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Commit 6f3fa3f0 authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

[S390] Remove unused user_seg from thread structure. 



Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent ba8a9229

arch/s390/kernel/process.c

+0 −2
Original line number Original line Diff line number Diff line
@@ -270,14 +270,12 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp, 
	save_fp_regs(&current->thread.fp_regs);

	save_fp_regs(&current->thread.fp_regs);

	memcpy(&p->thread.fp_regs, &current->thread.fp_regs,

	memcpy(&p->thread.fp_regs, &current->thread.fp_regs,

	       sizeof(s390_fp_regs));

	       sizeof(s390_fp_regs));

        p->thread.user_seg = __pa((unsigned long) p->mm->pgd) | _SEGMENT_TABLE;

	/* Set a new TLS ?  */

	/* Set a new TLS ?  */

	if (clone_flags & CLONE_SETTLS)

	if (clone_flags & CLONE_SETTLS)

		p->thread.acrs[0] = regs->gprs[6];

		p->thread.acrs[0] = regs->gprs[6];

#else /* CONFIG_64BIT */

#else /* CONFIG_64BIT */

	/* Save the fpu registers to new thread structure. */

	/* Save the fpu registers to new thread structure. */

	save_fp_regs(&p->thread.fp_regs);

	save_fp_regs(&p->thread.fp_regs);

        p->thread.user_seg = __pa((unsigned long) p->mm->pgd) | _REGION_TABLE;

	/* Set a new TLS ?  */

	/* Set a new TLS ?  */

	if (clone_flags & CLONE_SETTLS) {

	if (clone_flags & CLONE_SETTLS) {

		if (test_thread_flag(TIF_31BIT)) {

		if (test_thread_flag(TIF_31BIT)) {

include/asm-s390/processor.h

+3 −11
Original line number Original line Diff line number Diff line
@@ -93,7 +93,6 @@ struct thread_struct { 
	s390_fp_regs fp_regs;

	s390_fp_regs fp_regs;

	unsigned int  acrs[NUM_ACRS];

	unsigned int  acrs[NUM_ACRS];

        unsigned long ksp;              /* kernel stack pointer             */

        unsigned long ksp;              /* kernel stack pointer             */

        unsigned long user_seg;         /* HSTD                             */

	mm_segment_t mm_segment;

	mm_segment_t mm_segment;

        unsigned long prot_addr;        /* address of protection-excep.     */

        unsigned long prot_addr;        /* address of protection-excep.     */

        unsigned int error_code;        /* error-code of last prog-excep.   */

        unsigned int error_code;        /* error-code of last prog-excep.   */
@@ -134,15 +133,8 @@ struct stack_frame { 
# define __SWAPPER_PG_DIR __pa(&swapper_pg_dir[0]) + _REGION_TABLE

# define __SWAPPER_PG_DIR __pa(&swapper_pg_dir[0]) + _REGION_TABLE

#endif /* __s390x__ */

#endif /* __s390x__ */





#define INIT_THREAD {{0,{{0},{0},{0},{0},{0},{0},{0},{0},{0},{0},	       \

#define INIT_THREAD {							\

			    {0},{0},{0},{0},{0},{0}}},			       \

	.ksp = sizeof(init_stack) + (unsigned long) &init_stack,	\

		     {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},	       \

		     sizeof(init_stack) + (unsigned long) &init_stack,	       \

		     __SWAPPER_PG_DIR,					       \

		     {0},						       \

		     0,0,0,						       \

		     (per_struct) {{{{0,}}},0,0,0,0,{{0,}}},		       \

		     0, 0						       \

}

}





/*

/*