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authorlefranc2009-03-19 08:34:57 +0000
committerlefranc2009-03-19 08:34:57 +0000
commitade8df59a0d7d3ac394b61f3096b5963d18dcfcc (patch)
tree486cec51f00d138ab08352a6f5611f4a0323b1ca /cleopatre/linux-2.6.25.10-spc300/include/linux/namei.h
parenta49226f2d9f26b70584f3bea9388e2d753663c91 (diff)
[kernel] changed linux-2.6.25.10 to linux-2.6.25.10-spc300
[bundle] add bundle creation functionnality git-svn-id: svn+ssh://pessac/svn/cesar/trunk@4255 017c9cb6-072f-447c-8318-d5b54f68fe89
Diffstat (limited to 'cleopatre/linux-2.6.25.10-spc300/include/linux/namei.h')
-rw-r--r--cleopatre/linux-2.6.25.10-spc300/include/linux/namei.h96
1 files changed, 96 insertions, 0 deletions
diff --git a/cleopatre/linux-2.6.25.10-spc300/include/linux/namei.h b/cleopatre/linux-2.6.25.10-spc300/include/linux/namei.h
new file mode 100644
index 0000000000..24d88e98a6
--- /dev/null
+++ b/cleopatre/linux-2.6.25.10-spc300/include/linux/namei.h
@@ -0,0 +1,96 @@
+#ifndef _LINUX_NAMEI_H
+#define _LINUX_NAMEI_H
+
+#include <linux/dcache.h>
+#include <linux/linkage.h>
+#include <linux/path.h>
+
+struct vfsmount;
+
+struct open_intent {
+ int flags;
+ int create_mode;
+ struct file *file;
+};
+
+enum { MAX_NESTED_LINKS = 8 };
+
+struct nameidata {
+ struct path path;
+ struct qstr last;
+ unsigned int flags;
+ int last_type;
+ unsigned depth;
+ char *saved_names[MAX_NESTED_LINKS + 1];
+
+ /* Intent data */
+ union {
+ struct open_intent open;
+ } intent;
+};
+
+/*
+ * Type of the last component on LOOKUP_PARENT
+ */
+enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
+
+/*
+ * The bitmask for a lookup event:
+ * - follow links at the end
+ * - require a directory
+ * - ending slashes ok even for nonexistent files
+ * - internal "there are more path compnents" flag
+ * - locked when lookup done with dcache_lock held
+ * - dentry cache is untrusted; force a real lookup
+ */
+#define LOOKUP_FOLLOW 1
+#define LOOKUP_DIRECTORY 2
+#define LOOKUP_CONTINUE 4
+#define LOOKUP_PARENT 16
+#define LOOKUP_NOALT 32
+#define LOOKUP_REVAL 64
+/*
+ * Intent data
+ */
+#define LOOKUP_OPEN (0x0100)
+#define LOOKUP_CREATE (0x0200)
+#define LOOKUP_ACCESS (0x0400)
+#define LOOKUP_CHDIR (0x0800)
+
+extern int __user_walk(const char __user *, unsigned, struct nameidata *);
+extern int __user_walk_fd(int dfd, const char __user *, unsigned, struct nameidata *);
+#define user_path_walk(name,nd) \
+ __user_walk_fd(AT_FDCWD, name, LOOKUP_FOLLOW, nd)
+#define user_path_walk_link(name,nd) \
+ __user_walk_fd(AT_FDCWD, name, 0, nd)
+extern int path_lookup(const char *, unsigned, struct nameidata *);
+extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
+ const char *, unsigned int, struct nameidata *);
+
+extern int __user_path_lookup_open(const char __user *, unsigned lookup_flags, struct nameidata *nd, int open_flags);
+extern int path_lookup_open(int dfd, const char *name, unsigned lookup_flags, struct nameidata *, int open_flags);
+extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
+ int (*open)(struct inode *, struct file *));
+extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
+extern void release_open_intent(struct nameidata *);
+
+extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
+extern struct dentry *lookup_one_noperm(const char *, struct dentry *);
+
+extern int follow_down(struct vfsmount **, struct dentry **);
+extern int follow_up(struct vfsmount **, struct dentry **);
+
+extern struct dentry *lock_rename(struct dentry *, struct dentry *);
+extern void unlock_rename(struct dentry *, struct dentry *);
+
+static inline void nd_set_link(struct nameidata *nd, char *path)
+{
+ nd->saved_names[nd->depth] = path;
+}
+
+static inline char *nd_get_link(struct nameidata *nd)
+{
+ return nd->saved_names[nd->depth];
+}
+
+#endif /* _LINUX_NAMEI_H */