Reporting per process page faults.

• sched.h : a new field (pagefaults_nr) has been added to struct mm_struct to keep a count of the number of page faults
• unistd.h : _NR_GET_PAGEFAULTS 198
• entry.S : sys_get_pagefaults /* entry 198 */
• my_foo.c : implements get_pagefaults( pid_t, ulong * ulong * )
• test.c : test program. Usage: test pid
• test2.c : another test program.

include/linux/sched.h
include/asm/unistd.h
arch/i386/kernel/entry.S
arch/i386/mm/fault.c
kernel/my_foo.c system call file
test.c
test2.c

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