#define SMB_INTERFACE_POLL_INTERVAL 600
/* maximum number of PDUs in one compound */
-#define MAX_COMPOUND 7
+#define MAX_COMPOUND 10
/*
* Default number of credits to keep available for SMB3.
/* cifs_get_writable_file() flags */
-#define FIND_WR_ANY 0
-#define FIND_WR_FSUID_ONLY 1
-#define FIND_WR_WITH_DELETE 2
+enum cifs_writable_file_flags {
+ FIND_WR_ANY = 0U,
+ FIND_WR_FSUID_ONLY = (1U << 0),
+ FIND_WR_WITH_DELETE = (1U << 1),
+ FIND_WR_NO_PENDING_DELETE = (1U << 2),
+};
#define MID_FREE 0
#define MID_REQUEST_ALLOCATED 1
struct kvec qi_iov;
struct kvec io_iov[SMB2_IOCTL_IOV_SIZE];
struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE];
+ struct kvec unlink_iov[SMB2_SET_INFO_IOV_SIZE];
+ struct kvec rename_iov[SMB2_SET_INFO_IOV_SIZE];
struct kvec close_iov;
struct smb2_file_rename_info_hdr rename_info;
struct smb2_file_link_info_hdr link_info;
/* Get the cached handle as SMB2 close is deferred */
if (OPEN_FMODE(file->f_flags) & FMODE_WRITE) {
- rc = cifs_get_writable_path(tcon, full_path, FIND_WR_FSUID_ONLY, &cfile);
+ rc = cifs_get_writable_path(tcon, full_path,
+ FIND_WR_FSUID_ONLY |
+ FIND_WR_NO_PENDING_DELETE,
+ &cfile);
} else {
rc = cifs_get_readable_path(tcon, full_path, &cfile);
}
continue;
if (with_delete && !(open_file->fid.access & DELETE))
continue;
+ if ((flags & FIND_WR_NO_PENDING_DELETE) &&
+ open_file->status_file_deleted)
+ continue;
if (OPEN_FMODE(open_file->f_flags) & FMODE_WRITE) {
if (!open_file->invalidHandle) {
/* found a good writable file */
spin_unlock(&tcon->open_file_lock);
free_dentry_path(page);
*ret_file = find_readable_file(cinode, 0);
+ if (*ret_file) {
+ spin_lock(&cinode->open_file_lock);
+ if ((*ret_file)->status_file_deleted) {
+ spin_unlock(&cinode->open_file_lock);
+ cifsFileInfo_put(*ret_file);
+ *ret_file = NULL;
+ } else {
+ spin_unlock(&cinode->open_file_lock);
+ }
+ }
return *ret_file ? 0 : -ENOENT;
}
* but will return the EACCES to the caller. Note that the VFS does not call
* unlink on negative dentries currently.
*/
-int cifs_unlink(struct inode *dir, struct dentry *dentry)
+static int __cifs_unlink(struct inode *dir, struct dentry *dentry, bool sillyrename)
{
int rc = 0;
unsigned int xid;
goto psx_del_no_retry;
}
- rc = server->ops->unlink(xid, tcon, full_path, cifs_sb, dentry);
+ if (sillyrename || (server->vals->protocol_id > SMB10_PROT_ID &&
+ d_is_positive(dentry) && d_count(dentry) > 2))
+ rc = -EBUSY;
+ else
+ rc = server->ops->unlink(xid, tcon, full_path, cifs_sb, dentry);
psx_del_no_retry:
if (!rc) {
return rc;
}
+int cifs_unlink(struct inode *dir, struct dentry *dentry)
+{
+ return __cifs_unlink(dir, dentry, false);
+}
+
static int
cifs_mkdir_qinfo(struct inode *parent, struct dentry *dentry, umode_t mode,
const char *full_path, struct cifs_sb_info *cifs_sb,
rc = server->ops->rmdir(xid, tcon, full_path, cifs_sb);
cifs_put_tlink(tlink);
+ cifsInode = CIFS_I(d_inode(direntry));
+
if (!rc) {
+ set_bit(CIFS_INO_DELETE_PENDING, &cifsInode->flags);
spin_lock(&d_inode(direntry)->i_lock);
i_size_write(d_inode(direntry), 0);
clear_nlink(d_inode(direntry));
spin_unlock(&d_inode(direntry)->i_lock);
}
- cifsInode = CIFS_I(d_inode(direntry));
/* force revalidate to go get info when needed */
cifsInode->time = 0;
}
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
do_rename_exit:
- if (rc == 0)
+ if (rc == 0) {
d_move(from_dentry, to_dentry);
+ /* Force a new lookup */
+ d_drop(from_dentry);
+ }
cifs_put_tlink(tlink);
return rc;
}
struct dentry *target_dentry, unsigned int flags)
{
const char *from_name, *to_name;
+ struct TCP_Server_Info *server;
void *page1, *page2;
struct cifs_sb_info *cifs_sb;
struct tcon_link *tlink;
if (IS_ERR(tlink))
return PTR_ERR(tlink);
tcon = tlink_tcon(tlink);
+ server = tcon->ses->server;
page1 = alloc_dentry_path();
page2 = alloc_dentry_path();
unlink_target:
#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */
-
- /* Try unlinking the target dentry if it's not negative */
- if (d_really_is_positive(target_dentry) && (rc == -EACCES || rc == -EEXIST)) {
- if (d_is_dir(target_dentry))
- tmprc = cifs_rmdir(target_dir, target_dentry);
- else
- tmprc = cifs_unlink(target_dir, target_dentry);
- if (tmprc)
- goto cifs_rename_exit;
- rc = cifs_do_rename(xid, source_dentry, from_name,
- target_dentry, to_name);
- if (!rc)
- rehash = false;
+ if (d_really_is_positive(target_dentry)) {
+ if (!rc) {
+ struct inode *inode = d_inode(target_dentry);
+ /*
+ * Samba and ksmbd servers allow renaming a target
+ * directory that is open, so make sure to update
+ * ->i_nlink and then mark it as delete pending.
+ */
+ if (S_ISDIR(inode->i_mode)) {
+ drop_cached_dir_by_name(xid, tcon, to_name, cifs_sb);
+ spin_lock(&inode->i_lock);
+ i_size_write(inode, 0);
+ clear_nlink(inode);
+ spin_unlock(&inode->i_lock);
+ set_bit(CIFS_INO_DELETE_PENDING, &CIFS_I(inode)->flags);
+ CIFS_I(inode)->time = 0; /* force reval */
+ inode_set_ctime_current(inode);
+ inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
+ }
+ } else if (rc == -EACCES || rc == -EEXIST) {
+ /*
+ * Rename failed, possibly due to a busy target.
+ * Retry it by unliking the target first.
+ */
+ if (d_is_dir(target_dentry)) {
+ tmprc = cifs_rmdir(target_dir, target_dentry);
+ } else {
+ tmprc = __cifs_unlink(target_dir, target_dentry,
+ server->vals->protocol_id > SMB10_PROT_ID);
+ }
+ if (tmprc) {
+ /*
+ * Some servers will return STATUS_ACCESS_DENIED
+ * or STATUS_DIRECTORY_NOT_EMPTY when failing to
+ * rename a non-empty directory. Make sure to
+ * propagate the appropriate error back to
+ * userspace.
+ */
+ if (tmprc == -EEXIST || tmprc == -ENOTEMPTY)
+ rc = tmprc;
+ goto cifs_rename_exit;
+ }
+ rc = cifs_do_rename(xid, source_dentry, from_name,
+ target_dentry, to_name);
+ if (!rc)
+ rehash = false;
+ }
}
/* force revalidate to go get info when needed */
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
struct cached_fid *cfid = NULL;
+ if (test_bit(CIFS_INO_DELETE_PENDING, &cifs_i->flags))
+ return false;
if (cifs_i->time == 0)
return true;
SMB2_OP_QUERY_DIR,
SMB2_OP_MKDIR,
SMB2_OP_RENAME,
- SMB2_OP_DELETE,
SMB2_OP_HARDLINK,
SMB2_OP_SET_EOF,
- SMB2_OP_RMDIR,
+ SMB2_OP_UNLINK,
SMB2_OP_POSIX_QUERY_INFO,
SMB2_OP_SET_REPARSE,
SMB2_OP_GET_REPARSE,
trace_smb3_posix_query_info_compound_enter(xid, tcon->tid,
ses->Suid, full_path);
break;
- case SMB2_OP_DELETE:
- trace_smb3_delete_enter(xid, tcon->tid, ses->Suid, full_path);
- break;
case SMB2_OP_MKDIR:
/*
* Directories are created through parameters in the
*/
trace_smb3_mkdir_enter(xid, tcon->tid, ses->Suid, full_path);
break;
- case SMB2_OP_RMDIR:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ case SMB2_OP_UNLINK:
+ rqst[num_rqst].rq_iov = vars->unlink_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, server,
- &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_DISPOSITION_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (rc)
+ if (cfile) {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ current->tgid,
+ FILE_DISPOSITION_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ data, size);
+ } else {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ current->tgid,
+ FILE_DISPOSITION_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ data, size);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- trace_smb3_rmdir_enter(xid, tcon->tid, ses->Suid, full_path);
+ }
+ num_rqst++;
+ trace_smb3_unlink_enter(xid, tcon->tid, ses->Suid, full_path);
break;
case SMB2_OP_SET_EOF:
rqst[num_rqst].rq_iov = &vars->si_iov[0];
ses->Suid, full_path);
break;
case SMB2_OP_RENAME:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_iov = vars->rename_iov;
rqst[num_rqst].rq_nvec = 2;
len = in_iov[i].iov_len;
trace_smb3_posix_query_info_compound_done(xid, tcon->tid,
ses->Suid);
break;
- case SMB2_OP_DELETE:
- if (rc)
- trace_smb3_delete_err(xid, tcon->tid, ses->Suid, rc);
- else {
- /*
- * If dentry (hence, inode) is NULL, lease break is going to
- * take care of degrading leases on handles for deleted files.
- */
- if (inode)
- cifs_mark_open_handles_for_deleted_file(inode, full_path);
- trace_smb3_delete_done(xid, tcon->tid, ses->Suid);
- }
- break;
case SMB2_OP_MKDIR:
if (rc)
trace_smb3_mkdir_err(xid, tcon->tid, ses->Suid, rc);
trace_smb3_rename_done(xid, tcon->tid, ses->Suid);
SMB2_set_info_free(&rqst[num_rqst++]);
break;
- case SMB2_OP_RMDIR:
- if (rc)
- trace_smb3_rmdir_err(xid, tcon->tid, ses->Suid, rc);
+ case SMB2_OP_UNLINK:
+ if (!rc)
+ trace_smb3_unlink_done(xid, tcon->tid, ses->Suid);
else
- trace_smb3_rmdir_done(xid, tcon->tid, ses->Suid);
+ trace_smb3_unlink_err(xid, tcon->tid, ses->Suid, rc);
SMB2_set_info_free(&rqst[num_rqst++]);
break;
case SMB2_OP_SET_EOF:
FILE_OPEN, CREATE_NOT_FILE, ACL_NO_MODE);
return smb2_compound_op(xid, tcon, cifs_sb,
name, &oparms, NULL,
- &(int){SMB2_OP_RMDIR}, 1,
+ &(int){SMB2_OP_UNLINK}, 1,
NULL, NULL, NULL, NULL);
}
struct cifs_sb_info *cifs_sb, struct dentry *dentry)
{
struct cifs_open_parms oparms;
+ struct inode *inode = NULL;
+ int rc;
- oparms = CIFS_OPARMS(cifs_sb, tcon, name,
- DELETE, FILE_OPEN,
- CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
- ACL_NO_MODE);
- int rc = smb2_compound_op(xid, tcon, cifs_sb, name, &oparms,
- NULL, &(int){SMB2_OP_DELETE}, 1,
- NULL, NULL, NULL, dentry);
+ if (dentry)
+ inode = d_inode(dentry);
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name, DELETE,
+ FILE_OPEN, OPEN_REPARSE_POINT, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, name, &oparms,
+ NULL, &(int){SMB2_OP_UNLINK},
+ 1, NULL, NULL, NULL, dentry);
if (rc == -EINVAL) {
cifs_dbg(FYI, "invalid lease key, resending request without lease");
rc = smb2_compound_op(xid, tcon, cifs_sb, name, &oparms,
- NULL, &(int){SMB2_OP_DELETE}, 1,
- NULL, NULL, NULL, NULL);
+ NULL, &(int){SMB2_OP_UNLINK},
+ 1, NULL, NULL, NULL, NULL);
}
+ /*
+ * If dentry (hence, inode) is NULL, lease break is going to
+ * take care of degrading leases on handles for deleted files.
+ */
+ if (!rc && inode)
+ cifs_mark_open_handles_for_deleted_file(inode, name);
return rc;
}
cifs_free_open_info(&data);
return rc;
}
+
+static inline __le16 *utf16_smb2_path(struct cifs_sb_info *cifs_sb,
+ const char *name, size_t namelen)
+{
+ int len;
+
+ if (*name == '\\' ||
+ (cifs_sb_master_tlink(cifs_sb) &&
+ cifs_sb_master_tcon(cifs_sb)->posix_extensions && *name == '/'))
+ name++;
+ return cifs_strndup_to_utf16(name, namelen, &len,
+ cifs_sb->local_nls,
+ cifs_remap(cifs_sb));
+}
+
+int smb2_rename_pending_delete(const char *full_path,
+ struct dentry *dentry,
+ const unsigned int xid)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(d_inode(dentry)->i_sb);
+ struct cifsInodeInfo *cinode = CIFS_I(d_inode(dentry));
+ __le16 *utf16_path __free(kfree) = NULL;
+ __u32 co = file_create_options(dentry);
+ int cmds[] = {
+ SMB2_OP_SET_INFO,
+ SMB2_OP_RENAME,
+ SMB2_OP_UNLINK,
+ };
+ const int num_cmds = ARRAY_SIZE(cmds);
+ char *to_name __free(kfree) = NULL;
+ __u32 attrs = cinode->cifsAttrs;
+ struct cifs_open_parms oparms;
+ static atomic_t sillycounter;
+ struct cifsFileInfo *cfile;
+ struct tcon_link *tlink;
+ struct cifs_tcon *tcon;
+ struct kvec iov[2];
+ const char *ppath;
+ void *page;
+ size_t len;
+ int rc;
+
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink))
+ return PTR_ERR(tlink);
+ tcon = tlink_tcon(tlink);
+
+ page = alloc_dentry_path();
+
+ ppath = build_path_from_dentry(dentry->d_parent, page);
+ if (IS_ERR(ppath)) {
+ rc = PTR_ERR(ppath);
+ goto out;
+ }
+
+ len = strlen(ppath) + strlen("/.__smb1234") + 1;
+ to_name = kmalloc(len, GFP_KERNEL);
+ if (!to_name) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ scnprintf(to_name, len, "%s%c.__smb%04X", ppath, CIFS_DIR_SEP(cifs_sb),
+ atomic_inc_return(&sillycounter) & 0xffff);
+
+ utf16_path = utf16_smb2_path(cifs_sb, to_name, len);
+ if (!utf16_path) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ drop_cached_dir_by_name(xid, tcon, full_path, cifs_sb);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
+ DELETE | FILE_WRITE_ATTRIBUTES,
+ FILE_OPEN, co, ACL_NO_MODE);
+
+ attrs &= ~ATTR_READONLY;
+ if (!attrs)
+ attrs = ATTR_NORMAL;
+ if (d_inode(dentry)->i_nlink <= 1)
+ attrs |= ATTR_HIDDEN;
+ iov[0].iov_base = &(FILE_BASIC_INFO) {
+ .Attributes = cpu_to_le32(attrs),
+ };
+ iov[0].iov_len = sizeof(FILE_BASIC_INFO);
+ iov[1].iov_base = utf16_path;
+ iov[1].iov_len = sizeof(*utf16_path) * UniStrlen((wchar_t *)utf16_path);
+
+ cifs_get_writable_path(tcon, full_path, FIND_WR_WITH_DELETE, &cfile);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, &oparms, iov,
+ cmds, num_cmds, cfile, NULL, NULL, dentry);
+ if (rc == -EINVAL) {
+ cifs_dbg(FYI, "invalid lease key, resending request without lease\n");
+ cifs_get_writable_path(tcon, full_path,
+ FIND_WR_WITH_DELETE, &cfile);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, &oparms, iov,
+ cmds, num_cmds, cfile, NULL, NULL, NULL);
+ }
+ if (!rc) {
+ set_bit(CIFS_INO_DELETE_PENDING, &cinode->flags);
+ } else {
+ cifs_tcon_dbg(FYI, "%s: failed to rename '%s' to '%s': %d\n",
+ __func__, full_path, to_name, rc);
+ rc = -EIO;
+ }
+out:
+ cifs_put_tlink(tlink);
+ free_dentry_path(page);
+ return rc;
+}
.llseek = smb3_llseek,
.is_status_io_timeout = smb2_is_status_io_timeout,
.is_network_name_deleted = smb2_is_network_name_deleted,
+ .rename_pending_delete = smb2_rename_pending_delete,
};
#endif /* CIFS_ALLOW_INSECURE_LEGACY */
.llseek = smb3_llseek,
.is_status_io_timeout = smb2_is_status_io_timeout,
.is_network_name_deleted = smb2_is_network_name_deleted,
+ .rename_pending_delete = smb2_rename_pending_delete,
};
struct smb_version_operations smb30_operations = {
