oom_badness

Name:m_badness - heuristic function to determine which candidate task to kill*@p: task struct of which task we should calculate*@totalpages: total present RAM allowed for page allocation* The heuristic for determining which task to kill is made to be as simple

Proto:unsigned long oom_badness(struct task_struct *p, unsigned long totalpages)

Type:unsigned long

Parameter:

Type	Parameter	Name
struct task_struct *	p
unsigned long	totalpages

203

If rn true if the task is not adequate as candidate victim task. Then Return 0

206

p = The process p may have detached its own ->mm while exiting or through* use_mm(), but one or more of its subthreads may still have a valid* pointer. Return p, or any of its subthreads with a valid ->mm, with* task_lock() held.

207

If Not p Then Return 0

215

adj = oom_score_adj

216

If adj == /proc//oom_score_adj set to OOM_SCORE_ADJ_MIN disables oom killing for* pid. || st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from || in_vfork(p) Then

219

220

Return 0

227

points = get_mm_rss(mm) + per-process(per-mm_struct) statistics. + mm_pgtables_bytes(mm) / PAGE_SIZE

229

232

adj *= totalpages / 1000

233

239

Return If points > 0 Then points Else 1

**Caller**
Name	Describe
oom_evaluate_task

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion