Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / squashfs / decompressor.h

diff --git a/kernel/fs/squashfs/decompressor.h b/kernel/fs/squashfs/decompressor.h
new file mode 100644 (file)
index 0000000..a25713c
--- /dev/null
+++ b/kernel/fs/squashfs/decompressor.h
@@ -0,0 +1,61 @@
+#ifndef DECOMPRESSOR_H
+#define DECOMPRESSOR_H
+/*
+ * Squashfs - a compressed read only filesystem for Linux
+ *
+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ * Phillip Lougher <phillip@squashfs.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2,
+ * or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * decompressor.h
+ */
+
+struct squashfs_decompressor {
+       void    *(*init)(struct squashfs_sb_info *, void *);
+       void    *(*comp_opts)(struct squashfs_sb_info *, void *, int);
+       void    (*free)(void *);
+       int     (*decompress)(struct squashfs_sb_info *, void *,
+               struct buffer_head **, int, int, int,
+               struct squashfs_page_actor *);
+       int     id;
+       char    *name;
+       int     supported;
+};
+
+static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk,
+                                                       void *buff, int length)
+{
+       return msblk->decompressor->comp_opts ?
+               msblk->decompressor->comp_opts(msblk, buff, length) : NULL;
+}
+
+#ifdef CONFIG_SQUASHFS_XZ
+extern const struct squashfs_decompressor squashfs_xz_comp_ops;
+#endif
+
+#ifdef CONFIG_SQUASHFS_LZ4
+extern const struct squashfs_decompressor squashfs_lz4_comp_ops;
+#endif
+
+#ifdef CONFIG_SQUASHFS_LZO
+extern const struct squashfs_decompressor squashfs_lzo_comp_ops;
+#endif
+
+#ifdef CONFIG_SQUASHFS_ZLIB
+extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
+#endif
+
+#endif