cifs: set replay flag for retries of write command

Similar to the rest of the commands, this is a change
to add replay flags on retry. This one does not add a
back-off, considering that we may want to flush a write
ASAP to the server. Considering that this will be a
flush of cached pages, the retrans value is also not
honoured.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index ceaf985..16befff 100644 (file)
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -1506,6 +1506,7 @@ struct cifs_writedata {
        struct smbd_mr                  *mr;
 #endif
        struct cifs_credits             credits;
+       bool                            replay;
 };
 
 /*

diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 70f9e3f..6f07997 100644 (file)
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -3300,6 +3300,7 @@ cifs_resend_wdata(struct cifs_writedata *wdata, struct list_head *wdata_list,
                        if (wdata->cfile->invalidHandle)
                                rc = -EAGAIN;
                        else {
+                               wdata->replay = true;
 #ifdef CONFIG_CIFS_SMB_DIRECT
                                if (wdata->mr) {
                                        wdata->mr->need_invalidate = true;

diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index f92d770..4f2cc83 100644 (file)
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -4771,7 +4771,7 @@ smb2_async_writev(struct cifs_writedata *wdata,
        struct cifs_io_parms *io_parms = NULL;
        int credit_request;
 
-       if (!wdata->server)
+       if (!wdata->server || wdata->replay)
                server = wdata->server = cifs_pick_channel(tcon->ses);
 
        /*
@@ -4856,6 +4856,8 @@ smb2_async_writev(struct cifs_writedata *wdata,
        rqst.rq_nvec = 1;
        rqst.rq_iter = wdata->iter;
        rqst.rq_iter_size = iov_iter_count(&rqst.rq_iter);
+       if (wdata->replay)
+               smb2_set_replay(server, &rqst);
 #ifdef CONFIG_CIFS_SMB_DIRECT
        if (wdata->mr)
                iov[0].iov_len += sizeof(struct smbd_buffer_descriptor_v1);