Add support for DISCARD to ZVOLs.

[zfs.git] / include / linux / blkdev_compat.h

diff --git a/include/linux/blkdev_compat.h b/include/linux/blkdev_compat.h
index 56a1baf..bd1b2bf 100644 (file)
--- a/include/linux/blkdev_compat.h
+++ b/include/linux/blkdev_compat.h
@@ -425,6 +425,14 @@ bio_set_flags_failfast(struct block_device *bdev, int *flags)
 #endif
 
 /*
+ * 2.6.32 API change
+ * Use the normal I/O patch for discards.
+ */
+#ifdef REQ_DISCARD
+# define VDEV_REQ_DISCARD              REQ_DISCARD
+#endif
+
+/*
  * Default Linux IO Scheduler,
  * Setting the scheduler to noop will allow the Linux IO scheduler to
  * still perform front and back merging, while leaving the request