sanitize tsk_is_polling()

Make default just return 0.  The current default (checking
TIF_POLLING_NRFLAG) is taken to architectures that need it;
ones that don't do polling in their idle threads don't need
to defined TIF_POLLING_NRFLAG at all.

ia64 defined both TS_POLLING (used by its tsk_is_polling())
and TIF_POLLING_NRFLAG (not used at all).  Killed the latter...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h
index 2601c8e..4554ecb 100644 (file)
--- a/arch/alpha/include/asm/thread_info.h
+++ b/arch/alpha/include/asm/thread_info.h
@@ -116,5 +116,7 @@ register struct thread_info *__current_thread_info __asm__("$8");
                 (int __user *)(value));                                \
        })
 
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* __KERNEL__ */
 #endif /* _ALPHA_THREAD_INFO_H */

diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index af7b0bd..b2d6b41 100644 (file)
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -148,7 +148,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define TIF_NOTIFY_RESUME      2       /* callback before returning to user */
 #define TIF_SYSCALL_TRACE      8
 #define TIF_SYSCALL_AUDIT      9
-#define TIF_POLLING_NRFLAG     16
 #define TIF_USING_IWMMXT       17
 #define TIF_MEMDIE             18      /* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK    20
@@ -160,7 +159,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define _TIF_NOTIFY_RESUME     (1 << TIF_NOTIFY_RESUME)
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
 #define _TIF_SYSCALL_AUDIT     (1 << TIF_SYSCALL_AUDIT)
-#define _TIF_POLLING_NRFLAG    (1 << TIF_POLLING_NRFLAG)
 #define _TIF_USING_IWMMXT      (1 << TIF_USING_IWMMXT)
 #define _TIF_SECCOMP           (1 << TIF_SECCOMP)
 

diff --git a/arch/avr32/include/asm/thread_info.h b/arch/avr32/include/asm/thread_info.h
index a32c88c..dc0c457 100644 (file)
--- a/arch/avr32/include/asm/thread_info.h
+++ b/arch/avr32/include/asm/thread_info.h
@@ -77,8 +77,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SYSCALL_TRACE       0       /* syscall trace active */
 #define TIF_SIGPENDING          1       /* signal pending */
 #define TIF_NEED_RESCHED        2       /* rescheduling necessary */
-#define TIF_POLLING_NRFLAG      3       /* true if poll_idle() is polling
-                                          TIF_NEED_RESCHED */
 #define TIF_BREAKPOINT         4       /* enter monitor mode on return */
 #define TIF_SINGLE_STEP                5       /* single step in progress */
 #define TIF_MEMDIE             6       /* is terminating due to OOM killer */
@@ -91,7 +89,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1 << TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG    (1 << TIF_POLLING_NRFLAG)
 #define _TIF_SINGLE_STEP       (1 << TIF_SINGLE_STEP)
 #define _TIF_MEMDIE            (1 << TIF_MEMDIE)
 #define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP)
@@ -104,7 +101,6 @@ static inline struct thread_info *current_thread_info(void)
        ((1 << TIF_SIGPENDING)                  \
         | _TIF_NOTIFY_RESUME                   \
         | (1 << TIF_NEED_RESCHED)              \
-        | (1 << TIF_POLLING_NRFLAG)            \
         | (1 << TIF_BREAKPOINT)                \
         | (1 << TIF_RESTORE_SIGMASK))
 

diff --git a/arch/blackfin/include/asm/thread_info.h b/arch/blackfin/include/asm/thread_info.h
index f9a8731..3894005 100644 (file)
--- a/arch/blackfin/include/asm/thread_info.h
+++ b/arch/blackfin/include/asm/thread_info.h
@@ -96,8 +96,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SYSCALL_TRACE      0       /* syscall trace active */
 #define TIF_SIGPENDING         1       /* signal pending */
 #define TIF_NEED_RESCHED       2       /* rescheduling necessary */
-#define TIF_POLLING_NRFLAG     3       /* true if poll_idle() is polling
-                                          TIF_NEED_RESCHED */
 #define TIF_MEMDIE             4       /* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK    5       /* restore signal mask in do_signal() */
 #define TIF_IRQ_SYNC           7       /* sync pipeline stage */
@@ -108,7 +106,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_TRACE     (1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1<<TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 #define _TIF_IRQ_SYNC          (1<<TIF_IRQ_SYNC)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
 #define _TIF_SINGLESTEP                (1<<TIF_SINGLESTEP)

diff --git a/arch/c6x/include/asm/thread_info.h b/arch/c6x/include/asm/thread_info.h
index 1710bcb..4c8dc56 100644 (file)
--- a/arch/c6x/include/asm/thread_info.h
+++ b/arch/c6x/include/asm/thread_info.h
@@ -97,7 +97,6 @@ struct thread_info *current_thread_info(void)
 #define TIF_NEED_RESCHED       3       /* rescheduling necessary */
 #define TIF_RESTORE_SIGMASK    4       /* restore signal mask in do_signal() */
 
-#define TIF_POLLING_NRFLAG     16      /* true if polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE             17      /* OOM killer killed process */
 
 #define TIF_WORK_MASK          0x00007FFE /* work on irq/exception return */

diff --git a/arch/c6x/kernel/asm-offsets.c b/arch/c6x/kernel/asm-offsets.c
index 759ad6d..60f1e43 100644 (file)
--- a/arch/c6x/kernel/asm-offsets.c
+++ b/arch/c6x/kernel/asm-offsets.c
@@ -116,7 +116,6 @@ void foo(void)
        DEFINE(_TIF_NOTIFY_RESUME, (1<<TIF_NOTIFY_RESUME));
        DEFINE(_TIF_SIGPENDING, (1<<TIF_SIGPENDING));
        DEFINE(_TIF_NEED_RESCHED, (1<<TIF_NEED_RESCHED));
-       DEFINE(_TIF_POLLING_NRFLAG, (1<<TIF_POLLING_NRFLAG));
 
        DEFINE(_TIF_ALLWORK_MASK, TIF_ALLWORK_MASK);
        DEFINE(_TIF_WORK_MASK, TIF_WORK_MASK);

diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h
index 0e0b52d..07c8c40 100644 (file)
--- a/arch/cris/include/asm/thread_info.h
+++ b/arch/cris/include/asm/thread_info.h
@@ -78,14 +78,12 @@ struct thread_info {
 #define TIF_SIGPENDING         2       /* signal pending */
 #define TIF_NEED_RESCHED       3       /* rescheduling necessary */
 #define TIF_RESTORE_SIGMASK    9       /* restore signal mask in do_signal() */
-#define TIF_POLLING_NRFLAG     16      /* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE             17      /* is terminating due to OOM killer */
 
 #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_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 
 #define _TIF_WORK_MASK         0x0000FFFE      /* work to do on interrupt/exception return */
 #define _TIF_ALLWORK_MASK      0x0000FFFF      /* work to do on any return to u-space */

diff --git a/arch/frv/include/asm/thread_info.h b/arch/frv/include/asm/thread_info.h
index 5108ede..bebd7ea 100644 (file)
--- a/arch/frv/include/asm/thread_info.h
+++ b/arch/frv/include/asm/thread_info.h
@@ -94,7 +94,6 @@ register struct thread_info *__current_thread_info asm("gr15");
 #define TIF_NEED_RESCHED       3       /* rescheduling necessary */
 #define TIF_SINGLESTEP         4       /* restore singlestep on return to user mode */
 #define TIF_RESTORE_SIGMASK    5       /* restore signal mask in do_signal() */
-#define TIF_POLLING_NRFLAG     6       /* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE             7       /* is terminating due to OOM killer */
 
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
@@ -102,7 +101,6 @@ register struct thread_info *__current_thread_info asm("gr15");
 #define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1 << TIF_NEED_RESCHED)
 #define _TIF_SINGLESTEP                (1 << TIF_SINGLESTEP)
-#define _TIF_POLLING_NRFLAG    (1 << TIF_POLLING_NRFLAG)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK         \

diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h
index aa0406b..63cc298 100644 (file)
--- a/arch/h8300/include/asm/thread_info.h
+++ b/arch/h8300/include/asm/thread_info.h
@@ -85,8 +85,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SYSCALL_TRACE      0       /* syscall trace active */
 #define TIF_SIGPENDING         1       /* signal pending */
 #define TIF_NEED_RESCHED       2       /* rescheduling necessary */
-#define TIF_POLLING_NRFLAG     3       /* true if poll_idle() is polling
-                                          TIF_NEED_RESCHED */
 #define TIF_MEMDIE             4       /* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK    5       /* restore signal mask in do_signal() */
 #define TIF_NOTIFY_RESUME      6       /* callback before returning to user */
@@ -95,7 +93,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_TRACE     (1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1<<TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 #define _TIF_NOTIFY_RESUME     (1 << TIF_NOTIFY_RESUME)
 
 #define _TIF_WORK_MASK         0x0000FFFE      /* work to do on interrupt/exception return */

diff --git a/arch/hexagon/include/asm/thread_info.h b/arch/hexagon/include/asm/thread_info.h
index b5a6d43..7f33f16 100644 (file)
--- a/arch/hexagon/include/asm/thread_info.h
+++ b/arch/hexagon/include/asm/thread_info.h
@@ -123,7 +123,6 @@ register struct thread_info *__current_thread_info asm(QUOTED_THREADINFO_REG);
 #define TIF_IRET                5       /* return with iret */
 #define TIF_RESTORE_SIGMASK     6       /* restore sig mask in do_signal() */
 /* true if poll_idle() is polling TIF_NEED_RESCHED */
-#define TIF_POLLING_NRFLAG      16
 #define TIF_MEMDIE              17      /* OOM killer killed process */
 
 #define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
@@ -132,7 +131,6 @@ register struct thread_info *__current_thread_info asm(QUOTED_THREADINFO_REG);
 #define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
 #define _TIF_SINGLESTEP         (1 << TIF_SINGLESTEP)
 #define _TIF_IRET               (1 << TIF_IRET)
-#define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
 
 /* work to do on interrupt/exception return - All but TIF_SYSCALL_TRACE */
 #define _TIF_WORK_MASK          (0x0000FFFF & ~_TIF_SYSCALL_TRACE)

diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index f7ee853..ff2ae41 100644 (file)
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -106,7 +106,6 @@ struct thread_info {
 #define TIF_SYSCALL_AUDIT      3       /* syscall auditing active */
 #define TIF_SINGLESTEP         4       /* restore singlestep on return to user mode */
 #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      /* is terminating due to OOM killer */
 #define TIF_MCA_INIT           18      /* this task is processing MCA or INIT */
 #define TIF_DB_DISABLED                19      /* debug trap disabled for fsyscall */
@@ -119,7 +118,6 @@ struct thread_info {
 #define _TIF_NOTIFY_RESUME     (1 << TIF_NOTIFY_RESUME)
 #define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1 << TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG    (1 << TIF_POLLING_NRFLAG)
 #define _TIF_MCA_INIT          (1 << TIF_MCA_INIT)
 #define _TIF_DB_DISABLED       (1 << TIF_DB_DISABLED)
 #define _TIF_RESTORE_RSE       (1 << TIF_RESTORE_RSE)

diff --git a/arch/m32r/include/asm/thread_info.h b/arch/m32r/include/asm/thread_info.h
index 18b0584..763e8ae 100644 (file)
--- a/arch/m32r/include/asm/thread_info.h
+++ b/arch/m32r/include/asm/thread_info.h
@@ -123,7 +123,6 @@ static inline unsigned int get_thread_fault_code(void)
 #define TIF_NOTIFY_RESUME      5       /* callback before returning to user */
 #define TIF_RESTORE_SIGMASK    8       /* restore signal mask in do_signal() */
 #define TIF_USEDFPU            16      /* FPU was used by this task this quantum (SMP) */
-#define TIF_POLLING_NRFLAG     17      /* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE             18      /* is terminating due to OOM killer */
 
