Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\page-writeback.c Create Date:2022-07-28 14:09:41
Last Modify:2022-05-23 13:25:58 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:dirty_freerun_ceiling

Proto:static unsigned long dirty_freerun_ceiling(unsigned long thresh, unsigned long bg_thresh)

Type:unsigned long

Parameter:

TypeParameterName
unsigned longthresh
unsigned longbg_thresh
719  Return (thresh + bg_thresh) / 2
Caller
NameDescribe
wb_position_ratioDirty position control
wb_update_dirty_ratelimitMaintain wb->dirty_ratelimit, the base dirty throttle rate.* Normal wb tasks will be curbed at or below it in long term.* Obviously it should be around (write_bw / N) when there are N dd tasks.
balance_dirty_pagesalance_dirty_pages() must be called by processes which are generating dirty* data