linux-kernel - [PATCH 70/73] fallthru: ext2 support for lookup of d_type/d

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Date:	Tue, 21 Feb 2012 18:06:21 +0000
From:	David Howells <dhowells@...hat.com>
To:	linux-fsdevel@...r.kernel.org, viro@...IV.linux.org.uk,
	valerie.aurora@...il.com
Cc:	linux-kernel@...r.kernel.org,
	David Howells <dhowells@...hat.com> (Further development)
Subject: [PATCH 70/73] fallthru: ext2 support for lookup of d_type/d_ino in
 fallthrus [ver #2]

Now that we have full union lookup support, lookup the true d_type and
d_ino of a fallthru.

Original-author: Valerie Aurora <vaurora@...hat.com>
Signed-off-by: David Howells <dhowells@...hat.com> (Further development)
---

 fs/ext2/dir.c |   20 +++++++++++++-------
 1 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 5fd6bbe..a509096 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -366,15 +366,21 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir)
 				}
 			} else if (de->file_type == EXT2_FT_FALLTHRU) {
 				int over;
+				unsigned char d_type = DT_UNKNOWN;
+				ino_t ino;
+				int err;
 
 				offset = (char *)de - kaddr;
-				/* XXX placeholder until generic_readdir_fallthru() arrives */
-				over = filldir(dirent, de->name, de->name_len,
-					       (n<<PAGE_CACHE_SHIFT) | offset,
-					       1, DT_UNKNOWN); /* XXX */
-				if (over) {
-					ext2_put_page(page);
-					return 0;
+				err = generic_readdir_fallthru(filp->f_path.dentry, de->name,
+							       de->name_len, &ino, &d_type);
+				if (!err) {
+					over = filldir(dirent, de->name, de->name_len,
+						       (n<<PAGE_CACHE_SHIFT) | offset,
+						       ino, d_type);
+					if (over) {
+						ext2_put_page(page);
+						return 0;
+					}
 				}
 			}
 			filp->f_pos += ext2_rec_len_from_disk(de->rec_len);

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