// SPDX-License-Identifier: GPL-2.0-only
/*
 *  linux/mm/oom_kill.c
 *
 *  Copyright (C)  1998,2000  Rik van Riel
 *	Thanks go out to Claus Fischer for some serious inspiration and
 *	for goading me into coding this file...
 *  Copyright (C)  2010  Google, Inc.
 *	Rewritten by David Rientjes
 *
 *  The routines in this file are used to kill a process when
 *  we're seriously out of memory. This gets called from __alloc_pages()
 *  in mm/page_alloc.c when we really run out of memory.
 *
 *  Since we won't call these routines often (on a well-configured
 *  machine) this file will double as a 'coding guide' and a signpost
 *  for newbie kernel hackers. It features several pointers to major
 *  kernel subsystems and hints as to where to find out what things do.
 */

/*
 * Official Linux v6.18: mm/oom_kill.c
 * https://github.com/torvalds/linux/blob/v6.18/mm/oom_kill.c#L447
 * Complete upstream scope, not an elided book-code reconstruction.
 * See GPL-2.0.txt. Not a standalone translation unit.
 */

static void dump_oom_victim(struct oom_control *oc, struct task_struct *victim)
{
	/* one line summary of the oom killer context. */
	pr_info("oom-kill:constraint=%s,nodemask=%*pbl",
			oom_constraint_text[oc->constraint],
			nodemask_pr_args(oc->nodemask));
	cpuset_print_current_mems_allowed();
	mem_cgroup_print_oom_context(oc->memcg, victim);
	pr_cont(",task=%s,pid=%d,uid=%d\n", victim->comm, victim->pid,
		from_kuid(&init_user_ns, task_uid(victim)));
}