microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

Blackfin: use raw_smp_processor_id() in exception code 

When preempt debugging is enabled, smp_processor_id() may utilize the
"current" structure.  This may not be safe to access under all exceptions
due to it being in dynamically allocated memory.  So in exception code,
make sure we use raw_smp_processor_id() instead to get at the real value
directly.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Yi Li 2009-08-20 04:17:47 +00:00 коммит произвёл Mike Frysinger
Родитель 00dd66d012
Коммит b6dbde27dd
3 изменённых файлов: 8 добавлений и 8 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

2
arch/blackfin/kernel/cplb-mpu/cplbmgr.c
Просмотреть файл

@ -280,7 +280,7 @@ static noinline int dcplb_protection_fault(unsigned int cpu)
int cplb_hdr(int seqstat, struct pt_regs *regs)
{
int cause = seqstat & 0x3f;
unsigned int cpu = smp_processor_id();
unsigned int cpu = raw_smp_processor_id();
switch (cause) {
case 0x23:
return dcplb_protection_fault(cpu);

2
arch/blackfin/kernel/cplb-nompu/cplbmgr.c
Просмотреть файл

@ -202,7 +202,7 @@ MGR_ATTR static int dcplb_miss(int cpu)
MGR_ATTR int cplb_hdr(int seqstat, struct pt_regs *regs)
{
int cause = seqstat & 0x3f;
unsigned int cpu = smp_processor_id();
unsigned int cpu = raw_smp_processor_id();
switch (cause) {
case VEC_CPLB_I_M:
return icplb_miss(cpu);

12
arch/blackfin/kernel/traps.c
Просмотреть файл

@ -227,7 +227,7 @@ asmlinkage void double_fault_c(struct pt_regs *fp)
printk(KERN_EMERG "Double Fault\n");
#ifdef CONFIG_DEBUG_DOUBLEFAULT_PRINT
if (((long)fp->seqstat & SEQSTAT_EXCAUSE) == VEC_UNCOV) {
unsigned int cpu = smp_processor_id();
unsigned int cpu = raw_smp_processor_id();
char buf[150];
decode_address(buf, cpu_pda[cpu].retx_doublefault);
printk(KERN_EMERG "While handling exception (EXCAUSE = 0x%x) at %s:\n",
@ -263,7 +263,7 @@ asmlinkage notrace void trap_c(struct pt_regs *fp)
int j;
#endif
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
unsigned int cpu = smp_processor_id();
unsigned int cpu = raw_smp_processor_id();
#endif
const char *strerror = NULL;
int sig = 0;
@ -1098,7 +1098,7 @@ void show_regs(struct pt_regs *fp)
struct irqaction *action;
unsigned int i;
unsigned long flags = 0;
unsigned int cpu = smp_processor_id();
unsigned int cpu = raw_smp_processor_id();
unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic();
verbose_printk(KERN_NOTICE "\n");
@ -1126,13 +1126,13 @@ void show_regs(struct pt_regs *fp)
verbose_printk(KERN_NOTICE "\nSEQUENCER STATUS:\t\t%s\n", print_tainted());
verbose_printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx IMASK: %04lx SYSCFG: %04lx\n",
(long)fp->seqstat, fp->ipend, cpu_pda[smp_processor_id()].ex_imask, fp->syscfg);
(long)fp->seqstat, fp->ipend, cpu_pda[raw_smp_processor_id()].ex_imask, fp->syscfg);
if (fp->ipend & EVT_IRPTEN)
verbose_printk(KERN_NOTICE " Global Interrupts Disabled (IPEND[4])\n");
if (!(cpu_pda[smp_processor_id()].ex_imask & (EVT_IVG13 | EVT_IVG12 | EVT_IVG11 |
if (!(cpu_pda[raw_smp_processor_id()].ex_imask & (EVT_IVG13 | EVT_IVG12 | EVT_IVG11 |
EVT_IVG10 | EVT_IVG9 | EVT_IVG8 | EVT_IVG7 | EVT_IVTMR)))
verbose_printk(KERN_NOTICE " Peripheral interrupts masked off\n");
if (!(cpu_pda[smp_processor_id()].ex_imask & (EVT_IVG15 | EVT_IVG14)))
if (!(cpu_pda[raw_smp_processor_id()].ex_imask & (EVT_IVG15 | EVT_IVG14)))
verbose_printk(KERN_NOTICE " Kernel interrupts masked off\n");
if ((fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR) {
verbose_printk(KERN_NOTICE " HWERRCAUSE: 0x%lx\n",