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io_uring/zcrx: don't adjust free cache space 

The cache should be empty when io_pp_zc_alloc_netmems() is called,
that's promised by page pool and further checked, so there is no need to
recalculate the available space in io_zcrx_ring_refill().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
pull/1354/merge
Pavel Begunkov 2025-09-16 15:28:00 +01:00 committed by Jens Axboe
parent c95257f336
commit 5a8b6e7c1d
1 changed files with 1 additions and 1 deletions
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2
io_uring/zcrx.c
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@ -759,7 +759,7 @@ static void io_zcrx_ring_refill(struct page_pool *pp,
guard(spinlock_bh)(&ifq->rq_lock);
entries = io_zcrx_rqring_entries(ifq);
entries = min_t(unsigned, entries, PP_ALLOC_CACHE_REFILL - pp->alloc.count);
entries = min_t(unsigned, entries, PP_ALLOC_CACHE_REFILL);
if (unlikely(!entries))
return;