Lines Matching refs:tail
1369 user_backtrace(struct frame_tail __user *tail, in user_backtrace() argument
1376 if (!access_ok(VERIFY_READ, tail, sizeof(buftail))) in user_backtrace()
1380 err = __copy_from_user_inatomic(&buftail, tail, sizeof(buftail)); in user_backtrace()
1392 if (tail >= buftail.fp) in user_backtrace()
1414 compat_user_backtrace(struct compat_frame_tail __user *tail, in compat_user_backtrace() argument
1421 if (!access_ok(VERIFY_READ, tail, sizeof(buftail))) in compat_user_backtrace()
1425 err = __copy_from_user_inatomic(&buftail, tail, sizeof(buftail)); in compat_user_backtrace()
1437 if (tail + 1 >= (struct compat_frame_tail __user *) in compat_user_backtrace()
1457 struct frame_tail __user *tail; in perf_callchain_user() local
1459 tail = (struct frame_tail __user *)regs->regs[29]; in perf_callchain_user()
1462 tail && !((unsigned long)tail & 0xf)) in perf_callchain_user()
1463 tail = user_backtrace(tail, entry); in perf_callchain_user()
1467 struct compat_frame_tail __user *tail; in perf_callchain_user() local
1469 tail = (struct compat_frame_tail __user *)regs->compat_fp - 1; in perf_callchain_user()
1472 tail && !((unsigned long)tail & 0x3)) in perf_callchain_user()
1473 tail = compat_user_backtrace(tail, entry); in perf_callchain_user()