Prepare SPL repo to merge with ZFS repo

This commit removes everything from the repository except the core
SPL implementation for Linux.  Those files which remain have been
moved to non-conflicting locations to facilitate the merge.
The README.md and associated files have been updated accordingly.

Signed-off-by: Brian Behlendorf <[email protected]>

1 files changed, 42 insertions, 0 deletions

diff --git a/include/spl/sys/user.h b/include/spl/sys/user.h
new file mode 100644
index 000000000..b12cb240e
--- /dev/null
+++ b/include/spl/sys/user.h
@@ -0,0 +1,42 @@
+/*
+ *  Copyright (C) 2015 Cluster Inc.
+ *  Produced at ClusterHQ Inc (cf, DISCLAIMER).
+ *  Written by Richard Yao <[email protected]>.
+ *
+ *  This file is part of the SPL, Solaris Porting Layer.
+ *  For details, see <http://zfsonlinux.org/>.
+ *
+ *  The SPL 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 of the License, or (at your
+ *  option) any later version.
+ *
+ *  The SPL 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 the SPL.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SPL_USER_H
+#define	_SPL_USER_H
+
+/*
+ * We have uf_info_t for areleasef(). We implement areleasef() using a global
+ * linked list of all open file descriptors with the task structs referenced,
+ * so accessing the correct descriptor from areleasef() only requires knowing
+ * about the Linux task_struct. Since this is internal to our compatibility
+ * layer, we make it an opaque type.
+ *
+ * XXX: If the descriptor changes under us and we do not do a getf() between
+ * the change and using it, we would get an incorrect reference.
+ */
+
+struct uf_info;
+typedef struct uf_info uf_info_t;
+
+#define	P_FINFO(x) ((uf_info_t *)x)
+
+#endif /* SPL_USER_H */