diff options
Diffstat (limited to 'arch/arm/kernel/traps.c')
| -rw-r--r-- | arch/arm/kernel/traps.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 72c82a4d63ac..afbd2ebe5c39 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -26,6 +26,7 @@ #include <linux/sched/debug.h> #include <linux/sched/task_stack.h> #include <linux/irq.h> +#include <linux/vmalloc.h> #include <linux/atomic.h> #include <asm/cacheflush.h> @@ -257,13 +258,6 @@ void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl) barrier(); } -#ifdef CONFIG_PREEMPT -#define S_PREEMPT " PREEMPT" -#elif defined(CONFIG_PREEMPT_RT) -#define S_PREEMPT " PREEMPT_RT" -#else -#define S_PREEMPT "" -#endif #ifdef CONFIG_SMP #define S_SMP " SMP" #else @@ -281,8 +275,8 @@ static int __die(const char *str, int err, struct pt_regs *regs) static int die_counter; int ret; - pr_emerg("Internal error: %s: %x [#%d]" S_PREEMPT S_SMP S_ISA "\n", - str, err, ++die_counter); + pr_emerg("Internal error: %s: %x [#%d]" S_SMP S_ISA "\n", + str, err, ++die_counter); /* trap and error numbers are mostly meaningless on ARM */ ret = notify_die(DIE_OOPS, str, regs, err, tsk->thread.trap_no, SIGSEGV); @@ -569,6 +563,7 @@ static int bad_syscall(int n, struct pt_regs *regs) static inline int __do_cache_op(unsigned long start, unsigned long end) { + unsigned int ua_flags; int ret; do { @@ -577,7 +572,9 @@ __do_cache_op(unsigned long start, unsigned long end) if (fatal_signal_pending(current)) return 0; + ua_flags = uaccess_save_and_enable(); ret = flush_icache_user_range(start, start + chunk); + uaccess_restore(ua_flags); if (ret) return ret; |