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-rw-r--r--config/kernel-bio-bvec-iter.m420
1 files changed, 20 insertions, 0 deletions
diff --git a/config/kernel-bio-bvec-iter.m4 b/config/kernel-bio-bvec-iter.m4
new file mode 100644
index 000000000..64c989386
--- /dev/null
+++ b/config/kernel-bio-bvec-iter.m4
@@ -0,0 +1,20 @@
+dnl #
+dnl # 3.14 API change,
+dnl # Immutable biovecs. A number of fields of struct bio are moved to
+dnl # struct bvec_iter.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_BIO_BVEC_ITER], [
+ AC_MSG_CHECKING([whether bio has bi_iter])
+ ZFS_LINUX_TRY_COMPILE([
+ #include <linux/bio.h>
+ ],[
+ struct bio bio;
+ bio.bi_iter.bi_sector = 0;
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_BIO_BVEC_ITER, 1, [bio has bi_iter])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])
+