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| author | Jens Axboe <axboe@kernel.dk> | 2024-04-01 20:27:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-10 17:38:16 +0300 |
| commit | 7dc1ed215b07d9ea06cb1bb1b42f803d8cb1a2a9 (patch) | |
| tree | c2f088c86a02a2a0c8f3de12600589d0114a5459 /io_uring/alloc_cache.h | |
| parent | da64e0edbb1bd6524b5287be834f31e074409986 (diff) | |
| download | linux-7dc1ed215b07d9ea06cb1bb1b42f803d8cb1a2a9.tar.xz | |
io_uring/rw: don't allow multishot reads without NOWAIT support
commit 2a975d426c82ff05ec1f0b773798d909fe4a3105 upstream.
Supporting multishot reads requires support for NOWAIT, as the
alternative would be always having io-wq execute the work item whenever
the poll readiness triggered. Any fast file type will have NOWAIT
support (eg it understands both O_NONBLOCK and IOCB_NOWAIT). If the
given file type does not, then simply resort to single shot execution.
Cc: stable@vger.kernel.org
Fixes: fc68fcda04910 ("io_uring/rw: add support for IORING_OP_READ_MULTISHOT")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'io_uring/alloc_cache.h')
0 files changed, 0 insertions, 0 deletions