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Linux 5.12 compat: bio->bi_disk member moved

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The struct bio member bi_disk was moved underneath a new member named
bi_bdev. So all attempts to reference bio->bi_disk need to now become
bio->bi_bdev->bd_disk.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #11639
This commit is contained in:
Coleman Kane
2021-02-22 21:07:51 -05:00
committed by Brian Behlendorf
parent 8e43fa12c5
commit d939930fcc
3 changed files with 37 additions and 0 deletions
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config/kernel-bio.m4
+29
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@@ -369,6 +369,33 @@ AC_DEFUN([ZFS_AC_KERNEL_BLKG_TRYGET], [
])
])
dnl #
dnl # Linux 5.12 API,
dnl #
dnl # The Linux 5.12 kernel updated struct bio to create a new bi_bdev member
dnl # and bio->bi_disk was moved to bio->bi_bdev->bd_disk
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_BDEV_DISK], [
ZFS_LINUX_TEST_SRC([bio_bdev_disk], [
#include <linux/blk_types.h>
#include <linux/blkdev.h>
],[
struct bio *b = NULL;
struct gendisk *d = b->bi_bdev->bd_disk;
blk_register_queue(d);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BIO_BDEV_DISK], [
AC_MSG_CHECKING([whether bio->bi_bdev->bd_disk exists])
ZFS_LINUX_TEST_RESULT([bio_bdev_disk], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BIO_BDEV_DISK, 1, [bio->bi_bdev->bd_disk exists])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO], [
ZFS_AC_KERNEL_SRC_REQ
ZFS_AC_KERNEL_SRC_BIO_OPS
@@ -379,6 +406,7 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO], [
ZFS_AC_KERNEL_SRC_BIO_SUBMIT_BIO
ZFS_AC_KERNEL_SRC_BIO_CURRENT_BIO_LIST
ZFS_AC_KERNEL_SRC_BLKG_TRYGET
ZFS_AC_KERNEL_SRC_BIO_BDEV_DISK
])
AC_DEFUN([ZFS_AC_KERNEL_BIO], [
@@ -400,4 +428,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BIO], [
ZFS_AC_KERNEL_BIO_SUBMIT_BIO
ZFS_AC_KERNEL_BIO_CURRENT_BIO_LIST
ZFS_AC_KERNEL_BLKG_TRYGET
ZFS_AC_KERNEL_BIO_BDEV_DISK
])