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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-03 15:50:44 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-16 14:42:39 +0200 |
| commit | 5e8010cb50d3de7202641c0088c211f7c9593ebc (patch) | |
| tree | 56e43d01cb815ccac549af9c3c4a1dfd82fb5dee | |
| parent | 161beff8f40d83bb144b52f34cf966357162cdf1 (diff) | |
| download | op-kernel-dev-5e8010cb50d3de7202641c0088c211f7c9593ebc.zip op-kernel-dev-5e8010cb50d3de7202641c0088c211f7c9593ebc.tar.gz | |
s390: replace TIF_SIE with PF_VCPU
Replace the check for TIF_SIE in the fault handler by a check for PF_VCPU.
With the last user of TIF_SIE gone we can now remove the bit.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/thread_info.h | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/entry64.S | 3 | ||||
| -rw-r--r-- | arch/s390/mm/fault.c | 2 |
3 files changed, 1 insertions, 6 deletions
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index a730381..003b04e 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -95,7 +95,6 @@ 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_SIE 12 /* guest execution active */ #define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_31BIT 17 /* 32bit process */ @@ -114,7 +113,6 @@ 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_SIE (1<<TIF_SIE) #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/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 570c29d..3a633af 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -968,7 +968,6 @@ ENTRY(sie64a) xc __SF_EMPTY+16(8,%r15),__SF_EMPTY+16(%r15) # host id == 0 lmg %r0,%r13,0(%r3) # load guest gprs 0-13 lg %r14,__LC_THREAD_INFO # pointer thread_info struct - oi __TI_flags+6(%r14),_TIF_SIE>>8 sie_loop: lg %r14,__LC_THREAD_INFO # pointer thread_info struct tm __TI_flags+7(%r14),_TIF_EXIT_SIE @@ -986,7 +985,6 @@ sie_done: lg %r14,__LC_THREAD_INFO # pointer thread_info struct sie_exit: lctlg %c1,%c1,__LC_USER_ASCE # load primary asce - ni __TI_flags+6(%r14),255-(_TIF_SIE>>8) lg %r14,__SF_EMPTY+8(%r15) # load guest register save area stmg %r0,%r13,0(%r14) # save guest gprs 0-13 lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers @@ -995,7 +993,6 @@ sie_exit: sie_fault: lctlg %c1,%c1,__LC_USER_ASCE # load primary asce lg %r14,__LC_THREAD_INFO # pointer thread_info struct - ni __TI_flags+6(%r14),255-(_TIF_SIE>>8) lg %r14,__SF_EMPTY+8(%r15) # load guest register save area stmg %r0,%r13,0(%r14) # save guest gprs 0-13 lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 46ef3fd..b9aeaca 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -294,7 +294,7 @@ static inline int do_exception(struct pt_regs *regs, int access) down_read(&mm->mmap_sem); #ifdef CONFIG_PGSTE - if (test_tsk_thread_flag(current, TIF_SIE) && S390_lowcore.gmap) { + if ((current->flags & PF_VCPU) && S390_lowcore.gmap) { address = __gmap_fault(address, (struct gmap *) S390_lowcore.gmap); if (address == -EFAULT) { |
