Commit 465d7204 authored by Hyunchul Lee's avatar Hyunchul Lee Committed by Namjae Jeon
Browse files

ksmbd: call mnt_user_ns once in a function 



Avoid calling mnt_user_ns() many time in
a function.

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Christian Brauner <christian@brauner.io>
Signed-off-by: default avatarHyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: default avatarNamjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 690f9697

fs/ksmbd/oplock.c

+3 −2
Original line number Diff line number Diff line
@@ -1582,6 +1582,7 @@ void create_posix_rsp_buf(char *cc, struct ksmbd_file *fp) 
{

	struct create_posix_rsp *buf;

	struct inode *inode = file_inode(fp->filp);

	struct user_namespace *user_ns = file_mnt_user_ns(fp->filp);



	buf = (struct create_posix_rsp *)cc;

	memset(buf, 0, sizeof(struct create_posix_rsp));
@@ -1612,9 +1613,9 @@ void create_posix_rsp_buf(char *cc, struct ksmbd_file *fp) 
	buf->nlink = cpu_to_le32(inode->i_nlink);

	buf->reparse_tag = cpu_to_le32(fp->volatile_id);

	buf->mode = cpu_to_le32(inode->i_mode);

	id_to_sid(from_kuid(file_mnt_user_ns(fp->filp), inode->i_uid),

	id_to_sid(from_kuid(user_ns, inode->i_uid),

		  SIDNFS_USER, (struct smb_sid *)&buf->SidBuffer[0]);

	id_to_sid(from_kgid(file_mnt_user_ns(fp->filp), inode->i_gid),

	id_to_sid(from_kgid(user_ns, inode->i_gid),

		  SIDNFS_GROUP, (struct smb_sid *)&buf->SidBuffer[20]);

}

fs/ksmbd/smb2pdu.c

+45 −32
Original line number Diff line number Diff line
@@ -2050,6 +2050,7 @@ static noinline int create_smb2_pipe(struct ksmbd_work *work) 
 */

static int smb2_set_ea(struct smb2_ea_info *eabuf, struct path *path)

{

	struct user_namespace *user_ns = mnt_user_ns(path->mnt);

	char *attr_name = NULL, *value;

	int rc = 0;

	int next = 0;
@@ -2081,7 +2082,7 @@ static int smb2_set_ea(struct smb2_ea_info *eabuf, struct path *path) 
		value = (char *)&eabuf->name + eabuf->EaNameLength + 1;



		if (!eabuf->EaValueLength) {

			rc = ksmbd_vfs_casexattr_len(mnt_user_ns(path->mnt),

			rc = ksmbd_vfs_casexattr_len(user_ns,

						     path->dentry,

						     attr_name,

						     XATTR_USER_PREFIX_LEN +
@@ -2089,7 +2090,7 @@ static int smb2_set_ea(struct smb2_ea_info *eabuf, struct path *path) 


			/* delete the EA only when it exits */

			if (rc > 0) {

				rc = ksmbd_vfs_remove_xattr(mnt_user_ns(path->mnt),

				rc = ksmbd_vfs_remove_xattr(user_ns,

							    path->dentry,

							    attr_name);
@@ -2104,7 +2105,7 @@ static int smb2_set_ea(struct smb2_ea_info *eabuf, struct path *path) 
			/* if the EA doesn't exist, just do nothing. */

			rc = 0;

		} else {

			rc = ksmbd_vfs_setxattr(mnt_user_ns(path->mnt),

			rc = ksmbd_vfs_setxattr(user_ns,

						path->dentry, attr_name, value,

						le16_to_cpu(eabuf->EaValueLength), 0);

			if (rc < 0) {
@@ -2143,6 +2144,7 @@ static noinline int smb2_set_stream_name_xattr(struct path *path, 
					       struct ksmbd_file *fp,

					       char *stream_name, int s_type)

{

	struct user_namespace *user_ns = mnt_user_ns(path->mnt);

	size_t xattr_stream_size;

	char *xattr_stream_name;

	int rc;
@@ -2158,7 +2160,7 @@ static noinline int smb2_set_stream_name_xattr(struct path *path, 
	fp->stream.size = xattr_stream_size;



	/* Check if there is stream prefix in xattr space */

	rc = ksmbd_vfs_casexattr_len(mnt_user_ns(path->mnt),

	rc = ksmbd_vfs_casexattr_len(user_ns,

				     path->dentry,

				     xattr_stream_name,

				     xattr_stream_size);
@@ -2170,8 +2172,8 @@ static noinline int smb2_set_stream_name_xattr(struct path *path, 
		return -EBADF;

