aboutsummaryrefslogtreecommitdiffstats
path: root/mm/oom_kill.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/oom_kill.c')
-rw-r--r--mm/oom_kill.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 44b2da11bf43..f255eda693b0 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -37,6 +37,7 @@ static DEFINE_SPINLOCK(zone_scan_mutex);
37 * badness - calculate a numeric value for how bad this task has been 37 * badness - calculate a numeric value for how bad this task has been
38 * @p: task struct of which task we should calculate 38 * @p: task struct of which task we should calculate
39 * @uptime: current uptime in seconds 39 * @uptime: current uptime in seconds
40 * @mem: target memory controller
40 * 41 *
41 * The formula used is relatively simple and documented inline in the 42 * The formula used is relatively simple and documented inline in the
42 * function. The main rationale is that we want to select a good task 43 * function. The main rationale is that we want to select a good task
@@ -264,6 +265,9 @@ static struct task_struct *select_bad_process(unsigned long *ppoints,
264} 265}
265 266
266/** 267/**
268 * dump_tasks - dump current memory state of all system tasks
269 * @mem: target memory controller
270 *
267 * Dumps the current memory state of all system tasks, excluding kernel threads. 271 * Dumps the current memory state of all system tasks, excluding kernel threads.
268 * State information includes task's pid, uid, tgid, vm size, rss, cpu, oom_adj 272 * State information includes task's pid, uid, tgid, vm size, rss, cpu, oom_adj
269 * score, and name. 273 * score, and name.
@@ -298,7 +302,7 @@ static void dump_tasks(const struct mem_cgroup *mem)
298 } while_each_thread(g, p); 302 } while_each_thread(g, p);
299} 303}
300 304
301/** 305/*
302 * Send SIGKILL to the selected process irrespective of CAP_SYS_RAW_IO 306 * Send SIGKILL to the selected process irrespective of CAP_SYS_RAW_IO
303 * flag though it's unlikely that we select a process with CAP_SYS_RAW_IO 307 * flag though it's unlikely that we select a process with CAP_SYS_RAW_IO
304 * set. 308 * set.
@@ -504,6 +508,9 @@ void clear_zonelist_oom(struct zonelist *zonelist)
504 508
505/** 509/**
506 * out_of_memory - kill the "best" process when we run out of memory 510 * out_of_memory - kill the "best" process when we run out of memory
511 * @zonelist: zonelist pointer
512 * @gfp_mask: memory allocation flags
513 * @order: amount of memory being requested as a power of 2
507 * 514 *
508 * If we run out of memory, we have the choice between either 515 * If we run out of memory, we have the choice between either
509 * killing a random task (bad), letting the system crash (worse) 516 * killing a random task (bad), letting the system crash (worse)