54 lines
1.3 KiB
Text
54 lines
1.3 KiB
Text
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dnl #
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dnl # Linux 4.14 API,
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dnl #
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dnl # The bio_set_dev() helper macro was introduced as part of the transition
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dnl # to have struct gendisk in struct bio.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV_MACRO], [
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AC_MSG_CHECKING([whether bio_set_dev() exists])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/bio.h>
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#include <linux/fs.h>
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],[
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struct block_device *bdev = NULL;
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struct bio *bio = NULL;
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bio_set_dev(bio, bdev);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_SET_DEV, 1, [bio_set_dev() exists])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # Linux 5.0 API,
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dnl #
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dnl # The bio_set_dev() helper macro was updated to internally depend on
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dnl # bio_associate_blkg() symbol which is exported GPL-only.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV_GPL_ONLY], [
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AC_MSG_CHECKING([whether bio_set_dev() is GPL-only])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/module.h>
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#include <linux/bio.h>
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#include <linux/fs.h>
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MODULE_LICENSE("$ZFS_META_LICENSE");
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],[
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struct block_device *bdev = NULL;
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struct bio *bio = NULL;
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bio_set_dev(bio, bdev);
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],[
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AC_MSG_RESULT(no)
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_SET_DEV_GPL_ONLY, 1,
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[bio_set_dev() GPL-only])
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_BIO_SET_DEV], [
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ZFS_AC_KERNEL_BIO_SET_DEV_MACRO
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ZFS_AC_KERNEL_BIO_SET_DEV_GPL_ONLY
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])
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