	}



	rc = ksmbd_vfs_setxattr(mnt_user_ns(path->mnt),

				path->dentry, xattr_stream_name, NULL, 0, 0);

	rc = ksmbd_vfs_setxattr(user_ns, path->dentry,

				xattr_stream_name, NULL, 0, 0);

	if (rc < 0)

		pr_err("Failed to store XATTR stream name :%d\n", rc);

	return 0;
@@ -2179,6 +2181,7 @@ static noinline int smb2_set_stream_name_xattr(struct path *path, 


static int smb2_remove_smb_xattrs(struct path *path)

{

	struct user_namespace *user_ns = mnt_user_ns(path->mnt);

	char *name, *xattr_list = NULL;

	ssize_t xattr_list_len;

	int err = 0;
@@ -2201,8 +2204,7 @@ static int smb2_remove_smb_xattrs(struct path *path) 
		    strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX, STREAM_PREFIX_LEN))

			continue;



		err = ksmbd_vfs_remove_xattr(mnt_user_ns(path->mnt),

					     path->dentry, name);

		err = ksmbd_vfs_remove_xattr(user_ns, path->dentry, name);

		if (err)

			ksmbd_debug(SMB, "remove xattr failed : %s\n", name);

	}
@@ -2366,6 +2368,7 @@ int smb2_open(struct ksmbd_work *work) 
	struct ksmbd_share_config *share = tcon->share_conf;

	struct ksmbd_file *fp = NULL;

	struct file *filp = NULL;

	struct user_namespace *user_ns = NULL;

	struct kstat stat;

	struct create_context *context;

	struct lease_ctx_info *lc = NULL;
@@ -2642,7 +2645,8 @@ int smb2_open(struct ksmbd_work *work) 
		rc = 0;

	} else {

		file_present = true;

		generic_fillattr(mnt_user_ns(path.mnt), d_inode(path.dentry), &stat);

		user_ns = mnt_user_ns(path.mnt);

		generic_fillattr(user_ns, d_inode(path.dentry), &stat);

	}

	if (stream_name) {

		if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) {
@@ -2703,7 +2707,7 @@ int smb2_open(struct ksmbd_work *work) 
		if (!file_present) {

			daccess = cpu_to_le32(GENERIC_ALL_FLAGS);

		} else {

			rc = ksmbd_vfs_query_maximal_access(mnt_user_ns(path.mnt),

			rc = ksmbd_vfs_query_maximal_access(user_ns,

							    path.dentry,

							    &daccess);

			if (rc)
@@ -2734,6 +2738,7 @@ int smb2_open(struct ksmbd_work *work) 
			goto err_out;



		created = true;

		user_ns = mnt_user_ns(path.mnt);

		if (ea_buf) {

			rc = smb2_set_ea(&ea_buf->ea, &path);

			if (rc == -EOPNOTSUPP)
@@ -2747,7 +2752,7 @@ int smb2_open(struct ksmbd_work *work) 
		 * is already granted.

		 */

		if (daccess & ~(FILE_READ_ATTRIBUTES_LE | FILE_READ_CONTROL_LE)) {

			rc = inode_permission(mnt_user_ns(path.mnt),

			rc = inode_permission(user_ns,

					      d_inode(path.dentry),

					      may_flags);

			if (rc)
@@ -2755,7 +2760,7 @@ int smb2_open(struct ksmbd_work *work) 


			if ((daccess & FILE_DELETE_LE) ||

			    (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) {

				rc = ksmbd_vfs_may_delete(mnt_user_ns(path.mnt),

				rc = ksmbd_vfs_may_delete(user_ns,

							  path.dentry);

				if (rc)

					goto err_out;
@@ -2819,7 +2824,7 @@ int smb2_open(struct ksmbd_work *work) 
		int posix_acl_rc;

		struct inode *inode = d_inode(path.dentry);



		posix_acl_rc = ksmbd_vfs_inherit_posix_acl(mnt_user_ns(path.mnt),

		posix_acl_rc = ksmbd_vfs_inherit_posix_acl(user_ns,

							   inode,

							   d_inode(path.dentry->d_parent));

		if (posix_acl_rc)
@@ -2835,7 +2840,7 @@ int smb2_open(struct ksmbd_work *work) 
			rc = smb2_create_sd_buffer(work, req, &path);

