NTFS: Fix ntfs_attr_make_non_resident() to update the vfs inode i_blocks

      which is zero for a resident attribute but should no longer be zero
      once the attribute is non-resident as it then has real clusters
      allocated.

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>

2 files changed, 7 insertions, 1 deletions

diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
index 60ba3c5cb2ea..045beda82942 100644
--- a/fs/ntfs/ChangeLog
+++ b/fs/ntfs/ChangeLog
@@ -43,6 +43,10 @@ ToDo/Notes:
           reason we cannot simply read the size from the vfs inode i_size is
           that this is not necessarily uptodate.  This happens when
           ntfs_attr_make_non_resident() is called in the ->truncate call path.
+        - Fix ntfs_attr_make_non_resident() to update the vfs inode i_blocks
+          which is zero for a resident attribute but should no longer be zero
+          once the attribute is non-resident as it then has real clusters
+          allocated.
 
 2.1.24 - Lots of bug fixes and support more clean journal states.
 
diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
index 380f70a5f2e1..8821e2d088b7 100644
--- a/fs/ntfs/attrib.c
+++ b/fs/ntfs/attrib.c
@@ -1719,7 +1719,9 @@ int ntfs_attr_make_non_resident(ntfs_inode *ni, const u32 data_size)
                                 ffs(ni->itype.compressed.block_size) - 1;
                 ni->itype.compressed.block_clusters = 1U <<
                                 a->data.non_resident.compression_unit;
-        }
+                vi->i_blocks = ni->itype.compressed.size >> 9;
+        } else
+                vi->i_blocks = ni->allocated_size >> 9;
         write_unlock_irqrestore(&ni->size_lock, flags);
         /*
          * This needs to be last since the address space operations ->readpage