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set_cputime(): interrupt enable/disable fix.

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Check interrupt enabled state in set_cputime() instead of enabling
them unconditionally on exit.

Change-Id: I99212855f33f5535f67f045665bf5e025c55b690
Fujitsu: POSTK_DEBUG_TEMP_FIX_98
This commit is contained in:
Shiratori, Takehiro
2018-10-17 14:44:27 +09:00
committed by Dominique Martinet
parent 190039f5d9
commit 6626204c99
1 changed files with 3 additions and 2 deletions
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5
kernel/syscall.c
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@ -9581,6 +9581,7 @@ set_cputime(int mode)
unsigned long tsc;
struct cpu_local_var *v;
struct ihk_os_cpu_monitor *monitor;
unsigned long irq_flags = 0;
if(clv == NULL)
return;
@ -9604,7 +9605,7 @@ set_cputime(int mode)
return;
}
cpu_disable_interrupt();
irq_flags = cpu_disable_interrupt_save();
tsc = rdtsc();
if(thread->base_tsc != 0){
unsigned long dtsc = tsc - thread->base_tsc;
@ -9685,7 +9686,7 @@ set_cputime(int mode)
}
}
}
cpu_enable_interrupt();
cpu_restore_interrupt(irq_flags);
}
long syscall(int num, ihk_mc_user_context_t *ctx)