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authorChristoph Hellwig <hch@lst.de>2012-11-06 12:24:09 -0800
committerNicholas Bellinger <nab@linux-iscsi.org>2012-11-06 20:55:46 -0800
commitde103c93aff0bed0ae984274e5dc8b95899badab (patch)
tree7db9bba755fa95772052e8d31285a38ba48f1a84 /drivers/target/target_core_alua.h
parentfecae40abb1ae9218bdbaa8b8e30bfb5ae43f522 (diff)
downloadlinux-de103c93aff0bed0ae984274e5dc8b95899badab.tar.gz
target: pass sense_reason as a return value
Pass the sense reason as an explicit return value from the I/O submission path instead of storing it in struct se_cmd and using negative return values. This cleans up a lot of the code pathes, and with the sparse annotations for the new sense_reason_t type allows for much better error checking. (nab: Convert spc_emulate_modesense + spc_emulate_modeselect to use sense_reason_t with Roland's MODE SELECT changes) Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_alua.h')
-rw-r--r--drivers/target/target_core_alua.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h
index a2af8aa15b9..e539c3e7f4a 100644
--- a/drivers/target/target_core_alua.h
+++ b/drivers/target/target_core_alua.h
@@ -72,8 +72,8 @@ extern struct kmem_cache *t10_alua_lu_gp_mem_cache;
extern struct kmem_cache *t10_alua_tg_pt_gp_cache;
extern struct kmem_cache *t10_alua_tg_pt_gp_mem_cache;
-extern int target_emulate_report_target_port_groups(struct se_cmd *);
-extern int target_emulate_set_target_port_groups(struct se_cmd *);
+extern sense_reason_t target_emulate_report_target_port_groups(struct se_cmd *);
+extern sense_reason_t target_emulate_set_target_port_groups(struct se_cmd *);
extern int core_alua_check_nonop_delay(struct se_cmd *);
extern int core_alua_do_port_transition(struct t10_alua_tg_pt_gp *,
struct se_device *, struct se_port *,
@@ -132,6 +132,6 @@ extern ssize_t core_alua_show_secondary_write_metadata(struct se_lun *,
extern ssize_t core_alua_store_secondary_write_metadata(struct se_lun *,
const char *, size_t);
extern int core_setup_alua(struct se_device *);
-extern int target_alua_state_check(struct se_cmd *cmd);
+extern sense_reason_t target_alua_state_check(struct se_cmd *cmd);
#endif /* TARGET_CORE_ALUA_H */