mirror_zfs/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], [
	ZFS_CHECK_SYMBOL_EXPORT(
		[blkdev_get_by_path],
		[fs/block_dev.c],
		[AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,
		[blkdev_get_by_path() is available])],
		[])
])
Linux 2.6.38 compat, blkdev_get_by_path() The open_bdev_exclusive() function has been replaced (again) by the more generic blkdev_get_by_path() function. Additionally, the counterpart function close_bdev_exclusive() has been replaced by blkdev_put(). Because these functions are more generic versions of the functions they replaced the compatibility macro must add the FMODE_EXCL mask to ensure they are exclusive. Closes #114 2011-02-23 01:55:35 +03:00			`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], [`
			`ZFS_CHECK_SYMBOL_EXPORT(`
			`[blkdev_get_by_path],`
			`[fs/block_dev.c],`
			`[AC_DEFINE(HAVE_BLKDEV_GET_BY_PATH, 1,`
			`[blkdev_get_by_path() is available])],`
			`[])`
			`])`