Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Update documentation to remind users to update mke2fs.conf
  ext4: Fix small file fragmentation
  ext4: Initialize writeback_index to 0 when allocating a new inode
  ext4: make sure ext4_has_free_blocks returns 0 for ENOSPC
  ext4: journal credit fix for the delayed allocation's writepages() function
  ext4: Rework the ext4_da_writepages() function
  ext4: journal credits reservation fixes for DIO, fallocate
  ext4: journal credits reservation fixes for extent file writepage
  ext4: journal credits calulation cleanup and fix for non-extent writepage
  ext4: Fix bug where we return ENOSPC even though we have plenty of inodes
  ext4: don't try to resize if there are no reserved gdt blocks left
  ext4: Use ext4_discard_reservations instead of mballoc-specific call
  ext4: Fix ext4_dx_readdir hash collision handling
  ext4: Fix delalloc release block reservation for truncate
  ext4: Fix potential truncate BUG due to i_prealloc_list being non-empty
  ext4: Handle unwritten extent properly with delayed allocation

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 0a9265164265..b3d35604ea18 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -773,7 +773,8 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
 
         if (reserved_gdb || gdb_off == 0) {
                 if (!EXT4_HAS_COMPAT_FEATURE(sb,
-                                             EXT4_FEATURE_COMPAT_RESIZE_INODE)){
+                                             EXT4_FEATURE_COMPAT_RESIZE_INODE)
+                    || !le16_to_cpu(es->s_reserved_gdt_blocks)) {
                         ext4_warning(sb, __func__,
                                      "No reserved GDT blocks, can't resize");
                         return -EPERM;