mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-27 03:10:12 +00:00
Code Issues Releases Wiki Activity

target: Prevent TRANSPORT_FREE_CMD_INTR processing in core_tmr_drain_cmd_list

Browse source 
This patch contains a bugfix for TMR LUN_RESET related to TRANSPORT_FREE_CMD_INTR
operation, where core_tmr_drain_cmd_list() will now skip processing for this
case to prevent an ABORT_TASK status from being returned for descriptors that
are already queued up to be released by processing thread context.

Cc: Roland Dreier <roland@purestorage.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
This commit is contained in:
Nicholas Bellinger 2011-10-11 06:02:48 +00:00
parent d050ffb922
commit b0e062aec5
1 changed files with 10 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/target/target_core_tmr.c
View file

@ -339,6 +339,16 @@ static void core_tmr_drain_cmd_list(
*/
if (prout_cmd == cmd)
continue;
/*
* Skip direct processing of TRANSPORT_FREE_CMD_INTR for
* HW target mode fabrics.
*/
spin_lock(&cmd->t_state_lock);
if (cmd->t_state == TRANSPORT_FREE_CMD_INTR) {
spin_unlock(&cmd->t_state_lock);
continue;
}
spin_unlock(&cmd->t_state_lock);
atomic_set(&cmd->t_transport_queue_active, 0);
atomic_dec(&qobj->queue_cnt);