New upstream version 0.7.9

[mirror_zfs-debian.git] / config / kernel-blk-queue-flags.m4

diff --git a/config/kernel-blk-queue-flags.m4 b/config/kernel-blk-queue-flags.m4
new file mode 100644 (file)
index 0000000..b570245
--- /dev/null
+++ b/config/kernel-blk-queue-flags.m4
@@ -0,0 +1,38 @@
+dnl #
+dnl # API change
+dnl # https://github.com/torvalds/linux/commit/8814ce8
+dnl # Introduction of blk_queue_flag_set and blk_queue_flag_clear
+dnl #
+
+AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET], [
+       AC_MSG_CHECKING([whether blk_queue_flag_set() exists])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/kernel.h>
+               #include <linux/blkdev.h>
+       ],[
+               struct request_queue *q = NULL;
+               blk_queue_flag_set(0, q);
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_BLK_QUEUE_FLAG_SET, 1, [blk_queue_flag_set() exists])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR], [
+       AC_MSG_CHECKING([whether blk_queue_flag_clear() exists])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/kernel.h>
+               #include <linux/blkdev.h>
+       ],[
+               struct request_queue *q = NULL;
+               blk_queue_flag_clear(0, q);
+       ],[
+
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_BLK_QUEUE_FLAG_CLEAR, 1, [blk_queue_flag_clear() exists])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])