Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', 'x86/core...

[pandora-kernel.git] / arch / x86 / kernel / entry_64.S

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 80d5663..8410e26 100644 (file)
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -349,8 +349,7 @@ ENTRY(system_call_after_swapgs)
        movq  %rcx,RIP-ARGOFFSET(%rsp)
        CFI_REL_OFFSET rip,RIP-ARGOFFSET
        GET_THREAD_INFO(%rcx)
-       testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
-               TI_flags(%rcx)
+       testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx)
        jnz tracesys
        cmpq $__NR_syscall_max,%rax
        ja badsys
@@ -430,7 +429,12 @@ tracesys:
        FIXUP_TOP_OF_STACK %rdi
        movq %rsp,%rdi
        call syscall_trace_enter
-       LOAD_ARGS ARGOFFSET  /* reload args from stack in case ptrace changed it */
+       /*
+        * Reload arg registers from stack in case ptrace changed them.
+        * We don't reload %rax because syscall_trace_enter() returned
+        * the value it wants us to use in the table lookup.
+        */
+       LOAD_ARGS ARGOFFSET, 1
        RESTORE_REST
        cmpq $__NR_syscall_max,%rax
        ja   int_ret_from_sys_call      /* RAX(%rsp) set to -ENOSYS above */
@@ -483,7 +487,7 @@ int_very_careful:
        ENABLE_INTERRUPTS(CLBR_NONE)
        SAVE_REST
        /* Check for syscall exit trace */      
-       testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP),%edx
+       testl $_TIF_WORK_SYSCALL_EXIT,%edx
        jz int_signal
        pushq %rdi
        CFI_ADJUST_CFA_OFFSET 8
@@ -491,7 +495,7 @@ int_very_careful:
        call syscall_trace_leave
        popq %rdi
        CFI_ADJUST_CFA_OFFSET -8
-       andl $~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP),%edi
+       andl $~(_TIF_WORK_SYSCALL_EXIT|_TIF_SYSCALL_EMU),%edi
        jmp int_restore_rest
        
 int_signal: