UBIFS: improve budgeting dump

Dump available space calculated by budgeting subsystem.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 367d97520d95..6ecb01a99d14 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -597,7 +597,9 @@ void dbg_dump_budg(struct ubifs_info *c)
         struct rb_node *rb;
         struct ubifs_bud *bud;
         struct ubifs_gced_idx_leb *idx_gc;
+        long long available, outstanding, free;
 
+        ubifs_assert(spin_is_locked(&c->space_lock));
         spin_lock(&dbg_lock);
         printk(KERN_DEBUG "(pid %d) Budgeting info: budg_data_growth %lld, "
                "budg_dd_growth %lld, budg_idx_growth %lld\n", current->pid,
@@ -630,6 +632,17 @@ void dbg_dump_budg(struct ubifs_info *c)
                 printk(KERN_DEBUG "\tGC'ed idx LEB %d unmap %d\n",
                        idx_gc->lnum, idx_gc->unmap);
         printk(KERN_DEBUG "\tcommit state %d\n", c->cmt_state);
+
+        /* Print budgeting predictions */
+        available = ubifs_calc_available(c, c->min_idx_lebs);
+        outstanding = c->budg_data_growth + c->budg_dd_growth;
+        if (available > outstanding)
+                free = ubifs_reported_space(c, available - outstanding);
+        else
+                free = 0;
+        printk(KERN_DEBUG "Budgeting predictions:\n");
+        printk(KERN_DEBUG "\tavailable: %lld, outstanding %lld, free %lld\n",
+               available, outstanding, free);
         spin_unlock(&dbg_lock);
 }