populated_zone

函数名称：Returns true if a zone has memory

函数原型：static inline bool populated_zone(struct zone *zone)

返回类型：bool

参数：

类型	参数	名称
struct zone *	zone

893

返回:内存域中实际上可用的页数目

**调用者**
名称	描述
show_mem
enough_free_mem	gh_free_mem - Check if there is enough free memory for the image.
node_dirtyable_memory	de_dirtyable_memory - number of dirtyable pages in a node@pgdat: the node Return: the node's number of pages potentially available for dirty* page cache. This is the base value for the per-node dirty limits.
zero_zones_numa_counters	zero numa counters of all the populated zones
walk_zones_in_node	Walk zones in a node and print using a callback.* If @assert_populated is true, only use callback for zones that are populated.
is_zone_first_populated
zoneinfo_show_print
page_alloc_init_late
setup_per_cpu_pageset	创建每个CPU的高速缓存集合数组
zone_pcp_init
percpu_pagelist_fraction_sysctl_handler	percpu_pagelist_fraction - changes the pcp->high for each zone on each* cpu. It is the fraction of total pages in each zone that a hot per cpu* pagelist can have before it gets flushed back to buddy allocator.
madvise_inject_error	Error injection support for memory error handling.
init_zones_in_node

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码