cifs: add SMB2_close_init()/SMB2_close_free()

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.com>

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 7c0b303..78c7190 100644 (file)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2445,43 +2445,62 @@ SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
 }
 
 int
+SMB2_close_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,
+               u64 persistent_fid, u64 volatile_fid)
+{
+       struct smb2_close_req *req;
+       struct kvec *iov = rqst->rq_iov;
+       unsigned int total_len;
+       int rc;
+
+       rc = smb2_plain_req_init(SMB2_CLOSE, tcon, (void **) &req, &total_len);
+       if (rc)
+               return rc;
+
+       req->PersistentFileId = persistent_fid;
+       req->VolatileFileId = volatile_fid;
+       iov[0].iov_base = (char *)req;
+       iov[0].iov_len = total_len;
+
+       return 0;
+}
+
+void
+SMB2_close_free(struct smb_rqst *rqst)
+{
+       cifs_small_buf_release(rqst->rq_iov[0].iov_base); /* request */
+}
+
+int
 SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
                 u64 persistent_fid, u64 volatile_fid, int flags)
 {
        struct smb_rqst rqst;
-       struct smb2_close_req *req;
-       struct smb2_close_rsp *rsp;
+       struct smb2_close_rsp *rsp = NULL;
        struct cifs_ses *ses = tcon->ses;
        struct kvec iov[1];
        struct kvec rsp_iov;
        int resp_buftype;
        int rc = 0;
-       unsigned int total_len;
 
        cifs_dbg(FYI, "Close\n");
 
        if (!ses || !(ses->server))
                return -EIO;
 
-       rc = smb2_plain_req_init(SMB2_CLOSE, tcon, (void **) &req, &total_len);
-       if (rc)
-               return rc;
-
        if (smb3_encryption_required(tcon))
                flags |= CIFS_TRANSFORM_REQ;
 
-       req->PersistentFileId = persistent_fid;
-       req->VolatileFileId = volatile_fid;
-
-       iov[0].iov_base = (char *)req;
-       iov[0].iov_len = total_len;
-
        memset(&rqst, 0, sizeof(struct smb_rqst));
+       memset(&iov, 0, sizeof(iov));
        rqst.rq_iov = iov;
        rqst.rq_nvec = 1;
 
+       rc = SMB2_close_init(tcon, &rqst, persistent_fid, volatile_fid);
+       if (rc)
+               goto close_exit;
+
        rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);
-       cifs_small_buf_release(req);
        rsp = (struct smb2_close_rsp *)rsp_iov.iov_base;
 
        if (rc != 0) {
@@ -2494,6 +2513,7 @@ SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
        /* BB FIXME - decode close response, update inode for caching */
 
 close_exit:
+       SMB2_close_free(&rqst);
        free_rsp_buf(resp_buftype, rsp);
        return rc;
 }

diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 19aa483..fdd8c78 100644 (file)
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -141,6 +141,9 @@ extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
                      u64 persistent_file_id, u64 volatile_file_id);
 extern int SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
                            u64 persistent_fid, u64 volatile_fid, int flags);
+extern int SMB2_close_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,
+                     u64 persistent_file_id, u64 volatile_file_id);
+extern void SMB2_close_free(struct smb_rqst *rqst);
 extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon,
                      u64 persistent_file_id, u64 volatile_file_id);
 extern int SMB2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,