Extract the code to translate VM error into errno, into an exported
function vm_mmap_to_errno(). It is useful for the drivers that implement mmap(2)-like functionality, to be able to return error codes consistent with mmap(2). Sponsored by: The FreeBSD Foundation No objections from: alc MFC after: 1 week
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=223914
@ -72,6 +72,7 @@ int vm_fault_wire(vm_map_t, vm_offset_t, vm_offset_t, boolean_t);
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int vm_forkproc(struct thread *, struct proc *, struct thread *, struct vmspace *, int);
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void vm_waitproc(struct proc *);
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int vm_mmap(vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int, objtype_t, void *, vm_ooffset_t);
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int vm_mmap_to_errno(int rv);
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void vm_set_page_size(void);
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void vm_sync_icache(vm_map_t, vm_offset_t, vm_size_t);
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struct vmspace *vmspace_alloc(vm_offset_t, vm_offset_t);
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@ -1535,6 +1535,13 @@ vm_mmap(vm_map_t map, vm_offset_t *addr, vm_size_t size, vm_prot_t prot,
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vm_map_wire(map, *addr, *addr + size,
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VM_MAP_WIRE_USER|VM_MAP_WIRE_NOHOLES);
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return (vm_mmap_to_errno(rv));
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}
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int
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vm_mmap_to_errno(int rv)
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{
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switch (rv) {
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case KERN_SUCCESS:
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return (0);
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