diff options
Diffstat (limited to 'config/kernel-blkdev-get.m4')
| -rw-r--r-- | config/kernel-blkdev-get.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/config/kernel-blkdev-get.m4 b/config/kernel-blkdev-get.m4 new file mode 100644 index 000000000..e31d71770 --- /dev/null +++ b/config/kernel-blkdev-get.m4 @@ -0,0 +1,19 @@ +dnl # +dnl # 2.6.37 API change +dnl # Added 3rd argument for the active holder, previously this was +dnl # hardcoded to NULL. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_3ARG_BLKDEV_GET], [ + AC_MSG_CHECKING([whether blkdev_get() wants 3 args]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/fs.h> + ],[ + struct block_device *bdev = NULL; + (void) blkdev_get(bdev, 0, NULL); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_3ARG_BLKDEV_GET, 1, [blkdev_get() wants 3 args]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |