4.20-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx>
commit 082aaa8700415f6471ec9c5ef0c8307ca214989a upstream.
When doing reads beyound the end of a file the server returns
error STATUS_END_OF_FILE error which is mapped to -ENODATA.
Currently we report it as a failure which confuses read stats.
Change it to not consider -ENODATA as failure for stat purposes.
Signed-off-by: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
CC: Stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/smb2pdu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3139,7 +3139,7 @@ smb2_readv_callback(struct mid_q_entry *
rdata->mr = NULL;
}
#endif
- if (rdata->result) {
+ if (rdata->result && rdata->result != -ENODATA) {
cifs_stats_fail_inc(tcon, SMB2_READ_HE);
trace_smb3_read_err(0 /* xid */,
rdata->cfile->fid.persistent_fid,
