1 files changed, 0 insertions, 137 deletions
diff --git a/ANDROID_3.4.5/fs/dlm/midcomms.c b/ANDROID_3.4.5/fs/dlm/midcomms.c
deleted file mode 100644
index f3396c62..00000000
--- a/ANDROID_3.4.5/fs/dlm/midcomms.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/******************************************************************************
-*******************************************************************************
-**
-**  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
-**
-**  This copyrighted material is made available to anyone wishing to use,
-**  modify, copy, or redistribute it subject to the terms and conditions
-**  of the GNU General Public License v.2.
-**
-*******************************************************************************
-******************************************************************************/
-
-/*
- * midcomms.c
- *
- * This is the appallingly named "mid-level" comms layer.
- *
- * Its purpose is to take packets from the "real" comms layer,
- * split them up into packets and pass them to the interested
- * part of the locking mechanism.
- *
- * It also takes messages from the locking layer, formats them
- * into packets and sends them to the comms layer.
- */
-
-#include "dlm_internal.h"
-#include "lowcomms.h"
-#include "config.h"
-#include "lock.h"
-#include "midcomms.h"
-
-
-static void copy_from_cb(void *dst, const void *base, unsigned offset,
-			 unsigned len, unsigned limit)
-{
-	unsigned copy = len;
-
-	if ((copy + offset) > limit)
-		copy = limit - offset;
-	memcpy(dst, base + offset, copy);
-	len -= copy;
-	if (len)
-		memcpy(dst + copy, base, len);
-}
-
-/*
- * Called from the low-level comms layer to process a buffer of
- * commands.
- *
- * Only complete messages are processed here, any "spare" bytes from
- * the end of a buffer are saved and tacked onto the front of the next
- * message that comes in. I doubt this will happen very often but we
- * need to be able to cope with it and I don't want the task to be waiting
- * for packets to come in when there is useful work to be done.
- */
-
-int dlm_process_incoming_buffer(int nodeid, const void *base,
-				unsigned offset, unsigned len, unsigned limit)
-{
-	union {
-		unsigned char __buf[DLM_INBUF_LEN];
-		/* this is to force proper alignment on some arches */
-		union dlm_packet p;
-	} __tmp;
-	union dlm_packet *p = &__tmp.p;
-	int ret = 0;
-	int err = 0;
-	uint16_t msglen;
-	uint32_t lockspace;
-
-	while (len > sizeof(struct dlm_header)) {
-
-		/* Copy just the header to check the total length.  The
-		   message may wrap around the end of the buffer back to the
-		   start, so we need to use a temp buffer and copy_from_cb. */
-
-		copy_from_cb(p, base, offset, sizeof(struct dlm_header),
-			     limit);
-
-		msglen = le16_to_cpu(p->header.h_length);
-		lockspace = p->header.h_lockspace;
-
-		err = -EINVAL;
-		if (msglen < sizeof(struct dlm_header))
-			break;
-		if (p->header.h_cmd == DLM_MSG) {
-			if (msglen < sizeof(struct dlm_message))
-				break;
-		} else {
-			if (msglen < sizeof(struct dlm_rcom))
-				break;
-		}
-		err = -E2BIG;
-		if (msglen > dlm_config.ci_buffer_size) {
-			log_print("message size %d from %d too big, buf len %d",
-				  msglen, nodeid, len);
-			break;
-		}
-		err = 0;
-
-		/* If only part of the full message is contained in this
-		   buffer, then do nothing and wait for lowcomms to call
-		   us again later with more data.  We return 0 meaning
-		   we've consumed none of the input buffer. */
-
-		if (msglen > len)
-			break;
-
-		/* Allocate a larger temp buffer if the full message won't fit
-		   in the buffer on the stack (which should work for most
-		   ordinary messages). */
-
-		if (msglen > sizeof(__tmp) && p == &__tmp.p) {
-			p = kmalloc(dlm_config.ci_buffer_size, GFP_NOFS);
-			if (p == NULL)
-				return ret;
-		}
-
-		copy_from_cb(p, base, offset, msglen, limit);
-
-		BUG_ON(lockspace != p->header.h_lockspace);
-
-		ret += msglen;
-		offset += msglen;
-		offset &= (limit - 1);
-		len -= msglen;
-
-		dlm_receive_buffer(p, nodeid);
-	}
-
-	if (p != &__tmp.p)
-		kfree(p);
-
-	return err ? err : ret;
-}
-