diff options
| author | Ronnie Sahlberg <lsahlber@redhat.com> | 2018-03-31 02:45:31 +0200 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2018-04-02 20:09:44 +0200 |
| commit | 93012bf984163f6616d1ab606a7cd86095c052c6 (patch) | |
| tree | 5f72bd3f1e727d2e1d85a33be1a95cc5ab350971 /fs/cifs/cifssmb.c | |
| parent | cifs: smbd: disconnect transport on RDMA errors (diff) | |
| download | linux-93012bf984163f6616d1ab606a7cd86095c052c6.tar.xz linux-93012bf984163f6616d1ab606a7cd86095c052c6.zip | |
cifs: add server->vals->header_preamble_size
This variable is set to 4 for all protocol versions and replaces
the hardcoded constant 4 throughought the code.
This will later be updated to reflect whether a response packet
has a 4 byte length preamble or not once we start removing this
field from the SMB2+ dialects.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs/cifssmb.c')
| -rw-r--r-- | fs/cifs/cifssmb.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 9ceebf30eb22..59c09a596c0a 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1454,7 +1454,8 @@ 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) + 4; + unsigned int buflen = get_rfc1002_length(buf) + + server->vals->header_preamble_size; bool use_rdma_mr = false; cifs_dbg(FYI, "%s: mid=%llu offset=%llu bytes=%u\n", @@ -1504,7 +1505,8 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid) return cifs_readv_discard(server, mid); } - data_offset = server->ops->read_data_offset(buf) + 4; + data_offset = server->ops->read_data_offset(buf) + + server->vals->header_preamble_size; if (data_offset < server->total_read) { /* * win2k8 sometimes sends an offset of 0 when the read |