[PATCH 3/3] binfmt_elf: Search an unmapped area with total_size but not map the whole image

In elf_map(), we can search an unmapped area for the whole image of dynamic loader with total_size, then map the first PT_LOAD segment with its own size. But not map the while image, then unmap the remainder at the end. And also update the code comment in elf_map() accordingly. Signed-off-by:

[PATCH 3/3] binfmt_elf: Search an unmapped area with total_size but not map the whole image

In elf_map(), we can search an unmapped area for the whole image of dynamic loader with total_size, then map the first PT_LOAD segment with its own size. But not map the while image, then unmap the remainder at the end. And also update the code comment in elf_map() accordingly. Signed-off-by: