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Add vmem memory accounting

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git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@99 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
This commit is contained in:
behlendo
2008-05-07 18:54:32 +00:00
parent 404992e31a
commit 13cdca65ec
2 changed files with 103 additions and 33 deletions
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modules/spl/spl-kmem.c
+34 -7
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@@ -21,6 +21,10 @@ spinlock_t kmem_lock;
struct hlist_head kmem_table[KMEM_TABLE_SIZE];
struct list_head kmem_list;
spinlock_t vmem_lock;
struct hlist_head vmem_table[VMEM_TABLE_SIZE];
struct list_head vmem_list;
EXPORT_SYMBOL(kmem_alloc_used);
EXPORT_SYMBOL(kmem_alloc_max);
EXPORT_SYMBOL(vmem_alloc_used);
@@ -31,6 +35,10 @@ EXPORT_SYMBOL(kmem_lock);
EXPORT_SYMBOL(kmem_table);
EXPORT_SYMBOL(kmem_list);
EXPORT_SYMBOL(vmem_lock);
EXPORT_SYMBOL(vmem_table);
EXPORT_SYMBOL(vmem_list);
int kmem_set_warning(int flag) { return (kmem_warning_flag = !!flag); }
#else
int kmem_set_warning(int flag) { return 0; }
@@ -381,6 +389,12 @@ kmem_init(void)
for (i = 0; i < KMEM_TABLE_SIZE; i++)
INIT_HLIST_HEAD(&kmem_table[i]);
spin_lock_init(&vmem_lock);
INIT_LIST_HEAD(&vmem_list);
for (i = 0; i < VMEM_TABLE_SIZE; i++)
INIT_HLIST_HEAD(&vmem_table[i]);
}
#endif
RETURN(0);
@@ -437,30 +451,43 @@ kmem_fini(void)
kmem_debug_t *kd;
char str[17];
if (atomic64_read(&kmem_alloc_used) != 0)
CWARN("kmem leaked %ld/%ld bytes\n",
atomic_read(&kmem_alloc_used), kmem_alloc_max);
/* Display all unreclaimed memory addresses, including the
* allocation size and the first few bytes of what's located
* at that address to aid in debugging. Performance is not
* a serious concern here since it is module unload time. */
if (atomic64_read(&kmem_alloc_used) != 0)
CWARN("kmem leaked %ld/%ld bytes\n",
atomic_read(&kmem_alloc_used), kmem_alloc_max);
spin_lock_irqsave(&kmem_lock, flags);
if (!list_empty(&kmem_list))
CDEBUG(D_WARNING, "%-16s %-5s %-16s %s:%s\n",
"address", "size", "data", "func", "line");
list_for_each_entry(kd, &kmem_list, kd_list) {
list_for_each_entry(kd, &kmem_list, kd_list)
CDEBUG(D_WARNING, "%p %-5d %-16s %s:%d\n",
kd->kd_addr, kd->kd_size,
kd->kd_addr, kd->kd_size,
sprintf_addr(kd, str, 17, 8),
kd->kd_func, kd->kd_line);
}
spin_unlock_irqrestore(&kmem_lock, flags);
if (atomic64_read(&vmem_alloc_used) != 0)
CWARN("vmem leaked %ld/%ld bytes\n",
atomic_read(&vmem_alloc_used), vmem_alloc_max);
spin_lock_irqsave(&vmem_lock, flags);
if (!list_empty(&vmem_list))
CDEBUG(D_WARNING, "%-16s %-5s %-16s %s:%s\n",
"address", "size", "data", "func", "line");
list_for_each_entry(kd, &vmem_list, kd_list)
CDEBUG(D_WARNING, "%p %-5d %-16s %s:%d\n",
kd->kd_addr, kd->kd_size,
sprintf_addr(kd, str, 17, 8),
kd->kd_func, kd->kd_line);
spin_unlock_irqrestore(&vmem_lock, flags);
}
#endif
EXIT;