 #define _TIF_SYSCALL_TRACE     (1<<TIF_SYSCALL_TRACE)
@@ -133,7 +132,6 @@ static inline unsigned int get_thread_fault_code(void)
 #define _TIF_IRET              (1<<TIF_IRET)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
 #define _TIF_USEDFPU           (1<<TIF_USEDFPU)
-#define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 
 #define _TIF_WORK_MASK         0x0000FFFE      /* work to do on interrupt/exception return */
 #define _TIF_ALLWORK_MASK      0x0000FFFF      /* work to do on any return to u-space */

diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
index 6c61023..a256534 100644 (file)
--- a/arch/microblaze/include/asm/thread_info.h
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -184,6 +184,7 @@ static inline bool test_and_clear_restore_sigmask(void)
        ti->status &= ~TS_RESTORE_SIGMASK;
        return true;
 }
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
 #endif
 
 #endif /* __KERNEL__ */

diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index a75a11a..8debe9e 100644 (file)
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -103,7 +103,6 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define TIF_NOTIFY_RESUME      5       /* callback before returning to user */
 #define TIF_RESTORE_SIGMASK    9       /* restore signal mask in do_signal() */
 #define TIF_USEDFPU            16      /* FPU was used by this task this quantum (SMP) */
-#define TIF_POLLING_NRFLAG     17      /* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE             18      /* is terminating due to OOM killer */
 #define TIF_FIXADE             20      /* Fix address errors in software */
 #define TIF_LOGADE             21      /* Log address errors to syslog */
@@ -126,7 +125,6 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define _TIF_SECCOMP           (1<<TIF_SECCOMP)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
 #define _TIF_USEDFPU           (1<<TIF_USEDFPU)
-#define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 #define _TIF_FIXADE            (1<<TIF_FIXADE)
 #define _TIF_LOGADE            (1<<TIF_LOGADE)
 #define _TIF_32BIT_REGS                (1<<TIF_32BIT_REGS)

diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h
index 224b426..f90062b 100644 (file)
--- a/arch/mn10300/include/asm/thread_info.h
+++ b/arch/mn10300/include/asm/thread_info.h
@@ -165,6 +165,8 @@ void arch_release_thread_info(struct thread_info *ti);
 #define _TIF_WORK_MASK         0x0000FFFE      /* work to do on interrupt/exception return */
 #define _TIF_ALLWORK_MASK      0x0000FFFF      /* work to do on any return to u-space */
 
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_THREAD_INFO_H */

diff --git a/arch/openrisc/include/asm/thread_info.h b/arch/openrisc/include/asm/thread_info.h
index d797acc..07f3212 100644 (file)
--- a/arch/openrisc/include/asm/thread_info.h
+++ b/arch/openrisc/include/asm/thread_info.h
@@ -128,6 +128,8 @@ register struct thread_info *current_thread_info_reg asm("r10");
 /* For OpenRISC, this is anything in the LSW other than syscall trace */
 #define _TIF_WORK_MASK (0xff & ~(_TIF_SYSCALL_TRACE|_TIF_SINGLESTEP))
 
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_THREAD_INFO_H */

diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 2556308..d0e2fe7 100644 (file)
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -75,6 +75,8 @@ struct thread_info {
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                  _TIF_NEED_RESCHED)
 
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_PARISC_THREAD_INFO_H */

diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index faf9352..5b1974f 100644 (file)
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -177,6 +177,8 @@ static inline bool test_thread_local_flags(unsigned int flags)
 #define is_32bit_task()        (1)
 #endif
 
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* __KERNEL__ */

diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 4b4f6ff..9e2cfe0 100644 (file)
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -91,8 +91,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SYSCALL_AUDIT      9       /* syscall auditing active */
 #define TIF_SECCOMP            10      /* secure computing */
 #define TIF_SYSCALL_TRACEPOINT 11      /* syscall tracepoint instrumentation */
-#define TIF_POLLING_NRFLAG     16      /* true if poll_idle() is polling
-                                          TIF_NEED_RESCHED */
 #define TIF_31BIT              17      /* 32bit process */
 #define TIF_MEMDIE             18      /* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK    19      /* restore signal mask in do_signal() */
@@ -108,7 +106,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_AUDIT     (1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SECCOMP           (1<<TIF_SECCOMP)
 #define _TIF_SYSCALL_TRACEPOINT        (1<<TIF_SYSCALL_TRACEPOINT)
-#define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 #define _TIF_31BIT             (1<<TIF_31BIT)
 #define _TIF_SINGLE_STEP       (1<<TIF_SINGLE_STEP)
 

