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target/sbc: Seperate WRITE_SAME based on UNMAP flag in sbc_ops

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This patch adds a new sbc_ops->execute_write_same_unmap() caller for use
with WRITE_SAME w/ UNMAP=1, and performs the ->execute_cmd() setup based
this bit within sbc_setup_write_same() code.

Also, makes the changes in sbc_parse_cdb() to handle a sense_reason_t
return from sbc_setup_write_same() on error.

Reported-by: Christoph Hellwig <hch@lst.de>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger
2012-11-07 20:01:10 -08:00
parent 1920ed61fb
commit cd063bef41
2 changed files with 25 additions and 29 deletions
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include/target/target_core_backend.h
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@@ -41,6 +41,7 @@ struct sbc_ops {
sense_reason_t (*execute_rw)(struct se_cmd *cmd);
sense_reason_t (*execute_sync_cache)(struct se_cmd *cmd);
sense_reason_t (*execute_write_same)(struct se_cmd *cmd);
sense_reason_t (*execute_write_same_unmap)(struct se_cmd *cmd);
sense_reason_t (*execute_unmap)(struct se_cmd *cmd);
};