kernel/vm/vm_mapping.cpp

136     // TODO(teisenbe): deal with error mapping on arch_mmu_protect fail
138     // If we're changing the whole mapping, just make the change.
148         // Create a new mapping for the right half (has old perms)
150         fbl::RefPtr<VmMapping> mapping(fbl::AdoptRef(
162         mapping->ActivateLocked();
168         // Create a new mapping for the right half (has new perms)
171         fbl::RefPtr<VmMapping> mapping(fbl::AdoptRef(
183         mapping->ActivateLocked();
241     // If we're unmapping everything, destroy this mapping
291     // We're unmapping from the center, so we need to split the mapping
299     fbl::RefPtr<VmMapping> mapping(fbl::AdoptRef(
315     mapping->ActivateLocked();
330     // mapping list with the VMO lock held before dropping this state to DEAD. The
355     // compute the intersection of the passed in vmo range and our mapping
394     VmMappingCoalescer(VmMapping* mapping, vaddr_t base);
397     // Add a page to the mapping run.  If this fails, the VmMappingCoalescer is
434 VmMappingCoalescer::VmMappingCoalescer(VmMapping* mapping, vaddr_t base)
435     : mapping_(mapping), base_(base), count_(0), aborted_(false) {}
453             TRACEF("error %d mapping %zu pages starting at va %#" PRIxPTR "\n", ret, count_, base_);
502     // mapping it in
524         LTRACEF_LEVEL(2, "mapping pa %#" PRIxPTR " to va %#" PRIxPTR "\n", pa, va);
561     // The vDSO code mapping can never be unmapped, not even
690                 TRACEF("failed to modify permissions on existing mapping\n");
699             // assert that we're not accidentally mapping the zero page writable
705                 TRACEF("failed to remove old mapping before replacing\n");
721         LTRACEF("mapping pa %#" PRIxPTR " to va %#" PRIxPTR " is zero page %d\n",
724         // assert that we're not accidentally mapping the zero page writable
748 // function is for splitting one mapping object into several that will be backed