ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/fs/cifs/smb2inode.c b/marvell/linux/fs/cifs/smb2inode.c
new file mode 100644
index 0000000..c9abda9
--- /dev/null
+++ b/marvell/linux/fs/cifs/smb2inode.c
@@ -0,0 +1,629 @@
+/*
+ * fs/cifs/smb2inode.c
+ *
+ * Copyright (C) International Business Machines Corp., 2002, 2011
+ * Etersoft, 2012
+ * Author(s): Pavel Shilovsky (pshilovsky@samba.org),
+ * Steve French (sfrench@us.ibm.com)
+ *
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <asm/div64.h>
+#include "cifsfs.h"
+#include "cifspdu.h"
+#include "cifsglob.h"
+#include "cifsproto.h"
+#include "cifs_debug.h"
+#include "cifs_fs_sb.h"
+#include "cifs_unicode.h"
+#include "fscache.h"
+#include "smb2glob.h"
+#include "smb2pdu.h"
+#include "smb2proto.h"
+
+static void
+free_set_inf_compound(struct smb_rqst *rqst)
+{
+ if (rqst[1].rq_iov)
+ SMB2_set_info_free(&rqst[1]);
+ if (rqst[2].rq_iov)
+ SMB2_close_free(&rqst[2]);
+}
+
+
+static int
+smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, const char *full_path,
+ __u32 desired_access, __u32 create_disposition,
+ __u32 create_options, umode_t mode, void *ptr, int command,
+ struct cifsFileInfo *cfile)
+{
+ int rc;
+ __le16 *utf16_path = NULL;
+ __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
+ struct cifs_open_parms oparms;
+ struct cifs_fid fid;
+ struct cifs_ses *ses = tcon->ses;
+ int num_rqst = 0;
+ struct smb_rqst rqst[3];
+ int resp_buftype[3];
+ struct kvec rsp_iov[3];
+ struct kvec open_iov[SMB2_CREATE_IOV_SIZE];
+ struct kvec qi_iov[1];
+ struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE];
+ struct kvec close_iov[1];
+ struct smb2_query_info_rsp *qi_rsp = NULL;
+ int flags = 0;
+ __u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0};
+ unsigned int size[2];
+ void *data[2];
+ struct smb2_file_rename_info rename_info;
+ struct smb2_file_link_info link_info;
+ int len;
+
+ if (smb3_encryption_required(tcon))
+ flags |= CIFS_TRANSFORM_REQ;
+
+ memset(rqst, 0, sizeof(rqst));
+ resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
+ memset(rsp_iov, 0, sizeof(rsp_iov));
+
+ /* We already have a handle so we can skip the open */
+ if (cfile)
+ goto after_open;
+
+ /* Open */
+ utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
+ if (!utf16_path) {
+ rc = -ENOMEM;
+ goto finished;
+ }
+
+ oparms.tcon = tcon;
+ oparms.desired_access = desired_access;
+ oparms.disposition = create_disposition;
+ oparms.create_options = cifs_create_options(cifs_sb, create_options);
+ oparms.fid = &fid;
+ oparms.reconnect = false;
+ oparms.mode = mode;
+
+ memset(&open_iov, 0, sizeof(open_iov));
+ rqst[num_rqst].rq_iov = open_iov;
+ rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE;
+ rc = SMB2_open_init(tcon, &rqst[num_rqst], &oplock, &oparms,
+ utf16_path);
+ kfree(utf16_path);
+ if (rc)
+ goto finished;
+
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ after_open:
+ num_rqst++;
+ rc = 0;
+
+ /* Operation */
+ switch (command) {
+ case SMB2_OP_QUERY_INFO:
+ memset(&qi_iov, 0, sizeof(qi_iov));
+ rqst[num_rqst].rq_iov = qi_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+ if (cfile)
+ rc = SMB2_query_info_init(tcon, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FILE_ALL_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb2_file_all_info) +
+ PATH_MAX * 2, 0, NULL);
+ else {
+ rc = SMB2_query_info_init(tcon, &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ FILE_ALL_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb2_file_all_info) +
+ PATH_MAX * 2, 0, NULL);
+ if (!rc) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ }
+ }
+
+ if (rc)
+ goto finished;
+ num_rqst++;
+ trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid,
+ full_path);
+ break;
+ case SMB2_OP_DELETE:
+ trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_MKDIR:
+ /*
+ * Directories are created through parameters in the
+ * SMB2_open() call.
