From: Maurizio Lombardi mlombard@redhat.com
[ Upstream commit a5053c92b3db71c3f7f9f13934ca620632828d06 ]
Release the page frag cache when tearing down the io queues
Signed-off-by: Maurizio Lombardi mlombard@redhat.com Reviewed-by: Sagi Grimberg sagi@grimberg.me Reviewed-by: John Meneghini jmeneghi@redhat.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/host/tcp.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index c8efa98192a4f..aaad985175d60 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -1212,6 +1212,7 @@ static int nvme_tcp_alloc_async_req(struct nvme_tcp_ctrl *ctrl)
static void nvme_tcp_free_queue(struct nvme_ctrl *nctrl, int qid) { + struct page *page; struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl); struct nvme_tcp_queue *queue = &ctrl->queues[qid];
@@ -1221,6 +1222,11 @@ static void nvme_tcp_free_queue(struct nvme_ctrl *nctrl, int qid) if (queue->hdr_digest || queue->data_digest) nvme_tcp_free_crypto(queue);
+ if (queue->pf_cache.va) { + page = virt_to_head_page(queue->pf_cache.va); + __page_frag_cache_drain(page, queue->pf_cache.pagecnt_bias); + queue->pf_cache.va = NULL; + } sock_release(queue->sock); kfree(queue->pdu); mutex_destroy(&queue->queue_lock);