函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\swapfile.c Create Date:2022-07-27 16:46:55
Last Modify:2020-03-17 22:19:49 Copyright©Brick
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函数名称：cluster_list_del_first

函数原型：static unsigned int cluster_list_del_first(struct swap_cluster_list *list, struct swap_cluster_info *ci)

返回类型：unsigned int

参数：

类型参数名称
struct swap_cluster_list *list
struct swap_cluster_info *ci
428  idx等于cluster_next( & head)
429  如果cluster_next( & tail)恒等于idx则
430  cluster_set_null( & head)
431  cluster_set_null( & tail)
432  否则cluster_set_next_flag( & head, cluster_next( & ci[idx]), 0)
436  返回:idx
调用者
名称描述
swap_do_scheduled_discardDoing discard actually. After a cluster discard is finished, the cluster* will be added to free cluster list. caller should hold si->lock.
alloc_cluster