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Commit 5293c79c authored by Steve French's avatar Steve French Committed by Greg Kroah-Hartman
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SMB3: retry on STATUS_INSUFFICIENT_RESOURCES instead of failing write 



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: default avatarSteve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent db7f1076

fs/cifs/smb2maperror.c

+1 −1
Original line number Diff line number Diff line
@@ -457,7 +457,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = { 
	{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"},