From 3a9ea929d89cacd14bbdf73a031d1eaf23abecdc Mon Sep 17 00:00:00 2001 From: Marco Felsch Date: Fri, 26 Apr 2019 14:58:33 +0200 Subject: fs: nfs: ensure rpc_req message is send Currently we send a rpc message without checking if the send was succesful and poll for a answer from the server. If the server didn't answer within the NFS_TIMEOUT window we send the package again. In case the package send wasn't successful we always run in that timeout. This gets even worse if the package send fails more than one time. Check if the package send was successful and resend the package if it wasn't to fix this behaviour. Signed-off-by: Marco Felsch Signed-off-by: Sascha Hauer --- fs/nfs.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/fs/nfs.c b/fs/nfs.c index 574fb85fb6..d606ccd1e9 100644 --- a/fs/nfs.c +++ b/fs/nfs.c @@ -436,9 +436,20 @@ static struct packet *rpc_req(struct nfs_priv *npriv, int rpc_prog, npriv->con->udp->uh_dport = hton16(dport); + nfs_timer_start = get_time_ns(); + again: ret = net_udp_send(npriv->con, sizeof(pkt) + datalen * sizeof(uint32_t)); + if (ret) { + if (is_timeout(nfs_timer_start, NFS_TIMEOUT)) { + tries++; + if (tries == NFS_MAX_RESEND) + return ERR_PTR(-ETIMEDOUT); + } + + goto again; + } nfs_timer_start = get_time_ns(); -- cgit v1.2.3