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authorTakashi Iwai2010-12-13 09:29:52 +0100
committerTakashi Iwai2010-12-13 09:29:52 +0100
commit354d14b3f53cc749c5d26d4ba7280d1e931d6bc4 (patch)
tree59b597e44902d8db8bde7deac1e7e707327c6fe6 /fs/xfs/xfs_dfrag.c
parentALSA: aoa: Remove wrong i2c_set_clientdata in onyx_i2c_remove() (diff)
parentsound: don't use flush_scheduled_work() (diff)
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Merge branch 'topic/workq-update' into topic/misc
Diffstat (limited to 'fs/xfs/xfs_dfrag.c')
-rw-r--r--fs/xfs/xfs_dfrag.c13
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) {