[readdir] convert jffs2

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index acd46a4160cb939262565fc3cf43d600c3cb8e20..e3aac222472e1f06e9d998f46323b4d8be0e1071 100644 (file)
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -22,7 +22,7 @@
 #include <linux/time.h>
 #include "nodelist.h"
 
-static int jffs2_readdir (struct file *, void *, filldir_t);
+static int jffs2_readdir (struct file *, struct dir_context *);
 
 static int jffs2_create (struct inode *,struct dentry *,umode_t,
                         bool);
@@ -40,7 +40,7 @@ static int jffs2_rename (struct inode *, struct dentry *,
 const struct file_operations jffs2_dir_operations =
 {
        .read =         generic_read_dir,
-       .readdir =      jffs2_readdir,
+       .iterate =      jffs2_readdir,
        .unlocked_ioctl=jffs2_ioctl,
        .fsync =        jffs2_fsync,
        .llseek =       generic_file_llseek,
@@ -114,60 +114,40 @@ static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
 /***********************************************************************/
 
 
-static int jffs2_readdir(struct file *filp, void *dirent, filldir_t filldir)
+static int jffs2_readdir(struct file *file, struct dir_context *ctx)
 {
-       struct jffs2_inode_info *f;
-       struct inode *inode = file_inode(filp);
+       struct inode *inode = file_inode(file);
+       struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
        struct jffs2_full_dirent *fd;
-       unsigned long offset, curofs;
+       unsigned long curofs = 1;
 
-       jffs2_dbg(1, "jffs2_readdir() for dir_i #%lu\n",
-                 file_inode(filp)->i_ino);
+       jffs2_dbg(1, "jffs2_readdir() for dir_i #%lu\n", inode->i_ino);
 
-       f = JFFS2_INODE_INFO(inode);
-
-       offset = filp->f_pos;
-
-       if (offset == 0) {
-               jffs2_dbg(1, "Dirent 0: \".\", ino #%lu\n", inode->i_ino);
-               if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
-                       goto out;
-               offset++;
-       }
-       if (offset == 1) {
-               unsigned long pino = parent_ino(filp->f_path.dentry);
-               jffs2_dbg(1, "Dirent 1: \"..\", ino #%lu\n", pino);
-               if (filldir(dirent, "..", 2, 1, pino, DT_DIR) < 0)
-                       goto out;
-               offset++;
-       }
+       if (!dir_emit_dots(file, ctx))
+               return 0;
 
-       curofs=1;
        mutex_lock(&f->sem);
        for (fd = f->dents; fd; fd = fd->next) {
-
                curofs++;
-               /* First loop: curofs = 2; offset = 2 */
-               if (curofs < offset) {
+               /* First loop: curofs = 2; pos = 2 */
+               if (curofs < ctx->pos) {
                        jffs2_dbg(2, "Skipping dirent: \"%s\", ino #%u, type %d, because curofs %ld < offset %ld\n",
-                                 fd->name, fd->ino, fd->type, curofs, offset);
+                                 fd->name, fd->ino, fd->type, curofs, (unsigned long)ctx->pos);
                        continue;
                }
                if (!fd->ino) {
                        jffs2_dbg(2, "Skipping deletion dirent \"%s\"\n",
                                  fd->name);
-                       offset++;
+                       ctx->pos++;
                        continue;
                }
                jffs2_dbg(2, "Dirent %ld: \"%s\", ino #%u, type %d\n",
-                         offset, fd->name, fd->ino, fd->type);
-               if (filldir(dirent, fd->name, strlen(fd->name), offset, fd->ino, fd->type) < 0)
+                         (unsigned long)ctx->pos, fd->name, fd->ino, fd->type);
+               if (!dir_emit(ctx, fd->name, strlen(fd->name), fd->ino, fd->type))
                        break;
-               offset++;
+               ctx->pos++;
        }
        mutex_unlock(&f->sem);
- out:
-       filp->f_pos = offset;
        return 0;
 }