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from 8d71242 Do not require memset elimination in explicit_bzero test new c813dae S390: Use C11-like atomics instead of plain memory accesses i [...] new 8bfc4a2 S390: Use own tbegin macro instead of __builtin_tbegin. new 53c5c3d S390: Use new __libc_tbegin_retry macro in elision-lock.c. new dd037fb S390: Optimize lock-elision by decrementing adapt_count at unlock.

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Summary of changes: ChangeLog | 35 +++++ sysdeps/unix/sysv/linux/s390/Makefile | 2 +- sysdeps/unix/sysv/linux/s390/elision-lock.c | 94 +++++++------ sysdeps/unix/sysv/linux/s390/elision-trylock.c | 76 ++++++----- sysdeps/unix/sysv/linux/s390/elision-unlock.c | 35 +++-- sysdeps/unix/sysv/linux/s390/htm.h | 181 +++++++++++++++++++++++++ sysdeps/unix/sysv/linux/s390/lowlevellock.h | 4 +- 7 files changed, 335 insertions(+), 92 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/s390/htm.h