			if (rc) {

				if (posix_acl_rc)

					ksmbd_vfs_set_init_posix_acl(mnt_user_ns(path.mnt),

					ksmbd_vfs_set_init_posix_acl(user_ns,

								     inode);



				if (test_share_config_flag(work->tcon->share_conf,
@@ -2858,7 +2863,7 @@ int smb2_open(struct ksmbd_work *work) 
					if (!pntsd)

						goto err_out;



					rc = build_sec_desc(mnt_user_ns(path.mnt),

					rc = build_sec_desc(user_ns,

							    pntsd, NULL,

							    OWNER_SECINFO |

							    GROUP_SECINFO |
@@ -2868,7 +2873,7 @@ int smb2_open(struct ksmbd_work *work) 
					posix_acl_release(fattr.cf_dacls);



					rc = ksmbd_vfs_set_sd_xattr(conn,

								    mnt_user_ns(path.mnt),

								    user_ns,

								    path.dentry,

								    pntsd,

								    pntsd_size);
@@ -2910,7 +2915,7 @@ int smb2_open(struct ksmbd_work *work) 


	rc = ksmbd_vfs_getattr(&path, &stat);

	if (rc) {

		generic_fillattr(mnt_user_ns(path.mnt), d_inode(path.dentry), &stat);

		generic_fillattr(user_ns, d_inode(path.dentry), &stat);

		rc = 0;

	}
@@ -3011,7 +3016,7 @@ int smb2_open(struct ksmbd_work *work) 


	memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE);



	generic_fillattr(file_mnt_user_ns(fp->filp), file_inode(fp->filp),

	generic_fillattr(user_ns, file_inode(fp->filp),

			 &stat);



	rsp->StructureSize = cpu_to_le16(89);
@@ -3064,7 +3069,7 @@ int smb2_open(struct ksmbd_work *work) 
		struct create_context *mxac_ccontext;



		if (maximal_access == 0)

			ksmbd_vfs_query_maximal_access(mnt_user_ns(path.mnt),

			ksmbd_vfs_query_maximal_access(user_ns,

						       path.dentry,

						       &maximal_access);

		mxac_ccontext = (struct create_context *)(rsp->Buffer +
@@ -3482,6 +3487,7 @@ static void unlock_dir(struct ksmbd_file *dir_fp) 


static int process_query_dir_entries(struct smb2_query_dir_private *priv)

{

	struct user_namespace	*user_ns = file_mnt_user_ns(priv->dir_fp->filp);

	struct kstat		kstat;

	struct ksmbd_kstat	ksmbd_kstat;

	int			rc;
@@ -3515,14 +3521,14 @@ static int process_query_dir_entries(struct smb2_query_dir_private *priv) 
		ksmbd_kstat.kstat = &kstat;

		if (priv->info_level != FILE_NAMES_INFORMATION)

			ksmbd_vfs_fill_dentry_attrs(priv->work,

						    file_mnt_user_ns(priv->dir_fp->filp),

						    user_ns,

						    dent,

						    &ksmbd_kstat);



		rc = smb2_populate_readdir_entry(priv->work->conn,

						 priv->info_level,

						 priv->d_info,

						 file_mnt_user_ns(priv->dir_fp->filp),

						 user_ns,

						 &ksmbd_kstat);

		dput(dent);

		if (rc)
@@ -3981,6 +3987,7 @@ static int smb2_get_ea(struct ksmbd_work *work, struct ksmbd_file *fp, 
	ssize_t buf_free_len, alignment_bytes, next_offset, rsp_data_cnt = 0;

	struct smb2_ea_info_req *ea_req = NULL;

	struct path *path;

	struct user_namespace *user_ns = file_mnt_user_ns(fp->filp);



	if (!(fp->daccess & FILE_READ_EA_LE)) {

		pr_err("Not permitted to read ext attr : 0x%x\n",
@@ -4057,8 +4064,8 @@ static int smb2_get_ea(struct ksmbd_work *work, struct ksmbd_file *fp, 
		buf_free_len -= (offsetof(struct smb2_ea_info, name) +

				name_len + 1);

