1 files changed, 56 insertions, 6 deletions

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index a18b2a895771..9d02cdcdbb07 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -875,7 +875,7 @@ static int truncate_dnode(struct dnode_of_data *dn)
 
 	/* get direct node */
 	page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid);
-	if (IS_ERR(page) && PTR_ERR(page) == -ENOENT)
+	if (PTR_ERR(page) == -ENOENT)
 		return 1;
 	else if (IS_ERR(page))
 		return PTR_ERR(page);
@@ -1524,7 +1524,8 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
 		goto redirty_out;
 
-	if (wbc->sync_mode == WB_SYNC_NONE &&
+	if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
+			wbc->sync_mode == WB_SYNC_NONE &&
 			IS_DNODE(page) && is_cold_node(page))
 		goto redirty_out;
 
@@ -1762,6 +1763,47 @@ out:
 	return ret ? -EIO: 0;
 }
 
+static int f2fs_match_ino(struct inode *inode, unsigned long ino, void *data)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	bool clean;
+
+	if (inode->i_ino != ino)
+		return 0;
+
+	if (!is_inode_flag_set(inode, FI_DIRTY_INODE))
+		return 0;
+
+	spin_lock(&sbi->inode_lock[DIRTY_META]);
+	clean = list_empty(&F2FS_I(inode)->gdirty_list);
+	spin_unlock(&sbi->inode_lock[DIRTY_META]);
+
+	if (clean)
+		return 0;
+
+	inode = igrab(inode);
+	if (!inode)
+		return 0;
+	return 1;
+}
+
+static bool flush_dirty_inode(struct page *page)
+{
+	struct f2fs_sb_info *sbi = F2FS_P_SB(page);
+	struct inode *inode;
+	nid_t ino = ino_of_node(page);
+
+	inode = find_inode_nowait(sbi->sb, ino, f2fs_match_ino, NULL);
+	if (!inode)
+		return false;
+
+	f2fs_update_inode(inode, page);
+	unlock_page(page);
+
+	iput(inode);
+	return true;
+}
+
 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
 				struct writeback_control *wbc,
 				bool do_balance, enum iostat_type io_type)
@@ -1785,6 +1827,7 @@ next_step:
 		for (i = 0; i < nr_pages; i++) {
 			struct page *page = pvec.pages[i];
 			bool submitted = false;
+			bool may_dirty = true;
 
 			/* give a priority to WB_SYNC threads */
 			if (atomic_read(&sbi->wb_sync_req[NODE]) &&
@@ -1832,6 +1875,13 @@ continue_unlock:
 				goto lock_node;
 			}
 
+			/* flush dirty inode */
+			if (IS_INODE(page) && may_dirty) {
+				may_dirty = false;
+				if (flush_dirty_inode(page))
+					goto lock_node;
+			}
+
 			f2fs_wait_on_page_writeback(page, NODE, true, true);
 
 			if (!clear_page_dirty_for_io(page))
@@ -1860,7 +1910,8 @@ continue_unlock:
 	}
 
 	if (step < 2) {
-		if (wbc->sync_mode == WB_SYNC_NONE && step == 1)
+		if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) &&
+				wbc->sync_mode == WB_SYNC_NONE && step == 1)
 			goto out;
 		step++;
 		goto next_step;
@@ -2298,7 +2349,6 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 
 			if (ret) {
 				up_read(&nm_i->nat_tree_lock);
-				f2fs_bug_on(sbi, !mount);
 				f2fs_err(sbi, "NAT is corrupt, run fsck to fix it");
 				return ret;
 			}
@@ -2348,7 +2398,7 @@ bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid)
 	struct free_nid *i = NULL;
 retry:
 	if (time_to_inject(sbi, FAULT_ALLOC_NID)) {
-		f2fs_show_injection_info(FAULT_ALLOC_NID);
+		f2fs_show_injection_info(sbi, FAULT_ALLOC_NID);
 		return false;
 	}
 
@@ -2964,7 +3014,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
 
 	/* not used nids: 0, node, meta, (and root counted as valid node) */
 	nm_i->available_nids = nm_i->max_nid - sbi->total_valid_node_count -
-				sbi->nquota_files - F2FS_RESERVED_NODE_NUM;
+						F2FS_RESERVED_NODE_NUM;
 	nm_i->nid_cnt[FREE_NID] = 0;
 	nm_i->nid_cnt[PREALLOC_NID] = 0;
 	nm_i->nat_cnt = 0;