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target: implement WRITE_SAME with UNMAP bit using ->execute_unmap

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Christoph Hellwig
2015-06-19 15:11:00 +02:00
committed by Nicholas Bellinger
parent 62e4694256
commit b753d64355
4 changed files with 19 additions and 40 deletions
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21
drivers/target/target_core_file.c
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@@ -518,26 +518,6 @@ fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
return 0;
}
static sense_reason_t
fd_execute_write_same_unmap(struct se_cmd *cmd)
{
sector_t lba = cmd->t_task_lba;
sector_t nolb = sbc_get_write_same_sectors(cmd);
sense_reason_t ret;
if (!nolb) {
target_complete_cmd(cmd, SAM_STAT_GOOD);
return 0;
}
ret = fd_execute_unmap(cmd, lba, nolb);
if (ret)
return ret;
target_complete_cmd(cmd, GOOD);
return 0;
}
static sense_reason_t
fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
enum dma_data_direction data_direction)
@@ -827,7 +807,6 @@ static struct sbc_ops fd_sbc_ops = {
.execute_rw = fd_execute_rw,
.execute_sync_cache = fd_execute_sync_cache,
.execute_write_same = fd_execute_write_same,
.execute_write_same_unmap = fd_execute_write_same_unmap,
.execute_unmap = fd_execute_unmap,
};