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authorLong Li <longli@microsoft.com>2019-04-06 00:36:34 +0300
committerSteve French <stfrench@microsoft.com>2019-05-08 07:24:55 +0300
commitb7972092199f6d4eb10cc44095bbe3931116fc4b (patch)
tree900c90e37d39647d2c247f6c480c386f8c266b59 /fs/cifs
parent62fdf6707ebd46ae97e3cb7a7d246b05c3c619f1 (diff)
downloadlinux-b7972092199f6d4eb10cc44095bbe3931116fc4b.tar.xz
cifs: smbd: Retry on memory registration failure
Memory registration failure doesn't mean this I/O has failed, it means the transport is hitting I/O error or needs reconnect. This error is not from the server. Indicate this error to upper layer, and let upper layer decide how to reconnect and proceed with this I/O. Signed-off-by: Long Li <longli@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/smb2pdu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index a37774a55f3a..36cc34318429 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3223,7 +3223,7 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
rdata->nr_pages, rdata->page_offset,
rdata->tailsz, true, need_invalidate);
if (!rdata->mr)
- return -ENOBUFS;
+ return -EAGAIN;
req->Channel = SMB2_CHANNEL_RDMA_V1_INVALIDATE;
if (need_invalidate)
@@ -3628,7 +3628,7 @@ smb2_async_writev(struct cifs_writedata *wdata,
wdata->nr_pages, wdata->page_offset,
wdata->tailsz, false, need_invalidate);
if (!wdata->mr) {
- rc = -ENOBUFS;
+ rc = -EAGAIN;
goto async_writev_out;
}
req->Length = 0;