From: Long Li <longli@xxxxxxxxxxxxx>
On re-send, there might be a reconnect and all prevoius memory registrations
need to be invalidated and deregistered.
Signed-off-by: Long Li <longli@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
fs/cifs/file.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 4b95700c507c..3c4e01e56798 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2747,9 +2747,17 @@ cifs_resend_wdata(struct cifs_writedata *wdata, struct list_head *wdata_list,
if (!rc) {
if (wdata->cfile->invalidHandle)
rc = -EAGAIN;
- else
+ else {
+#ifdef CONFIG_CIFS_SMB_DIRECT
+ if (wdata->mr) {
+ wdata->mr->need_invalidate = true;
+ smbd_deregister_mr(wdata->mr);
+ wdata->mr = NULL;
+ }
+#endif
rc = server->ops->async_writev(wdata,
cifs_uncached_writedata_release);
+ }
}
/* If the write was successfully sent, we are done */
@@ -3472,7 +3480,14 @@ static int cifs_resend_rdata(struct cifs_readdata *rdata,
if (!rc) {
if (rdata->cfile->invalidHandle)
rc = -EAGAIN;
- else
+ else {
+#ifdef CONFIG_CIFS_SMB_DIRECT
+ if (rdata->mr) {
+ rdata->mr->need_invalidate = true;
+ smbd_deregister_mr(rdata->mr);
+ rdata->mr = NULL;
+ }
+#endif
rc = server->ops->async_readv(rdata);
}
--
2.17.1
