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io_uring/kbuf: don't compute size twice on prep 

The size in prep is calculated by io_provide_buffers_prep(), so remove
the recomputation a few lines after.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7c97206561b74fce245cb22449c6082d2e066844.1747150490.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
pull/1250/head
Pavel Begunkov 2025-05-13 18:26:49 +01:00 committed by Jens Axboe
parent 4e9fda29d6
commit 52a05d0cf8
1 changed files with 0 additions and 2 deletions
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2
io_uring/kbuf.c
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@ -509,8 +509,6 @@ int io_provide_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe
return -EOVERFLOW;
if (check_add_overflow((unsigned long)p->addr, size, &tmp_check))
return -EOVERFLOW;
size = (unsigned long)p->len * p->nbufs;
if (!access_ok(u64_to_user_ptr(p->addr), size))
return -EFAULT;