global_dirty

Name:global_dirty_limits - background-writeback and dirty-throttling thresholds*@pbackground: out parameter for bg_thresh*@pdirty: out parameter for thresh* Calculate bg_thresh and thresh for global_wb_domain. See* domain_dirty_limits() for details.

Proto:void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty)

Type:void

Parameter:

Type	Parameter	Name
unsigned long *	pbackground
unsigned long *	pdirty

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struct dirty_throttle_control gdtc = {GDTC_INIT_NO_WB}

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dirtyable = global_dirtyable_memory - number of globally dirtyable pages* Return: the global number of pages potentially available for dirty* page cache. This is the base value for the global dirty limits.

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domain_dirty_limits - calculate thresh and bg_thresh for a wb_domain*@dtc: dirty_throttle_control of interest* Calculate @dtc->thresh and ->bg_thresh considering* vm_dirty_{bytes|ratio} and dirty_background_{bytes|ratio}. The caller

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pbackground = dirty background threshold

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pdirty = dirty threshold

**Caller**
Name	Describe
writeback_set_ratelimit	If ratelimit_pages is too high then we can get into dirty-data overload* if a large number of processes all perform writes at the same time
vmstat_start

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