diff options
Diffstat (limited to 'config/kernel-bio-rw-barrier.m4')
| -rw-r--r-- | config/kernel-bio-rw-barrier.m4 | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/config/kernel-bio-rw-barrier.m4 b/config/kernel-bio-rw-barrier.m4 index bcf0f7ea0..f667d4884 100644 --- a/config/kernel-bio-rw-barrier.m4 +++ b/config/kernel-bio-rw-barrier.m4 @@ -3,20 +3,25 @@ dnl # Interface for issuing a discard bio: dnl # 2.6.28-2.6.35: BIO_RW_BARRIER dnl # 2.6.36-3.x: REQ_BARRIER dnl # - +dnl # dnl # Since REQ_BARRIER is a preprocessor definition, there is no need for an dnl # autotools check for it. Also, REQ_BARRIER existed in the request layer dnl # until torvalds/linux@7b6d91daee5cac6402186ff224c3af39d79f4a0e unified the dnl # request layer and bio layer flags, so it would be wrong to assume that dnl # the APIs are mutually exclusive contrary to the typical case. -AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_BARRIER], [ - AC_MSG_CHECKING([whether BIO_RW_BARRIER is defined]) - ZFS_LINUX_TRY_COMPILE([ +dnl # +AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_RW_BARRIER], [ + ZFS_LINUX_TEST_SRC([bio_rw_barrier], [ #include <linux/bio.h> ],[ int flags __attribute__ ((unused)); flags = BIO_RW_BARRIER; - ],[ + ]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_BIO_RW_BARRIER], [ + AC_MSG_CHECKING([whether BIO_RW_BARRIER is defined]) + ZFS_LINUX_TEST_RESULT([bio_rw_barrier], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_BIO_RW_BARRIER, 1, [BIO_RW_BARRIER is defined]) ],[ |