From 203817de269539c062724d97dfa5af3cdf77a3ec Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Mon, 7 Jul 2025 09:52:33 +0100 Subject: [PATCH] io_uring/zcrx: fix pp destruction warnings With multiple page pools and in some other cases we can have allocated niovs on page pool destruction. Remove a misplaced warning checking that all niovs are returned to zcrx on io_pp_zc_destroy(). It was reported before but apparently got lost. Reported-by: Pedro Tammela Fixes: 34a3e60821ab9 ("io_uring/zcrx: implement zerocopy receive pp memory provider") Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/b9e6d919d2964bc48ddbf8eb52fc9f5d118e9bc1.1751878185.git.asml.silence@gmail.com Signed-off-by: Jens Axboe --- io_uring/zcrx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c index ade4da9c4e313..67c518d22e0c7 100644 --- a/io_uring/zcrx.c +++ b/io_uring/zcrx.c @@ -862,10 +862,7 @@ static int io_pp_zc_init(struct page_pool *pp) static void io_pp_zc_destroy(struct page_pool *pp) { struct io_zcrx_ifq *ifq = io_pp_to_ifq(pp); - struct io_zcrx_area *area = ifq->area; - if (WARN_ON_ONCE(area->free_count != area->nia.num_niovs)) - return; percpu_ref_put(&ifq->ctx->refs); } -- 2.47.2