[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/exportfs/expfs.c b/fs/exportfs/expfs.c
index 262fc99..7cb1904 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -212,6 +212,7 @@
}
struct getdents_callback {
+ struct dir_context ctx;
char *name; /* name that was found. It already points to a
buffer NAME_MAX+1 is size */
unsigned long ino; /* the inum we are looking for */
@@ -278,10 +279,11 @@
buffer.ino = child->d_inode->i_ino;
buffer.found = 0;
buffer.sequence = 0;
+ buffer.ctx.actor = filldir_one;
while (1) {
int old_seq = buffer.sequence;
- error = vfs_readdir(file, filldir_one, &buffer);
+ error = iterate_dir(file, &buffer.ctx);
if (buffer.found) {
error = 0;
break;