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Kernel: Avoid creating a temporary String("mmap") for every mmap() call

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This commit is contained in:
Andreas Kling 2019-09-22 19:47:00 +02:00
parent 804df54296
commit bba24b09f7
1 changed files with 1 additions and 3 deletions
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4
Kernel/Process.cpp
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@ -208,13 +208,11 @@ void* Process::sys$mmap(const Syscall::SC_mmap_params* params)
if ((u32)addr & ~PAGE_MASK) if ((u32)addr & ~PAGE_MASK)
return (void*)-EINVAL; return (void*)-EINVAL;
if (flags & MAP_ANONYMOUS) { if (flags & MAP_ANONYMOUS) {
auto* region = allocate_region(VirtualAddress((u32)addr), size, "mmap", prot, false); auto* region = allocate_region(VirtualAddress((u32)addr), size, name ? name : "mmap", prot, false);
if (!region) if (!region)
return (void*)-ENOMEM; return (void*)-ENOMEM;
if (flags & MAP_SHARED) if (flags & MAP_SHARED)
region->set_shared(true); region->set_shared(true);
if (name)
region->set_name(name);
return region->vaddr().as_ptr(); return region->vaddr().as_ptr();
} }
if (offset & ~PAGE_MASK) if (offset & ~PAGE_MASK)