From: Steve French <stfre...@microsoft.com>

commit 8d526d62db907e786fd88948c75d1833d82bd80e upstream.

Some servers such as Windows 10 will return STATUS_INSUFFICIENT_RESOURCES
as the number of simultaneous SMB3 requests grows (even though the client
has sufficient credits).  Return EAGAIN on STATUS_INSUFFICIENT_RESOURCES
so that we can retry writes which fail with this status code.

This (for example) fixes large file copies to Windows 10 on fast networks.

Signed-off-by: Steve French <stfre...@microsoft.com>
CC: Stable <sta...@vger.kernel.org>
Reviewed-by: Ronnie Sahlberg <lsahl...@redhat.com>
Reviewed-by: Pavel Shilovsky <pshi...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/cifs/smb2maperror.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -455,7 +455,7 @@ static const struct status_to_posix_erro
        {STATUS_FILE_INVALID, -EIO, "STATUS_FILE_INVALID"},
        {STATUS_ALLOTTED_SPACE_EXCEEDED, -EIO,
        "STATUS_ALLOTTED_SPACE_EXCEEDED"},
-       {STATUS_INSUFFICIENT_RESOURCES, -EREMOTEIO,
+       {STATUS_INSUFFICIENT_RESOURCES, -EAGAIN,
                                "STATUS_INSUFFICIENT_RESOURCES"},
        {STATUS_DFS_EXIT_PATH_FOUND, -EIO, "STATUS_DFS_EXIT_PATH_FOUND"},
        {STATUS_DEVICE_DATA_ERROR, -EIO, "STATUS_DEVICE_DATA_ERROR"},


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