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-rw-r--r--config/kernel-genhd-flags.m458
1 files changed, 58 insertions, 0 deletions
diff --git a/config/kernel-genhd-flags.m4 b/config/kernel-genhd-flags.m4
new file mode 100644
index 000000000..af6a8a086
--- /dev/null
+++ b/config/kernel-genhd-flags.m4
@@ -0,0 +1,58 @@
+dnl #
+dnl # 5.17 API change,
+dnl #
+dnl # GENHD_FL_EXT_DEVT flag removed
+dnl # GENHD_FL_NO_PART_SCAN renamed GENHD_FL_NO_PART
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_SRC_GENHD_FLAGS], [
+
+ ZFS_LINUX_TEST_SRC([genhd_fl_ext_devt], [
+ #include <linux/blkdev.h>
+ ], [
+ int flags __attribute__ ((unused)) = GENHD_FL_EXT_DEVT;
+ ])
+
+ ZFS_LINUX_TEST_SRC([genhd_fl_no_part], [
+ #include <linux/blkdev.h>
+ ], [
+ int flags __attribute__ ((unused)) = GENHD_FL_NO_PART;
+ ])
+
+ ZFS_LINUX_TEST_SRC([genhd_fl_no_part_scan], [
+ #include <linux/blkdev.h>
+ ], [
+ int flags __attribute__ ((unused)) = GENHD_FL_NO_PART_SCAN;
+ ])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_GENHD_FLAGS], [
+
+ AC_MSG_CHECKING([whether GENHD_FL_EXT_DEVT flag is available])
+ ZFS_LINUX_TEST_RESULT([genhd_fl_ext_devt], [
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(ZFS_GENHD_FL_EXT_DEVT, GENHD_FL_EXT_DEVT,
+ [GENHD_FL_EXT_DEVT flag is available])
+ ], [
+ AC_MSG_RESULT(no)
+ AC_DEFINE(ZFS_GENHD_FL_EXT_DEVT, 0,
+ [GENHD_FL_EXT_DEVT flag is not available])
+ ])
+
+ AC_MSG_CHECKING([whether GENHD_FL_NO_PART flag is available])
+ ZFS_LINUX_TEST_RESULT([genhd_fl_no_part], [
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(ZFS_GENHD_FL_NO_PART, GENHD_FL_NO_PART,
+ [GENHD_FL_NO_PART flag is available])
+ ], [
+ AC_MSG_RESULT(no)
+
+ AC_MSG_CHECKING([whether GENHD_FL_NO_PART_SCAN flag is available])
+ ZFS_LINUX_TEST_RESULT([genhd_fl_no_part_scan], [
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(ZFS_GENHD_FL_NO_PART, GENHD_FL_NO_PART_SCAN,
+ [GENHD_FL_NO_PART_SCAN flag is available])
+ ], [
+ ZFS_LINUX_TEST_ERROR([GENHD_FL_NO_PART|GENHD_FL_NO_PART_SCAN])
+ ])
+ ])
+])