Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-28 12:03:24
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:buffer_percent_write

Proto:static ssize_t buffer_percent_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos)

Type:ssize_t

Parameter:

TypeParameterName
struct file *filp
const char __user *ubuf
size_tcnt
loff_t *ppos
8332  tr = needed for tty driver, and maybe others
8336  ret = kstrtoul_from_user(ubuf, cnt, 10, & val)
8337  If ret Then Return ret
8340  If val > 100 Then Return -EINVAL
8343  If Not val Then val = 1
8346  buffer_percent = val
8348  ppos++
8350  Return cnt