stress-file-ioctl: add FS_IOC_GETFSSYSFSPATH ioctl

This appears in Linux 6.8

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>

Makefile.config

@@ -1397,7 +1397,7 @@ types: \
 	PTHREAD_MUTEXATTR_T PTRACE_REQUEST RLIMIT_RESOURCE_T RUSAGE_WHO CDROM_BLK \
 	CDROM_MCN CDROM_MSF CDROM_READ_AUDIO CDROM_SUBCHNL CDROM_TI CDROM_TOCENTRY \
 	CDROM_TOCHDR CDROM_VOLCTRL CONSOLEFONTDESC DIRENT_D_TYPE DM_IOCTL FLOPPY_FDC_STATE \
-	FLOPPY_DRIVE_STRUCT FLOPPY_STRUCT FLOPPY_WRITE_ERRORS FSVERITY_DIGEST \
+	FLOPPY_DRIVE_STRUCT FLOPPY_STRUCT FLOPPY_WRITE_ERRORS FS_SYSFS_PATH FSVERITY_DIGEST \
 	FSVERITY_ENABLE_ARG FSXATTR_STRUCT IFCONF IFREQ ICMPHDR IPHDR KBDIACRS KBENTRY \
 	KBKEYCODE KBSENTRY LANDLOCK_RULESET_ATTR MEDIA_DEVICE_INFO MSGINFO \
 	MTRR_GENTRY MTRR_SENTRY OPEN_HOW RTC_PARAM RUSAGE_RU_MAXRSS \
@@ -1558,6 +1558,9 @@ FLOPPY_STRUCT:
 FLOPPY_WRITE_ERRORS:
 	$(call check,test-floppy_write_errors,HAVE_FLOPPY_WRITE_ERRORS,struct floppy_write_errors)
 
+FS_SYSFS_PATH:
+	$(call check,test-fs_sysfs_path,HAVE_FS_SYSFS_PATH,struct fs_sysfs_path)
+
 FSVERITY_DIGEST:
 	$(call check,test-fsverity_digest,HAVE_FSVERITY_DIGEST,struct fsverity_digest)
 

stress-file-ioctl.c

@@ -527,6 +527,18 @@ static int stress_file_ioctl(stress_args_t *args)
 #else
 		UNEXPECTED
 #endif
+
+#if defined(FS_IOC_GETFSSYSFSPATH) &&	\
+    defined(HAVE_FS_SYSFS_PATH)
+		{
+			struct fs_sysfs_path	sysfs_path;
+
+			(void)memset(&sysfs_path, 0, sizeof(sysfs_path));
+
+			VOID_RET(int, ioctl(fd, FS_IOC_GETFSSYSFSPATH, &sysfs_path));
+		}
+#endif
+
 		if (!exercised) {	/* cppcheck-suppress knownConditionTrueFalse */
 			pr_inf("%s: no available file ioctls to exercise\n",
 				args->name);

test/test-fs_sysfs_path.c

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2024      Colin Ian King
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include <linux/fs.h>
+
+int main(void)
+{
+	struct fs_sysfs_path path;
+
+	return sizeof(path);
+}