+ */
+ trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_RMDIR:
+ memset(&si_iov, 0, sizeof(si_iov));
+ rqst[num_rqst].rq_iov = si_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+ size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
+ data[0] = &delete_pending[0];
+
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_DISPOSITION_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (rc)
+ goto finished;
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst++]);
+ trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_EOF:
+ memset(&si_iov, 0, sizeof(si_iov));
+ rqst[num_rqst].rq_iov = si_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+ size[0] = 8; /* sizeof __le64 */
+ data[0] = ptr;
+
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_END_OF_FILE_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (rc)
+ goto finished;
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst++]);
+ trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_INFO:
+ memset(&si_iov, 0, sizeof(si_iov));
+ rqst[num_rqst].rq_iov = si_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+
+ size[0] = sizeof(FILE_BASIC_INFO);
+ data[0] = ptr;
+
+ if (cfile)
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ else {
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (!rc) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ }
+ }
+
+ if (rc)
+ goto finished;
+ num_rqst++;
+ trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid,
+ full_path);
+ break;
+ case SMB2_OP_RENAME:
+ memset(&si_iov, 0, sizeof(si_iov));
+ rqst[num_rqst].rq_iov = si_iov;
+ rqst[num_rqst].rq_nvec = 2;
+
+ len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
+
+ rename_info.ReplaceIfExists = 1;
+ rename_info.RootDirectory = 0;
+ rename_info.FileNameLength = cpu_to_le32(len);
+
+ size[0] = sizeof(struct smb2_file_rename_info);
+ data[0] = &rename_info;
+
+ size[1] = len + 2 /* null */;
+ data[1] = (__le16 *)ptr;
+
+ if (cfile)
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ current->tgid, FILE_RENAME_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ else {
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ current->tgid, FILE_RENAME_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (!rc) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ }
+ }
+ if (rc)
+ goto finished;
+ num_rqst++;
+ trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_HARDLINK:
+ memset(&si_iov, 0, sizeof(si_iov));
+ rqst[num_rqst].rq_iov = si_iov;
+ rqst[num_rqst].rq_nvec = 2;
+
+ len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
+
+ link_info.ReplaceIfExists = 0;
+ link_info.RootDirectory = 0;
+ link_info.FileNameLength = cpu_to_le32(len);
+
+ size[0] = sizeof(struct smb2_file_link_info);
+ data[0] = &link_info;
+
+ size[1] = len + 2 /* null */;
+ data[1] = (__le16 *)ptr;
+
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_LINK_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (rc)
+ goto finished;
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst++]);
+ trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ default:
+ cifs_dbg(VFS, "Invalid command\n");
+ rc = -EINVAL;
+ }
+ if (rc)
+ goto finished;
+
+ /* We already have a handle so we can skip the close */
+ if (cfile)
+ goto after_close;
+ /* Close */
+ memset(&close_iov, 0, sizeof(close_iov));
+ rqst[num_rqst].rq_iov = close_iov;
+ rqst[num_rqst].rq_nvec = 1;
+ rc = SMB2_close_init(tcon, &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID);
+ smb2_set_related(&rqst[num_rqst]);
+ if (rc)
+ goto finished;
+ after_close:
+ num_rqst++;
+
+ if (cfile) {
+ cifsFileInfo_put(cfile);
+ cfile = NULL;
+ rc = compound_send_recv(xid, ses, flags, num_rqst - 2,
+ &rqst[1], &resp_buftype[1],
+ &rsp_iov[1]);
+ } else
+ rc = compound_send_recv(xid, ses, flags, num_rqst,
+ rqst, resp_buftype,
