[SPARC]: Add support for *at(), ppoll, and pselect syscalls.

This also includes by necessity _TIF_RESTORE_SIGMASK support,
which actually resulted in a lot of cleanups.

The sparc signal handling code is quite a mess and I should
clean it up some day.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/asm-sparc/thread_info.h b/include/asm-sparc/thread_info.h
index 65f060b040ab..91b9f5888c85 100644
--- a/include/asm-sparc/thread_info.h
+++ b/include/asm-sparc/thread_info.h
@@ -128,9 +128,10 @@ BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *)
  * thread information flag bit numbers
  */
 #define TIF_SYSCALL_TRACE       0       /* syscall trace active */
-#define TIF_NOTIFY_RESUME       1       /* resumption notification requested */
+/* flag bit 1 is available */
 #define TIF_SIGPENDING          2       /* signal pending */
 #define TIF_NEED_RESCHED        3       /* rescheduling necessary */
+#define TIF_RESTORE_SIGMASK     4       /* restore signal mask in do_signal() */
 #define TIF_USEDFPU             8       /* FPU was used by this task
                                          * this quantum (SMP) */
 #define TIF_POLLING_NRFLAG      9       /* true if poll_idle() is polling
@@ -139,9 +140,9 @@ BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *)
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
-#define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
 #define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
+#define _TIF_RESTORE_SIGMASK    (1<<TIF_RESTORE_SIGMASK)
 #define _TIF_USEDFPU            (1<<TIF_USEDFPU)
 #define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)