diff --git a/arch/score/include/asm/thread_info.h b/arch/score/include/asm/thread_info.h
index 9322a91..1425cc0 100644 (file)
--- a/arch/score/include/asm/thread_info.h
+++ b/arch/score/include/asm/thread_info.h
@@ -86,15 +86,12 @@ register struct thread_info *__current_thread_info __asm__("r28");
 #define TIF_NEED_RESCHED       2       /* rescheduling necessary */
 #define TIF_NOTIFY_RESUME      5       /* callback before returning to user */
 #define TIF_RESTORE_SIGMASK    9       /* restore signal mask in do_signal() */
-#define TIF_POLLING_NRFLAG     17      /* true if poll_idle() is polling
-                                                TIF_NEED_RESCHED */
 #define TIF_MEMDIE             18      /* is terminating due to OOM killer */
 
 #define _TIF_SYSCALL_TRACE     (1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1<<TIF_NEED_RESCHED)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
-#define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 
 #define _TIF_WORK_MASK         (0x0000ffff)
 

diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index bc13b57..7d5ac4e 100644 (file)
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -206,6 +206,9 @@ static inline bool test_and_clear_restore_sigmask(void)
        ti->status &= ~TS_RESTORE_SIGMASK;
        return true;
 }
+
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* __KERNEL__ */

diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index dd38075..25849ae 100644 (file)
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -132,6 +132,8 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define _TIF_DO_NOTIFY_RESUME_MASK     (_TIF_NOTIFY_RESUME | \
                                         _TIF_SIGPENDING)
 
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_THREAD_INFO_H */

diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index cfa8c38..4e22766 100644 (file)
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -256,6 +256,9 @@ static inline bool test_and_clear_restore_sigmask(void)
        ti->status &= ~TS_RESTORE_SIGMASK;
        return true;
 }
+
+#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* __KERNEL__ */

diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h
index c04e5ab..2c8eeb2 100644 (file)
--- a/arch/um/include/asm/thread_info.h
+++ b/arch/um/include/asm/thread_info.h
@@ -65,8 +65,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_SYSCALL_TRACE      0       /* syscall trace active */
 #define TIF_SIGPENDING         1       /* signal pending */
 #define TIF_NEED_RESCHED       2       /* rescheduling necessary */
-#define TIF_POLLING_NRFLAG      3       /* true if poll_idle() is polling
-                                        * TIF_NEED_RESCHED */
 #define TIF_RESTART_BLOCK      4
 #define TIF_MEMDIE             5       /* is terminating due to OOM killer */
 #define TIF_SYSCALL_AUDIT      6
@@ -76,7 +74,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1 << TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
 #define _TIF_MEMDIE            (1 << TIF_MEMDIE)
 #define _TIF_SYSCALL_AUDIT     (1 << TIF_SYSCALL_AUDIT)
 

diff --git a/arch/xtensa/include/asm/thread_info.h b/arch/xtensa/include/asm/thread_info.h
index a27bc8c..214be73 100644 (file)
--- a/arch/xtensa/include/asm/thread_info.h
+++ b/arch/xtensa/include/asm/thread_info.h
@@ -132,14 +132,12 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_MEMDIE             5       /* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK    6       /* restore signal mask in do_signal() */
 #define TIF_NOTIFY_RESUME      7       /* callback before returning to user */
-#define TIF_POLLING_NRFLAG     16      /* true if poll_idle() is polling TIF_NEED_RESCHED */
 
 #define _TIF_SYSCALL_TRACE     (1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1<<TIF_NEED_RESCHED)
 #define _TIF_SINGLESTEP                (1<<TIF_SINGLESTEP)
 #define _TIF_IRET              (1<<TIF_IRET)
-#define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
 
 #define _TIF_WORK_MASK         0x0000FFFE      /* work to do on interrupt/exception return */
 #define _TIF_ALLWORK_MASK      0x0000FFFF      /* work to do on any return to u-space */

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 649c9f8..9dcf93c 100644 (file)
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -505,7 +505,7 @@ static inline void init_hrtick(void)
 #ifdef CONFIG_SMP
 
 #ifndef tsk_is_polling
-#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
+#define tsk_is_polling(t) 0
 #endif
 
 void resched_task(struct task_struct *p)