diff options
| author |   Andi Kleen <ak@suse.de> | 2005-05-16 21:53:19 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-17 07:59:13 -0700 |
| commit | 10ffdbb8d605be88b148f127ec86452f1364d4f0 (patch) | |
| tree | c8698c29b1fb07d07f03d98c74f653b75eb20d32 /arch | |
| parent | [PATCH] x86_64: Reduce NMI watchdog stack usage (diff) | |
| download | linux-dev-10ffdbb8d605be88b148f127ec86452f1364d4f0.tar.xz linux-dev-10ffdbb8d605be88b148f127ec86452f1364d4f0.zip | |
[PATCH] x86_64: Readd missing tests in entry.S
Cleans up the system exit call slightly and synchronizes with my tree again.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86_64/kernel/entry.S | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index 1086b5fcac21..28817490fdc6 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S @@ -220,13 +220,18 @@ sysret_careful: jmp sysret_check /* Handle a signal */ - /* edx: work flags (arg3) */ sysret_signal: sti + testl $(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SINGLESTEP),%edx + jz 1f + + /* Really a signal */ + /* edx: work flags (arg3) */ leaq do_notify_resume(%rip),%rax leaq -ARGOFFSET(%rsp),%rdi # &pt_regs -> arg1 xorl %esi,%esi # oldset -> arg2 call ptregscall_common +1: movl $_TIF_NEED_RESCHED,%edi jmp sysret_check /* Do syscall tracing */ @@ -484,6 +489,8 @@ retint_careful: jmp retint_check retint_signal: + testl $(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SINGLESTEP),%edx + jz retint_swapgs sti SAVE_REST movq $-1,ORIG_RAX(%rsp) @@ -492,8 +499,8 @@ retint_signal: call do_notify_resume RESTORE_REST cli + movl $_TIF_NEED_RESCHED,%edi GET_THREAD_INFO(%rcx) - movl $_TIF_WORK_MASK,%edi jmp retint_check #ifdef CONFIG_PREEMPT |