From 291b2821e072e16b062c5a0e83f7642143c4399a Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Wed, 30 Sep 2020 22:57:01 +0300 Subject: 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 Signed-off-by: Jens Axboe --- fs/io_uring.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index fcb4e95cb88d..cdd59467576d 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -1650,10 +1650,8 @@ static struct io_kiocb *io_get_fallback_req(struct io_ring_ctx *ctx) static struct io_kiocb *io_alloc_req(struct io_ring_ctx *ctx, struct io_submit_state *state) { - gfp_t gfp = GFP_KERNEL | __GFP_NOWARN; - struct io_kiocb *req; - if (!state->free_reqs) { + gfp_t gfp = GFP_KERNEL | __GFP_NOWARN; size_t sz; int ret; @@ -1670,14 +1668,11 @@ static struct io_kiocb *io_alloc_req(struct io_ring_ctx *ctx, goto fallback; ret = 1; } - state->free_reqs = ret - 1; - req = state->reqs[ret - 1]; - } else { - state->free_reqs--; - req = state->reqs[state->free_reqs]; + state->free_reqs = ret; } - return req; + state->free_reqs--; + return state->reqs[state->free_reqs]; fallback: return io_get_fallback_req(ctx); } -- cgit v1.2.3