Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6:
  [MTD] NAND: Select chip before checking write protect status
  [MTD] CORE mtdchar.c: fix off-by-one error in lseek()
  [MTD] NAND: Fix typo in mtd/nand/ts7250.c
  [JFFS2][XATTR] coexistence between xattr and write buffering support.
  [JFFS2][XATTR] Fix wrong copyright
  [JFFS2][XATTR] Re-define xd->refcnt as atomic_t
  [JFFS2][XATTR] Fix memory leak with jffs2_xattr_ref
  [JFFS2][XATTR] rid unnecessary writing of delete marker.
  [JFFS2][XATTR] Fix ACL bug when updating null xattr by null ACL.
  [JFFS2][XATTR] using 'delete marker' for xdatum/xref deletion
  [MTD] Fix off-by-one error in physmap.c
  [MTD] Remove unused 'nr_banks' variable from ixp2000 map driver
  [MTD NAND] s3c2412 support in s3c2410.c
  [MTD] Initialize 'writesize'
  [MTD] NAND: ndfc fix address offset thinko
  [MTD] NAND: S3C2410 convert prinks to dev_*()s
  [MTD] NAND: Missing fixups

1 files changed, 15 insertions, 26 deletions

diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index be1acc3dad97..c19bd476e8ec 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -5,7 +5,7 @@
  *                     Zoltan Sogor <weth@inf.u-szeged.hu>,
  *                     Patrik Kluba <pajko@halom.u-szeged.hu>,
  *                     University of Szeged, Hungary
- *               2005  KaiGai Kohei <kaigai@ak.jp.nec.com>
+ *               2006  KaiGai Kohei <kaigai@ak.jp.nec.com>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
@@ -310,8 +310,6 @@ int jffs2_sum_add_kvec(struct jffs2_sb_info *c, const struct kvec *invecs,
 #ifdef CONFIG_JFFS2_FS_XATTR
                 case JFFS2_NODETYPE_XATTR: {
                         struct jffs2_sum_xattr_mem *temp;
-                        if (je32_to_cpu(node->x.version) == 0xffffffff)
-                                return 0;
                         temp = kmalloc(sizeof(struct jffs2_sum_xattr_mem), GFP_KERNEL);
                         if (!temp)
                                 goto no_mem;
@@ -327,10 +325,6 @@ int jffs2_sum_add_kvec(struct jffs2_sb_info *c, const struct kvec *invecs,
                 }
                 case JFFS2_NODETYPE_XREF: {
                         struct jffs2_sum_xref_mem *temp;
-
-                        if (je32_to_cpu(node->r.ino) == 0xffffffff
-                            && je32_to_cpu(node->r.xid) == 0xffffffff)
-                                return 0;
                         temp = kmalloc(sizeof(struct jffs2_sum_xref_mem), GFP_KERNEL);
                         if (!temp)
                                 goto no_mem;
@@ -483,22 +477,20 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
 
                                 xd = jffs2_setup_xattr_datum(c, je32_to_cpu(spx->xid),
                                                                 je32_to_cpu(spx->version));
-                                if (IS_ERR(xd)) {
-                                        if (PTR_ERR(xd) == -EEXIST) {
-                                                /* a newer version of xd exists */
-                                                if ((err = jffs2_scan_dirty_space(c, jeb, je32_to_cpu(spx->totlen))))
-                                                        return err;
-                                                sp += JFFS2_SUMMARY_XATTR_SIZE;
-                                                break;
-                                        }
-                                        JFFS2_NOTICE("allocation of xattr_datum failed\n");
+                                if (IS_ERR(xd))
                                         return PTR_ERR(xd);
+                                if (xd->version > je32_to_cpu(spx->version)) {
+                                        /* node is not the newest one */
+                                        struct jffs2_raw_node_ref *raw
+                                                = sum_link_node_ref(c, jeb, je32_to_cpu(spx->offset) | REF_UNCHECKED,
+                                                                    PAD(je32_to_cpu(spx->totlen)), NULL);
+                                        raw->next_in_ino = xd->node->next_in_ino;
+                                        xd->node->next_in_ino = raw;
+                                } else {
+                                        xd->version = je32_to_cpu(spx->version);
+                                        sum_link_node_ref(c, jeb, je32_to_cpu(spx->offset) | REF_UNCHECKED,
+                                                          PAD(je32_to_cpu(spx->totlen)), (void *)xd);
                                 }
-
-                                xd->node = sum_link_node_ref(c, jeb, je32_to_cpu(spx->offset) | REF_UNCHECKED,
-                                                             PAD(je32_to_cpu(spx->totlen)), NULL);
-                                /* FIXME */ xd->node->next_in_ino = (void *)xd;
-
                                 *pseudo_random += je32_to_cpu(spx->xid);
                                 sp += JFFS2_SUMMARY_XATTR_SIZE;
 
@@ -519,14 +511,11 @@ static int jffs2_sum_process_sum_data(struct jffs2_sb_info *c, struct jffs2_eras
                                         JFFS2_NOTICE("allocation of xattr_datum failed\n");
                                         return -ENOMEM;
                                 }
-                                ref->ino = 0xfffffffe;
-                                ref->xid = 0xfffffffd;
                                 ref->next = c->xref_temp;
                                 c->xref_temp = ref;
 
-                                ref->node = sum_link_node_ref(c, jeb, je32_to_cpu(spr->offset) | REF_UNCHECKED,
-                                                              PAD(sizeof(struct jffs2_raw_xref)), NULL);
-                                /* FIXME */ ref->node->next_in_ino = (void *)ref;
+                                sum_link_node_ref(c, jeb, je32_to_cpu(spr->offset) | REF_UNCHECKED,
+                                                  PAD(sizeof(struct jffs2_raw_xref)), (void *)ref);
 
                                 *pseudo_random += ref->node->flash_offset;
                                 sp += JFFS2_SUMMARY_XREF_SIZE;