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Commit 2e96467d authored by Ronnie Sahlberg's avatar Ronnie Sahlberg Committed by Steve French
Browse files

cifs: add pdu_size to the TCP_Server_Info structure 



and get rid of some get_rfc1002_length() in smb2

Signed-off-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
Reviewed-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
parent 5100d8a3

fs/cifs/cifsglob.h

+2 −0
Original line number Diff line number Diff line
@@ -665,6 +665,8 @@ struct TCP_Server_Info { 
	struct delayed_work	echo; /* echo ping workqueue job */

	char	*smallbuf;	/* pointer to current "small" buffer */

	char	*bigbuf;	/* pointer to current "big" buffer */

	/* Total size of this PDU. Only valid from cifs_demultiplex_thread */

	unsigned int pdu_size;

	unsigned int total_read; /* total amount of data read in this pass */

#ifdef CONFIG_CIFS_FSCACHE

	struct fscache_cookie   *fscache; /* client index cache cookie */

fs/cifs/cifssmb.c

+1 −1
Original line number Diff line number Diff line
@@ -1456,7 +1456,7 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid) 
	unsigned int data_offset, data_len;

	struct cifs_readdata *rdata = mid->callback_data;

	char *buf = server->smallbuf;

	unsigned int buflen = get_rfc1002_length(buf) +

	unsigned int buflen = server->pdu_size +

		server->vals->header_preamble_size;

	bool use_rdma_mr = false;

fs/cifs/connect.c

+2 −1
Original line number Diff line number Diff line
@@ -772,7 +772,7 @@ standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid) 
{

	int length;

	char *buf = server->smallbuf;

	unsigned int pdu_length = get_rfc1002_length(buf);

	unsigned int pdu_length = server->pdu_size;



	/* make sure this will fit in a large buffer */

	if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server) -
@@ -881,6 +881,7 @@ cifs_demultiplex_thread(void *p) 
		 * so we can now interpret the length field.

		 */

		pdu_length = get_rfc1002_length(buf);

		server->pdu_size = pdu_length;



		cifs_dbg(FYI, "RFC1002 header 0x%x\n", pdu_length);

		if (!is_smb_response(server, buf[0]))

fs/cifs/smb2ops.c

+4 −4
Original line number Diff line number Diff line
@@ -2550,7 +2550,7 @@ receive_encrypted_read(struct TCP_Server_Info *server, struct mid_q_entry **mid) 
	unsigned int npages;

	struct page **pages;

	unsigned int len;

	unsigned int buflen = get_rfc1002_length(buf) + server->vals->header_preamble_size;

	unsigned int buflen = server->pdu_size + server->vals->header_preamble_size;

	int rc;

	int i = 0;
@@ -2624,7 +2624,7 @@ receive_encrypted_standard(struct TCP_Server_Info *server, 
{

	int length;

	char *buf = server->smallbuf;

	unsigned int pdu_length = get_rfc1002_length(buf);

	unsigned int pdu_length = server->pdu_size;

	unsigned int buf_size;

	struct mid_q_entry *mid_entry;
@@ -2668,7 +2668,7 @@ static int 
smb3_receive_transform(struct TCP_Server_Info *server, struct mid_q_entry **mid)

{

	char *buf = server->smallbuf;

	unsigned int pdu_length = get_rfc1002_length(buf);

	unsigned int pdu_length = server->pdu_size;

	struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf;

	unsigned int orig_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
@@ -2699,7 +2699,7 @@ smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid) 
{

	char *buf = server->large_buf ? server->bigbuf : server->smallbuf;



	return handle_read_data(server, mid, buf, get_rfc1002_length(buf) +

	return handle_read_data(server, mid, buf, server->pdu_size +

				server->vals->header_preamble_size,

				NULL, 0, 0);

}