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x86: add early_ioremap() leak detection 

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2008-01-30 13:33:47 +01:00
parent 793b24a2dd
commit d690b2afd5
1 changed files with 16 additions and 0 deletions
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16
arch/x86/mm/ioremap_32.c
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@ -311,6 +311,22 @@ static inline void __init early_clear_fixmap(enum fixed_addresses idx)
int __initdata early_ioremap_nested;
static int __init check_early_ioremap_leak(void)
{
if (!early_ioremap_nested)
return 0;
printk(KERN_WARNING
"Debug warning: early ioremap leak of %d areas detected.\n",
early_ioremap_nested);
printk(KERN_WARNING
"please boot with early_ioremap_debug and report the dmesg.\n");
WARN_ON(1);
return 1;
}
late_initcall(check_early_ioremap_leak);
void __init *early_ioremap(unsigned long phys_addr, unsigned long size)
{
unsigned long offset, last_addr;