Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / coda / symlink.c

diff --git a/kernel/fs/coda/symlink.c b/kernel/fs/coda/symlink.c
new file mode 100644 (file)
index 0000000..ab94ef6
--- /dev/null
+++ b/kernel/fs/coda/symlink.c
@@ -0,0 +1,50 @@
+/*
+ * Symlink inode operations for Coda filesystem
+ * Original version: (C) 1996 P. Braam and M. Callahan
+ * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
+ * 
+ * Carnegie Mellon encourages users to contribute improvements to
+ * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/pagemap.h>
+
+#include <linux/coda.h>
+#include <linux/coda_psdev.h>
+
+#include "coda_linux.h"
+
+static int coda_symlink_filler(struct file *file, struct page *page)
+{
+       struct inode *inode = page->mapping->host;
+       int error;
+       struct coda_inode_info *cii;
+       unsigned int len = PAGE_SIZE;
+       char *p = kmap(page);
+
+       cii = ITOC(inode);
+
+       error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
+       if (error)
+               goto fail;
+       SetPageUptodate(page);
+       kunmap(page);
+       unlock_page(page);
+       return 0;
+
+fail:
+       SetPageError(page);
+       kunmap(page);
+       unlock_page(page);
+       return error;
+}
+
+const struct address_space_operations coda_symlink_aops = {
+       .readpage       = coda_symlink_filler,
+};