summaryrefslogtreecommitdiff
path: root/include/asm-powerpc/thread_info.h
diff options
context:
space:
mode:
authorRoland McGrath <roland@redhat.com>2008-04-28 17:30:37 +1000
committerPaul Mackerras <paulus@samba.org>2008-05-14 22:31:33 +1000
commit7a10174eeafe737f3ccfcece5bdff749c3b044e0 (patch)
tree96d3139ed19153e3369683d6b71cd74852fd1ef5 /include/asm-powerpc/thread_info.h
parent140b932f8cb6cced10b96860651a198b1b89cbb9 (diff)
[POWERPC] Define and use TLF_RESTORE_SIGMASK
Replace TIF_RESTORE_SIGMASK with TLF_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: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/thread_info.h')
-rw-r--r--include/asm-powerpc/thread_info.h17
1 files changed, 13 insertions, 4 deletions
diff --git a/include/asm-powerpc/thread_info.h b/include/asm-powerpc/thread_info.h
index d030f5ce39ad..e079e81051fd 100644
--- a/include/asm-powerpc/thread_info.h
+++ b/include/asm-powerpc/thread_info.h
@@ -116,7 +116,6 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_SECCOMP 10 /* secure computing */
#define TIF_RESTOREALL 11 /* Restore all regs (implies NOERROR) */
#define TIF_NOERROR 12 /* Force successful syscall return */
-#define TIF_RESTORE_SIGMASK 13 /* Restore signal mask in do_signal */
#define TIF_FREEZE 14 /* Freezing for suspend */
#define TIF_RUNLATCH 15 /* Is the runlatch enabled? */
#define TIF_ABI_PENDING 16 /* 32/64 bit switch needed */
@@ -134,21 +133,31 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_RESTOREALL (1<<TIF_RESTOREALL)
#define _TIF_NOERROR (1<<TIF_NOERROR)
-#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_RUNLATCH (1<<TIF_RUNLATCH)
#define _TIF_ABI_PENDING (1<<TIF_ABI_PENDING)
#define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
-#define _TIF_USER_WORK_MASK ( _TIF_SIGPENDING | \
- _TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
+#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED)
#define _TIF_PERSYSCALL_MASK (_TIF_RESTOREALL|_TIF_NOERROR)
/* Bits in local_flags */
/* Don't move TLF_NAPPING without adjusting the code in entry_32.S */
#define TLF_NAPPING 0 /* idle thread enabled NAP mode */
+#define TLF_RESTORE_SIGMASK 1 /* Restore signal mask in do_signal */
#define _TLF_NAPPING (1 << TLF_NAPPING)
+#define _TLF_RESTORE_SIGMASK (1 << TLF_RESTORE_SIGMASK)
+
+#ifndef __ASSEMBLY__
+#define HAVE_SET_RESTORE_SIGMASK 1
+static inline void set_restore_sigmask(void)
+{
+ struct thread_info *ti = current_thread_info();
+ ti->local_flags |= _TLF_RESTORE_SIGMASK;
+ set_bit(TIF_SIGPENDING, &ti->flags);
+}
+#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */