Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / jfs / jfs_xattr.h

diff --git a/kernel/fs/jfs/jfs_xattr.h b/kernel/fs/jfs/jfs_xattr.h
new file mode 100644 (file)
index 0000000..e8d717d
--- /dev/null
+++ b/kernel/fs/jfs/jfs_xattr.h
@@ -0,0 +1,77 @@
+/*
+ *   Copyright (C) International Business Machines Corp., 2000-2002
+ *
+ *   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 of the License, 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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef H_JFS_XATTR
+#define H_JFS_XATTR
+
+/*
+ * jfs_ea_list describe the on-disk format of the extended attributes.
+ * I know the null-terminator is redundant since namelen is stored, but
+ * I am maintaining compatibility with OS/2 where possible.
+ */
+struct jfs_ea {
+       u8 flag;        /* Unused? */
+       u8 namelen;     /* Length of name */
+       __le16 valuelen;        /* Length of value */
+       char name[0];   /* Attribute name (includes null-terminator) */
+};                     /* Value immediately follows name */
+
+struct jfs_ea_list {
+       __le32 size;            /* overall size */
+       struct jfs_ea ea[0];    /* Variable length list */
+};
+
+/* Macros for defining maxiumum number of bytes supported for EAs */
+#define MAXEASIZE      65535
+#define MAXEALISTSIZE  MAXEASIZE
+
+/*
+ * some macros for dealing with variable length EA lists.
+ */
+#define EA_SIZE(ea) \
+       (sizeof (struct jfs_ea) + (ea)->namelen + 1 + \
+        le16_to_cpu((ea)->valuelen))
+#define        NEXT_EA(ea) ((struct jfs_ea *) (((char *) (ea)) + (EA_SIZE (ea))))
+#define        FIRST_EA(ealist) ((ealist)->ea)
+#define        EALIST_SIZE(ealist) le32_to_cpu((ealist)->size)
+#define        END_EALIST(ealist) \
+       ((struct jfs_ea *) (((char *) (ealist)) + EALIST_SIZE(ealist)))
+
+extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *,
+                         size_t, int);
+extern int jfs_setxattr(struct dentry *, const char *, const void *, size_t,
+                       int);
+extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t);
+extern ssize_t jfs_getxattr(struct dentry *, const char *, void *, size_t);
+extern ssize_t jfs_listxattr(struct dentry *, char *, size_t);
+extern int jfs_removexattr(struct dentry *, const char *);
+
+extern const struct xattr_handler *jfs_xattr_handlers[];
+
+#ifdef CONFIG_JFS_SECURITY
+extern int jfs_init_security(tid_t, struct inode *, struct inode *,
+                            const struct qstr *);
+#else
+static inline int jfs_init_security(tid_t tid, struct inode *inode,
+                                   struct inode *dir, const struct qstr *qstr)
+{
+       return 0;
+}
+#endif
+
+#endif /* H_JFS_XATTR */