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Linux 5.11 compat: revalidate_disk_size()

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Both revalidate_disk_size() and revalidate_disk() have been removed.
Functionally this isn't a problem because we only relied on these
functions to call zvol_revalidate_disk() for us and to perform any
additional handling which might be needed for that kernel version.
When neither are available we know there's no additional handling
needed and we can directly call zvol_revalidate_disk().

Reviewed-by: Rafael Kitover <rkitover@gmail.com>
Reviewed-by: Coleman Kane <ckane@colemankane.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11387
Closes #11390
This commit is contained in:
Brian Behlendorf
2020-12-22 13:53:25 -08:00
parent 72ba4b2a4c
commit 19697e4545
3 changed files with 31 additions and 7 deletions
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config/kernel-revalidate-disk-size.m4
+25 -3
View File
@@ -1,24 +1,46 @@
dnl #
dnl # 5.11 API change
dnl # revalidate_disk_size() has been removed entirely.
dnl #
dnl # 5.10 API change
dnl # revalidate_disk() was replaced by revalidate_disk_size()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_REVALIDATE_DISK_SIZE], [
AC_DEFUN([ZFS_AC_KERNEL_SRC_REVALIDATE_DISK], [
ZFS_LINUX_TEST_SRC([revalidate_disk_size], [
#include <linux/genhd.h>
], [
struct gendisk *disk = NULL;
(void) revalidate_disk_size(disk, false);
])
ZFS_LINUX_TEST_SRC([revalidate_disk], [
#include <linux/genhd.h>
], [
struct gendisk *disk = NULL;
(void) revalidate_disk(disk);
])
])
AC_DEFUN([ZFS_AC_KERNEL_REVALIDATE_DISK_SIZE], [
AC_DEFUN([ZFS_AC_KERNEL_REVALIDATE_DISK], [
AC_MSG_CHECKING([whether revalidate_disk_size() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([revalidate_disk_size],
[revalidate_disk_size], [block/genhd.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REVALIDATE_DISK_SIZE, 1,
[revalidate_disk_size() is available])
[revalidate_disk_size() is available])
], [
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether revalidate_disk() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([revalidate_disk],
[revalidate_disk], [block/genhd.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REVALIDATE_DISK, 1,
[revalidate_disk() is available])
], [
AC_MSG_RESULT(no)
])
])
])