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Let's experimantally disable SCST_MAX_DEV_COMMANDS and cmd->dev_cmd_count functionality and see if users will complain about it. If not, we will remove it.

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1448 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2010-01-11 19:27:07 +00:00
parent 23accb2e12
commit a0b91ecc55
1 changed files with 10 additions and 1 deletions
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11
scst/src/scst_targ.c
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@@ -33,11 +33,16 @@
#include "scst.h"
#include "scst_priv.h"
#if 0 /* Temporary, left for future performance investigations */
#if 0 /* Temporary left for future performance investigations */
/* Deleting it don't forget to delete write_cmd_count */
#define CONFIG_SCST_ORDERED_READS
#endif
#if 0 /* Let's disable it for now to see if users will complain about it */
/* Deleting it don't forget to delete write_cmd_count */
#define CONFIG_SCST_PER_DEVICE_CMD_COUNT_LIMIT
#endif
static void scst_cmd_set_sn(struct scst_cmd *cmd);
static int __scst_init_cmd(struct scst_cmd *cmd);
static void scst_finish_cmd_mgmt(struct scst_cmd *cmd);
@@ -2869,7 +2874,9 @@ static int scst_pre_xmit_response(struct scst_cmd *cmd)
* latency, so we should decrement them after cmd completed.
*/
atomic_dec(&cmd->tgt_dev->tgt_dev_cmd_count);
#ifdef CONFIG_SCST_PER_DEVICE_CMD_COUNT_LIMIT
atomic_dec(&cmd->dev->dev_cmd_count);
#endif
#ifdef CONFIG_SCST_ORDERED_READS
/* If expected values not set, expected direction is UNKNOWN */
if (cmd->expected_data_direction & SCST_DATA_WRITE)
@@ -3322,6 +3329,7 @@ static int __scst_init_cmd(struct scst_cmd *cmd)
failure = true;
}
#ifdef CONFIG_SCST_PER_DEVICE_CMD_COUNT_LIMIT
cnt = atomic_inc_return(&cmd->dev->dev_cmd_count);
if (unlikely(cnt > SCST_MAX_DEV_COMMANDS)) {
if (!failure) {
@@ -3335,6 +3343,7 @@ static int __scst_init_cmd(struct scst_cmd *cmd)
failure = true;
}
}
#endif
#ifdef CONFIG_SCST_ORDERED_READS
/* If expected values not set, expected direction is UNKNOWN */