zfs/config/kernel-open-bdev-exclusive.m4

dnl #
dnl # 2.6.28 API change
dnl # open/close_bdev_excl() renamed to open/close_bdev_exclusive()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_OPEN_BDEV_EXCLUSIVE], [
	ZFS_CHECK_SYMBOL_EXPORT(
		[open_bdev_exclusive],
		[fs/block_dev.c],
		[AC_DEFINE(HAVE_OPEN_BDEV_EXCLUSIVE, 1,
		[open_bdev_exclusive() is available])],
		[])
])
Required autoconf support for vdev_disk integration with 2.6.30 kernels. 2.6.22 API change Unused destroy_dirty_buffers arg removed from prototype. 2.6.24 API change Empty write barriers are now supported and we should use them. 2.6.24 API change Size argument dropped from bio_endio and bi_end_io, because the bi_end_io is only called once now when the request is complete. There is no longer any need for a size argument. This also means that partial IO's are no longer possibe and the end_io callback should not check bi->bi_size. Finally, the return type was updated to void. 2.6.28 API change open/close_bdev_excl() renamed to open/close_bdev_exclusive(). 2.6.29 API change BIO_RW_SYNC renamed to BIO_RW_SYNCIO. 2009-07-30 00:14:23 +00:00			`dnl #`
			`dnl # 2.6.28 API change`
			`dnl # open/close_bdev_excl() renamed to open/close_bdev_exclusive()`
			`dnl #`
			`AC_DEFUN([ZFS_AC_KERNEL_OPEN_BDEV_EXCLUSIVE], [`
			`ZFS_CHECK_SYMBOL_EXPORT(`
			`[open_bdev_exclusive],`
			`[fs/block_dev.c],`
			`[AC_DEFINE(HAVE_OPEN_BDEV_EXCLUSIVE, 1,`
			`[open_bdev_exclusive() is available])],`
			`[])`
			`])`