Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

1 files changed, 156 insertions, 0 deletions

diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
new file mode 100644
index 0000000..af135ae
--- /dev/null
+++ b/include/linux/reiserfs_xattr.h
@@ -0,0 +1,156 @@
+/*
+  File: linux/reiserfs_xattr.h
+*/
+
+#ifndef _LINUX_REISERFS_XATTR_H
+#define _LINUX_REISERFS_XATTR_H
+
+#include <linux/types.h>
+
+/* Magic value in header */
+#define REISERFS_XATTR_MAGIC 0x52465841	/* "RFXA" */
+
+struct reiserfs_xattr_header {
+	__le32 h_magic;		/* magic number for identification */
+	__le32 h_hash;		/* hash of the value */
+};
+
+#ifdef __KERNEL__
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/rwsem.h>
+#include <linux/reiserfs_fs_i.h>
+#include <linux/reiserfs_fs.h>
+
+struct inode;
+struct dentry;
+struct iattr;
+struct super_block;
+struct nameidata;
+
+struct reiserfs_xattr_handler {
+	char *prefix;
+	int (*init) (void);
+	void (*exit) (void);
+	int (*get) (struct inode * inode, const char *name, void *buffer,
+		    size_t size);
+	int (*set) (struct inode * inode, const char *name, const void *buffer,
+		    size_t size, int flags);
+	int (*del) (struct inode * inode, const char *name);
+	int (*list) (struct inode * inode, const char *name, int namelen,
+		     char *out);
+	struct list_head handlers;
+};
+
+#ifdef CONFIG_REISERFS_FS_XATTR
+#define is_reiserfs_priv_object(inode) IS_PRIVATE(inode)
+#define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
+ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
+			  void *buffer, size_t size);
+int reiserfs_setxattr(struct dentry *dentry, const char *name,
+		      const void *value, size_t size, int flags);
+ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
+int reiserfs_removexattr(struct dentry *dentry, const char *name);
+int reiserfs_delete_xattrs(struct inode *inode);
+int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs);
+int reiserfs_xattr_init(struct super_block *sb, int mount_flags);
+int reiserfs_permission(struct inode *inode, int mask);
+
+int reiserfs_xattr_del(struct inode *, const char *);
+int reiserfs_xattr_get(const struct inode *, const char *, void *, size_t);
+int reiserfs_xattr_set(struct inode *, const char *, const void *, size_t, int);
+
+extern struct reiserfs_xattr_handler user_handler;
+extern struct reiserfs_xattr_handler trusted_handler;
+extern struct reiserfs_xattr_handler security_handler;
+
+int reiserfs_xattr_register_handlers(void) __init;
+void reiserfs_xattr_unregister_handlers(void);
+
+static inline void reiserfs_write_lock_xattrs(struct super_block *sb)
+{
+	down_write(&REISERFS_XATTR_DIR_SEM(sb));
+}
+static inline void reiserfs_write_unlock_xattrs(struct super_block *sb)
+{
+	up_write(&REISERFS_XATTR_DIR_SEM(sb));
+}
+static inline void reiserfs_read_lock_xattrs(struct super_block *sb)
+{
+	down_read(&REISERFS_XATTR_DIR_SEM(sb));
+}
+
+static inline void reiserfs_read_unlock_xattrs(struct super_block *sb)
+{
+	up_read(&REISERFS_XATTR_DIR_SEM(sb));
+}
+
+static inline void reiserfs_write_lock_xattr_i(struct inode *inode)
+{
+	down_write(&REISERFS_I(inode)->xattr_sem);
+}
+static inline void reiserfs_write_unlock_xattr_i(struct inode *inode)
+{
+	up_write(&REISERFS_I(inode)->xattr_sem);
+}
+static inline void reiserfs_read_lock_xattr_i(struct inode *inode)
+{
+	down_read(&REISERFS_I(inode)->xattr_sem);
+}
+
+static inline void reiserfs_read_unlock_xattr_i(struct inode *inode)
+{
+	up_read(&REISERFS_I(inode)->xattr_sem);
+}
+
+static inline void reiserfs_mark_inode_private(struct inode *inode)
+{
+	inode->i_flags |= S_PRIVATE;
+}
+
+static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
+{
+	init_rwsem(&REISERFS_I(inode)->xattr_sem);
+}
+
+#else
+
+#define is_reiserfs_priv_object(inode) 0
+#define reiserfs_mark_inode_private(inode) do {;} while(0)
+#define reiserfs_getxattr NULL
+#define reiserfs_setxattr NULL
+#define reiserfs_listxattr NULL
+#define reiserfs_removexattr NULL
+#define reiserfs_write_lock_xattrs(sb) do {;} while(0)
+#define reiserfs_write_unlock_xattrs(sb) do {;} while(0)
+#define reiserfs_read_lock_xattrs(sb)
+#define reiserfs_read_unlock_xattrs(sb)
+
+#define reiserfs_permission NULL
+
+#define reiserfs_xattr_register_handlers() 0
+#define reiserfs_xattr_unregister_handlers()
+
+static inline int reiserfs_delete_xattrs(struct inode *inode)
+{
+	return 0;
+};
+static inline int reiserfs_chown_xattrs(struct inode *inode,
+					struct iattr *attrs)
+{
+	return 0;
+};
+static inline int reiserfs_xattr_init(struct super_block *sb, int mount_flags)
+{
+	sb->s_flags = (sb->s_flags & ~MS_POSIXACL);	/* to be sure */
+	return 0;
+};
+static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
+{
+}
+#endif  /*  CONFIG_REISERFS_FS_XATTR  */
+
+#endif  /*  __KERNEL__  */
+
+#endif  /*  _LINUX_REISERFS_XATTR_H  */