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Linux 5.12 compat: bio->bi_disk member moved 

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 fe77c48320
commit a0eb5a77a0
3 changed files with 37 additions and 0 deletions
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29
config/kernel-bio.m4
View File

@ -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
])

4
module/os/linux/zfs/vdev_disk.c
View File

@ -499,7 +499,11 @@ vdev_blkg_tryget(struct blkcg_gq *blkg)
static inline void
vdev_bio_associate_blkg(struct bio *bio)
{
#if defined(HAVE_BIO_BDEV_DISK)
struct request_queue *q = bio->bi_bdev->bd_disk->queue;
#else
struct request_queue *q = bio->bi_disk->queue;
#endif
ASSERT3P(q, !=, NULL);
ASSERT3P(bio->bi_blkg, ==, NULL);

4
module/os/linux/zfs/zvol_os.c
View File

@ -307,7 +307,11 @@ zvol_request(struct request_queue *q, struct bio *bio)
#endif
{
#ifdef HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS
#if defined(HAVE_BIO_BDEV_DISK)
struct request_queue *q = bio->bi_bdev->bd_disk->queue;
#else
struct request_queue *q = bio->bi_disk->queue;
#endif
#endif
zvol_state_t *zv = q->queuedata;
fstrans_cookie_t cookie = spl_fstrans_mark();