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schedule(): do not preempt while holding spinlocks or while in offloaded syscall

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This commit is contained in:
Balazs Gerofi
2015-08-06 10:36:13 +09:00
parent b77755d0f7
commit 328e69a335
7 changed files with 39 additions and 0 deletions
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3
kernel/mem.c
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@ -370,6 +370,8 @@ static void page_fault_handler(void *fault_addr, uint64_t reason, void *regs)
dkprintf("[%d]page_fault_handler(%p,%lx,%p)\n",
ihk_mc_get_processor_id(), fault_addr, reason, regs);
preempt_disable();
cpu_enable_interrupt();
error = page_fault_process_vm(proc->vm, fault_addr, reason);
@ -422,6 +424,7 @@ static void page_fault_handler(void *fault_addr, uint64_t reason, void *regs)
error = 0;
out:
preempt_enable();
dkprintf("[%d]page_fault_handler(%p,%lx,%p): (%d)\n",
ihk_mc_get_processor_id(), fault_addr, reason,
regs, error);