s390: opt into HAVE_COPY_THREAD_TLS
This the s390 version of commithifive-unleashed-5.1c1bd55f922
("x86: opt into HAVE_COPY_THREAD_TLS, for both 32-bit and 64-bit"). Simply use the tls system call argument instead of extracting the tls argument by magic from the pt_regs structure. See commit3033f14ab7
("clone: support passing tls argument via C rather than pt_regs magic") for more background. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
parent
b5a882fcf1
commit
f50c0e6371
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@ -134,6 +134,7 @@ config S390
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select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
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select HAVE_CMPXCHG_DOUBLE
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select HAVE_CMPXCHG_LOCAL
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select HAVE_COPY_THREAD_TLS
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select HAVE_DEBUG_KMEMLEAK
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select HAVE_DMA_API_DEBUG
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select HAVE_DMA_CONTIGUOUS
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@ -100,8 +100,8 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
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return 0;
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}
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int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
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unsigned long arg, struct task_struct *p)
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int copy_thread_tls(unsigned long clone_flags, unsigned long new_stackp,
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unsigned long arg, struct task_struct *p, unsigned long tls)
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{
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struct fake_frame
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{
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@ -156,7 +156,6 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
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/* Set a new TLS ? */
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if (clone_flags & CLONE_SETTLS) {
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unsigned long tls = frame->childregs.gprs[6];
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if (is_compat_task()) {
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p->thread.acrs[0] = (unsigned int)tls;
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} else {
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