Support 'discard sectors' operation in translation layer support core

[deliverable/linux.git] / include / linux / mtd / blktrans.h

diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h
index 310e616064158d68afb3e3fcdfcc31a56421b1bb..8b4aa0523db76d22f821d07037e36bdcf2eb62be 100644 (file)
--- a/include/linux/mtd/blktrans.h
+++ b/include/linux/mtd/blktrans.h
@@ -41,6 +41,8 @@ struct mtd_blktrans_ops {
                    unsigned long block, char *buffer);
        int (*writesect)(struct mtd_blktrans_dev *dev,
                     unsigned long block, char *buffer);
+       int (*discard)(struct mtd_blktrans_dev *dev,
+                      unsigned long block, unsigned nr_blocks);
 
        /* Block layer ioctls */
        int (*getgeo)(struct mtd_blktrans_dev *dev, struct hd_geometry *geo);