linux-kernel - [PATCH 03/11] tools headers: Sync UAPI linux/fcntl.h with kernel sources

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Message-ID: <20251222225716.3565649-3-namhyung@kernel.org>
Date: Mon, 22 Dec 2025 14:57:08 -0800
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Ian Rogers <irogers@...gle.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	James Clark <james.clark@...aro.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 03/11] tools headers: Sync UAPI linux/fcntl.h with kernel sources

To pick up changes from:

  fe93446b5ebdaa89 ("vfs: use UAPI types for new struct delegation definition")
  4be9e04ebf75a5c4 ("vfs: add needed headers for new struct delegation definition")
  1602bad16d7df82f ("vfs: expose delegation support to userland")

This should be used to beautify fcntl syscall arguments and it addresses
these tools/perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/perf/trace/beauty/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h

Please see tools/include/README.kernel-copies.

Cc: linux-fsdevel@...r.kernel.org
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/trace/beauty/include/uapi/linux/fcntl.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tools/perf/trace/beauty/include/uapi/linux/fcntl.h b/tools/perf/trace/beauty/include/uapi/linux/fcntl.h
index 3741ea1b73d85000..aadfbf6e0cb3a004 100644
--- a/tools/perf/trace/beauty/include/uapi/linux/fcntl.h
+++ b/tools/perf/trace/beauty/include/uapi/linux/fcntl.h
@@ -4,6 +4,7 @@
 
 #include <asm/fcntl.h>
 #include <linux/openat2.h>
+#include <linux/types.h>
 
 #define F_SETLEASE	(F_LINUX_SPECIFIC_BASE + 0)
 #define F_GETLEASE	(F_LINUX_SPECIFIC_BASE + 1)
@@ -79,6 +80,17 @@
  */
 #define RWF_WRITE_LIFE_NOT_SET	RWH_WRITE_LIFE_NOT_SET
 
+/* Set/Get delegations */
+#define F_GETDELEG		(F_LINUX_SPECIFIC_BASE + 15)
+#define F_SETDELEG		(F_LINUX_SPECIFIC_BASE + 16)
+
+/* Argument structure for F_GETDELEG and F_SETDELEG */
+struct delegation {
+	__u32	d_flags;	/* Must be 0 */
+	__u16	d_type;		/* F_RDLCK, F_WRLCK, F_UNLCK */
+	__u16	__pad;		/* Must be 0 */
+};
+
 /*
  * Types of directory notifications that may be requested.
  */
-- 
2.52.0.351.gbe84eed79e-goog