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authorAndi Kleen <ak@suse.de>2005-05-16 21:53:19 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-17 07:59:13 -0700
commit10ffdbb8d605be88b148f127ec86452f1364d4f0 (patch)
treec8698c29b1fb07d07f03d98c74f653b75eb20d32 /arch/x86_64
parentac6b931c44fd9988eaa821c339d54ba06b212412 (diff)
[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/x86_64')
-rw-r--r--arch/x86_64/kernel/entry.S11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 1086b5fcac2..28817490fdc 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