Merge branch 'master' into csb1725

[mv-sheeva.git] / drivers / staging / smbfs / symlink.c

diff --git a/drivers/staging/smbfs/symlink.c b/drivers/staging/smbfs/symlink.c
new file mode 100644 (file)
index 0000000..632c4ac
--- /dev/null
+++ b/drivers/staging/smbfs/symlink.c
@@ -0,0 +1,67 @@
+/*
+ *  symlink.c
+ *
+ *  Copyright (C) 2002 by John Newbigin
+ *
+ *  Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/net.h>
+#include <linux/namei.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include "smbno.h"
+#include "smb_fs.h"
+#include "smb_debug.h"
+#include "proto.h"
+
+int smb_symlink(struct inode *inode, struct dentry *dentry, const char *oldname)
+{
+       DEBUG1("create symlink %s -> %s/%s\n", oldname, DENTRY_PATH(dentry));
+
+       return smb_proc_symlink(server_from_dentry(dentry), dentry, oldname);
+}
+
+static void *smb_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+       char *link = __getname();
+       DEBUG1("followlink of %s/%s\n", DENTRY_PATH(dentry));
+
+       if (!link) {
+               link = ERR_PTR(-ENOMEM);
+       } else {
+               int len = smb_proc_read_link(server_from_dentry(dentry),
+                                               dentry, link, PATH_MAX - 1);
+               if (len < 0) {
+                       __putname(link);
+                       link = ERR_PTR(len);
+               } else {
+                       link[len] = 0;
+               }
+       }
+       nd_set_link(nd, link);
+       return NULL;
+}
+
+static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
+{
+       char *s = nd_get_link(nd);
+       if (!IS_ERR(s))
+               __putname(s);
+}
+
+const struct inode_operations smb_link_inode_operations =
+{
+       .readlink       = generic_readlink,
+       .follow_link    = smb_follow_link,
+       .put_link       = smb_put_link,
+};