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target: Remove cmd->se_ordered_id (unused except debug log lines)

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For every command, we set se_ordered_id by doing atomic_inc_return on
dev->dev_ordered_id for the corresponding device.  However, the only
places this value gets used are in pr_debug() calls, which doesn't
seem worth an extra atomic op per IO.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Roland Dreier
2015-07-21 17:45:32 -07:00
committed by Nicholas Bellinger
parent 45182ed576
commit 9c31820b6a
3 changed files with 13 additions and 29 deletions
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2
include/target/target_core_base.h
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@@ -454,7 +454,6 @@ struct se_cmd {
unsigned unknown_data_length:1;
/* See se_cmd_flags_table */
u32 se_cmd_flags;
u32 se_ordered_id;
/* Total size in bytes associated with command */
u32 data_length;
u32 residual_count;
@@ -744,7 +743,6 @@ struct se_device {
atomic_long_t write_bytes;
/* Active commands on this virtual SE device */
atomic_t simple_cmds;
atomic_t dev_ordered_id;
atomic_t dev_ordered_sync;
atomic_t dev_qf_count;
u32 export_count;