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target: add helper to find se_device by dev_index

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This adds a helper to find a se_device by dev_index. It will
be used in the next patches so tcmu's netlink interface can
execute commands on specific devices.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Mike Christie
2017-06-23 01:18:14 -05:00
committed by Nicholas Bellinger
parent 0a5eee647b
commit 85441e6b8c
2 changed files with 26 additions and 0 deletions
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2
include/target/target_core_backend.h
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@@ -106,6 +106,8 @@ bool target_lun_is_rdonly(struct se_cmd *);
sense_reason_t passthrough_parse_cdb(struct se_cmd *cmd,
sense_reason_t (*exec_cmd)(struct se_cmd *cmd));
struct se_device *target_find_device(int id, bool do_depend);
bool target_sense_desc_format(struct se_device *dev);
sector_t target_to_linux_sector(struct se_device *dev, sector_t lb);
bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,