[readdir] introduce iterate_dir() and dir_context
iterate_dir(): new helper, replacing vfs_readdir().
struct dir_context: contains the readdir callback (and will get more stuff
in it), embedded into whatever data that callback wants to deal with;
eventually, we'll be passing it to ->readdir() replacement instead of
(data,filldir) pair.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 4e9a21d..4f8cc6b 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -263,7 +263,10 @@
{
const struct cred *original_cred;
struct dentry *dir = nn->rec_file->f_path.dentry;
- LIST_HEAD(names);
+ struct {
+ struct dir_context ctx;
+ struct list_head names;
+ } ctx;
int status;
status = nfs4_save_creds(&original_cred);
@@ -276,11 +279,13 @@
return status;
}
- status = vfs_readdir(nn->rec_file, nfsd4_build_namelist, &names);
+ INIT_LIST_HEAD(&ctx.names);
+ ctx.ctx.actor = nfsd4_build_namelist;
+ status = iterate_dir(nn->rec_file, &ctx.ctx);
mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
- while (!list_empty(&names)) {
+ while (!list_empty(&ctx.names)) {
struct name_list *entry;
- entry = list_entry(names.next, struct name_list, list);
+ entry = list_entry(ctx.names.next, struct name_list, list);
if (!status) {
struct dentry *dentry;
dentry = lookup_one_len(entry->name, dir, HEXDIR_LEN-1);