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authorRoland Dreier <roland@purestorage.com>2012-07-16 22:04:39 +0400
committerNicholas Bellinger <nab@linux-iscsi.org>2012-07-18 04:05:05 +0400
commitd6dfc868bcf329392abd1ecfa7357eb51ebf8c30 (patch)
tree7eb33785e4d6a59111560b56e68f4facaddee310 /include/target
parent7409a6657aebf8be74c21d0eded80709b27275cb (diff)
downloadlinux-d6dfc868bcf329392abd1ecfa7357eb51ebf8c30.tar.xz
target: Allow for target_submit_cmd() returning errors
We want it to be possible for target_submit_cmd() to return errors up to its fabric module callers. For now just update the prototype to return an int, and update all callers to handle non-zero return values as an error. This is immediately useful for tcm_qla2xxx to fix a long-standing active I/O session shutdown race, but tcm_fc, usb-gadget, and sbp-target the fabric maintainers need to check + ACK that handling a target_submit_cmd() failure due to session shutdown does not introduce regressions (nab: Respin against for-next after initial NACK + update docbook comment + fix double se_cmd init in exception path for usb-gadget) Cc: Chad Dupuis <chad.dupuis@qlogic.com> Cc: Arun Easi <arun.easi@qlogic.com> Cc: Chris Boot <bootc@bootc.net> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Mark Rustad <mark.d.rustad@intel.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Felipe Balbi <balbi@ti.com> Cc: Andy Grover <agrover@redhat.com> Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
-rw-r--r--include/target/target_core_fabric.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 815e064028c9..69fb3cfd02d7 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -102,7 +102,7 @@ void transport_init_se_cmd(struct se_cmd *, struct target_core_fabric_ops *,
struct se_session *, u32, int, int, unsigned char *);
int transport_lookup_cmd_lun(struct se_cmd *, u32);
int target_setup_cmd_from_cdb(struct se_cmd *, unsigned char *);
-void target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *,
+int target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *,
unsigned char *, u32, u32, int, int, int);
int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
unsigned char *sense, u32 unpacked_lun,