aio: fix misleading comments

The FIXME comments are inaccurate.
The locking comment over lookup_ioctx() is wrong.

Signed-off-by: Jeff Moyer <[e-mail]>
Signed-off-by: Zach Brown <[e-mail]>
Signed-off-by: Shen Feng <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

fs/aio.c

···
 	if (ctx->max_reqs == 0)
 		goto out_cleanup;
 
-	/* now link into global list.  kludge.  FIXME */
+	/* now link into global list. */
 	write_lock(&mm->ioctx_list_lock);
 	ctx->next = mm->ioctx_list;
 	mm->ioctx_list = ctx;
···
 	return ret;
 }
 
-/*	Lookup an ioctx id.  ioctx_list is lockless for reads.
- *	FIXME: this is O(n) and is only suitable for development.
- */
 static struct kioctx *lookup_ioctx(unsigned long ctx_id)
 {
 	struct kioctx *ioctx;