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| author | Keith Busch <kbusch@kernel.org> | 2023-03-20 22:49:26 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-03-21 00:30:03 +0300 |
| commit | 54bdd67d0f88489ac88f7664b56cb7c93799d84d (patch) | |
| tree | 7c0c5780eb49ae1ca5c33b23c32b566c1b4a7c46 /io_uring | |
| parent | 4cf2c3ab2cdfed71a7f27fe52b4c87877ee79606 (diff) | |
| download | linux-54bdd67d0f88489ac88f7664b56cb7c93799d84d.tar.xz | |
blk-mq: remove hybrid polling
io_uring provides the only way user space can poll completions, and that
always sets BLK_POLL_NOSLEEP. This effectively makes hybrid polling dead
code, so remove it and everything supporting it.
Hybrid polling was effectively killed off with 9650b453a3d4b1, "block:
ignore RWF_HIPRI hint for sync dio", but still potentially reachable
through io_uring until d729cf9acb93119, "io_uring: don't sleep when
polling for I/O", but hybrid polling probably should not have been
reachable through that async interface from the beginning.
Fixes: 9650b453a3d4 ("block: ignore RWF_HIPRI hint for sync dio")
Fixes: d729cf9acb93 ("io_uring: don't sleep when polling for I/O")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20230320194926.3353144-1-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/rw.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/rw.c b/io_uring/rw.c index 4c233910e200..a099dc0543d9 100644 --- a/io_uring/rw.c +++ b/io_uring/rw.c @@ -1002,7 +1002,7 @@ void io_rw_fail(struct io_kiocb *req) int io_do_iopoll(struct io_ring_ctx *ctx, bool force_nonspin) { struct io_wq_work_node *pos, *start, *prev; - unsigned int poll_flags = BLK_POLL_NOSLEEP; + unsigned int poll_flags = 0; DEFINE_IO_COMP_BATCH(iob); int nr_events = 0; |