signals: ia64 renumber TIF_RESTORE_SIGMASK

TIF_RESTORE_SIGMASK no longer needs to be in the _TIF_WORK_* masks.
Those low bits are scarce.  Renumber TIF_RESTORE_SIGMASK to free one up.
Signed-off-by: NRoland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/ia64/kernel/process.c

@@ -183,7 +183,7 @@ do_notify_resume_user (sigset_t *unused, struct sigscratch *scr, long in_syscall
 #endif
 
 	/* deal with pending signal delivery */
-	if (test_thread_flag(TIF_SIGPENDING)||test_thread_flag(TIF_RESTORE_SIGMASK))
+	if (test_thread_flag(TIF_SIGPENDING))
 		ia64_do_signal(scr, in_syscall);
 
 	/* copy user rbs to kernel rbs */

include/asm-ia64/thread_info.h

@@ -101,7 +101,6 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
 #define TIF_SYSCALL_TRACE	2	/* syscall trace active */
 #define TIF_SYSCALL_AUDIT	3	/* syscall auditing active */
 #define TIF_SINGLESTEP		4	/* restore singlestep on return to user mode */
-#define TIF_RESTORE_SIGMASK	5	/* restore signal mask in do_signal() */
 #define TIF_NOTIFY_RESUME	6	/* resumption notification requested */
 #define TIF_POLLING_NRFLAG	16	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE		17
@@ -109,6 +108,7 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
 #define TIF_DB_DISABLED		19	/* debug trap disabled for fsyscall */
 #define TIF_FREEZE		20	/* is freezing for suspend */
 #define TIF_RESTORE_RSE		21	/* user RBS is newer than kernel RBS */
+#define TIF_RESTORE_SIGMASK	22	/* restore signal mask in do_signal() */
 
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
@@ -126,8 +126,7 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
 
 /* "work to do on user-return" bits */
 #define TIF_ALLWORK_MASK	(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SYSCALL_AUDIT|\
-				 _TIF_NEED_RESCHED| _TIF_SYSCALL_TRACE|\
-				 _TIF_RESTORE_SIGMASK)
+				 _TIF_NEED_RESCHED|_TIF_SYSCALL_TRACE)
 /* like TIF_ALLWORK_BITS but sans TIF_SYSCALL_TRACE or TIF_SYSCALL_AUDIT */
 #define TIF_WORK_MASK		(TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT))