summaryrefslogtreecommitdiffstats
path: root/fs/jffs2/pushpull.h
diff options
context:
space:
mode:
Diffstat (limited to 'fs/jffs2/pushpull.h')
-rw-r--r--fs/jffs2/pushpull.h72
1 files changed, 0 insertions, 72 deletions
diff --git a/fs/jffs2/pushpull.h b/fs/jffs2/pushpull.h
deleted file mode 100644
index c0c2a91..0000000
--- a/fs/jffs2/pushpull.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * JFFS2 -- Journalling Flash File System, Version 2.
- *
- * Copyright (C) 2001, 2002 Red Hat, Inc.
- *
- * Created by David Woodhouse <dwmw2@infradead.org>
- *
- * For licensing information, see the file 'LICENCE' in this directory.
- *
- * $Id: pushpull.h,v 1.10 2004/11/16 20:36:11 dwmw2 Exp $
- *
- */
-
-#ifndef __PUSHPULL_H__
-#define __PUSHPULL_H__
-
-#include <linux/errno.h>
-
-struct pushpull {
- unsigned char *buf;
- unsigned int buflen;
- unsigned int ofs;
- unsigned int reserve;
-};
-
-
-static inline void init_pushpull(struct pushpull *pp, char *buf, unsigned buflen, unsigned ofs, unsigned reserve)
-{
- pp->buf = buf;
- pp->buflen = buflen;
- pp->ofs = ofs;
- pp->reserve = reserve;
-}
-
-static inline int pushbit(struct pushpull *pp, int bit, int use_reserved)
-{
- if (pp->ofs >= pp->buflen - (use_reserved?0:pp->reserve)) {
- return -ENOSPC;
- }
-
- if (bit) {
- pp->buf[pp->ofs >> 3] |= (1<<(7-(pp->ofs &7)));
- }
- else {
- pp->buf[pp->ofs >> 3] &= ~(1<<(7-(pp->ofs &7)));
- }
- pp->ofs++;
-
- return 0;
-}
-
-static inline int pushedbits(struct pushpull *pp)
-{
- return pp->ofs;
-}
-
-static inline int pullbit(struct pushpull *pp)
-{
- int bit;
-
- bit = (pp->buf[pp->ofs >> 3] >> (7-(pp->ofs & 7))) & 1;
-
- pp->ofs++;
- return bit;
-}
-
-static inline int pulledbits(struct pushpull *pp)
-{
- return pp->ofs;
-}
-
-#endif /* __PUSHPULL_H__ */
OpenPOWER on IntegriCloud