From: Erik van der Kouwe <erik@minix3.org>
Date: Fri, 25 Jun 2010 14:57:54 +0000 (+0000)
Subject: Get rid of asynsend backup copy in VFS
X-Git-Tag: v3.1.8~358
X-Git-Url: http://zhaoyanbai.com/repos/Bv9ARM.ch11.html?a=commitdiff_plain;h=c0dfa2f3f19c5ec30f13c39769232251553658f0;p=minix.git

Get rid of asynsend backup copy in VFS
---

diff --git a/servers/vfs/device.c b/servers/vfs/device.c
index 2ceba6d66..c1764ae88 100644
--- a/servers/vfs/device.c
+++ b/servers/vfs/device.c
@@ -1051,93 +1051,3 @@ PUBLIC void reopen_reply()
 
   restart_reopen(maj);
 }
-
-#if 0
-#define ASYN_NR	100
-PRIVATE asynmsg_t msgtable[ASYN_NR];
-PRIVATE int first_slot= 0, next_slot= 0;
-
-PUBLIC int asynsend(dst, mp)
-endpoint_t dst;
-message *mp;
-{
-	int r, src_ind, dst_ind;
-	unsigned flags;
-
-	/* Update first_slot */
-	for (; first_slot < next_slot; first_slot++)
-	{
-		flags= msgtable[first_slot].flags;
-		if ((flags & (AMF_VALID|AMF_DONE)) == (AMF_VALID|AMF_DONE))
-		{
-			if (msgtable[first_slot].result != OK)
-			{
-				printf(
-			"asynsend: found completed entry %d with error %d\n",
-					first_slot,
-					msgtable[first_slot].result);
-			}
-			continue;
-		}
-		if (flags != AMF_EMPTY)
-			break;
-	}
-
-	if (first_slot >= next_slot)
-	{
-		/* Reset first_slot and next_slot */
-		next_slot= first_slot= 0;
-	}
-
-	if (next_slot >= ASYN_NR)
-	{
-		/* Tell the kernel to stop processing */
-		r= senda(NULL, 0);
-		if (r != OK)
-			panic("asynsend: senda failed: %d", r);
-
-		dst_ind= 0;
-		for (src_ind= first_slot; src_ind<next_slot; src_ind++)
-		{
-			flags= msgtable[src_ind].flags;
-			if ((flags & (AMF_VALID|AMF_DONE)) ==
-				(AMF_VALID|AMF_DONE))
-			{
-				if (msgtable[src_ind].result != OK)
-				{
-					printf(
-			"asynsend: found completed entry %d with error %d\n",
-						src_ind,
-						msgtable[src_ind].result);
-				}
-				continue;
-			}
-			if (flags == AMF_EMPTY)
-				continue;
-#if 0
-			printf("asynsend: copying entry %d to %d\n",
-				src_ind, dst_ind);
-#endif
-			if (src_ind != dst_ind)
-				msgtable[dst_ind]= msgtable[src_ind];
-			dst_ind++;
-		}
-		first_slot= 0;
-		next_slot= dst_ind;
-		if (next_slot >= ASYN_NR)
-			panic("asynsend: msgtable full");
-	}
-
-	msgtable[next_slot].dst= dst;
-	msgtable[next_slot].msg= *mp;
-	msgtable[next_slot].flags= AMF_VALID;	/* Has to be last. The kernel 
-					 	 * scans this table while we
-						 * are sleeping.
-					 	 */
-	next_slot++;
-
-	/* Tell the kernel to rescan the table */
-	return senda(msgtable+first_slot, next_slot-first_slot);
-}
-#endif
-