this error to be returned
inline, so we can handle it appropriately and return -EAGAIN to the
caller.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
0 files changed, 0 insertions, 0 deletions