[JFFS2] Deletion dirents should be REF_NORMAL, not REF_PRISTINE.

Otherwise they'll never actually get garbage-collected.
Noted by Jonathan Larmour.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

fs/jffs2/nodelist.h

diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index 25126a0..bc5509f 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -139,6 +139,11 @@
 #define ref_obsolete(ref)	(((ref)->flash_offset & 3) == REF_OBSOLETE)
 #define mark_ref_normal(ref)    do { (ref)->flash_offset = ref_offset(ref) | REF_NORMAL; } while(0)
 
+/* Dirent nodes should be REF_PRISTINE only if they are not a deletion
+   dirent. Deletion dirents should be REF_NORMAL so that GC gets to
+   throw them away when appropriate */
+#define dirent_node_state(rd)	( (je32_to_cpu((rd)->ino)?REF_PRISTINE:REF_NORMAL) )
+
 /* NB: REF_PRISTINE for an inode-less node (ref->next_in_ino == NULL) indicates
    it is an unknown node of type JFFS2_NODETYPE_RWCOMPAT_COPY, so it'll get
    copied. If you need to do anything different to GC inode-less nodes, then

fs/jffs2/readinode.c

diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 7b36378..170da20 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -613,7 +613,7 @@
 		jeb->unchecked_size -= len;
 		c->used_size += len;
 		c->unchecked_size -= len;
-		ref->flash_offset = ref_offset(ref) | REF_PRISTINE;
+		ref->flash_offset = ref_offset(ref) | dirent_node_state(rd);
 		spin_unlock(&c->erase_completion_lock);
 	}
 

fs/jffs2/scan.c

diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 2a1c976..6c75cd4 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -1049,7 +1049,8 @@
 		return -ENOMEM;
 	}
 
-	fd->raw = jffs2_link_node_ref(c, jeb, ofs | REF_PRISTINE, PAD(je32_to_cpu(rd->totlen)), ic);
+	fd->raw = jffs2_link_node_ref(c, jeb, ofs | dirent_node_state(rd),
+				      PAD(je32_to_cpu(rd->totlen)), ic);
 
 	fd->next = NULL;
 	fd->version = je32_to_cpu(rd->version);

fs/jffs2/write.c

diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c
index 1406f2ce..bc61859 100644
--- a/fs/jffs2/write.c
+++ b/fs/jffs2/write.c
@@ -296,7 +296,8 @@
 		return ERR_PTR(ret?ret:-EIO);
 	}
 	/* Mark the space used */
-	fd->raw = jffs2_add_physical_node_ref(c, flash_ofs | REF_PRISTINE, PAD(sizeof(*rd)+namelen), f->inocache);
+	fd->raw = jffs2_add_physical_node_ref(c, flash_ofs | dirent_node_state(rd),
+					      PAD(sizeof(*rd)+namelen), f->inocache);
 	if (IS_ERR(fd->raw)) {
 		void *hold_err = fd->raw;
 		/* Release the full_dirent which is now useless, and return */