Merge tag 'perf-tools-fixes-for-v6.4-2-2023-05-30' into perf-tools-next

perf tools fixes for v6.4: 2nd batch

- Fix BPF CO-RE naming convention for checking the availability of fields on
  'union perf_mem_data_src' on the running kernel.

- Remove the use of llvm-strip on BPF skel object files, not needed, fixes a
  build breakage when the llvm package, that contains it in most distros, isn't
  installed.

- Fix tools that use both evsel->{bpf_counter_list,bpf_filters}, removing them from a
  union.

- Remove extra "--" from the 'perf ftrace latency' --use-nsec option,
  previously it was working only when using the '-n' alternative.

- Don't stop building when both binutils-devel and a C++ compiler isn't
  available to compile the alternative C++ demangle support code, disable that
  feature instead.

- Sync the linux/in.h and coresight-pmu.h header copies with the kernel sources.

- Fix relative include path to cs-etm.h.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/fs/smb/client/export.c b/fs/smb/client/export.c
new file mode 100644
index 000000000000..37c28415df1e
--- /dev/null
+++ b/fs/smb/client/export.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ *
+ *   Copyright (C) International Business Machines  Corp., 2007
+ *   Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ *   Common Internet FileSystem (CIFS) client
+ *
+ *   Operations related to support for exporting files via NFSD
+ *
+ */
+
+ /*
+  * See Documentation/filesystems/nfs/exporting.rst
+  * and examples in fs/exportfs
+  *
+  * Since cifs is a network file system, an "fsid" must be included for
+  * any nfs exports file entries which refer to cifs paths.  In addition
+  * the cifs mount must be mounted with the "serverino" option (ie use stable
+  * server inode numbers instead of locally generated temporary ones).
+  * Although cifs inodes do not use generation numbers (have generation number
+  * of zero) - the inode number alone should be good enough for simple cases
+  * in which users want to export cifs shares with NFS. The decode and encode
+  * could be improved by using a new routine which expects 64 bit inode numbers
+  * instead of the default 32 bit routines in fs/exportfs
+  *
+  */
+
+#include <linux/fs.h>
+#include <linux/exportfs.h>
+#include "cifsglob.h"
+#include "cifs_debug.h"
+#include "cifsfs.h"
+
+#ifdef CONFIG_CIFS_NFSD_EXPORT
+static struct dentry *cifs_get_parent(struct dentry *dentry)
+{
+	/* BB need to add code here eventually to enable export via NFSD */
+	cifs_dbg(FYI, "get parent for %p\n", dentry);
+	return ERR_PTR(-EACCES);
+}
+
+const struct export_operations cifs_export_ops = {
+	.get_parent = cifs_get_parent,
+/*	Following five export operations are unneeded so far and can default:
+	.get_dentry =
+	.get_name =
+	.find_exported_dentry =
+	.decode_fh =
+	.encode_fs =  */
+};
+
+#endif /* CONFIG_CIFS_NFSD_EXPORT */
+