From: Nicholas Bellinger Date: Tue, 11 Oct 2011 06:02:48 +0000 (+0000) Subject: target: Prevent TRANSPORT_FREE_CMD_INTR processing in core_tmr_drain_cmd_list X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b0e062aec578c756d1aea4b5809294488366a6e8;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git target: Prevent TRANSPORT_FREE_CMD_INTR processing in core_tmr_drain_cmd_list 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 Cc: Christoph Hellwig Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index ed0b1ff9911..d04cc1016eb 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -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);