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io_uring: simplify io_alloc_req()
Extract common code from if/else branches. That is cleaner and optimised even better. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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parent
145cc8c665
commit
291b2821e0
1 changed files with 4 additions and 9 deletions
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@ -1650,10 +1650,8 @@ static struct io_kiocb *io_get_fallback_req(struct io_ring_ctx *ctx)
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static struct io_kiocb *io_alloc_req(struct io_ring_ctx *ctx,
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static struct io_kiocb *io_alloc_req(struct io_ring_ctx *ctx,
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struct io_submit_state *state)
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struct io_submit_state *state)
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{
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{
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gfp_t gfp = GFP_KERNEL | __GFP_NOWARN;
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struct io_kiocb *req;
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if (!state->free_reqs) {
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if (!state->free_reqs) {
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gfp_t gfp = GFP_KERNEL | __GFP_NOWARN;
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size_t sz;
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size_t sz;
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int ret;
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int ret;
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@ -1670,14 +1668,11 @@ static struct io_kiocb *io_alloc_req(struct io_ring_ctx *ctx,
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goto fallback;
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goto fallback;
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ret = 1;
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ret = 1;
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}
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}
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state->free_reqs = ret - 1;
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state->free_reqs = ret;
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req = state->reqs[ret - 1];
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} else {
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state->free_reqs--;
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req = state->reqs[state->free_reqs];
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}
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}
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return req;
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state->free_reqs--;
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return state->reqs[state->free_reqs];
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fallback:
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fallback:
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return io_get_fallback_req(ctx);
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return io_get_fallback_req(ctx);
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}
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}
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