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Linux 5.10 compat: revalidate_disk_size() added 

A new function was added named revalidate_disk_size() and the old
revalidate_disk() appears to have been deprecated. As the only ZFS
code that calls this function is zvol_update_volsize, swapping the
old function call out for the new one should be all that is required.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #11085
This commit is contained in:
Coleman Kane 2020-10-18 13:06:18 -04:00 committed by Brian Behlendorf
parent ae15f1c1d8
commit 59b6872327
3 changed files with 30 additions and 0 deletions
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24
config/kernel-revalidate-disk-size.m4 Normal file
View File

@ -0,0 +1,24 @@
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], [
ZFS_LINUX_TEST_SRC([revalidate_disk_size], [
#include <linux/genhd.h>
], [
struct gendisk *disk = NULL;
(void) revalidate_disk_size(disk, false);
])
])
AC_DEFUN([ZFS_AC_KERNEL_REVALIDATE_DISK_SIZE], [
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])
], [
AC_MSG_RESULT(no)
])
])

2
config/kernel.m4
View File

@ -62,6 +62,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_BLKDEV
ZFS_AC_KERNEL_SRC_BLK_QUEUE
ZFS_AC_KERNEL_SRC_GET_DISK_AND_MODULE
ZFS_AC_KERNEL_SRC_REVALIDATE_DISK_SIZE
ZFS_AC_KERNEL_SRC_GET_DISK_RO
ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL
ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY
@ -158,6 +159,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_BLKDEV
ZFS_AC_KERNEL_BLK_QUEUE
ZFS_AC_KERNEL_GET_DISK_AND_MODULE
ZFS_AC_KERNEL_REVALIDATE_DISK_SIZE
ZFS_AC_KERNEL_GET_DISK_RO
ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL
ZFS_AC_KERNEL_DISCARD_GRANULARITY

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

@ -656,7 +656,11 @@ static int
zvol_update_volsize(zvol_state_t *zv, uint64_t volsize)
{
#ifdef HAVE_REVALIDATE_DISK_SIZE
revalidate_disk_size(zv->zv_zso->zvo_disk, false);
#else
revalidate_disk(zv->zv_zso->zvo_disk);
#endif
return (0);
}