		/* bailout if xattr can't fit in buf_free_len */

		value_len = ksmbd_vfs_getxattr(mnt_user_ns(path->mnt),

					       path->dentry, name, &buf);

		value_len = ksmbd_vfs_getxattr(user_ns, path->dentry,

					       name, &buf);

		if (value_len <= 0) {

			rc = -ENOENT;

			rsp->hdr.Status = STATUS_INVALID_HANDLE;
@@ -4909,6 +4916,7 @@ static int smb2_get_info_sec(struct ksmbd_work *work, 
			     struct smb2_query_info_rsp *rsp, void *rsp_org)

{

	struct ksmbd_file *fp;

	struct user_namespace *user_ns;

	struct smb_ntsd *pntsd = (struct smb_ntsd *)rsp->Buffer, *ppntsd = NULL;

	struct smb_fattr fattr = {{0}};

	struct inode *inode;
@@ -4955,16 +4963,17 @@ static int smb2_get_info_sec(struct ksmbd_work *work, 
	if (!fp)

		return -ENOENT;



	user_ns = file_mnt_user_ns(fp->filp);

	inode = file_inode(fp->filp);

	ksmbd_acls_fattr(&fattr, inode);



	if (test_share_config_flag(work->tcon->share_conf,

				   KSMBD_SHARE_FLAG_ACL_XATTR))

		ksmbd_vfs_get_sd_xattr(work->conn, file_mnt_user_ns(fp->filp),

		ksmbd_vfs_get_sd_xattr(work->conn, user_ns,

				       fp->filp->f_path.dentry, &ppntsd);



	rc = build_sec_desc(file_mnt_user_ns(fp->filp),

			    pntsd, ppntsd, addition_info, &secdesclen, &fattr);

	rc = build_sec_desc(user_ns, pntsd, ppntsd, addition_info,

			    &secdesclen, &fattr);

	posix_acl_release(fattr.cf_acls);

	posix_acl_release(fattr.cf_dacls);

	kfree(ppntsd);
@@ -5388,6 +5397,7 @@ static int set_file_basic_info(struct ksmbd_file *fp, char *buf, 
	struct iattr temp_attrs;

	struct file *filp;

	struct inode *inode;

	struct user_namespace *user_ns;

	int rc;



	if (!(fp->daccess & FILE_WRITE_ATTRIBUTES_LE))
@@ -5397,6 +5407,7 @@ static int set_file_basic_info(struct ksmbd_file *fp, char *buf, 
	attrs.ia_valid = 0;

	filp = fp->filp;

	inode = file_inode(filp);

	user_ns = file_mnt_user_ns(filp);



	if (file_info->CreationTime)

		fp->create_time = le64_to_cpu(file_info->CreationTime);
@@ -5442,7 +5453,7 @@ static int set_file_basic_info(struct ksmbd_file *fp, char *buf, 
		da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME |

			XATTR_DOSINFO_ITIME;



		rc = ksmbd_vfs_set_dos_attrib_xattr(file_mnt_user_ns(filp),

		rc = ksmbd_vfs_set_dos_attrib_xattr(user_ns,

						    filp->f_path.dentry, &da);

		if (rc)

			ksmbd_debug(SMB,
@@ -5464,14 +5475,14 @@ static int set_file_basic_info(struct ksmbd_file *fp, char *buf, 
		if (IS_IMMUTABLE(inode) || IS_APPEND(inode))

			return -EACCES;



		rc = setattr_prepare(file_mnt_user_ns(filp), dentry, &attrs);

		rc = setattr_prepare(user_ns, dentry, &attrs);

		if (rc)

			return -EINVAL;



		inode_lock(inode);

		setattr_copy(file_mnt_user_ns(filp), inode, &attrs);

		setattr_copy(user_ns, inode, &attrs);

		attrs.ia_valid &= ~ATTR_CTIME;

		rc = notify_change(file_mnt_user_ns(filp), dentry, &attrs, NULL);

		rc = notify_change(user_ns, dentry, &attrs, NULL);

		inode_unlock(inode);

	}

	return 0;
@@ -7201,12 +7212,14 @@ static inline int fsctl_set_sparse(struct ksmbd_work *work, u64 id, 
				   struct file_sparse *sparse)

{

	struct ksmbd_file *fp;

	struct user_namespace *user_ns;

	int ret = 0;

