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preempt: Make PREEMPT_ACTIVE generic 

No point in having this bit defined by architecture.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130917183629.090698799@linutronix.de
This commit is contained in:
Thomas Gleixner 2013-09-17 18:53:09 +00:00
parent 9385d949d5
commit 00d1a39e69
32 changed files with 8 additions and 89 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/alpha/include/asm/thread_info.h
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@ -58,8 +58,6 @@ register struct thread_info *__current_thread_info __asm__("$8");
#define THREAD_SIZE_ORDER 1
#define THREAD_SIZE (2*PAGE_SIZE)
#define PREEMPT_ACTIVE 0x40000000
/*
* Thread information flags:
* - these are process state flags and used from assembly

2
arch/arc/include/asm/thread_info.h
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@ -80,8 +80,6 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
#endif /* !__ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x10000000
/*
* thread information flags
* - these are process state flags that various assembly files may need to

6
arch/arm/include/asm/thread_info.h
View File

@ -140,12 +140,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
struct user_vfp_exc __user *);
#endif
/*
* We use bit 30 of the preempt_count to indicate that kernel
* preemption is occurring. See <asm/hardirq.h>.
*/
#define PREEMPT_ACTIVE 0x40000000
/*
* thread information flags:
* TIF_SYSCALL_TRACE - syscall trace active

6
arch/arm64/include/asm/thread_info.h
View File

@ -88,12 +88,6 @@ static inline struct thread_info *current_thread_info(void)
#endif
/*
* We use bit 30 of the preempt_count to indicate that kernel
* preemption is occurring. See <asm/hardirq.h>.
*/
#define PREEMPT_ACTIVE 0x40000000
/*
* thread information flags:
* TIF_SYSCALL_TRACE - syscall trace active

2
arch/avr32/include/asm/thread_info.h
View File

@ -66,8 +66,6 @@ static inline struct thread_info *current_thread_info(void)
#endif /* !__ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x40000000
/*
* Thread information flags
* - these are process state flags that various assembly files may need to access

2
arch/blackfin/include/asm/thread_info.h
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@ -88,8 +88,6 @@ static inline struct thread_info *current_thread_info(void)
#define TI_CPU 12
#define TI_PREEMPT 16
#define PREEMPT_ACTIVE 0x4000000
/*
* thread information flag bit numbers
*/

2
arch/c6x/include/asm/thread_info.h
View File

@ -84,8 +84,6 @@ struct thread_info *current_thread_info(void)
#define put_thread_info(ti) put_task_struct((ti)->task)
#endif /* __ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x10000000
/*
* thread information flag bit numbers
* - pending work-to-be-done flags are in LSW

2
arch/cris/include/asm/thread_info.h
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@ -44,8 +44,6 @@ struct thread_info {
#endif
#define PREEMPT_ACTIVE 0x10000000
/*
* macros/functions for gaining access to the thread information structure
*/

2
arch/frv/include/asm/thread_info.h
View File

@ -52,8 +52,6 @@ struct thread_info {
#endif
#define PREEMPT_ACTIVE 0x10000000
/*
* macros/functions for gaining access to the thread information structure
*/

4
arch/hexagon/include/asm/thread_info.h
View File

@ -73,10 +73,6 @@ struct thread_info {
#endif /* __ASSEMBLY__ */
/* looks like "linux/hardirq.h" uses this. */
#define PREEMPT_ACTIVE 0x10000000
#ifndef __ASSEMBLY__
#define INIT_THREAD_INFO(tsk) \

3
arch/ia64/include/asm/thread_info.h
View File

@ -11,9 +11,6 @@
#include <asm/processor.h>
#include <asm/ptrace.h>
#define PREEMPT_ACTIVE_BIT 30
#define PREEMPT_ACTIVE (1 << PREEMPT_ACTIVE_BIT)
#ifndef __ASSEMBLY__
/*

2
arch/m32r/include/asm/thread_info.h
View File

@ -53,8 +53,6 @@ struct thread_info {
#endif
#define PREEMPT_ACTIVE 0x10000000
#define THREAD_SIZE (PAGE_SIZE << 1)
#define THREAD_SIZE_ORDER 1
/*

2
arch/m68k/include/asm/thread_info.h
View File

@ -35,8 +35,6 @@ struct thread_info {
};
#endif /* __ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x4000000
#define INIT_THREAD_INFO(tsk) \
{ \
.task = &tsk, \

2
arch/metag/include/asm/thread_info.h
View File

@ -46,8 +46,6 @@ struct thread_info {
#endif
#define PREEMPT_ACTIVE 0x10000000
#ifdef CONFIG_4KSTACKS
#define THREAD_SHIFT 12
#else

2
arch/microblaze/include/asm/thread_info.h
View File

@ -106,8 +106,6 @@ static inline struct thread_info *current_thread_info(void)
/* thread information allocation */
#endif /* __ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x10000000
/*
* thread information flags
* - these are process state flags that various assembly files may

2
arch/mips/include/asm/thread_info.h
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@ -92,8 +92,6 @@ static inline struct thread_info *current_thread_info(void)
#define STACK_WARN (THREAD_SIZE / 8)
#define PREEMPT_ACTIVE 0x10000000
/*
* thread information flags
* - these are process state flags that various assembly files may need to

2
arch/mn10300/include/asm/thread_info.h
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@ -16,8 +16,6 @@
#include <asm/page.h>
#define PREEMPT_ACTIVE 0x10000000
#ifdef CONFIG_4KSTACKS
#define THREAD_SIZE (4096)
#define THREAD_SIZE_ORDER (0)

3
arch/parisc/include/asm/thread_info.h
View File

@ -46,9 +46,6 @@ struct thread_info {
#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER)
#define PREEMPT_ACTIVE_BIT 28
#define PREEMPT_ACTIVE (1 << PREEMPT_ACTIVE_BIT)
/*
* thread information flags
*/

2
arch/powerpc/include/asm/thread_info.h
View File

@ -82,8 +82,6 @@ static inline struct thread_info *current_thread_info(void)
#endif /* __ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x10000000
/*
* thread information flag bit numbers
*/

2
arch/s390/include/asm/thread_info.h
View File

@ -111,6 +111,4 @@ static inline struct thread_info *current_thread_info(void)
#define is_32bit_task() (1)
#endif
#define PREEMPT_ACTIVE 0x4000000
#endif /* _ASM_THREAD_INFO_H */

2
arch/score/include/asm/thread_info.h
View File

@ -72,8 +72,6 @@ register struct thread_info *__current_thread_info __asm__("r28");
#endif /* !__ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x10000000
/*
* thread information flags
* - these are process state flags that various assembly files may need to

2
arch/sh/include/asm/thread_info.h
View File

@ -41,8 +41,6 @@ struct thread_info {
#endif
#define PREEMPT_ACTIVE 0x10000000
#if defined(CONFIG_4KSTACKS)
#define THREAD_SHIFT 12
#else

6
arch/sh/kernel/entry-common.S
View File

@ -108,7 +108,7 @@ need_resched:
and #(0xf0>>1), r0 ! interrupts off (exception path)?
cmp/eq #(0xf0>>1), r0
bt noresched
mov.l 3f, r0
mov.l 1f, r0
jsr @r0 ! call preempt_schedule_irq
nop
bra need_resched
@ -119,9 +119,7 @@ noresched:
nop
.align 2
1: .long PREEMPT_ACTIVE
2: .long schedule
3: .long preempt_schedule_irq
1: .long preempt_schedule_irq
#endif
ENTRY(resume_userspace)

2
arch/sparc/include/asm/thread_info_32.h
View File

@ -105,8 +105,6 @@ register struct thread_info *current_thread_info_reg asm("g6");
#define TI_W_SAVED 0x250
/* #define TI_RESTART_BLOCK 0x25n */ /* Nobody cares */
#define PREEMPT_ACTIVE 0x4000000
/*
* thread information flag bit numbers
*/

