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eio_linux: release uring if Linux is too old #476

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merged 1 commit into from
Mar 28, 2023
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eio_linux: release uring if Linux is too old #476

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5 changes: 3 additions & 2 deletions lib_eio_linux/sched.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -509,9 +509,10 @@ let with_sched ?(fallback=no_fallback) config fn =
| exception Unix.Unix_error(Unix.ENOSYS, _, _) -> fallback (`Msg "io_uring is not available on this system")
| uring ->
let probe = Uring.get_probe uring in
if not (Uring.op_supported probe Uring.Op.shutdown) then
if not (Uring.op_supported probe Uring.Op.shutdown) then (
Uring.exit uring;
fallback (`Msg "Linux >= 5.11 is required for io_uring support")
else (
) else (
match
let mem =
let fixed_buf_len = block_size * n_blocks in
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