When running with soft updates, track the number of blocks and files

that are committed to being freed and reflect these blocks in the
counts returned by statfs (and thus also by the `df' command). This
change allows programs such as those that do news expiration to
know when to stop if they are trying to create a certain percentage
of free space. Note that this change does not solve the much harder
problem of making this to-be-freed space available to applications
that want it (thus on a nearly full filesystem, you may still
encounter out-of-space conditions even though the free space will
show up eventually). Hopefully this harder problem will be the
subject of a future enhancement.

1 files changed, 9 insertions, 0 deletions

diff --git a/sys/ufs/ffs/ffs_softdep_stub.c b/sys/ufs/ffs/ffs_softdep_stub.c
index 95c947555661..3460b7c64967 100644
--- a/sys/ufs/ffs/ffs_softdep_stub.c
+++ b/sys/ufs/ffs/ffs_softdep_stub.c
@@ -270,6 +270,15 @@ int
 softdep_slowdown(vp)
 	struct vnode *vp;
 {
+
 	panic("softdep_slowdown called");
 }
+
+void
+softdep_releasefile(ip)
+	struct inode *ip;	/* inode with the zero effective link count */
+{
+
+	panic("softdep_releasefile called");
+}
 #endif	/* SOFTUPDATES not configured in */