diff options
Diffstat (limited to 'fs/cifs/cifssmb.c')
| -rw-r--r-- | fs/cifs/cifssmb.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 35dc5bf01ee2..59c09a596c0a 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -43,6 +43,7 @@ #include "cifs_unicode.h" #include "cifs_debug.h" #include "fscache.h" +#include "smbdirect.h" #ifdef CONFIG_CIFS_POSIX static struct { @@ -1453,7 +1454,9 @@ 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", __func__, mid->mid, rdata->offset, rdata->bytes); @@ -1502,7 +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 @@ -1542,8 +1546,11 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid) rdata->iov[0].iov_base, server->total_read); /* how much data is in the response? */ - data_len = server->ops->read_data_length(buf); - if (data_offset + data_len > buflen) { +#ifdef CONFIG_CIFS_SMB_DIRECT + use_rdma_mr = rdata->mr; +#endif + data_len = server->ops->read_data_length(buf, use_rdma_mr); + if (!use_rdma_mr && (data_offset + data_len > buflen)) { /* data_len is corrupt -- discard frame */ rdata->result = -EIO; return cifs_readv_discard(server, mid); @@ -1923,6 +1930,12 @@ cifs_writedata_release(struct kref *refcount) { struct cifs_writedata *wdata = container_of(refcount, struct cifs_writedata, refcount); +#ifdef CONFIG_CIFS_SMB_DIRECT + if (wdata->mr) { + smbd_deregister_mr(wdata->mr); + wdata->mr = NULL; + } +#endif if (wdata->cfile) cifsFileInfo_put(wdata->cfile); @@ -4822,10 +4835,11 @@ CIFSGetDFSRefer(const unsigned int xid, struct cifs_ses *ses, *target_nodes = NULL; cifs_dbg(FYI, "In GetDFSRefer the path %s\n", search_name); - if (ses == NULL) + if (ses == NULL || ses->tcon_ipc == NULL) return -ENODEV; + getDFSRetry: - rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, + rc = smb_init(SMB_COM_TRANSACTION2, 15, ses->tcon_ipc, (void **) &pSMB, (void **) &pSMBr); if (rc) return rc; @@ -4833,7 +4847,7 @@ getDFSRetry: /* server pointer checked in called function, but should never be null here anyway */ pSMB->hdr.Mid = get_next_mid(ses->server); - pSMB->hdr.Tid = ses->ipc_tid; + pSMB->hdr.Tid = ses->tcon_ipc->tid; pSMB->hdr.Uid = ses->Suid; if (ses->capabilities & CAP_STATUS32) pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; @@ -6331,9 +6345,7 @@ SetEARetry: pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_EA); - parm_data = - (struct fealist *) (((char *) &pSMB->hdr.Protocol) + - offset); + parm_data = (void *)pSMB + offsetof(struct smb_hdr, Protocol) + offset; pSMB->ParameterOffset = cpu_to_le16(param_offset); pSMB->DataOffset = cpu_to_le16(offset); pSMB->SetupCount = 1; |