mirror_zfs/config/kernel-blkdev-reread-part.m4
Coleman Kane 70719549f0 Linux 5.9 compat: add linux/blkdev.h include
Many of the block device operations (often functions with bdev in
the name) were moved into linux/blkdev.h from linux/fs.h. Seems
that this header is already included where needed in the code, but
in the autoconf tests it was missing causing false negatives. This
commit has those tests include linux/fs.h (old location) and now
also linux/blkdev.h (new locations).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #10696
(cherry picked from commit 1823c8fe6a)
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
2020-09-15 21:16:58 +00:00

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dnl #
dnl # 4.1 API, exported blkdev_reread_part() symbol, backported to the
dnl # 3.10.0 CentOS 7.x enterprise kernels.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_REREAD_PART], [
ZFS_LINUX_TEST_SRC([blkdev_reread_part], [
#include <linux/fs.h>
#include <linux/blkdev.h>
], [
struct block_device *bdev = NULL;
int error;
error = blkdev_reread_part(bdev);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_REREAD_PART], [
AC_MSG_CHECKING([whether blkdev_reread_part() is available])
ZFS_LINUX_TEST_RESULT([blkdev_reread_part], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLKDEV_REREAD_PART, 1,
[blkdev_reread_part() is available])
], [
AC_MSG_RESULT(no)
])
])