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io_uring: add support for ftruncate

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Adds support for doing truncate through io_uring, eliminating
the need for applications to roll their own thread pool or offload
mechanism to be able to do non-blocking truncates.

Signed-off-by: Tony Solomonik <tony.solomonik@gmail.com>
Link: https://lore.kernel.org/r/20240202121724.17461-3-tony.solomonik@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Tony Solomonik
2024-02-02 14:17:24 +02:00
committed by Jens Axboe
parent 5f0d594c60
commit b4bb1900c1
5 changed files with 64 additions and 1 deletions
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1
include/uapi/linux/io_uring.h
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@@ -255,6 +255,7 @@ enum io_uring_op {
IORING_OP_FUTEX_WAKE,
IORING_OP_FUTEX_WAITV,
IORING_OP_FIXED_FD_INSTALL,
IORING_OP_FTRUNCATE,
/* this goes last, obviously */
IORING_OP_LAST,