[Scst-svn] SF.net SVN: scst:[5978] trunk/scst/src/scst_targ.c

[<vl...@us...>]

Revision: 5978
          http://sourceforge.net/p/scst/svn/5978
Author:   vlnb
Date:     2015-01-20 04:20:13 +0000 (Tue, 20 Jan 2015)
Log Message:
-----------
Revert r5963 as not needed

Revision Links:
--------------
    http://sourceforge.net/p/scst/svn/5963

Modified Paths:
--------------
    trunk/scst/src/scst_targ.c

Modified: trunk/scst/src/scst_targ.c
===================================================================
--- trunk/scst/src/scst_targ.c	2015-01-20 04:18:07 UTC (rev 5977)
+++ trunk/scst/src/scst_targ.c	2015-01-20 04:20:13 UTC (rev 5978)
@@ -1598,44 +1598,12 @@
 }
 EXPORT_SYMBOL(scst_rx_data);
 
-/*
- * Whether a command must be executed in thread context. Persistent reservation
- * commands need thread context because of dev_pr_mutex. Traditional reserve
- * and release commands need thread context because e.g. queueing a unit
- * attention needs either BH or thread context.
- */
-static inline bool scst_needs_thread_context(struct scst_cmd *cmd)
-{
-	switch (cmd->cdb[0]) {
-	case PERSISTENT_RESERVE_IN:
-	case PERSISTENT_RESERVE_OUT:
-	case RESERVE:
-	case RESERVE_10:
-	case RELEASE:
-	case RELEASE_10:
-		return true;
-	}
-
-	return false;
-}
-
 static int scst_tgt_pre_exec(struct scst_cmd *cmd)
 {
 	int res = SCST_CMD_STATE_RES_CONT_SAME, rc;
 
 	TRACE_ENTRY();
 
-	/* Switch to thread context before executing a reservation command. */
-	if (unlikely(scst_cmd_atomic(cmd) &&
-		     ((cmd->dev && cmd->dev->pr_is_set) ||
-		      scst_needs_thread_context(cmd)))) {
-		TRACE_DBG("Atomic context and %s, rescheduling (cmd %p)",
-			  cmd->dev && cmd->dev->pr_is_set ?
-			  "dev->pr_is_set" : "reservation command", cmd);
-		res = SCST_CMD_STATE_RES_NEED_THREAD;
-		goto out;
-	}
-
 #if defined(CONFIG_SCST_DEBUG) || defined(CONFIG_SCST_TRACING)
 	if (unlikely(trace_flag & TRACE_DATA_RECEIVED) &&
 	    (cmd->data_direction & SCST_DATA_WRITE)) {

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