From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
We already expect TFO->get_blocks() to return sector_t for zero value case
when doing WRITE_SAME to the end of the backend device, so go ahead and return
sector_t from spc_get_write_same_sectors() to handle this case properly.
Also, update the single iblock_execute_write_same() caller of this code.
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/target/target_core_iblock.c | 2 +-
drivers/target/target_core_sbc.c | 2 +-
include/target/target_core_backend.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 42cc3fb..cfdb949 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -483,7 +483,7 @@ iblock_execute_write_same(struct se_cmd *cmd)
struct bio *bio;
struct bio_list list;
sector_t block_lba = cmd->t_task_lba;
- unsigned int sectors = spc_get_write_same_sectors(cmd);
+ sector_t sectors = spc_get_write_same_sectors(cmd);
sg = &cmd->t_data_sg[0];
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 4fd22cd..8be5bd7 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -109,7 +109,7 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
return 0;
}
-int spc_get_write_same_sectors(struct se_cmd *cmd)
+sector_t spc_get_write_same_sectors(struct se_cmd *cmd)
{
u32 num_blocks;
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 3393ab1..5079109 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -52,7 +52,7 @@ void target_complete_cmd(struct se_cmd *, u8);
sense_reason_t spc_parse_cdb(struct se_cmd *cmd, unsigned int *size);
sense_reason_t spc_emulate_report_luns(struct se_cmd *cmd);
-int spc_get_write_same_sectors(struct se_cmd *cmd);
+sector_t spc_get_write_same_sectors(struct se_cmd *cmd);
sense_reason_t sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops);
u32 sbc_get_device_rev(struct se_device *dev);
--
1.7.2.5
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