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Kernel: Convert Processor::in_irq() to static current_in_irq()

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This closes the race window between Processor::current() and a context
switch happening before in_irq().
This commit is contained in:
Andreas Kling 2021-08-22 12:21:31 +02:00
parent 3e3f760808
commit d60635cb9d
14 changed files with 37 additions and 39 deletions
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2
Kernel/Arch/x86/common/Interrupts.cpp
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@ -288,7 +288,7 @@ void page_fault_handler(TrapFrame* trap)
bool faulted_in_kernel = !(regs.cs & 3);
if (faulted_in_kernel && Processor::current().in_irq()) {
if (faulted_in_kernel && Processor::current_in_irq()) {
// If we're faulting in an IRQ handler, first check if we failed
// due to safe_memcpy, safe_strnlen, or safe_memset. If we did,
// gracefully continue immediately. Because we're in an IRQ handler