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Linux 6.6 compat: fsync_bdev() has been removed in favor of sync_blockdev()

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In Linux commit 560e20e4bf6484a0c12f9f3c7a1aa55056948e1e, the
fsync_bdev() function was removed in favor of sync_blockdev() to do
(roughly) the same thing, given the same input. This change
conditionally attempts to call sync_blockdev() if fsync_bdev() isn't
discovered during configure.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #15263
(cherry picked from commit 3f67e012e4)
This commit is contained in:
Coleman Kane
2023-09-15 01:07:03 -04:00
committed by Tony Hutter
parent b8bf99cca9
commit e68922faaa
3 changed files with 44 additions and 0 deletions
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config/kernel-fsync-bdev.m4
+36
View File
@@ -0,0 +1,36 @@
dnl #
dnl # 6.6 API change,
dnl # fsync_bdev was removed in favor of sync_blockdev
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_SYNC_BDEV], [
ZFS_LINUX_TEST_SRC([fsync_bdev], [
#include <linux/blkdev.h>
],[
fsync_bdev(NULL);
])
ZFS_LINUX_TEST_SRC([sync_blockdev], [
#include <linux/blkdev.h>
],[
sync_blockdev(NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_SYNC_BDEV], [
AC_MSG_CHECKING([whether fsync_bdev() exists])
ZFS_LINUX_TEST_RESULT([fsync_bdev], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FSYNC_BDEV, 1,
[fsync_bdev() is declared in include/blkdev.h])
],[
AC_MSG_CHECKING([whether sync_blockdev() exists])
ZFS_LINUX_TEST_RESULT([sync_blockdev], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SYNC_BLOCKDEV, 1,
[sync_blockdev() is declared in include/blkdev.h])
],[
ZFS_LINUX_TEST_ERROR(
[neither fsync_bdev() nor sync_blockdev() exist])
])
])
])
config/kernel.m4
+2
View File
@@ -150,6 +150,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_RECLAIMED
ZFS_AC_KERNEL_SRC_REGISTER_SYSCTL_TABLE
ZFS_AC_KERNEL_SRC_COPY_SPLICE_READ
ZFS_AC_KERNEL_SRC_SYNC_BDEV
case "$host_cpu" in
powerpc*)
ZFS_AC_KERNEL_SRC_CPU_HAS_FEATURE
@@ -279,6 +280,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_RECLAIMED
ZFS_AC_KERNEL_REGISTER_SYSCTL_TABLE
ZFS_AC_KERNEL_COPY_SPLICE_READ
ZFS_AC_KERNEL_SYNC_BDEV
case "$host_cpu" in
powerpc*)
ZFS_AC_KERNEL_CPU_HAS_FEATURE