[JFFS2] Fix write buffer retry case

Correction of retry case to avoid silent failure of rmdir
when jffs2_wbuf_recover GCs the previous entry (+ corresponding
dnode case).

Signed-off-by: Estelle Hammache <estelle.hammache@st.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 32 insertions, 1 deletions

diff --git a/fs/jffs2/write.c b/fs/jffs2/write.c
index 80a5db542629..32c1efaf6a0f 100644
--- a/fs/jffs2/write.c
+++ b/fs/jffs2/write.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: write.c,v 1.87 2004/11/16 20:36:12 dwmw2 Exp $
+ * $Id: write.c,v 1.88 2005/01/24 21:13:39 hammache Exp $
  *
  */
 
@@ -136,6 +136,21 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2
 	raw->__totlen = PAD(sizeof(*ri)+datalen);
 	raw->next_phys = NULL;
 
+	if ((alloc_mode!=ALLOC_GC) && (je32_to_cpu(ri->version) < f->highest_version))
+	{
+		if (! retried)
+		{
+			BUG();
+		}
+		else
+		{
+			D1(printk(KERN_DEBUG "jffs2_write_dnode : dnode_version %d,  highest version %d -> updating dnode\n", 
+					     je32_to_cpu(ri->version), f->highest_version));
+			ri->version = cpu_to_je32(++f->highest_version);
+			ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
+		}
+	}
+
 	ret = jffs2_flash_writev(c, vecs, cnt, flash_ofs, &retlen,
 				 (alloc_mode==ALLOC_GC)?0:f->inocache->ino);
 
@@ -280,6 +295,22 @@ struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jff
 	raw->__totlen = PAD(sizeof(*rd)+namelen);
 	raw->next_phys = NULL;
 
+	if ((alloc_mode!=ALLOC_GC) && (je32_to_cpu(rd->version) < f->highest_version))
+	{
+		if (! retried)
+		{
+			BUG();
+		}
+		else
+		{
+			D1(printk(KERN_DEBUG "jffs2_write_dirent : dirent_version %d,  highest version %d -> updating dirent\n", 
+					     je32_to_cpu(rd->version), f->highest_version));
+			rd->version = cpu_to_je32(++f->highest_version);
+			fd->version = je32_to_cpu(rd->version);
+			rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
+		}
+	}
+
 	ret = jffs2_flash_writev(c, vecs, 2, flash_ofs, &retlen,
 				 (alloc_mode==ALLOC_GC)?0:je32_to_cpu(rd->pino));
 	if (ret || (retlen != sizeof(*rd) + namelen)) {