io_uring: add buffer unmap helper

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Add a helper for unmapping registered buffers, better than double
indexing and will be reused in the future.

Suggested-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/66cbc6ea863be865bac7b7080ed6a3d5c542b71f.1618101759.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-04-11 01:46:35 +01:00 • committed by Jens Axboe

parent 3e9424989b

commit 7f61a1e9ef

1 changed files with 15 additions and 13 deletions

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fs/io_uring.c

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