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iscsi-target: Fix iscsit_add_reject* usage for iser

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This patch changes iscsit_add_reject() + iscsit_add_reject_from_cmd()
usage to not sleep on iscsi_cmd->reject_comp to address a free-after-use
usage bug in v3.10 with iser-target code.

It saves ->reject_reason for use within iscsit_build_reject() so the
correct value for both transport cases.  It also drops the legacy
fail_conn parameter usage throughput iscsi-target code and adds
two iscsit_add_reject_cmd() and iscsit_reject_cmd helper functions,
along with various small cleanups.

(v2: Re-enable target_put_sess_cmd() to be called from
     iscsit_add_reject_from_cmd() for rejects invoked after
     target_get_sess_cmd() has been called)

Cc: Or Gerlitz <[email protected]>
Cc: Mike Christie <[email protected]>
Cc: [email protected]  # 3.10+
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Nicholas Bellinger 2013-07-03 03:48:24 -07:00
commit ba15991408
8 changed files with 120 additions and 180 deletions
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5
drivers/infiniband/ulp/isert/ib_isert.c
View file

@ -939,11 +939,6 @@ sequence_cmd:
if (!rc && dump_payload == false && unsol_data)
iscsit_set_unsoliticed_dataout(cmd);
if (rc == CMDSN_ERROR_CANNOT_RECOVER)
return iscsit_add_reject_from_cmd(
ISCSI_REASON_PROTOCOL_ERROR,
1, 0, (unsigned char *)hdr, cmd);
return 0;
}