UNMAP_KERNEL_RANGE_N(9)             Memory Management in Linux            UNMAP_KERNEL_RANGE_N(9)



NAME
       unmap_kernel_range_noflush - unmap kernel VM area

SYNOPSIS
       void unmap_kernel_range_noflush(unsigned long addr, unsigned long size);

ARGUMENTS
       addr
           start of the VM area to unmap

       size
           size of the VM area to unmap

DESCRIPTION
       Unmap PFN_UP(size) pages at addr. The VM area addr and size specify should have been
       allocated using get_vm_area and its friends.

NOTE
       This function does NOT do any cache flushing. The caller is responsible for calling
       flush_cache_vunmap on to-be-mapped areas before calling this function and
       flush_tlb_kernel_range after.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   UNMAP_KERNEL_RANGE_N(9)