Use the pscsi driver to support arbitrary command passthrough
instead.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/target/target_core_iblock.c | 34 ----------------------------------
1 file changed, 34 deletions(-)
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index d316ed537d59..9da31970a004 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -415,39 +415,8 @@ iblock_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
}
static sense_reason_t
-iblock_execute_write_same_direct(struct block_device *bdev, struct se_cmd *cmd)
-{
- struct se_device *dev = cmd->se_dev;
- struct scatterlist *sg = &cmd->t_data_sg[0];
- struct page *page = NULL;
- int ret;
-
- if (sg->offset) {
- page = alloc_page(GFP_KERNEL);
- if (!page)
- return TCM_OUT_OF_RESOURCES;
- sg_copy_to_buffer(sg, cmd->t_data_nents, page_address(page),
- dev->dev_attrib.block_size);
- }
-
- ret = blkdev_issue_write_same(bdev,
- target_to_linux_sector(dev, cmd->t_task_lba),
- target_to_linux_sector(dev,
- sbc_get_write_same_sectors(cmd)),
- GFP_KERNEL, page ? page : sg_page(sg));
- if (page)
- __free_page(page);
- if (ret)
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-
- target_complete_cmd(cmd, GOOD);
- return 0;
-}
-
-static sense_reason_t
iblock_execute_write_same(struct se_cmd *cmd)
{
- struct block_device *bdev = IBLOCK_DEV(cmd->se_dev)->ibd_bd;
struct iblock_req *ibr;
struct scatterlist *sg;
struct bio *bio;
@@ -472,9 +441,6 @@ iblock_execute_write_same(struct se_cmd *cmd)
return TCM_INVALID_CDB_FIELD;
}
- if (bdev_write_same(bdev))
- return iblock_execute_write_same_direct(bdev, cmd);
-
ibr = kzalloc(sizeof(struct iblock_req), GFP_KERNEL);
if (!ibr)
goto fail;
--
2.11.0
--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel
