diff options
| author | Christoph Hellwig <hch@infradead.org> | 2011-10-17 13:56:48 -0400 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-10-24 03:21:44 +0000 |
| commit | cc5d0f0f61645ca43d9a7320ec2f268bad5016c5 (patch) | |
| tree | 4e6857339fed505ed1b373941126ff1e1e37a0ba /include/target | |
| parent | e99d48a62bfc6e64548e0d5085240c5024eca471 (diff) | |
| download | lwn-cc5d0f0f61645ca43d9a7320ec2f268bad5016c5.tar.gz lwn-cc5d0f0f61645ca43d9a7320ec2f268bad5016c5.zip | |
target: stop task timers earlier
Currently we stop the timers for all tasks in a command fairly late during
I/O completion, which is fairly pointless and requires all kinds of safety
checks.
Instead delete pending timers early on in transport_complete_task, thus
ensuring no new timers firest after that. We take t_state_lock a bit later
in that function thus making sure currenly running timers are out of the
criticial section. To be completely sure the timer has finished we also
add another del_timer_sync call when freeing the task.
This also allows removing TF_TIMER_RUNNING as it would be equivalent
to TF_ACTIVE now.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
| -rw-r--r-- | include/target/target_core_base.h | 1 | ||||
| -rw-r--r-- | include/target/target_core_transport.h | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 8f02a65de75f..027193650749 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -77,7 +77,6 @@ enum se_task_flags { TF_SENT = (1 << 1), TF_TIMEOUT = (1 << 2), TF_REQUEST_STOP = (1 << 3), - TF_TIMER_RUNNING = (1 << 4), }; /* Special transport agnostic struct se_cmd->t_states */ diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h index 1ba5835426fc..c8538c5d3fbf 100644 --- a/include/target/target_core_transport.h +++ b/include/target/target_core_transport.h @@ -172,7 +172,6 @@ extern void transport_new_cmd_failure(struct se_cmd *); extern int transport_generic_handle_tmr(struct se_cmd *); extern void transport_generic_free_cmd_intr(struct se_cmd *); extern bool target_stop_task(struct se_task *task, unsigned long *flags); -extern void __transport_stop_task_timer(struct se_task *, unsigned long *); extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32, struct scatterlist *, u32); extern int transport_clear_lun_from_sessions(struct se_lun *); |