UBUNTU: SAUCE: (noup) Update spl to 0.6.5.8-0ubuntu1, zfs to 0.6.5.8-0ubuntu1

[mirror_ubuntu-zesty-kernel.git] / zfs / config / kernel-bio-op.m4

diff --git a/zfs/config/kernel-bio-op.m4 b/zfs/config/kernel-bio-op.m4
new file mode 100644 (file)
index 0000000..b4b6995
--- /dev/null
+++ b/zfs/config/kernel-bio-op.m4
@@ -0,0 +1,67 @@
+dnl #
+dnl # Linux 4.8 API,
+dnl #
+dnl # The bio_op() helper was introduced as a replacement for explicitly
+dnl # checking the bio->bi_rw flags.  The following checks are used to
+dnl # detect if a specific operation is supported.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_DISCARD], [
+       AC_MSG_CHECKING([whether REQ_OP_DISCARD is defined])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/blk_types.h>
+       ],[
+               enum req_op op __attribute__ ((unused)) = REQ_OP_DISCARD;
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_REQ_OP_DISCARD, 1,
+                   [REQ_OP_DISCARD is defined])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_SECURE_ERASE], [
+       AC_MSG_CHECKING([whether REQ_OP_SECURE_ERASE is defined])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/blk_types.h>
+       ],[
+               enum req_op op __attribute__ ((unused)) = REQ_OP_SECURE_ERASE;
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_REQ_OP_SECURE_DISCARD, 1,
+                   [REQ_OP_SECURE_ERASE is defined])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])
+
+
+AC_DEFUN([ZFS_AC_KERNEL_REQ_OP_FLUSH], [
+       AC_MSG_CHECKING([whether REQ_OP_FLUSH is defined])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/blk_types.h>
+       ],[
+               enum req_op op __attribute__ ((unused)) = REQ_OP_FLUSH;
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_REQ_OP_FLUSH, 1,
+                   [REQ_OP_FLUSH is defined])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_OPF], [
+       AC_MSG_CHECKING([whether bio->bi_opf is defined])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/bio.h>
+       ],[
+               struct bio bio __attribute__ ((unused));
+               bio.bi_opf = 0;
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_BIO_BI_OPF, 1, [bio->bi_opf is defined])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])