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| author | Jens Axboe <axboe@kernel.dk> | 2018-12-21 09:10:46 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-02-24 08:20:17 -0700 |
| commit | 0bbb280d7b767e7c86a5adfc87c76a6f09ab0423 (patch) | |
| tree | 5e2b9970b0144b91c5b8def73827aacca82845f4 /block | |
| parent | eae83ce10b4713d9f4f3419af16436f89c1a7172 (diff) | |
block: add bio_set_polled() helper
For the upcoming async polled IO, we can't sleep allocating requests.
If we do, then we introduce a deadlock where the submitter already
has async polled IO in-flight, but can't wait for them to complete
since polled requests must be active found and reaped.
Utilize the helper in the blockdev DIRECT_IO code.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions