X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=fs%2Fcifs%2Fsmb2file.c;h=f9e766f464beec408b628146c4e0d4e04010e0f2;hb=592fafe644bf3a48b9e00e182a67d301493634fc;hp=2ab297dae5a7b2b4e544e3f35abc5f09b9fa7b1d;hpb=aefa441b150279dd8d25658e018898a3fe9a6769;p=mirror_ubuntu-artful-kernel.git

diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index 2ab297dae5a7..f9e766f464be 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -43,6 +43,7 @@ smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
 	struct smb2_file_all_info *smb2_data = NULL;
 	__u8 smb2_oplock[17];
 	struct cifs_fid *fid = oparms->fid;
+	struct network_resiliency_req nr_ioctl_req;
 
 	smb2_path = cifs_convert_path_to_utf16(oparms->path, oparms->cifs_sb);
 	if (smb2_path == NULL) {
@@ -67,6 +68,24 @@ smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
 	if (rc)
 		goto out;
 
+
+	 if (oparms->tcon->use_resilient) {
+		nr_ioctl_req.Timeout = 0; /* use server default (120 seconds) */
+		nr_ioctl_req.Reserved = 0;
+		rc = SMB2_ioctl(xid, oparms->tcon, fid->persistent_fid,
+			fid->volatile_fid, FSCTL_LMR_REQUEST_RESILIENCY, true,
+			(char *)&nr_ioctl_req, sizeof(nr_ioctl_req),
+			NULL, NULL /* no return info */);
+		if (rc == -EOPNOTSUPP) {
+			cifs_dbg(VFS,
+			     "resiliency not supported by server, disabling\n");
+			oparms->tcon->use_resilient = false;
+		} else if (rc)
+			cifs_dbg(FYI, "error %d setting resiliency\n", rc);
+
+		rc = 0;
+	}
+
 	if (buf) {
 		/* open response does not have IndexNumber field - get it */
 		rc = SMB2_get_srv_num(xid, oparms->tcon, fid->persistent_fid,