	__le32 old_fattr;



	fp = ksmbd_lookup_fd_fast(work, id);

	if (!fp)

		return -ENOENT;

	user_ns = file_mnt_user_ns(fp->filp);



	old_fattr = fp->f_ci->m_fattr;

	if (sparse->SetSparse)
@@ -7219,13 +7232,13 @@ static inline int fsctl_set_sparse(struct ksmbd_work *work, u64 id, 
				   KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) {

		struct xattr_dos_attrib da;



		ret = ksmbd_vfs_get_dos_attrib_xattr(file_mnt_user_ns(fp->filp),

		ret = ksmbd_vfs_get_dos_attrib_xattr(user_ns,

						     fp->filp->f_path.dentry, &da);

		if (ret <= 0)

			goto out;



		da.attr = le32_to_cpu(fp->f_ci->m_fattr);

		ret = ksmbd_vfs_set_dos_attrib_xattr(file_mnt_user_ns(fp->filp),

		ret = ksmbd_vfs_set_dos_attrib_xattr(user_ns,

						     fp->filp->f_path.dentry, &da);

		if (ret)

			fp->f_ci->m_fattr = old_fattr;

fs/ksmbd/smb_common.c

+3 −2
Original line number Diff line number Diff line
@@ -279,6 +279,7 @@ int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level, 
{

	int i, rc = 0;

	struct ksmbd_conn *conn = work->conn;

	struct user_namespace *user_ns = file_mnt_user_ns(dir->filp);



	for (i = 0; i < 2; i++) {

		struct kstat kstat;
@@ -301,11 +302,11 @@ int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level, 


			ksmbd_kstat.kstat = &kstat;

			ksmbd_vfs_fill_dentry_attrs(work,

						    file_mnt_user_ns(dir->filp),

						    user_ns,

						    dir->filp->f_path.dentry->d_parent,

						    &ksmbd_kstat);

			rc = fn(conn, info_level, d_info,

				file_mnt_user_ns(dir->filp), &ksmbd_kstat);

				user_ns, &ksmbd_kstat);

			if (rc)

				break;

			if (d_info->out_buf_len <= 0)

fs/ksmbd/smbacl.c

+14 −11
Original line number Diff line number Diff line
@@ -960,12 +960,13 @@ int smb_inherit_dacl(struct ksmbd_conn *conn, 
	struct smb_ntsd *parent_pntsd = NULL;

	struct smb_sid owner_sid, group_sid;

	struct dentry *parent = path->dentry->d_parent;

	struct user_namespace *user_ns = mnt_user_ns(path->mnt);

	int inherited_flags = 0, flags = 0, i, ace_cnt = 0, nt_size = 0;

	int rc = -ENOENT, num_aces, dacloffset, pntsd_type, acl_len;

	char *aces_base;

	bool is_dir = S_ISDIR(d_inode(path->dentry)->i_mode);



	acl_len = ksmbd_vfs_get_sd_xattr(conn, mnt_user_ns(path->mnt),

	acl_len = ksmbd_vfs_get_sd_xattr(conn, user_ns,

					 parent, &parent_pntsd);

	if (acl_len <= 0)

		return rc;
@@ -1097,7 +1098,7 @@ int smb_inherit_dacl(struct ksmbd_conn *conn, 
			pntsd_size += sizeof(struct smb_acl) + nt_size;

		}



		ksmbd_vfs_set_sd_xattr(conn, mnt_user_ns(path->mnt),

		ksmbd_vfs_set_sd_xattr(conn, user_ns,

				       path->dentry, pntsd, pntsd_size);

		kfree(pntsd);

		rc = 0;
@@ -1124,6 +1125,7 @@ bool smb_inherit_flags(int flags, bool is_dir) 
int smb_check_perm_dacl(struct ksmbd_conn *conn, struct path *path,

			__le32 *pdaccess, int uid)

{

	struct user_namespace *user_ns = mnt_user_ns(path->mnt);

	struct smb_ntsd *pntsd = NULL;

	struct smb_acl *pdacl;

	struct posix_acl *posix_acls;
@@ -1139,7 +1141,7 @@ int smb_check_perm_dacl(struct ksmbd_conn *conn, struct path *path, 
	char *end_of_acl;



	ksmbd_debug(SMB, "check permission using windows acl\n");

	acl_size = ksmbd_vfs_get_sd_xattr(conn, mnt_user_ns(path->mnt),

	acl_size = ksmbd_vfs_get_sd_xattr(conn, user_ns,

					  path->dentry, &pntsd);

	if (acl_size <= 0 || !pntsd || !pntsd->dacloffset) {

		kfree(pntsd);
@@ -1221,10 +1223,10 @@ int smb_check_perm_dacl(struct ksmbd_conn *conn, struct path *path, 
		pa_entry = posix_acls->a_entries;

		for (i = 0; i < posix_acls->a_count; i++, pa_entry++) {

			if (pa_entry->e_tag == ACL_USER)

				id = from_kuid(mnt_user_ns(path->mnt),

				id = from_kuid(user_ns,

					       pa_entry->e_uid);

			else if (pa_entry->e_tag == ACL_GROUP)

				id = from_kgid(mnt_user_ns(path->mnt),

				id = from_kgid(user_ns,

					       pa_entry->e_gid);

			else

				continue;
@@ -1282,12 +1284,13 @@ int set_info_sec(struct ksmbd_conn *conn, struct ksmbd_tree_connect *tcon, 
	int rc;

	struct smb_fattr fattr = {{0}};

	struct inode *inode = d_inode(path->dentry);

	struct user_namespace *user_ns = mnt_user_ns(path->mnt);



	fattr.cf_uid = INVALID_UID;

	fattr.cf_gid = INVALID_GID;

	fattr.cf_mode = inode->i_mode;



	rc = parse_sec_desc(mnt_user_ns(path->mnt), pntsd, ntsd_len, &fattr);

	rc = parse_sec_desc(user_ns, pntsd, ntsd_len, &fattr);

	if (rc)

		goto out;
@@ -1298,13 +1301,13 @@ int set_info_sec(struct ksmbd_conn *conn, struct ksmbd_tree_connect *tcon, 
		inode->i_gid = fattr.cf_gid;

	mark_inode_dirty(inode);



	ksmbd_vfs_remove_acl_xattrs(mnt_user_ns(path->mnt), path->dentry);

	ksmbd_vfs_remove_acl_xattrs(user_ns, path->dentry);

	/* Update posix acls */

	if (fattr.cf_dacls) {

		rc = set_posix_acl(mnt_user_ns(path->mnt), inode,

		rc = set_posix_acl(user_ns, inode,

				   ACL_TYPE_ACCESS, fattr.cf_acls);

		if (S_ISDIR(inode->i_mode) && fattr.cf_dacls)

			rc = set_posix_acl(mnt_user_ns(path->mnt), inode,

			rc = set_posix_acl(user_ns, inode,

					   ACL_TYPE_DEFAULT, fattr.cf_dacls);

	}
@@ -1314,8 +1317,8 @@ int set_info_sec(struct ksmbd_conn *conn, struct ksmbd_tree_connect *tcon, 


	if (test_share_config_flag(tcon->share_conf, KSMBD_SHARE_FLAG_ACL_XATTR)) {

		/* Update WinACL in xattr */

		ksmbd_vfs_remove_sd_xattrs(mnt_user_ns(path->mnt), path->dentry);

		ksmbd_vfs_set_sd_xattr(conn, mnt_user_ns(path->mnt),

		ksmbd_vfs_remove_sd_xattrs(user_ns, path->dentry);

		ksmbd_vfs_set_sd_xattr(conn, user_ns,

				       path->dentry, pntsd, ntsd_len);

	}

fs/ksmbd/vfs.c

+3 −2
Original line number Diff line number Diff line
@@ -406,6 +406,7 @@ static int ksmbd_vfs_stream_write(struct ksmbd_file *fp, char *buf, loff_t *pos, 
				  size_t count)

{

	char *stream_buf = NULL, *wbuf;

	struct user_namespace *user_ns = file_mnt_user_ns(fp->filp);

	size_t size, v_len;

	int err = 0;
@@ -418,7 +419,7 @@ static int ksmbd_vfs_stream_write(struct ksmbd_file *fp, char *buf, loff_t *pos, 
		count = (*pos + count) - XATTR_SIZE_MAX;

	}



	v_len = ksmbd_vfs_getcasexattr(file_mnt_user_ns(fp->filp),

	v_len = ksmbd_vfs_getcasexattr(user_ns,

				       fp->filp->f_path.dentry,

				       fp->stream.name,

				       fp->stream.size,
@@ -444,7 +445,7 @@ static int ksmbd_vfs_stream_write(struct ksmbd_file *fp, char *buf, loff_t *pos, 


	memcpy(&stream_buf[*pos], buf, count);



	err = ksmbd_vfs_setxattr(file_mnt_user_ns(fp->filp),

	err = ksmbd_vfs_setxattr(user_ns,

				 fp->filp->f_path.dentry,

				 fp->stream.name,

				 (void *)stream_buf,