nfs_common: make include/linux/nfs4.h include generated nfs4_1.h

In the long run, the NFS development community intends to autogenerate a
lot of the XDR handling code.  Both the NFS client and server include
"include/linux/nfs4.hi". That file was hand-rolled, and some of the symbols
in it conflict with the autogenerated symbols.

Add a small nfs4_1.x to Documentation that currently just has the
necessary definitions for the delstid draft, and generate the relevant
header and source files. Make include/linux/nfs4.h include the generated
include/linux/sunrpc/xdrgen/nfs4_1.h and remove the conflicting
definitions from it and nfs_xdr.h.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

3 files changed, 125 insertions, 11 deletions

diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 8d7430d9f218..b90719244775 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -17,6 +17,7 @@
 #include <linux/uidgid.h>
 #include <uapi/linux/nfs4.h>
 #include <linux/sunrpc/msg_prot.h>
+#include <linux/sunrpc/xdrgen/nfs4_1.h>
 
 enum nfs4_acl_whotype {
 	NFS4_ACL_WHO_NAMED = 0,
@@ -512,12 +513,6 @@ enum {
 	FATTR4_XATTR_SUPPORT		= 82,
 };
 
-enum {
-	FATTR4_TIME_DELEG_ACCESS	= 84,
-	FATTR4_TIME_DELEG_MODIFY	= 85,
-	FATTR4_OPEN_ARGUMENTS		= 86,
-};
-
 /*
  * The following internal definitions enable processing the above
  * attribute bits within 32-bit word boundaries.
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 559273a0f16d..e74a87bb18a4 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1315,11 +1315,6 @@ struct nfs4_fsid_present_res {
 
