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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-24 21:22:33 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-24 21:22:33 +0100 |
| commit | baea7b946f00a291b166ccae7fcfed6c01530cc6 (patch) | |
| tree | 4aa275fbdbec9c7b9b4629e8bee2bbecd3c6a6af /arch/x86/kernel/entry_64.S | |
| parent | ae19ffbadc1b2100285a5b5b3d0a4e0a11390904 (diff) | |
| parent | 94e0fb086fc5663c38bbc0fe86d698be8314f82f (diff) | |
Merge branch 'origin' into for-linus
Conflicts:
MAINTAINERS
Diffstat (limited to 'arch/x86/kernel/entry_64.S')
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index d59fe323807..b5c061f8f35 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 |