From 0d04f878ccdbb5de7e80d36bb929198c4aabf7b1 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 17 Nov 2006 12:27:44 -0500
Subject: [PATCH] --- yaml --- r: 43295 b: refs/heads/master c:
 5e7d65cd9d3819512b059f4260de0119b985454c h: refs/heads/master i:   43293:
 303b6f410b335188d90e291940585d3d0822f069   43291:
 2e5afef109edbf7faf43f01136856af7a5906733   43287:
 6a3be6c92626b07dec5d486277f0086bebc698e6   43279:
 36ca3cae4bd98879a39dfac648068a26737e6a58   43263:
 1dbcf7488b7b5a18170d2d55543fe63b24a0ab2f v: v3

---
 [refs]              |  2 +-
 trunk/fs/gfs2/dir.c | 26 ++++++++++++++++----------
 2 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/[refs] b/[refs]
index e5e5e77f0dcd..ea83c47847c0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dcd2479959c79d44f5dd77e71672e70f1f8b1f06
+refs/heads/master: 5e7d65cd9d3819512b059f4260de0119b985454c
diff --git a/trunk/fs/gfs2/dir.c b/trunk/fs/gfs2/dir.c
index a2923fb91bba..0fdcb7713cd9 100644
--- a/trunk/fs/gfs2/dir.c
+++ b/trunk/fs/gfs2/dir.c
@@ -340,10 +340,15 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset,
 	return (copied) ? copied : error;
 }
 
+static inline int gfs2_dirent_sentinel(const struct gfs2_dirent *dent)
+{
+	return dent->de_inum.no_addr == 0 || dent->de_inum.no_formal_ino == 0;
+}
+
 static inline int __gfs2_dirent_find(const struct gfs2_dirent *dent,
 				     const struct qstr *name, int ret)
 {
-	if (dent->de_inum.no_addr != 0 &&
+	if (!gfs2_dirent_sentinel(dent) &&
 	    be32_to_cpu(dent->de_hash) == name->hash &&
 	    be16_to_cpu(dent->de_name_len) == name->len &&
 	    memcmp(dent+1, name->name, name->len) == 0)
@@ -388,7 +393,7 @@ static int gfs2_dirent_find_space(const struct gfs2_dirent *dent,
 	unsigned actual = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len));
 	unsigned totlen = be16_to_cpu(dent->de_rec_len);
 
-	if (!dent->de_inum.no_addr)
+	if (gfs2_dirent_sentinel(dent))
 		actual = GFS2_DIRENT_SIZE(0);
 	if (totlen - actual >= required)
 		return 1;
@@ -405,7 +410,7 @@ static int gfs2_dirent_gather(const struct gfs2_dirent *dent,
 			      void *opaque)
 {
 	struct dirent_gather *g = opaque;
-	if (dent->de_inum.no_addr) {
+	if (!gfs2_dirent_sentinel(dent)) {
 		g->pdent[g->offset++] = dent;
 	}
 	return 0;
@@ -433,10 +438,10 @@ static int gfs2_check_dirent(struct gfs2_dirent *dent, unsigned int offset,
 	if (unlikely(offset + size > len))
 		goto error;
 	msg = "zero inode number";
-	if (unlikely(!first && !dent->de_inum.no_addr))
+	if (unlikely(!first && gfs2_dirent_sentinel(dent)))
 		goto error;
 	msg = "name length is greater than space in dirent";
-	if (dent->de_inum.no_addr &&
+	if (!gfs2_dirent_sentinel(dent) &&
 	    unlikely(sizeof(struct gfs2_dirent)+be16_to_cpu(dent->de_name_len) >
 		     size))
 		goto error;
@@ -598,7 +603,7 @@ static int dirent_next(struct gfs2_inode *dip, struct buffer_head *bh,
 		return ret;
 
         /* Only the first dent could ever have de_inum.no_addr == 0 */
-	if (!tmp->de_inum.no_addr) {
+	if (gfs2_dirent_sentinel(tmp)) {
 		gfs2_consist_inode(dip);
 		return -EIO;
 	}
@@ -621,7 +626,7 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh,
 {
 	u16 cur_rec_len, prev_rec_len;
 
-	if (!cur->de_inum.no_addr) {
+	if (gfs2_dirent_sentinel(cur)) {
 		gfs2_consist_inode(dip);
 		return;
 	}
@@ -633,7 +638,8 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh,
 	   out the inode number and return.  */
 
 	if (!prev) {
-		cur->de_inum.no_addr = 0;	/* No endianess worries */
+		cur->de_inum.no_addr = 0;
+		cur->de_inum.no_formal_ino = 0;
 		return;
 	}
 
@@ -664,7 +670,7 @@ static struct gfs2_dirent *gfs2_init_dirent(struct inode *inode,
 	struct gfs2_dirent *ndent;
 	unsigned offset = 0, totlen;
 
-	if (dent->de_inum.no_addr)
+	if (!gfs2_dirent_sentinel(dent))
 		offset = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len));
 	totlen = be16_to_cpu(dent->de_rec_len);
 	BUG_ON(offset + name->len > totlen);
@@ -1002,7 +1008,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
 		if (dirent_next(dip, obh, &next))
 			next = NULL;
 
-		if (dent->de_inum.no_addr &&
+		if (!gfs2_dirent_sentinel(dent) &&
 		    be32_to_cpu(dent->de_hash) < divider) {
 			struct qstr str;
 			str.name = (char*)(dent+1);