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Diffstat (limited to 'arch/x86/kernel/entry_64.S')
-rw-r--r--arch/x86/kernel/entry_64.S24
1 files changed, 9 insertions, 15 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index d59fe323807e..b5c061f8f358 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -536,20 +536,13 @@ sysret_signal:
bt $TIF_SYSCALL_AUDIT,%edx
jc sysret_audit
#endif
- /* edx: work flags (arg3) */
- leaq -ARGOFFSET(%rsp),%rdi # &pt_regs -> arg1
- xorl %esi,%esi # oldset -> arg2
- SAVE_REST
- FIXUP_TOP_OF_STACK %r11
- call do_notify_resume
- RESTORE_TOP_OF_STACK %r11
- RESTORE_REST
- movl $_TIF_WORK_MASK,%edi
- /* Use IRET because user could have changed frame. This
- works because ptregscall_common has called FIXUP_TOP_OF_STACK. */
- DISABLE_INTERRUPTS(CLBR_NONE)
- TRACE_IRQS_OFF
- jmp int_with_check
+ /*
+ * We have a signal, or exit tracing or single-step.
+ * These all wind up with the iret return path anyway,
+ * so just join that path right now.
+ */
+ FIXUP_TOP_OF_STACK %r11, -ARGOFFSET
+ jmp int_check_syscall_exit_work
badsys:
movq $-ENOSYS,RAX-ARGOFFSET(%rsp)
@@ -654,6 +647,7 @@ int_careful:
int_very_careful:
TRACE_IRQS_ON
ENABLE_INTERRUPTS(CLBR_NONE)
+int_check_syscall_exit_work:
SAVE_REST
/* Check for syscall exit trace */
testl $_TIF_WORK_SYSCALL_EXIT,%edx
@@ -1021,7 +1015,7 @@ apicinterrupt ERROR_APIC_VECTOR \
apicinterrupt SPURIOUS_APIC_VECTOR \
spurious_interrupt smp_spurious_interrupt
-#ifdef CONFIG_PERF_COUNTERS
+#ifdef CONFIG_PERF_EVENTS
apicinterrupt LOCAL_PENDING_VECTOR \
perf_pending_interrupt smp_perf_pending_interrupt
#endif