proc_sched_autogroup_set_nice

Name:proc_sched_autogroup_set_nice

Proto:int proc_sched_autogroup_set_nice(struct task_struct *p, int nice)

Type:int

Parameter:

Type	Parameter	Name
struct task_struct *	p
int	nice

210

next = Have the 32 bit jiffies value wrap 5 minutes after boot* so jiffies wrap bugs show up earlier.

215

If nice < MIN_NICE || nice > MAX_NICE Then Return -EINVAL

218

err = security_task_setnice(current process, nice)

219

If err Then Return err

222

If nice < 0 && Not an_nice - check if a task can reduce its nice value*@p: task*@nice: nice value Then Return -EPERM

226

If Not Check operation authority && time_before(jiffies, next) Then Return -EAGAIN

229

next = HZ / 10 + jiffies

230

ag = autogroup_task_get(p)

232

idx = array_index_nospec - sanitize an array index after a bounds check* For a code sequence like:* if (index < size) {* index = array_index_nospec(index, size);* val = array[index];* }* (nice + 20, 40)

233

shares = scale_load(Nice levels are multiplicative, with a gentle 10% change for every* nice level changed[idx])

235

lock for writing

236

err = sched_group_set_shares(tg, shares)

237

If Not err Then nice = nice

239

lease a write lock

241

autogroup_kref_put(ag)

243

Return err

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