.llseek = smb3_llseek,
.is_status_io_timeout = smb2_is_status_io_timeout,
.is_network_name_deleted = smb2_is_network_name_deleted,
+ .rename_pending_delete = smb2_rename_pending_delete,
};
struct smb_version_operations smb311_operations = {
.llseek = smb3_llseek,
.is_status_io_timeout = smb2_is_status_io_timeout,
.is_network_name_deleted = smb2_is_network_name_deleted,
+ .rename_pending_delete = smb2_rename_pending_delete,
};
#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY
int smb2_make_nfs_node(unsigned int xid, struct inode *inode,
struct dentry *dentry, struct cifs_tcon *tcon,
const char *full_path, umode_t mode, dev_t dev);
+int smb2_rename_pending_delete(const char *full_path,
+ struct dentry *dentry,
+ const unsigned int xid);
#endif /* _SMB2PROTO_H */
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(posix_query_info_compound_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(hardlink_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(rename_enter);
-DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(rmdir_enter);
+DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(unlink_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(set_eof_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(set_info_compound_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(set_reparse_compound_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(get_reparse_compound_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(query_wsl_ea_compound_enter);
-DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(delete_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(mkdir_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(tdis_enter);
DEFINE_SMB3_INF_COMPOUND_ENTER_EVENT(mknod_enter);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(posix_query_info_compound_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(hardlink_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(rename_done);
-DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(rmdir_done);
+DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(unlink_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(set_eof_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(set_info_compound_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(set_reparse_compound_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(get_reparse_compound_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(query_wsl_ea_compound_done);
-DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(delete_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(mkdir_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(tdis_done);
DEFINE_SMB3_INF_COMPOUND_DONE_EVENT(mknod_done);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(posix_query_info_compound_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(hardlink_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(rename_err);
-DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(rmdir_err);
+DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(unlink_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(set_eof_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(set_info_compound_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(set_reparse_compound_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(get_reparse_compound_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(query_wsl_ea_compound_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(mkdir_err);
-DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(delete_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(tdis_err);
DEFINE_SMB3_INF_COMPOUND_ERR_EVENT(mknod_err);
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