55 lines
1.3 KiB
Text
55 lines
1.3 KiB
Text
|
dnl #
|
||
|
|
dnl # 2.6.32-2.6.35 API - The BIO_RW_UNPLUG enum can be used as a hint
|
||
|
|
dnl # to unplug the queue.
|
||
|
|
dnl #
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG], [
|
||
|
|
ZFS_LINUX_TEST_SRC([blk_queue_bio_rw_unplug], [
|
||
|
|
#include <linux/blkdev.h>
|
||
|
|
],[
|
||
|
|
enum bio_rw_flags rw __attribute__ ((unused)) = BIO_RW_UNPLUG;
|
||
|
|
])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_UNPLUG], [
|
||
|
|
AC_MSG_CHECKING([whether the BIO_RW_UNPLUG enum is available])
|
||
|
|
ZFS_LINUX_TEST_RESULT([blk_queue_bio_rw_unplug], [
|
||
|
|
AC_MSG_RESULT(yes)
|
||
|
|
AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BIO_RW_UNPLUG, 1,
|
||
|
|
[BIO_RW_UNPLUG is available])
|
||
|
|
],[
|
||
|
|
AC_MSG_RESULT(no)
|
||
|
|
])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_PLUG], [
|
||
|
|
ZFS_LINUX_TEST_SRC([blk_plug], [
|
||
|
|
#include <linux/blkdev.h>
|
||
|
|
],[
|
||
|
|
struct blk_plug plug __attribute__ ((unused));
|
||
|
|
|
||
|
|
blk_start_plug(&plug);
|
||
|
|
blk_finish_plug(&plug);
|
||
|
|
])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_BLK_PLUG], [
|
||
|
|
AC_MSG_CHECKING([whether struct blk_plug is available])
|
||
|
|
ZFS_LINUX_TEST_RESULT([blk_plug], [
|
||
|
|
AC_MSG_RESULT(yes)
|
||
|
|
AC_DEFINE(HAVE_BLK_QUEUE_HAVE_BLK_PLUG, 1,
|
||
|
|
[struct blk_plug is available])
|
||
|
|
],[
|
||
|
|
AC_MSG_RESULT(no)
|
||
|
|
])
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLK_QUEUE_PLUG], [
|
||
|
|
ZFS_AC_KERNEL_SRC_BIO_RW_UNPLUG
|
||
|
|
ZFS_AC_KERNEL_SRC_BLK_PLUG
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_PLUG], [
|
||
|
|
ZFS_AC_KERNEL_BIO_RW_UNPLUG
|
||
|
|
ZFS_AC_KERNEL_BLK_PLUG
|
||
|
|
])
|