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[(116.128.244.171)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 674610884; Mon, 23 Mar 2026 17:44:17 +0800 From: Li Wang To: Stefan Hajnoczi , German Maglione , Vivek Goyal , Miklos Szeredi Cc: =?UTF-8?q?Eugenio=20P=C3=A9rez?= , virtualization@lists.linux.dev, linux-fsdevel@vger.kernel.org, Li Wang Subject: [PATCH 2/3] virtiofs: Allow ENOMEM requests to wait and retry later in send_forget_request() Date: Mon, 23 Mar 2026 17:43:16 +0800 Message-Id: <20260323094317.46302-2-liwang@kylinos.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260323094317.46302-1-liwang@kylinos.cn> References: <20260323094317.46302-1-liwang@kylinos.cn> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Allow ENOMEM requests to wait and retry later, rather than dropping them. Signed-off-by: Li Wang --- fs/fuse/virtio_fs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c index dec2c5a30e4e..bf043e698e0d 100644 --- a/fs/fuse/virtio_fs.c +++ b/fs/fuse/virtio_fs.c @@ -611,7 +611,7 @@ static void virtio_fs_request_dispatch_work(struct work_struct *work) } /* - * Returns 1 if queue is full and sender should wait a bit before sending + * Returns 1 if queue or memory is full and sender should wait a bit before sending * next request, 0 otherwise. */ static int send_forget_request(struct virtio_fs_vq *fsvq, @@ -638,13 +638,13 @@ static int send_forget_request(struct virtio_fs_vq *fsvq, ret = virtqueue_add_outbuf(vq, &sg, 1, forget, GFP_ATOMIC); if (ret < 0) { - if (ret == -ENOSPC) { + if (ret == -ENOSPC || ret == -ENOMEM) { pr_debug("virtio-fs: Could not queue FORGET: err=%d. Will try later\n", ret); list_add_tail(&forget->list, &fsvq->queued_reqs); if (!in_flight) inc_in_flight_req(fsvq); - /* Queue is full */ + /* Queue or memory is full */ ret = 1; } else { pr_debug("virtio-fs: Could not queue FORGET: err=%d. Dropping it.\n", -- 2.34.1