 #endif /* CONFIG_NFS_V4 */
 
-struct nfstime4 {
-	u64	seconds;
-	u32	nseconds;
-};
-
 #ifdef CONFIG_NFS_V4_1
 
 struct pnfs_commit_bucket {
diff --git a/include/linux/sunrpc/xdrgen/nfs4_1.h b/include/linux/sunrpc/xdrgen/nfs4_1.h
new file mode 100644
index 000000000000..6025ab6b7398
--- /dev/null
+++ b/include/linux/sunrpc/xdrgen/nfs4_1.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Generated by xdrgen. Manual edits will be lost. */
+/* XDR specification file: ../../Documentation/sunrpc/xdr/nfs4_1.x */
+/* XDR specification modification time: Thu Oct  3 11:30:59 2024 */
+
+#ifndef _LINUX_XDRGEN_NFS4_1_DEF_H
+#define _LINUX_XDRGEN_NFS4_1_DEF_H
+
+#include <linux/types.h>
+#include <linux/sunrpc/xdrgen/_defs.h>
+
+typedef s64 int64_t;
+
+typedef u32 uint32_t;
+
+typedef struct {
+	u32 count;
+	uint32_t *element;
+} bitmap4;
+
+struct nfstime4 {
+	int64_t seconds;
+	uint32_t nseconds;
+};
+
+typedef bool fattr4_offline;
+
+enum { FATTR4_OFFLINE = 83 };
+
+struct open_arguments4 {
+	bitmap4 oa_share_access;
+	bitmap4 oa_share_deny;
+	bitmap4 oa_share_access_want;
+	bitmap4 oa_open_claim;
+	bitmap4 oa_create_mode;
+};
+
+enum open_args_share_access4 {
+	OPEN_ARGS_SHARE_ACCESS_READ = 1,
+	OPEN_ARGS_SHARE_ACCESS_WRITE = 2,
+	OPEN_ARGS_SHARE_ACCESS_BOTH = 3,
+};
+typedef enum open_args_share_access4 open_args_share_access4;
+
+enum open_args_share_deny4 {
+	OPEN_ARGS_SHARE_DENY_NONE = 0,
+	OPEN_ARGS_SHARE_DENY_READ = 1,
+	OPEN_ARGS_SHARE_DENY_WRITE = 2,
+	OPEN_ARGS_SHARE_DENY_BOTH = 3,
+};
+typedef enum open_args_share_deny4 open_args_share_deny4;
+
+enum open_args_share_access_want4 {
+	OPEN_ARGS_SHARE_ACCESS_WANT_ANY_DELEG = 3,
+	OPEN_ARGS_SHARE_ACCESS_WANT_NO_DELEG = 4,
+	OPEN_ARGS_SHARE_ACCESS_WANT_CANCEL = 5,
+	OPEN_ARGS_SHARE_ACCESS_WANT_SIGNAL_DELEG_WHEN_RESRC_AVAIL = 17,
+	OPEN_ARGS_SHARE_ACCESS_WANT_PUSH_DELEG_WHEN_UNCONTENDED = 18,
+	OPEN_ARGS_SHARE_ACCESS_WANT_DELEG_TIMESTAMPS = 20,
+	OPEN_ARGS_SHARE_ACCESS_WANT_OPEN_XOR_DELEGATION = 21,
+};
+typedef enum open_args_share_access_want4 open_args_share_access_want4;
+
+enum open_args_open_claim4 {
+	OPEN_ARGS_OPEN_CLAIM_NULL = 0,
+	OPEN_ARGS_OPEN_CLAIM_PREVIOUS = 1,
+	OPEN_ARGS_OPEN_CLAIM_DELEGATE_CUR = 2,
+	OPEN_ARGS_OPEN_CLAIM_DELEGATE_PREV = 3,
+	OPEN_ARGS_OPEN_CLAIM_FH = 4,
+	OPEN_ARGS_OPEN_CLAIM_DELEG_CUR_FH = 5,
+	OPEN_ARGS_OPEN_CLAIM_DELEG_PREV_FH = 6,
+};
+typedef enum open_args_open_claim4 open_args_open_claim4;
+
+enum open_args_createmode4 {
+	OPEN_ARGS_CREATEMODE_UNCHECKED4 = 0,
+	OPEN_ARGS_CREATE_MODE_GUARDED = 1,
+	OPEN_ARGS_CREATEMODE_EXCLUSIVE4 = 2,
+	OPEN_ARGS_CREATE_MODE_EXCLUSIVE4_1 = 3,
+};
+typedef enum open_args_createmode4 open_args_createmode4;
+
+typedef struct open_arguments4 fattr4_open_arguments;
+
+enum { FATTR4_OPEN_ARGUMENTS = 86 };
+
+enum { OPEN4_SHARE_ACCESS_WANT_OPEN_XOR_DELEGATION = 0x200000 };
+
+enum { OPEN4_RESULT_NO_OPEN_STATEID = 0x00000010 };
+
+typedef struct nfstime4 fattr4_time_deleg_access;
+
+typedef struct nfstime4 fattr4_time_deleg_modify;
+
+enum { FATTR4_TIME_DELEG_ACCESS = 84 };
+
+enum { FATTR4_TIME_DELEG_MODIFY = 85 };
+
+enum { OPEN4_SHARE_ACCESS_WANT_DELEG_TIMESTAMPS = 0x100000 };
+
+#define NFS4_int64_t_sz                 \
+	(XDR_hyper)
+#define NFS4_uint32_t_sz                \
+	(XDR_unsigned_int)
+#define NFS4_bitmap4_sz                 (XDR_unsigned_int)
+#define NFS4_nfstime4_sz                \
+	(NFS4_int64_t_sz + NFS4_uint32_t_sz)
+#define NFS4_fattr4_offline_sz          \
+	(XDR_bool)
+#define NFS4_open_arguments4_sz         \
+	(NFS4_bitmap4_sz + NFS4_bitmap4_sz + NFS4_bitmap4_sz + NFS4_bitmap4_sz + NFS4_bitmap4_sz)
+#define NFS4_open_args_share_access4_sz (XDR_int)
+#define NFS4_open_args_share_deny4_sz   (XDR_int)
+#define NFS4_open_args_share_access_want4_sz (XDR_int)
+#define NFS4_open_args_open_claim4_sz   (XDR_int)
+#define NFS4_open_args_createmode4_sz   (XDR_int)
+#define NFS4_fattr4_open_arguments_sz   \
+	(NFS4_open_arguments4_sz)
+#define NFS4_fattr4_time_deleg_access_sz \
+	(NFS4_nfstime4_sz)
+#define NFS4_fattr4_time_deleg_modify_sz \
+	(NFS4_nfstime4_sz)
+
+#endif /* _LINUX_XDRGEN_NFS4_1_DEF_H */