函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\vmscan.c Create Date:2022-07-27 15:41:01
Last Modify:2022-05-23 13:41:30 Copyright©Brick
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函数名称：This misses isolated pages which are not accounted for to save counters.* As the data only determines if reclaim or compaction continues, it is* not expected that isolated pages will be a dominating factor.

函数原型：unsigned long zone_reclaimable_pages(struct zone *zone)

返回类型：unsigned long

参数：

类型参数名称
struct zone *zone
313  nr等于More accurate version that also considers the currently pending* deltas. For that we need to loop over all cpus to find the current* deltas. There is no synchronization so the result cannot be* exactly accurate either.加More accurate version that also considers the currently pending* deltas. For that we need to loop over all cpus to find the current* deltas. There is no synchronization so the result cannot be* exactly accurate either.
315  如果get_nr_swap_pages()大于0则nr加等于More accurate version that also considers the currently pending* deltas. For that we need to loop over all cpus to find the current* deltas. There is no synchronization so the result cannot be* exactly accurate either.加More accurate version that also considers the currently pending* deltas. For that we need to loop over all cpus to find the current* deltas. There is no synchronization so the result cannot be* exactly accurate either.
319  返回:nr
调用者
名称描述
allow_direct_reclaim
should_reclaim_retryChecks whether it makes sense to retry the reclaim to make a forward progress* for the given allocation request.* We give up when we either have tried MAX_RECLAIM_RETRIES in a row* without success, or when we couldn't even meet the watermark if we