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x86_64: lock task address space while performing a demand page-map

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max 🍓
2026-02-23 18:25:49 +00:00
parent fe107fbad3
commit 273557fa9f
1 changed files with 6 additions and 1 deletions
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7
arch/x86_64/pmap.c
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@@ -364,7 +364,12 @@ kern_status_t pmap_handle_fault(
struct task *task = current_task(); struct task *task = current_task();
struct vm_region *space = task->t_address_space; struct vm_region *space = task->t_address_space;
return vm_region_demand_map(space, fault_addr, flags); unsigned long lock_flags;
vm_region_lock_irqsave(space, &lock_flags);
kern_status_t status = vm_region_demand_map(space, fault_addr, flags);
vm_region_unlock_irqrestore(space, lock_flags);
return status;
} }
kern_status_t pmap_add( kern_status_t pmap_add(