diff options
author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 10:16:49 -0400 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 10:16:43 -0400 |
commit | b6ef5bb3d93efb95ba855a628740375c2280a59e (patch) | |
tree | fc26947a0111c7e71085a81e26f12c815f3f4c09 /arch/s390/include/asm/thread_info.h | |
parent | ccf45cafb0805978e6f13a672caca0e536e87cad (diff) |
[S390] add TIF_SYSCALL thread flag
Add an explicit TIF_SYSCALL bit that indicates if a task is inside
a system call. The svc_code in the pt_regs structure is now only
valid if TIF_SYSCALL is set. With this definition TIF_RESTART_SVC
can be replaced with TIF_SYSCALL. Overall do_signal is a bit more
readable and it saves a few lines of code.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/thread_info.h')
-rw-r--r-- | arch/s390/include/asm/thread_info.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 0c4788eb5a6..a23183423b1 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h | |||
@@ -85,10 +85,10 @@ static inline struct thread_info *current_thread_info(void) | |||
85 | /* | 85 | /* |
86 | * thread information flags bit numbers | 86 | * thread information flags bit numbers |
87 | */ | 87 | */ |
88 | #define TIF_SYSCALL 0 /* inside a system call */ | ||
88 | #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ | 89 | #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ |
89 | #define TIF_SIGPENDING 2 /* signal pending */ | 90 | #define TIF_SIGPENDING 2 /* signal pending */ |
90 | #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ | 91 | #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ |
91 | #define TIF_RESTART_SVC 4 /* restart svc with new svc number */ | ||
92 | #define TIF_PER_TRAP 6 /* deliver sigtrap on return to user */ | 92 | #define TIF_PER_TRAP 6 /* deliver sigtrap on return to user */ |
93 | #define TIF_MCCK_PENDING 7 /* machine check handling is pending */ | 93 | #define TIF_MCCK_PENDING 7 /* machine check handling is pending */ |
94 | #define TIF_SYSCALL_TRACE 8 /* syscall trace active */ | 94 | #define TIF_SYSCALL_TRACE 8 /* syscall trace active */ |
@@ -104,11 +104,11 @@ static inline struct thread_info *current_thread_info(void) | |||
104 | #define TIF_SINGLE_STEP 20 /* This task is single stepped */ | 104 | #define TIF_SINGLE_STEP 20 /* This task is single stepped */ |
105 | #define TIF_FREEZE 21 /* thread is freezing for suspend */ | 105 | #define TIF_FREEZE 21 /* thread is freezing for suspend */ |
106 | 106 | ||
107 | #define _TIF_SYSCALL (1<<TIF_SYSCALL) | ||
107 | #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) | 108 | #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) |
108 | #define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) | 109 | #define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) |
109 | #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) | 110 | #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) |
110 | #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) | 111 | #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) |
111 | #define _TIF_RESTART_SVC (1<<TIF_RESTART_SVC) | ||
112 | #define _TIF_PER_TRAP (1<<TIF_PER_TRAP) | 112 | #define _TIF_PER_TRAP (1<<TIF_PER_TRAP) |
113 | #define _TIF_MCCK_PENDING (1<<TIF_MCCK_PENDING) | 113 | #define _TIF_MCCK_PENDING (1<<TIF_MCCK_PENDING) |
114 | #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) | 114 | #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) |