diff options
author | Christoph Hellwig <hch@lst.de> | 2011-09-13 23:08:50 +0200 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-10-24 03:20:36 +0000 |
commit | e6a2573f1f5d66f0456c433afdfc63f33fdf9008 (patch) | |
tree | 90b36ed3403ab420521134e86f050e339d270b7b /drivers | |
parent | 4911e3ccbec047ed1f728e19a70ad87729a3fb01 (diff) | |
download | lwn-e6a2573f1f5d66f0456c433afdfc63f33fdf9008.tar.gz lwn-e6a2573f1f5d66f0456c433afdfc63f33fdf9008.zip |
target: remove transport_generic_remove
All callers that never have the session_reinstatement flag set can trivially
be converted to transport_put_cmd. Opencode the session reinstatement code
in transport_generic_free_cmd, which was the only caller ever asking for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/target/target_core_transport.c | 44 |
1 files changed, 15 insertions, 29 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index a650100d997a..4f21b88b85b1 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -86,8 +86,6 @@ static u32 transport_allocate_tasks(struct se_cmd *cmd, enum dma_data_direction data_direction, struct scatterlist *sgl, unsigned int nents); static int transport_generic_get_mem(struct se_cmd *cmd); -static int transport_generic_remove(struct se_cmd *cmd, - int session_reinstatement); static bool transport_put_cmd(struct se_cmd *cmd); static void transport_remove_cmd_from_queue(struct se_cmd *cmd, struct se_queue_obj *qobj); @@ -599,7 +597,7 @@ void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) return; if (remove) { transport_remove_cmd_from_queue(cmd, &cmd->se_dev->dev_queue_obj); - transport_generic_remove(cmd, 0); + transport_put_cmd(cmd); } } @@ -610,7 +608,7 @@ void transport_cmd_finish_abort_tmr(struct se_cmd *cmd) if (transport_cmd_check_stop_to_fabric(cmd)) return; - transport_generic_remove(cmd, 0); + transport_put_cmd(cmd); } static void transport_add_cmd_to_queue( @@ -2072,7 +2070,7 @@ static void transport_generic_request_timeout(struct se_cmd *cmd) unsigned long flags; /* - * Reset cmd->t_se_count to allow transport_generic_remove() + * Reset cmd->t_se_count to allow transport_put_cmd() * to allow last call to free memory resources. */ spin_lock_irqsave(&cmd->t_state_lock, flags); @@ -2083,7 +2081,7 @@ static void transport_generic_request_timeout(struct se_cmd *cmd) } spin_unlock_irqrestore(&cmd->t_state_lock, flags); - transport_generic_remove(cmd, 0); + transport_put_cmd(cmd); } static inline u32 transport_lba_21(unsigned char *cdb) @@ -3772,24 +3770,6 @@ out_busy: return false; } -static int -transport_generic_remove(struct se_cmd *cmd, int session_reinstatement) -{ - unsigned long flags; - - if (!transport_put_cmd(cmd)) { - if (session_reinstatement) { - spin_lock_irqsave(&cmd->t_state_lock, flags); - transport_all_task_dev_remove_state(cmd); - spin_unlock_irqrestore(&cmd->t_state_lock, - flags); - } - return 1; - } - - return 0; -} - /* * transport_generic_map_mem_to_cmd - Use fabric-alloced pages instead of * allocating in the core. @@ -4379,7 +4359,13 @@ void transport_generic_free_cmd( transport_free_dev_tasks(cmd); - transport_generic_remove(cmd, session_reinstatement); + if (!transport_put_cmd(cmd) && session_reinstatement) { + unsigned long flags; + + spin_lock_irqsave(&cmd->t_state_lock, flags); + transport_all_task_dev_remove_state(cmd); + spin_unlock_irqrestore(&cmd->t_state_lock, flags); + } } } EXPORT_SYMBOL(transport_generic_free_cmd); @@ -5066,7 +5052,7 @@ static void transport_processing_shutdown(struct se_device *dev) transport_lun_remove_cmd(cmd); if (transport_cmd_check_stop(cmd, 1, 0)) - transport_generic_remove(cmd, 0); + transport_put_cmd(cmd); } spin_lock_irqsave(&dev->execute_task_lock, flags); @@ -5094,7 +5080,7 @@ static void transport_processing_shutdown(struct se_device *dev) transport_lun_remove_cmd(cmd); if (transport_cmd_check_stop(cmd, 1, 0)) - transport_generic_remove(cmd, 0); + transport_put_cmd(cmd); } spin_lock_irqsave(&dev->execute_task_lock, flags); @@ -5117,7 +5103,7 @@ static void transport_processing_shutdown(struct se_device *dev) } else { transport_lun_remove_cmd(cmd); if (transport_cmd_check_stop(cmd, 1, 0)) - transport_generic_remove(cmd, 0); + transport_put_cmd(cmd); } } } @@ -5192,7 +5178,7 @@ get_cmd: transport_generic_complete_ok(cmd); break; case TRANSPORT_REMOVE: - transport_generic_remove(cmd, 0); + transport_put_cmd(cmd); break; case TRANSPORT_FREE_CMD_INTR: transport_generic_free_cmd(cmd, 0, 0); |