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authorRoland McGrath <roland@redhat.com>2008-04-30 17:40:14 -0400
committerTony Luck <tony.luck@intel.com>2008-05-01 17:29:44 -0400
commit848376c774a941c29e4fa083d96d84a5f2190857 (patch)
tree190ded9079f7de75018e9d89049e65b62c239151 /include/asm-ia64/thread_info.h
parentc0cd661b1b0ad83dac54420169ec9ca14df409e9 (diff)
[IA64] TS_RESTORE_SIGMASK
Replace TIF_RESTORE_SIGMASK with TS_RESTORE_SIGMASK and define our own set_restore_sigmask() function. This saves the costly SMP-safe set_bit operation, which we do not need for the sigmask flag since TIF_SIGPENDING always has to be set too. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/thread_info.h')
-rw-r--r--include/asm-ia64/thread_info.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h
index f30e05583869..2422ac61658a 100644
--- a/include/asm-ia64/thread_info.h
+++ b/include/asm-ia64/thread_info.h
@@ -108,13 +108,11 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
108#define TIF_DB_DISABLED 19 /* debug trap disabled for fsyscall */ 108#define TIF_DB_DISABLED 19 /* debug trap disabled for fsyscall */
109#define TIF_FREEZE 20 /* is freezing for suspend */ 109#define TIF_FREEZE 20 /* is freezing for suspend */
110#define TIF_RESTORE_RSE 21 /* user RBS is newer than kernel RBS */ 110#define TIF_RESTORE_RSE 21 /* user RBS is newer than kernel RBS */
111#define TIF_RESTORE_SIGMASK 22 /* restore signal mask in do_signal() */
112 111
113#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) 112#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
114#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) 113#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
115#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) 114#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
116#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP) 115#define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP)
117#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
118#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) 116#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
119#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) 117#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
120#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) 118#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
@@ -131,7 +129,18 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
131#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT)) 129#define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))
132 130
133#define TS_POLLING 1 /* true if in idle loop and not sleeping */ 131#define TS_POLLING 1 /* true if in idle loop and not sleeping */
132#define TS_RESTORE_SIGMASK 2 /* restore signal mask in do_signal() */
134 133
135#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING) 134#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
136 135
136#ifndef __ASSEMBLY__
137#define HAVE_SET_RESTORE_SIGMASK 1
138static inline void set_restore_sigmask(void)
139{
140 struct thread_info *ti = current_thread_info();
141 ti->status |= TS_RESTORE_SIGMASK;
142 set_bit(TIF_SIGPENDING, &ti->flags);
143}
144#endif /* !__ASSEMBLY__ */
145
137#endif /* _ASM_IA64_THREAD_INFO_H */ 146#endif /* _ASM_IA64_THREAD_INFO_H */