Revert 8f8f75: "linux-user: Run multi-threaded code on a single core"tizen_6.5.m2_releasetizen_6.5_base

Approved by Tizen PL team at 2021-05-27

Change-Id: I96f1312f0dd2d1e7aca611486c8df35669e2f722

1 files changed, 0 insertions, 9 deletions

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 2a9b494b0..08ee9908b 100755
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6015,15 +6015,6 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
         if (nptl_flags & CLONE_SETTLS)
             cpu_set_tls (new_env, newtls);
 
-        /* agraf: Pin ourselves to a single CPU when running multi-threaded.
-           This turned out to improve stability for me. */
-        {
-            cpu_set_t mask;
-            CPU_ZERO(&mask);
-            CPU_SET(0, &mask);
-            sched_setaffinity(0, sizeof(mask), &mask);
-        }
-
         /* Grab a mutex so that thread setup appears atomic.  */
         pthread_mutex_lock(&clone_lock);