diff options
Diffstat (limited to 'arch/parisc/kernel/unaligned.c')
| -rw-r--r-- | arch/parisc/kernel/unaligned.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c index aebf3c16887..d7c0acb35ec 100644 --- a/arch/parisc/kernel/unaligned.c +++ b/arch/parisc/kernel/unaligned.c @@ -25,12 +25,14 @@ #include <linux/module.h> #include <linux/sched.h> #include <linux/signal.h> +#include <linux/ratelimit.h> #include <asm/uaccess.h> +#include <asm/hardirq.h> /* #define DEBUG_UNALIGNED 1 */ #ifdef DEBUG_UNALIGNED -#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __FUNCTION__ ); printk(KERN_DEBUG fmt, ##args ); } while (0) +#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __func__ ); printk(KERN_DEBUG fmt, ##args ); } while (0) #else #define DPRINTF(fmt, args...) #endif @@ -446,27 +448,23 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop) void handle_unaligned(struct pt_regs *regs) { - static unsigned long unaligned_count = 0; - static unsigned long last_time = 0; + static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5); unsigned long newbase = R1(regs->iir)?regs->gr[R1(regs->iir)]:0; int modify = 0; int ret = ERR_NOTHANDLED; struct siginfo si; register int flop=0; /* true if this is a flop */ + __inc_irq_stat(irq_unaligned_count); + /* log a message with pacing */ if (user_mode(regs)) { if (current->thread.flags & PARISC_UAC_SIGBUS) { goto force_sigbus; } - if (unaligned_count > 5 && jiffies - last_time > 5*HZ) { - unaligned_count = 0; - last_time = jiffies; - } - - if (!(current->thread.flags & PARISC_UAC_NOPRINT) - && ++unaligned_count < 5) { + if (!(current->thread.flags & PARISC_UAC_NOPRINT) && + __ratelimit(&ratelimit)) { char buf[256]; sprintf(buf, "%s(%d): unaligned access to 0x" RFMT " at ip=0x" RFMT "\n", current->comm, task_pid_nr(current), regs->ior, regs->iaoq[0]); @@ -624,15 +622,12 @@ void handle_unaligned(struct pt_regs *regs) flop=1; ret = emulate_std(regs, R2(regs->iir),1); break; - -#ifdef CONFIG_PA20 case OPCODE_LDD_L: ret = emulate_ldd(regs, R2(regs->iir),0); break; case OPCODE_STD_L: ret = emulate_std(regs, R2(regs->iir),0); break; -#endif } #endif switch (regs->iir & OPCODE3_MASK) |