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| author |   Nicholas Bellinger <nab@linux-iscsi.org> | 2011-10-11 06:02:48 +0000 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-10-24 03:19:49 +0000 |
| commit | b0e062aec578c756d1aea4b5809294488366a6e8 (patch) | |
| tree | be27087f96cade8c65c4ccb6c5ab53a5c28729d5 /drivers/target/target_core_tmr.c | |
| parent | target: Re-org of core_tmr_lun_reset (diff) | |
| download | linux-dev-b0e062aec578c756d1aea4b5809294488366a6e8.tar.xz linux-dev-b0e062aec578c756d1aea4b5809294488366a6e8.zip | |
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 <roland@purestorage.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
Diffstat (limited to 'drivers/target/target_core_tmr.c')
| -rw-r--r-- | drivers/target/target_core_tmr.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index ed0b1ff99110..d04cc1016ebf 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); |