Now we can generate correct PI for WRITE SAME command, so it is
unnecessary to disallow WRITE SAME when protection info is enabled.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Cc: Sagi Grimberg <sagig@xxxxxxxxxxxx>
Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Cc: target-devel@xxxxxxxxxxxxxxx
Cc: linux-scsi@xxxxxxxxxxxxxxx
---
drivers/target/target_core_file.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 829817a..200d9ec 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -381,11 +381,6 @@ fd_execute_write_same(struct se_cmd *cmd)
target_complete_cmd(cmd, SAM_STAT_GOOD);
return 0;
}
- if (cmd->prot_op) {
- pr_err("WRITE_SAME: Protection information with FILEIO"
- " backends not supported\n");
- return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- }
if (cmd->t_data_nents > 1 ||
cmd->t_data_sg[0].length != cmd->se_dev->dev_attrib.block_size) {
@@ -401,6 +396,14 @@ fd_execute_write_same(struct se_cmd *cmd)
if (!bvec)
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ if (cmd->prot_op) {
+ ret = fd_do_rw(cmd, fd_dev->fd_prot_file, se_dev->prot_length,
+ cmd->t_prot_sg, cmd->t_prot_nents,
+ cmd->prot_length, 0);
+ if (ret < 0)
+ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
+
for (i = 0; i < nolb; i++) {
bvec[i].bv_page = sg_page(&cmd->t_data_sg[0]);
bvec[i].bv_len = cmd->t_data_sg[0].length;
--
1.9.1
--
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