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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)
])
])
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