[glibc/users/skpgkp2/2.33/master] (7 commits) nptl: Add backoff mechanism to spinlock loop

[glibc/users/skpgkp2/2.33/master] (7 commits) nptl: Add backoff mechanism to spinlock loop

[Sunil Pandey]

The branch 'users/skpgkp2/2.33/master' was updated to point to:

 b2af58864b... nptl: Add backoff mechanism to spinlock loop

It previously pointed to:

 6646355364... s390x: Update math: redirect roundeven function

Diff:

!!! WARNING: THE FOLLOWING COMMITS ARE NO LONGER ACCESSIBLE (LOST):
-------------------------------------------------------------------

  6646355... s390x: Update math: redirect roundeven function
  a2f4d73... Update math: redirect roundeven function
  9561324... Use GCC builtins for roundeven functions if desired.
  47aaeb3... nptl: Add backoff mechanism to spinlock loop
  79b8558... sysdeps: Add 'get_fast_jitter' interace in fast-jitter.h
  2574fdf... nptl: Effectively skip CAS in spinlock loop
  520639f... Move assignment out of the CAS condition
  2b5fe38... Add LLL_MUTEX_READ_LOCK [BZ #28537]
  b67c292... Avoid extra load with CAS in __pthread_mutex_clocklock_comm
  b62b86c... Avoid extra load with CAS in __pthread_mutex_lock_full [BZ 
  4f2167e... x86_64: roundeven with sse4.1 support
  3a17831... math: redirect roundeven function
  6ff2a80... AArch64: Add support for roundeven[f]


Summary of changes (added commits):
-----------------------------------

  b2af588... nptl: Add backoff mechanism to spinlock loop
  79bff5c... sysdeps: Add 'get_fast_jitter' interace in fast-jitter.h
  49479d2... nptl: Effectively skip CAS in spinlock loop
  c037091... Move assignment out of the CAS condition
  d7d3222... Add LLL_MUTEX_READ_LOCK [BZ #28537]
  e6f4920... Avoid extra load with CAS in __pthread_mutex_clocklock_comm
  f1cacf9... Avoid extra load with CAS in __pthread_mutex_lock_full [BZ