io_uring: comment on kfree(iovec) checks

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kfree() handles NULL pointers well, but io_{read,write}() checks it
because of performance reasons. Leave a comment there for those who are
tempted to patch it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2020-08-20 11:34:10 +03:00 • committed by Jens Axboe

parent bb175342aa

commit f261c16861

1 changed files with 2 additions and 0 deletions

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fs/io_uring.c

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