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(parent: 61f3616) | patch
target: fix potential race window in target_sess_cmd_list_waiting()
authorHannes Reinecke <hare@suse.de>
Mon, 22 Aug 2016 08:54:07 +0000 (10:54 +0200)
committerNicholas Bellinger <nab@linux-iscsi.org>
Fri, 21 Oct 2016 08:19:41 +0000 (01:19 -0700)
commit1b4c59b7a1d0b9d8019254a5f2e35b2663f49a9e
tree205b14587942953e85ff09798ac87d7ce1497f30tree | snapshot
parent61f36166c245e563c7a2b624f4c78c5ce0f680d6commit | diff
target: fix potential race window in target_sess_cmd_list_waiting()

target_sess_cmd_list_waiting() might hit on a condition where
the kref for the command is already 0, but the destructor has
not been called yet (or is stuck in waiting for a spin lock).
Rather than leaving the command on the list we should explicitly
remove it to avoid race issues later on.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
drivers/target/target_core_transport.c diff | blob | history
Domain: System / Kernel; Licenses: GPL-2.0;