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Linux 5.16: block_device_operations->submit_bio now returns void

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The return type for the submit_bio member of struct
block_device_operations was changed to no longer return a value.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #12819
This commit is contained in:
Coleman Kane
2021-12-02 22:54:05 -05:00
committed by Tony Hutter
parent 541fe3d598
commit 649b3ce987
2 changed files with 37 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/kernel-bio.m4
+29
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@@ -395,6 +395,33 @@ AC_DEFUN([ZFS_AC_KERNEL_BIO_BDEV_DISK], [
])
])
dnl #
dnl # Linux 5.16 API
dnl #
dnl # The Linux 5.16 API for submit_bio changed the return type to be
dnl # void instead of int
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BDEV_SUBMIT_BIO_RETURNS_VOID], [
ZFS_LINUX_TEST_SRC([bio_bdev_submit_bio_void], [
#include <linux/blkdev.h>
],[
struct block_device_operations *bdev = NULL;
__attribute__((unused)) void(*f)(struct bio *) = bdev->submit_bio;
])
])
AC_DEFUN([ZFS_AC_KERNEL_BDEV_SUBMIT_BIO_RETURNS_VOID], [
AC_MSG_CHECKING(
[whether block_device_operations->submit_bio() returns void])
ZFS_LINUX_TEST_RESULT([bio_bdev_submit_bio_void], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BDEV_SUBMIT_BIO_RETURNS_VOID, 1,
[block_device_operations->submit_bio() returns void])
],[
AC_MSG_RESULT(no)
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO], [
ZFS_AC_KERNEL_SRC_REQ
ZFS_AC_KERNEL_SRC_BIO_OPS
@@ -406,6 +433,7 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO], [
ZFS_AC_KERNEL_SRC_BIO_CURRENT_BIO_LIST
ZFS_AC_KERNEL_SRC_BLKG_TRYGET
ZFS_AC_KERNEL_SRC_BIO_BDEV_DISK
ZFS_AC_KERNEL_SRC_BDEV_SUBMIT_BIO_RETURNS_VOID
])
AC_DEFUN([ZFS_AC_KERNEL_BIO], [
@@ -428,4 +456,5 @@ AC_DEFUN([ZFS_AC_KERNEL_BIO], [
ZFS_AC_KERNEL_BIO_CURRENT_BIO_LIST
ZFS_AC_KERNEL_BLKG_TRYGET
ZFS_AC_KERNEL_BIO_BDEV_DISK
ZFS_AC_KERNEL_BDEV_SUBMIT_BIO_RETURNS_VOID
])