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dnl #
dnl # 2.6.31 API change
dnl # Request queue peek/retrieval interface cleanup, the
dnl # elv_requeue_request() function has been replaced with the
dnl # blk_requeue_request() function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_REQUEUE_REQUEST], [
AC_MSG_CHECKING([whether blk_requeue_request() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
struct request_queue *q = NULL;
struct request *req = NULL;
blk_requeue_request(q, req);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_REQUEUE_REQUEST, 1,
[blk_requeue_request() is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])
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