[PATCH] kernel/crash_dump.c: add kerneldoc

/* Stores the physical address of elf header of crash image. */

unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;

/*

/**

 * copy_oldmem_page - copy one page from "oldmem"

 * @pfn: page frame number to be copied

 * @buf: target memory address for the copy; this can be in kernel address

 *	space or user address space (see @userbuf)

 * @csize: number of bytes to copy

 * @offset: offset in bytes into the page (based on pfn) to begin the copy

 * @userbuf: if set, @buf is in user address space, use copy_to_user(),

 *	otherwise @buf is in kernel address space, use memcpy().

 *

 * Copy a page from "oldmem". For this page, there is no pte mapped

 * in the current kernel. We stitch up a pte, similar to kmap_atomic.

 */