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Linux 4.16 compat: get_disk_and_module()

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As of https://github.com/torvalds/linux/commit/fb6d47a, get_disk()
is now get_disk_and_module(). Add a configure check to determine
if we need to use get_disk_and_module().

Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #7264
This commit is contained in:
Giuseppe Di Natale
2018-03-05 12:44:35 -08:00
committed by Tony Hutter
parent 6dc40e2ada
commit 8d7f17798d
4 changed files with 29 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/kernel-get-disk-and-module.m4
+19
View File
@@ -0,0 +1,19 @@
dnl #
dnl # 4.16 API change
dnl # Verify if get_disk_and_module() symbol is available.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_GET_DISK_AND_MODULE],
[AC_MSG_CHECKING([whether get_disk_and_module() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/genhd.h>
], [
struct gendisk *disk = NULL;
(void) get_disk_and_module(disk);
], [get_disk_and_module], [block/genhd.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GET_DISK_AND_MODULE,
1, [get_disk_and_module() is available])
], [
AC_MSG_RESULT(no)
])
])
config/kernel.m4
+1
View File
@@ -40,6 +40,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS
ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BIO_RW_UNPLUG
ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BLK_PLUG
ZFS_AC_KERNEL_GET_DISK_AND_MODULE
ZFS_AC_KERNEL_GET_DISK_RO
ZFS_AC_KERNEL_GET_GENDISK
ZFS_AC_KERNEL_HAVE_BIO_SET_OP_ATTRS