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Commit 7a5cfb1965854132f2f382eade8c6ce2eeb6f692

Authored by Pavel Shilovsky
Committed by Steve French
1 parent 1d8c4c0009
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

CIFS: Add SMB2 support for flush 

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>

Showing 4 changed files with 63 additions and 0 deletions Side-by-side Diff

... ... @@ -329,6 +329,13 @@
329 329 return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
330 330 }
331 331  
  332 +static int
  333 +smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
  334 + struct cifs_fid *fid)
  335 +{
  336 + return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid);
  337 +}
  338 +
332 339 struct smb_version_operations smb21_operations = {
333 340 .setup_request = smb2_setup_request,
334 341 .setup_async_request = smb2_setup_async_request,
... ... @@ -363,6 +370,7 @@
363 370 .open = smb2_open_file,
364 371 .set_fid = smb2_set_fid,
365 372 .close = smb2_close_file,
  373 + .flush = smb2_flush_file,
366 374 };
367 375  
368 376 struct smb_version_values smb21_values = {
... ... @@ -1152,4 +1152,42 @@
1152 1152 cifs_small_buf_release(req);
1153 1153 return rc;
1154 1154 }
  1155 +
  1156 +int
  1157 +SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
  1158 + u64 volatile_fid)
  1159 +{
  1160 + struct smb2_flush_req *req;
  1161 + struct TCP_Server_Info *server;
  1162 + struct cifs_ses *ses = tcon->ses;
  1163 + struct kvec iov[1];
  1164 + int resp_buftype;
  1165 + int rc = 0;
  1166 +
  1167 + cFYI(1, "Flush");
  1168 +
  1169 + if (ses && (ses->server))
  1170 + server = ses->server;
  1171 + else
  1172 + return -EIO;
  1173 +
  1174 + rc = small_smb2_init(SMB2_FLUSH, tcon, (void **) &req);
  1175 + if (rc)
  1176 + return rc;
  1177 +
  1178 + req->PersistentFileId = persistent_fid;
  1179 + req->VolatileFileId = volatile_fid;
  1180 +
  1181 + iov[0].iov_base = (char *)req;
  1182 + /* 4 for rfc1002 length field */
  1183 + iov[0].iov_len = get_rfc1002_length(req) + 4;
  1184 +
  1185 + rc = SendReceive2(xid, ses, iov, 1, &resp_buftype, 0);
  1186 +
  1187 + if ((rc != 0) && tcon)
  1188 + cifs_stats_fail_inc(tcon, SMB2_FLUSH_HE);
  1189 +
  1190 + free_rsp_buf(resp_buftype, iov[0].iov_base);
  1191 + return rc;
  1192 +}
... ... @@ -453,6 +453,21 @@
453 453 __le32 Attributes;
454 454 } __packed;
455 455  
  456 +struct smb2_flush_req {
  457 + struct smb2_hdr hdr;
  458 + __le16 StructureSize; /* Must be 24 */
  459 + __le16 Reserved1;
  460 + __le32 Reserved2;
  461 + __u64 PersistentFileId; /* opaque endianness */
  462 + __u64 VolatileFileId; /* opaque endianness */
  463 +} __packed;
  464 +
  465 +struct smb2_flush_rsp {
  466 + struct smb2_hdr hdr;
  467 + __le16 StructureSize;
  468 + __le16 Reserved;
  469 +} __packed;
  470 +
456 471 struct smb2_echo_req {
457 472 struct smb2_hdr hdr;
458 473 __le16 StructureSize; /* Must be 4 */
... ... @@ -89,6 +89,8 @@
89 89 struct smb2_file_all_info *buf);
90 90 extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
91 91 u64 persistent_file_id, u64 volatile_file_id);
  92 +extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon,
  93 + u64 persistent_file_id, u64 volatile_file_id);
92 94 extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon,
93 95 u64 persistent_file_id, u64 volatile_file_id,
94 96 struct smb2_file_all_info *data);