+ rsp_iov);
+
+ finished:
+ if (cfile)
+ cifsFileInfo_put(cfile);
+
+ SMB2_open_free(&rqst[0]);
+ if (rc == -EREMCHG) {
+ printk_once(KERN_WARNING "server share %s deleted\n",
+ tcon->treeName);
+ tcon->need_reconnect = true;
+ }
+
+ switch (command) {
+ case SMB2_OP_QUERY_INFO:
+ if (rc == 0) {
+ qi_rsp = (struct smb2_query_info_rsp *)
+ rsp_iov[1].iov_base;
+ rc = smb2_validate_and_copy_iov(
+ le16_to_cpu(qi_rsp->OutputBufferOffset),
+ le32_to_cpu(qi_rsp->OutputBufferLength),
+ &rsp_iov[1], sizeof(struct smb2_file_all_info),
+ ptr);
+ }
+ if (rqst[1].rq_iov)
+ SMB2_query_info_free(&rqst[1]);
+ if (rqst[2].rq_iov)
+ SMB2_close_free(&rqst[2]);
+ if (rc)
+ trace_smb3_query_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_query_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ break;
+ case SMB2_OP_DELETE:
+ if (rc)
+ trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_delete_done(xid, ses->Suid, tcon->tid);
+ if (rqst[1].rq_iov)
+ SMB2_close_free(&rqst[1]);
+ break;
+ case SMB2_OP_MKDIR:
+ if (rc)
+ trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid);
+ if (rqst[1].rq_iov)
+ SMB2_close_free(&rqst[1]);
+ break;
+ case SMB2_OP_HARDLINK:
+ if (rc)
+ trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid);
+ free_set_inf_compound(rqst);
+ break;
+ case SMB2_OP_RENAME:
+ if (rc)
+ trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_rename_done(xid, ses->Suid, tcon->tid);
+ free_set_inf_compound(rqst);
+ break;
+ case SMB2_OP_RMDIR:
+ if (rc)
+ trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid);
+ free_set_inf_compound(rqst);
+ break;
+ case SMB2_OP_SET_EOF:
+ if (rc)
+ trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid);
+ free_set_inf_compound(rqst);
+ break;
+ case SMB2_OP_SET_INFO:
+ if (rc)
+ trace_smb3_set_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_set_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ free_set_inf_compound(rqst);
+ break;
+ }
+ free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
+ free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
+ free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
+ return rc;
+}
+
+void
+move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src)
+{
+ memcpy(dst, src, (size_t)(&src->CurrentByteOffset) - (size_t)src);
+ dst->CurrentByteOffset = src->CurrentByteOffset;
+ dst->Mode = src->Mode;
+ dst->AlignmentRequirement = src->AlignmentRequirement;
+ dst->IndexNumber1 = 0; /* we don't use it */
+}
+
+int
+smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, const char *full_path,
+ FILE_ALL_INFO *data, bool *adjust_tz, bool *symlink)
+{
+ int rc;
+ struct smb2_file_all_info *smb2_data;
+ __u32 create_options = 0;
+ struct cifs_fid fid;
+ bool no_cached_open = tcon->nohandlecache;
+ struct cifsFileInfo *cfile;
+
+ *adjust_tz = false;
+ *symlink = false;
+
+ smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
+ GFP_KERNEL);
+ if (smb2_data == NULL)
+ return -ENOMEM;
+
+ /* If it is a root and its handle is cached then use it */
+ if (!strlen(full_path) && !no_cached_open) {
+ rc = open_shroot(xid, tcon, cifs_sb, &fid);
+ if (rc)
+ goto out;
+
+ if (tcon->crfid.file_all_info_is_valid) {
+ move_smb2_info_to_cifs(data,
+ &tcon->crfid.file_all_info);
+ } else {
+ rc = SMB2_query_info(xid, tcon, fid.persistent_fid,
+ fid.volatile_fid, smb2_data);
+ if (!rc)
+ move_smb2_info_to_cifs(data, smb2_data);
+ }
+ close_shroot(&tcon->crfid);
+ goto out;
+ }
+
+ cifs_get_readable_path(tcon, full_path, &cfile);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
+ FILE_READ_ATTRIBUTES, FILE_OPEN, create_options,
+ ACL_NO_MODE, smb2_data, SMB2_OP_QUERY_INFO, cfile);
+ if (rc == -EOPNOTSUPP) {
+ *symlink = true;
+ create_options |= OPEN_REPARSE_POINT;
+
+ /* Failed on a symbolic link - query a reparse point info */
