static void mtdoops_console_sync(void)
{
struct mtdoops_context *cxt = &oops_cxt;
struct mtd_info *mtd = cxt->mtd;
unsigned long flags;
if (!cxt->ready || !mtd || cxt->writecount == 0)
return;
spin_lock_irqsave(&cxt->writecount_lock, flags);
if (!cxt->ready) {
spin_unlock_irqrestore(&cxt->writecount_lock, flags);
return;
}
cxt->ready = 0;
spin_unlock_irqrestore(&cxt->writecount_lock, flags);
if (mtd->panic_write && in_interrupt())
mtdoops_write(cxt, 1);
else
schedule_work(&cxt->work_write);
}
static void mtdoops_do_dump(struct kmsg_dumper *dumper,
enum kmsg_dump_reason reason, const char *s1, unsigned long l1,
const char *s2, unsigned long l2)
{
struct mtdoops_context *cxt = container_of(dumper,
struct mtdoops_context, dump);
unsigned long s1_start, s2_start;
unsigned long l1_cpy, l2_cpy;
char *dst;
/* Only dump oopses if dump_oops is set */
if (reason == KMSG_DUMP_OOPS && !dump_oops)
return;
dst = cxt->oops_buf + MTDOOPS_HEADER_SIZE; /* Skip the header */
l2_cpy = min(l2, record_size - MTDOOPS_HEADER_SIZE);
l1_cpy = min(l1, record_size - MTDOOPS_HEADER_SIZE - l2_cpy);
s2_start = l2 - l2_cpy;
s1_start = l1 - l1_cpy;
memcpy(dst, s1 + s1_start, l1_cpy);
memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy);
/* Panics must be written immediately */
if (reason != KMSG_DUMP_OOPS) {
if (!cxt->mtd->panic_write)
printk(KERN_ERR "mtdoops: Cannot write from panic without panic_write\n");
else
mtdoops_write(cxt, 1);
return;
}
/* For other cases, schedule work to write it "nicely" */
schedule_work(&cxt->work_write);
}
