[readdir] convert adfs

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

diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index 9cf874ce8336563b1d50d3276fab9832e977b781..ade28bb058e311dc3b2f120e2405884c4e090f7d 100644 (file)
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -17,47 +17,43 @@
 static DEFINE_RWLOCK(adfs_dir_lock);
 
 static int
-adfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
+adfs_readdir(struct file *file, struct dir_context *ctx)
 {
-       struct inode *inode = file_inode(filp);
+       struct inode *inode = file_inode(file);
        struct super_block *sb = inode->i_sb;
        struct adfs_dir_ops *ops = ADFS_SB(sb)->s_dir;
        struct object_info obj;
        struct adfs_dir dir;
        int ret = 0;
 
-       if (filp->f_pos >> 32)
-               goto out;
+       if (ctx->pos >> 32)
+               return 0;
 
        ret = ops->read(sb, inode->i_ino, inode->i_size, &dir);
        if (ret)
-               goto out;
+               return ret;
 
-       switch ((unsigned long)filp->f_pos) {
-       case 0:
-               if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
+       if (ctx->pos == 0) {
+               if (!dir_emit_dot(file, ctx))
                        goto free_out;
-               filp->f_pos += 1;
-
-       case 1:
-               if (filldir(dirent, "..", 2, 1, dir.parent_id, DT_DIR) < 0)
+               ctx->pos = 1;
+       }
+       if (ctx->pos == 1) {
+               if (!dir_emit(ctx, "..", 2, dir.parent_id, DT_DIR))
                        goto free_out;
-               filp->f_pos += 1;
-
-       default:
-               break;
+               ctx->pos = 2;
        }
 
        read_lock(&adfs_dir_lock);
 
-       ret = ops->setpos(&dir, filp->f_pos - 2);
+       ret = ops->setpos(&dir, ctx->pos - 2);
        if (ret)
                goto unlock_out;
        while (ops->getnext(&dir, &obj) == 0) {
-               if (filldir(dirent, obj.name, obj.name_len,
-                           filp->f_pos, obj.file_id, DT_UNKNOWN) < 0)
-                       goto unlock_out;
-               filp->f_pos += 1;
+               if (!dir_emit(ctx, obj.name, obj.name_len,
+                           obj.file_id, DT_UNKNOWN))
+                       break;
+               ctx->pos++;
        }
 
 unlock_out:
@@ -65,8 +61,6 @@ unlock_out:
 
 free_out:
        ops->free(&dir);
-
-out:
        return ret;
 }
 
@@ -192,7 +186,7 @@ out:
 const struct file_operations adfs_dir_operations = {
        .read           = generic_read_dir,
        .llseek         = generic_file_llseek,
-       .readdir        = adfs_readdir,
+       .iterate        = adfs_readdir,
        .fsync          = generic_file_fsync,
 };