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UBIFS: improve budgeting dump

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Dump available space calculated by budgeting subsystem.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2008-12-12 11:13:17 -05:00
parent 24fa9e9438
commit 21a6025897
3 changed files with 16 additions and 3 deletions
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4
fs/ubifs/budget.c
View file

@ -713,8 +713,8 @@ void ubifs_release_dirty_inode_budget(struct ubifs_info *c,
* (e.g., via the 'statfs()' call) reports that it has N bytes available, they
* are able to write a file of size N. UBIFS attaches node headers to each data
* node and it has to write indexind nodes as well. This introduces additional
* overhead, and UBIFS it has to report sligtly less free space to meet the
* above expectetion.
* overhead, and UBIFS has to report sligtly less free space to meet the above
* expectetions.
*
* This function assumes free space is made up of uncompressed data nodes and
* full index nodes (one per data node, tripled because we always allow enough

13
fs/ubifs/debug.c
View file

@ -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);
}

2
fs/ubifs/ubifs.h
View file

@ -419,7 +419,7 @@ struct ubifs_unclean_leb {
*
* LPROPS_UNCAT: not categorized
* LPROPS_DIRTY: dirty > 0, not index
* LPROPS_DIRTY_IDX: dirty + free > UBIFS_CH_SZ and index
* LPROPS_DIRTY_IDX: dirty + free > @c->min_idx_node_sze and index
* LPROPS_FREE: free > 0, not empty, not index
* LPROPS_HEAP_CNT: number of heaps used for storing categorized LEBs
* LPROPS_EMPTY: LEB is empty, not taken