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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 e888f28988
commit a2621753b2
3 changed files with 31 additions and 7 deletions
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26
config/kernel-revalidate-disk-size.m4
View File

@ -1,24 +1,46 @@
dnl # dnl #
dnl # 5.11 API change
dnl # revalidate_disk_size() has been removed entirely.
dnl #
dnl # 5.10 API change dnl # 5.10 API change
dnl # revalidate_disk() was replaced by revalidate_disk_size() dnl # revalidate_disk() was replaced by revalidate_disk_size()
dnl # 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], [ ZFS_LINUX_TEST_SRC([revalidate_disk_size], [
#include <linux/genhd.h> #include <linux/genhd.h>
], [ ], [
struct gendisk *disk = NULL; struct gendisk *disk = NULL;
(void) revalidate_disk_size(disk, false); (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]) AC_MSG_CHECKING([whether revalidate_disk_size() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([revalidate_disk_size], ZFS_LINUX_TEST_RESULT_SYMBOL([revalidate_disk_size],
[revalidate_disk_size], [block/genhd.c], [ [revalidate_disk_size], [block/genhd.c], [
AC_MSG_RESULT(yes) AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_REVALIDATE_DISK_SIZE, 1, 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) AC_MSG_RESULT(no)
]) ])
]) ])
])

4
config/kernel.m4
View File

@ -62,7 +62,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_BLKDEV ZFS_AC_KERNEL_SRC_BLKDEV
ZFS_AC_KERNEL_SRC_BLK_QUEUE ZFS_AC_KERNEL_SRC_BLK_QUEUE
ZFS_AC_KERNEL_SRC_GET_DISK_AND_MODULE ZFS_AC_KERNEL_SRC_GET_DISK_AND_MODULE
ZFS_AC_KERNEL_SRC_REVALIDATE_DISK_SIZE ZFS_AC_KERNEL_SRC_REVALIDATE_DISK
ZFS_AC_KERNEL_SRC_GET_DISK_RO ZFS_AC_KERNEL_SRC_GET_DISK_RO
ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL
ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY
@ -160,7 +160,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_BLKDEV ZFS_AC_KERNEL_BLKDEV
ZFS_AC_KERNEL_BLK_QUEUE ZFS_AC_KERNEL_BLK_QUEUE
ZFS_AC_KERNEL_GET_DISK_AND_MODULE ZFS_AC_KERNEL_GET_DISK_AND_MODULE
ZFS_AC_KERNEL_REVALIDATE_DISK_SIZE ZFS_AC_KERNEL_REVALIDATE_DISK
ZFS_AC_KERNEL_GET_DISK_RO ZFS_AC_KERNEL_GET_DISK_RO
ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL
ZFS_AC_KERNEL_DISCARD_GRANULARITY ZFS_AC_KERNEL_DISCARD_GRANULARITY

6
module/os/linux/zfs/zvol_os.c
View File

@ -658,10 +658,12 @@ zvol_update_volsize(zvol_state_t *zv, uint64_t volsize)
{ {
struct gendisk *disk = zv->zv_zso->zvo_disk; struct gendisk *disk = zv->zv_zso->zvo_disk;
#ifdef HAVE_REVALIDATE_DISK_SIZE #if defined(HAVE_REVALIDATE_DISK_SIZE)
revalidate_disk_size(disk, zvol_revalidate_disk(disk) == 0); revalidate_disk_size(disk, zvol_revalidate_disk(disk) == 0);
#else #elif defined(HAVE_REVALIDATE_DISK)
revalidate_disk(disk); revalidate_disk(disk);
#else
zvol_revalidate_disk(disk);
#endif #endif
return (0); return (0);
} }