tree b3500cdee70ee7f4cc90de99301a948cd731b2ca
parent 95897910a5b8ecdc7e86ca2c38e21e84324c98bd
author Chris Leech <cleech@redhat.com> 1380211784 -0700
committer James Bottomley <JBottomley@Parallels.com> 1382691493 +0100

[SCSI] iscsi_tcp: consider session state in iscsi_sw_sk_state_check

It seems some iSCSI targets (including the Linux kernel target) close
the TCP connection from the target side immediately after processing a
session logout.

When a TCP FIN comes in right after the iSCSI logout response,
iscsi_sw_sk_state_check sees the local socket as not yet being in
CLOSE_WAIT or CLOSE and logs an error.  But the initiator would close
the connection right after processing the logout response anyway, and
the error is confusing to admins who just requested that the session be
shut down.

This adds a check of the session state, and suppresses the error if we
are in the process of logging out.

Signed-off-by: Chris Leech <cleech@redhat.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>