1 files changed, 48 insertions, 4 deletions

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 0d9613c3f5e5..79f057c0619a 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -93,7 +93,8 @@
  */
 #define LOG_WALK_PIN_ONLY 0
 #define LOG_WALK_REPLAY_INODES 1
-#define LOG_WALK_REPLAY_ALL 2
+#define LOG_WALK_REPLAY_DIR_INDEX 2
+#define LOG_WALK_REPLAY_ALL 3
 
 static int btrfs_log_inode(struct btrfs_trans_handle *trans,
                              struct btrfs_root *root, struct inode *inode,
@@ -393,6 +394,7 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
                 if (inode_item) {
                         struct btrfs_inode_item *item;
                         u64 nbytes;
+                        u32 mode;
 
                         item = btrfs_item_ptr(path->nodes[0], path->slots[0],
                                               struct btrfs_inode_item);
@@ -400,9 +402,19 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
                         item = btrfs_item_ptr(eb, slot,
                                               struct btrfs_inode_item);
                         btrfs_set_inode_nbytes(eb, item, nbytes);
+
+                        /*
+                         * If this is a directory we need to reset the i_size to
+                         * 0 so that we can set it up properly when replaying
+                         * the rest of the items in this log.
+                         */
+                        mode = btrfs_inode_mode(eb, item);
+                        if (S_ISDIR(mode))
+                                btrfs_set_inode_size(eb, item, 0);
                 }
         } else if (inode_item) {
                 struct btrfs_inode_item *item;
+                u32 mode;
 
                 /*
                  * New inode, set nbytes to 0 so that the nbytes comes out
@@ -410,6 +422,15 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans,
                  */
                 item = btrfs_item_ptr(eb, slot, struct btrfs_inode_item);
                 btrfs_set_inode_nbytes(eb, item, 0);
+
+                /*
+                 * If this is a directory we need to reset the i_size to 0 so
+                 * that we can set it up properly when replaying the rest of
+                 * the items in this log.
+                 */
+                mode = btrfs_inode_mode(eb, item);
+                if (S_ISDIR(mode))
+                        btrfs_set_inode_size(eb, item, 0);
         }
 insert:
         btrfs_release_path(path);
@@ -1496,6 +1517,7 @@ static noinline int insert_one_name(struct btrfs_trans_handle *trans,
                 iput(inode);
                 return -EIO;
         }
+
         ret = btrfs_add_link(trans, dir, inode, name, name_len, 1, index);
 
         /* FIXME, put inode into FIXUP list */
@@ -1534,6 +1556,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
         u8 log_type;
         int exists;
         int ret = 0;
+        bool update_size = (key->type == BTRFS_DIR_INDEX_KEY);
 
         dir = read_one_inode(root, key->objectid);
         if (!dir)
@@ -1604,6 +1627,10 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
                 goto insert;
 out:
         btrfs_release_path(path);
+        if (!ret && update_size) {
+                btrfs_i_size_write(dir, dir->i_size + name_len * 2);
+                ret = btrfs_update_inode(trans, root, dir);
+        }
         kfree(name);
         iput(dir);
         return ret;
@@ -1614,6 +1641,7 @@ insert:
                               name, name_len, log_type, &log_key);
         if (ret && ret != -ENOENT)
                 goto out;
+        update_size = false;
         ret = 0;
         goto out;
 }
@@ -2027,6 +2055,15 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
                         if (ret)
                                 break;
                 }
+
+                if (key.type == BTRFS_DIR_INDEX_KEY &&
+                    wc->stage == LOG_WALK_REPLAY_DIR_INDEX) {
+                        ret = replay_one_dir_item(wc->trans, root, path,
+                                                  eb, i, &key);
+                        if (ret)
+                                break;
+                }
+
                 if (wc->stage < LOG_WALK_REPLAY_ALL)
                         continue;
 
@@ -2048,8 +2085,7 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
                                                 eb, i, &key);
                         if (ret)
                                 break;
-                } else if (key.type == BTRFS_DIR_ITEM_KEY ||
-                           key.type == BTRFS_DIR_INDEX_KEY) {
+                } else if (key.type == BTRFS_DIR_ITEM_KEY) {
                         ret = replay_one_dir_item(wc->trans, root, path,
                                                   eb, i, &key);
                         if (ret)
@@ -3805,6 +3841,7 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
         int ret = 0;
         struct btrfs_root *root;
         struct dentry *old_parent = NULL;
+        struct inode *orig_inode = inode;
 
         /*
          * for regular files, if its inode is already on disk, we don't
@@ -3824,7 +3861,14 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
         }
 
         while (1) {
-                BTRFS_I(inode)->logged_trans = trans->transid;
+                /*
+                 * If we are logging a directory then we start with our inode,
+                 * not our parents inode, so we need to skipp setting the
+                 * logged_trans so that further down in the log code we don't
+                 * think this inode has already been logged.
+                 */
+                if (inode != orig_inode)
+                        BTRFS_I(inode)->logged_trans = trans->transid;
                 smp_mb();
 
                 if (BTRFS_I(inode)->last_unlink_trans > last_committed) {