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
+ FILE_READ_ATTRIBUTES, FILE_OPEN,
+ create_options, ACL_NO_MODE,
+ smb2_data, SMB2_OP_QUERY_INFO, NULL);
+ }
+ if (rc)
+ goto out;
+
+ move_smb2_info_to_cifs(data, smb2_data);
+out:
+ kfree(smb2_data);
+ return rc;
+}
+
+int
+smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode,
+ struct cifs_tcon *tcon, const char *name,
+ struct cifs_sb_info *cifs_sb)
+{
+ return smb2_compound_op(xid, tcon, cifs_sb, name,
+ FILE_WRITE_ATTRIBUTES, FILE_CREATE,
+ CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR,
+ NULL);
+}
+
+void
+smb2_mkdir_setinfo(struct inode *inode, const char *name,
+ struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
+ const unsigned int xid)
+{
+ FILE_BASIC_INFO data;
+ struct cifsInodeInfo *cifs_i;
+ struct cifsFileInfo *cfile;
+ u32 dosattrs;
+ int tmprc;
+
+ memset(&data, 0, sizeof(data));
+ cifs_i = CIFS_I(inode);
+ dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
+ data.Attributes = cpu_to_le32(dosattrs);
+ cifs_get_writable_path(tcon, name, FIND_WR_ANY, &cfile);
+ tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
+ FILE_WRITE_ATTRIBUTES, FILE_CREATE,
+ CREATE_NOT_FILE, ACL_NO_MODE,
+ &data, SMB2_OP_SET_INFO, cfile);
+ if (tmprc == 0)
+ cifs_i->cifsAttrs = dosattrs;
+}
+
+int
+smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
+ struct cifs_sb_info *cifs_sb)
+{
+ return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
+ CREATE_NOT_FILE, ACL_NO_MODE,
+ NULL, SMB2_OP_RMDIR, NULL);
+}
+
+int
+smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
+ struct cifs_sb_info *cifs_sb)
+{
+ return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
+ CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
+ ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL);
+}
+
+static int
+smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb, __u32 access, int command,
+ struct cifsFileInfo *cfile)
+{
+ __le16 *smb2_to_name = NULL;
+ int rc;
+
+ smb2_to_name = cifs_convert_path_to_utf16(to_name, cifs_sb);
+ if (smb2_to_name == NULL) {
+ rc = -ENOMEM;
+ goto smb2_rename_path;
+ }
+ rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
+ FILE_OPEN, 0, ACL_NO_MODE, smb2_to_name,
+ command, cfile);
+smb2_rename_path:
+ kfree(smb2_to_name);
+ return rc;
+}
+
+int
+smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb)
+{
+ struct cifsFileInfo *cfile;
+
+ cifs_get_writable_path(tcon, from_name, FIND_WR_WITH_DELETE, &cfile);
+
+ return smb2_set_path_attr(xid, tcon, from_name, to_name,
+ cifs_sb, DELETE, SMB2_OP_RENAME, cfile);
+}
+
+int
+smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb)
+{
+ return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
+ FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK,
+ NULL);
+}
+
+int
+smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *full_path, __u64 size,
+ struct cifs_sb_info *cifs_sb, bool set_alloc)
+{
+ __le64 eof = cpu_to_le64(size);
+
+ return smb2_compound_op(xid, tcon, cifs_sb, full_path,
+ FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE,
+ &eof, SMB2_OP_SET_EOF, NULL);
+}
+
+int
+smb2_set_file_info(struct inode *inode, const char *full_path,
+ FILE_BASIC_INFO *buf, const unsigned int xid)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct tcon_link *tlink;
+ int rc;
+
+ if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
+ (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) &&
+ (buf->Attributes == 0))
+ return 0; /* would be a no op, no sense sending this */
+
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink))
+ return PTR_ERR(tlink);
+
+ rc = smb2_compound_op(xid, tlink_tcon(tlink), cifs_sb, full_path,
+ FILE_WRITE_ATTRIBUTES, FILE_OPEN,
+ 0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, NULL);
+ cifs_put_tlink(tlink);
+ return rc;
+}