diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/blkdev.h | 1 | ||||
| -rw-r--r-- | include/linux/mtd/blktrans.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 26ececbbebe2..727886d25c4e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -81,6 +81,7 @@ enum { */ REQ_LB_OP_EJECT = 0x40, /* eject request */ REQ_LB_OP_FLUSH = 0x41, /* flush device */ + REQ_LB_OP_DISCARD = 0x42, /* discard sectors */ }; /* diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index 310e61606415..8b4aa0523db7 100644 --- 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); |