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mirror_zfs/config/kernel-genhd-flags.m4

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Linux 5.17 compat: GENHD_FL_EXT_DEVT / GENHD_FL_NO_PART_SCAN As of the 5.17 kernel the GENHD_FL_EXT_DEVT flag has been removed and the GENHD_FL_NO_PART_SCAN flag renamed GENHD_FL_NO_PART. Update zvol_alloc() to set GENHD_FL_NO_PART for the newer kernels which is sufficient. The behavior for prior kernels remains unchanged. 1ebe2e5f ("block: remove GENHD_FL_EXT_DEVT") 46e7eac6 ("block: rename GENHD_FL_NO_PART_SCAN to GENHD_FL_NO_PART") Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #13294 Closes #13297
2022-04-19 20:38:04 +03:00
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;
])
])
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)
config: rework ZFS_GENHD_FL_* Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16479
2024-08-24 15:06:22 +03:00
AC_DEFINE(HAVE_GENHD_FL_EXT_DEVT, 1,
Linux 5.17 compat: GENHD_FL_EXT_DEVT / GENHD_FL_NO_PART_SCAN As of the 5.17 kernel the GENHD_FL_EXT_DEVT flag has been removed and the GENHD_FL_NO_PART_SCAN flag renamed GENHD_FL_NO_PART. Update zvol_alloc() to set GENHD_FL_NO_PART for the newer kernels which is sufficient. The behavior for prior kernels remains unchanged. 1ebe2e5f ("block: remove GENHD_FL_EXT_DEVT") 46e7eac6 ("block: rename GENHD_FL_NO_PART_SCAN to GENHD_FL_NO_PART") Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #13294 Closes #13297
2022-04-19 20:38:04 +03:00
[GENHD_FL_EXT_DEVT flag is available])
], [
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether GENHD_FL_NO_PART flag is available])
ZFS_LINUX_TEST_RESULT([genhd_fl_no_part], [
AC_MSG_RESULT(yes)
config: rework ZFS_GENHD_FL_* Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16479
2024-08-24 15:06:22 +03:00
AC_DEFINE(HAVE_GENHD_FL_NO_PART, 1,
Linux 5.17 compat: GENHD_FL_EXT_DEVT / GENHD_FL_NO_PART_SCAN As of the 5.17 kernel the GENHD_FL_EXT_DEVT flag has been removed and the GENHD_FL_NO_PART_SCAN flag renamed GENHD_FL_NO_PART. Update zvol_alloc() to set GENHD_FL_NO_PART for the newer kernels which is sufficient. The behavior for prior kernels remains unchanged. 1ebe2e5f ("block: remove GENHD_FL_EXT_DEVT") 46e7eac6 ("block: rename GENHD_FL_NO_PART_SCAN to GENHD_FL_NO_PART") Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #13294 Closes #13297
2022-04-19 20:38:04 +03:00
[GENHD_FL_NO_PART flag is available])
], [
AC_MSG_RESULT(no)
])
])
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