[mirror_zfs.git] / config / kernel-blkdev-get-by-path.m4

dnl #
dnl # 2.6.38 API change
dnl # open_bdev_exclusive() changed to blkdev_get_by_path()
dnl # close_bdev_exclusive() changed to blkdev_put()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH],
	[AC_MSG_CHECKING([whether blkdev_get_by_path() is available])
	ZFS_LINUX_TRY_COMPILE_SYMBOL([
		#include <linux/fs.h>
	], [
		blkdev_get_by_path(NULL, 0, NULL);
	], [blkdev_get_by_path], [fs/block_dev.c], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
		          [blkdev_get_by_path() is available])
	], [
		AC_MSG_RESULT(no)
	])
])
Commit	Line	Data
45066d1f BB	1	dnl #
	2	dnl # 2.6.38 API change
	3	dnl # open_bdev_exclusive() changed to blkdev_get_by_path()
	4	dnl # close_bdev_exclusive() changed to blkdev_put()
	5	dnl #
70574182 ED	6	AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH],
	7	[AC_MSG_CHECKING([whether blkdev_get_by_path() is available])
	8	ZFS_LINUX_TRY_COMPILE_SYMBOL([
	9	#include <linux/fs.h>
	10	], [
	11	blkdev_get_by_path(NULL, 0, NULL);
	12	], [blkdev_get_by_path], [fs/block_dev.c], [
	13	AC_MSG_RESULT(yes)
	14	AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
	15	[blkdev_get_by_path() is available])
	16	], [
	17	AC_MSG_RESULT(no)
	18	])
45066d1f	19	])