1 /* 2 * Symlink inode operations for Coda filesystem 3 * Original version: (C) 1996 P. Braam and M. Callahan 4 * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University 5 * 6 * Carnegie Mellon encourages users to contribute improvements to 7 * the Coda project. Contact Peter Braam (coda@cs.cmu.edu). 8 */ 9 10 #include <linux/types.h> 11 #include <linux/kernel.h> 12 #include <linux/time.h> 13 #include <linux/fs.h> 14 #include <linux/stat.h> 15 #include <linux/errno.h> 16 #include <linux/pagemap.h> 17 18 #include <linux/coda.h> 19 #include <linux/coda_psdev.h> 20 21 #include "coda_linux.h" 22 23 static int coda_symlink_filler(struct file *file, struct page *page) 24 { 25 struct inode *inode = page->mapping->host; 26 int error; 27 struct coda_inode_info *cii; 28 unsigned int len = PAGE_SIZE; 29 char *p = kmap(page); 30 31 cii = ITOC(inode); 32 33 error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len); 34 if (error) 35 goto fail; 36 SetPageUptodate(page); 37 kunmap(page); 38 unlock_page(page); 39 return 0; 40 41 fail: 42 SetPageError(page); 43 kunmap(page); 44 unlock_page(page); 45 return error; 46 } 47 48 const struct address_space_operations coda_symlink_aops = { 49 .readpage = coda_symlink_filler, 50 }; 51