2
arch/sparc/include/asm/thread_info_64.h
View File

@ -111,8 +111,6 @@ struct thread_info {
#define THREAD_SHIFT PAGE_SHIFT
#endif /* PAGE_SHIFT == 13 */
#define PREEMPT_ACTIVE 0x10000000
/*
* macros/functions for gaining access to the thread information structure
*/

2
arch/tile/include/asm/thread_info.h
View File

@ -113,8 +113,6 @@ extern void _cpu_idle(void);
#endif /* !__ASSEMBLY__ */
#define PREEMPT_ACTIVE 0x10000000
/*
* Thread information flags that various assembly files may need to access.
* Keep flags accessed frequently in low bits, particular since it makes

2
arch/um/include/asm/thread_info.h
View File

@ -60,8 +60,6 @@ static inline struct thread_info *current_thread_info(void)
#endif
#define PREEMPT_ACTIVE 0x10000000
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
#define TIF_SIGPENDING 1 /* signal pending */
#define TIF_NEED_RESCHED 2 /* rescheduling necessary */

6
arch/unicore32/include/asm/thread_info.h
View File

@ -117,12 +117,6 @@ static inline struct thread_info *current_thread_info(void)
#endif
/*
* We use bit 30 of the preempt_count to indicate that kernel
* preemption is occurring. See <asm/hardirq.h>.
*/
#define PREEMPT_ACTIVE 0x40000000
/*
* thread information flags:
* TIF_SYSCALL_TRACE - syscall trace active

2
arch/x86/include/asm/thread_info.h
View File

@ -153,8 +153,6 @@ struct thread_info {
#define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
#define PREEMPT_ACTIVE 0x10000000
#ifdef CONFIG_X86_32
#define STACK_WARN (THREAD_SIZE/8)

2
arch/xtensa/include/asm/thread_info.h
View File

@ -76,8 +76,6 @@ struct thread_info {
#endif
#define PREEMPT_ACTIVE 0x10000000
/*
* macros/functions for gaining access to the thread information structure
*/

15
include/linux/preempt_mask.h
View File

@ -17,10 +17,11 @@
* there are a few palaeontologic drivers which reenable interrupts in
* the handler, so we need more than one bit here.
*
* PREEMPT_MASK: 0x000000ff
* SOFTIRQ_MASK: 0x0000ff00
* HARDIRQ_MASK: 0x000f0000
* NMI_MASK: 0x00100000
* PREEMPT_MASK: 0x000000ff
* SOFTIRQ_MASK: 0x0000ff00
* HARDIRQ_MASK: 0x000f0000
* NMI_MASK: 0x00100000
* PREEMPT_ACTIVE: 0x00200000
*/
#define PREEMPT_BITS 8
#define SOFTIRQ_BITS 8
@ -46,15 +47,9 @@
#define SOFTIRQ_DISABLE_OFFSET (2 * SOFTIRQ_OFFSET)
#ifndef PREEMPT_ACTIVE
#define PREEMPT_ACTIVE_BITS 1
#define PREEMPT_ACTIVE_SHIFT (NMI_SHIFT + NMI_BITS)
#define PREEMPT_ACTIVE (__IRQ_MASK(PREEMPT_ACTIVE_BITS) << PREEMPT_ACTIVE_SHIFT)
#endif
#if PREEMPT_ACTIVE < (1 << (NMI_SHIFT + NMI_BITS))
#error PREEMPT_ACTIVE is too low!
#endif
#define hardirq_count() (preempt_count() & HARDIRQ_MASK)
#define softirq_count() (preempt_count() & SOFTIRQ_MASK)

2
include/linux/sched.h
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@ -22,7 +22,7 @@ struct sched_param {
#include <linux/errno.h>
#include <linux/nodemask.h>
#include <linux/mm_types.h>
#include <linux/preempt.h>
#include <linux/preempt_mask.h>
#include <asm/page.h>
#include <asm/ptrace.h>