diff options
Diffstat (limited to 'fs/xfs/xfs_dfrag.c')
| -rw-r--r-- | fs/xfs/xfs_dfrag.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c index 3b9582c60a22..e60490bc00a6 100644 --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -377,6 +377,19 @@ xfs_swap_extents( ip->i_d.di_format = tip->i_d.di_format; tip->i_d.di_format = tmp; + /* + * The extents in the source inode could still contain speculative + * preallocation beyond EOF (e.g. the file is open but not modified + * while defrag is in progress). In that case, we need to copy over the + * number of delalloc blocks the data fork in the source inode is + * tracking beyond EOF so that when the fork is truncated away when the + * temporary inode is unlinked we don't underrun the i_delayed_blks + * counter on that inode. + */ + ASSERT(tip->i_delayed_blks == 0); + tip->i_delayed_blks = ip->i_delayed_blks; + ip->i_delayed_blks = 0; + ilf_fields = XFS_ILOG_CORE; switch(ip->i_d.di_format) { |