statx: add Linux 6.11 fields/constants

As of Linux 6.11, these fields and mask macros have been added to
include/uapi/linux/stat.h.

include/sys/stat.h

@@ -123,6 +123,8 @@ int lchmod(const char *, mode_t);
 #define STATX_MNT_ID 0x1000U
 #define STATX_DIOALIGN 0x2000U
 #define STATX_MNT_ID_UNIQUE 0x4000U
+#define STATX_SUBVOL 0x8000U
+#define STATX_WRITE_ATOMIC 0x10000U
 
 #define STATX_ATTR_COMPRESSED 0x4
 #define STATX_ATTR_IMMUTABLE 0x10
@@ -133,6 +135,7 @@ int lchmod(const char *, mode_t);
 #define STATX_ATTR_MOUNT_ROOT 0x2000
 #define STATX_ATTR_VERITY 0x100000
 #define STATX_ATTR_DAX 0x200000
+#define STATX_ATTR_WRITE_ATOMIC 0x400000
 
 struct statx_timestamp {
 	int64_t tv_sec;
@@ -164,7 +167,12 @@ struct statx {
 	uint32_t stx_dio_mem_align;
 	uint32_t stx_dio_offset_align;
 	uint64_t stx_subvol;
-	uint64_t __pad1[11];
+	uint32_t stx_atomic_write_unit_min;
+	uint32_t stx_atomic_write_unit_max;
+	uint32_t stx_atomic_write_segments_max;
+	uint32_t __pad1[1];
+	uint64_t __pad2[9];
+
 };
 
 int statx(int, const char *__restrict, int, unsigned, struct statx *__restrict);