Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus
[pandora-kernel.git] / fs / ubifs / lprops.c
index 0ee0847..f8a181e 100644 (file)
@@ -504,7 +504,7 @@ static int is_lprops_dirty(struct ubifs_info *c, struct ubifs_lprops *lprops)
        pnode = (struct ubifs_pnode *)container_of(lprops - pos,
                                                   struct ubifs_pnode,
                                                   lprops[0]);
-       return !test_bit(COW_ZNODE, &pnode->flags) &&
+       return !test_bit(COW_CNODE, &pnode->flags) &&
               test_bit(DIRTY_CNODE, &pnode->flags);
 }
 
@@ -860,7 +860,7 @@ int dbg_check_cats(struct ubifs_info *c)
        struct list_head *pos;
        int i, cat;
 
-       if (!(ubifs_chk_flags & (UBIFS_CHK_GEN | UBIFS_CHK_LPROPS)))
+       if (!dbg_is_chk_gen(c) && !dbg_is_chk_lprops(c))
                return 0;
 
        list_for_each_entry(lprops, &c->empty_list, list) {
@@ -958,7 +958,7 @@ void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat,
 {
        int i = 0, j, err = 0;
 
-       if (!(ubifs_chk_flags & (UBIFS_CHK_GEN | UBIFS_CHK_LPROPS)))
+       if (!dbg_is_chk_gen(c) && !dbg_is_chk_lprops(c))
                return;
 
        for (i = 0; i < heap->cnt; i++) {
@@ -1006,22 +1006,12 @@ out:
        }
 }
 
-/**
- * struct scan_check_data - data provided to scan callback function.
- * @lst: LEB properties statistics
- * @err: error code
- */
-struct scan_check_data {
-       struct ubifs_lp_stats lst;
-       int err;
-};
-
 /**
  * scan_check_cb - scan callback.
  * @c: the UBIFS file-system description object
  * @lp: LEB properties to scan
  * @in_tree: whether the LEB properties are in main memory
- * @data: information passed to and from the caller of the scan
+ * @lst: lprops statistics to update
  *
  * This function returns a code that indicates whether the scan should continue
  * (%LPT_SCAN_CONTINUE), whether the LEB properties should be added to the tree
@@ -1030,11 +1020,10 @@ struct scan_check_data {
  */
 static int scan_check_cb(struct ubifs_info *c,
                         const struct ubifs_lprops *lp, int in_tree,
-                        struct scan_check_data *data)
+                        struct ubifs_lp_stats *lst)
 {
        struct ubifs_scan_leb *sleb;
        struct ubifs_scan_node *snod;
-       struct ubifs_lp_stats *lst = &data->lst;
        int cat, lnum = lp->lnum, is_idx = 0, used = 0, free, dirty, ret;
        void *buf = NULL;
 
@@ -1044,7 +1033,7 @@ static int scan_check_cb(struct ubifs_info *c,
                if (cat != (lp->flags & LPROPS_CAT_MASK)) {
                        ubifs_err("bad LEB category %d expected %d",
                                  (lp->flags & LPROPS_CAT_MASK), cat);
-                       goto out;
+                       return -EINVAL;
                }
        }
 
@@ -1078,7 +1067,7 @@ static int scan_check_cb(struct ubifs_info *c,
                        }
                        if (!found) {
                                ubifs_err("bad LPT list (category %d)", cat);
-                               goto out;
+                               return -EINVAL;
                        }
                }
        }
@@ -1090,45 +1079,40 @@ static int scan_check_cb(struct ubifs_info *c,
                if ((lp->hpos != -1 && heap->arr[lp->hpos]->lnum != lnum) ||
                    lp != heap->arr[lp->hpos]) {
                        ubifs_err("bad LPT heap (category %d)", cat);
-                       goto out;
+                       return -EINVAL;
                }
        }
 
        buf = __vmalloc(c->leb_size, GFP_NOFS, PAGE_KERNEL);
-       if (!buf) {
-               ubifs_err("cannot allocate memory to scan LEB %d", lnum);
-               goto out;
+       if (!buf)
+               return -ENOMEM;
+
+       /*
+        * After an unclean unmount, empty and freeable LEBs
+        * may contain garbage - do not scan them.
+        */
+       if (lp->free == c->leb_size) {
+               lst->empty_lebs += 1;
+               lst->total_free += c->leb_size;
+               lst->total_dark += ubifs_calc_dark(c, c->leb_size);
+               return LPT_SCAN_CONTINUE;
+       }
+       if (lp->free + lp->dirty == c->leb_size &&
+           !(lp->flags & LPROPS_INDEX)) {
+               lst->total_free  += lp->free;
+               lst->total_dirty += lp->dirty;
+               lst->total_dark  +=  ubifs_calc_dark(c, c->leb_size);
+               return LPT_SCAN_CONTINUE;
        }
 
        sleb = ubifs_scan(c, lnum, 0, buf, 0);
        if (IS_ERR(sleb)) {
-               /*
-                * After an unclean unmount, empty and freeable LEBs
-                * may contain garbage.
-                */
-               if (lp->free == c->leb_size) {
-                       ubifs_err("scan errors were in empty LEB "
-                                 "- continuing checking");
-                       lst->empty_lebs += 1;
-                       lst->total_free += c->leb_size;
-                       lst->total_dark += ubifs_calc_dark(c, c->leb_size);
-                       ret = LPT_SCAN_CONTINUE;
-                       goto exit;
-               }
-
-               if (lp->free + lp->dirty == c->leb_size &&
-                   !(lp->flags & LPROPS_INDEX)) {
-                       ubifs_err("scan errors were in freeable LEB "
-                                 "- continuing checking");
-                       lst->total_free  += lp->free;
-                       lst->total_dirty += lp->dirty;
-                       lst->total_dark  +=  ubifs_calc_dark(c, c->leb_size);
-                       ret = LPT_SCAN_CONTINUE;
-                       goto exit;
+               ret = PTR_ERR(sleb);
+               if (ret == -EUCLEAN) {
+                       dbg_dump_lprops(c);
+                       dbg_dump_budg(c, &c->bi);
                }
-               data->err = PTR_ERR(sleb);
-               ret = LPT_SCAN_STOP;
-               goto exit;
+               goto out;
        }
 
        is_idx = -1;
@@ -1246,10 +1230,8 @@ static int scan_check_cb(struct ubifs_info *c,
        }
 
        ubifs_scan_destroy(sleb);
-       ret = LPT_SCAN_CONTINUE;
-exit:
        vfree(buf);
-       return ret;
+       return LPT_SCAN_CONTINUE;
 
 out_print:
        ubifs_err("bad accounting of LEB %d: free %d, dirty %d flags %#x, "
@@ -1258,10 +1240,10 @@ out_print:
        dbg_dump_leb(c, lnum);
 out_destroy:
        ubifs_scan_destroy(sleb);
+       ret = -EINVAL;
 out:
        vfree(buf);
-       data->err = -EINVAL;
-       return LPT_SCAN_STOP;
+       return ret;
 }
 
 /**
@@ -1278,10 +1260,9 @@ out:
 int dbg_check_lprops(struct ubifs_info *c)
 {
        int i, err;
-       struct scan_check_data data;
-       struct ubifs_lp_stats *lst = &data.lst;
+       struct ubifs_lp_stats lst;
 
-       if (!(ubifs_chk_flags & UBIFS_CHK_LPROPS))
+       if (!dbg_is_chk_lprops(c))
                return 0;
 
        /*
@@ -1294,29 +1275,23 @@ int dbg_check_lprops(struct ubifs_info *c)
                        return err;
        }
 
-       memset(lst, 0, sizeof(struct ubifs_lp_stats));
-
-       data.err = 0;
+       memset(&lst, 0, sizeof(struct ubifs_lp_stats));
        err = ubifs_lpt_scan_nolock(c, c->main_first, c->leb_cnt - 1,
                                    (ubifs_lpt_scan_callback)scan_check_cb,
-                                   &data);
+                                   &lst);
        if (err && err != -ENOSPC)
                goto out;
-       if (data.err) {
-               err = data.err;
-               goto out;
-       }
 
-       if (lst->empty_lebs != c->lst.empty_lebs ||
-           lst->idx_lebs != c->lst.idx_lebs ||
-           lst->total_free != c->lst.total_free ||
-           lst->total_dirty != c->lst.total_dirty ||
-           lst->total_used != c->lst.total_used) {
+       if (lst.empty_lebs != c->lst.empty_lebs ||
+           lst.idx_lebs != c->lst.idx_lebs ||
+           lst.total_free != c->lst.total_free ||
+           lst.total_dirty != c->lst.total_dirty ||
+           lst.total_used != c->lst.total_used) {
                ubifs_err("bad overall accounting");
                ubifs_err("calculated: empty_lebs %d, idx_lebs %d, "
                          "total_free %lld, total_dirty %lld, total_used %lld",
-                         lst->empty_lebs, lst->idx_lebs, lst->total_free,
-                         lst->total_dirty, lst->total_used);
+                         lst.empty_lebs, lst.idx_lebs, lst.total_free,
+                         lst.total_dirty, lst.total_used);
                ubifs_err("read from lprops: empty_lebs %d, idx_lebs %d, "
                          "total_free %lld, total_dirty %lld, total_used %lld",
                          c->lst.empty_lebs, c->lst.idx_lebs, c->lst.total_free,
@@ -1325,11 +1300,11 @@ int dbg_check_lprops(struct ubifs_info *c)
                goto out;
        }
 
-       if (lst->total_dead != c->lst.total_dead ||
-           lst->total_dark != c->lst.total_dark) {
+       if (lst.total_dead != c->lst.total_dead ||
+           lst.total_dark != c->lst.total_dark) {
                ubifs_err("bad dead/dark space accounting");
                ubifs_err("calculated: total_dead %lld, total_dark %lld",
-                         lst->total_dead, lst->total_dark);
+                         lst.total_dead, lst.total_dark);
                ubifs_err("read from lprops: total_dead %lld, total_dark %lld",
                          c->lst.total_dead, c->lst.total_dark);
                err = -EINVAL;