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-rw-r--r--fs/cifs/cifsglob.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 29b5a9bd3128..678e638c1e69 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -230,8 +230,14 @@ struct smb_version_operations {
__u64 (*get_next_mid)(struct TCP_Server_Info *);
/* data offset from read response message */
unsigned int (*read_data_offset)(char *);
- /* data length from read response message */
- unsigned int (*read_data_length)(char *);
+ /*
+ * Data length from read response message
+ * When in_remaining is true, the returned data length is in
+ * message field DataRemaining for out-of-band data read (e.g through
+ * Memory Registration RDMA write in SMBD).
+ * Otherwise, the returned data length is in message field DataLength.
+ */
+ unsigned int (*read_data_length)(char *, bool in_remaining);
/* map smb to linux error */
int (*map_error)(char *, bool);
/* find mid corresponding to the response message */
@@ -1152,6 +1158,9 @@ struct cifs_readdata {
struct cifs_readdata *rdata,
struct iov_iter *iter);
struct kvec iov[2];
+#ifdef CONFIG_CIFS_SMB_DIRECT
+ struct smbd_mr *mr;
+#endif
unsigned int pagesz;
unsigned int tailsz;
unsigned int credits;