current_gfp_context

函数名称：Applies per-task gfp context to the given allocation flags.* PF_MEMALLOC_NOIO implies GFP_NOIO* PF_MEMALLOC_NOFS implies GFP_NOFS* PF_MEMALLOC_NOCMA implies no allocation from CMA region.

函数原型：static inline gfp_t current_gfp_context(gfp_t flags)

返回类型：gfp_t

参数：

类型	参数	名称
gfp_t	flags

182

如果此条件成立可能性小(为编译器优化)(flags & (PF_MEMALLOC_NOIO | PF_MEMALLOC_NOFS | PF_MEMALLOC_NOCMA))则

188

如果flags按位与PF_MEMALLOC_NOIO则flags与等于DOC: Reclaim modifiers* Reclaim modifiers* ~~~~~~~~~~~~~~~~~* %__GFP_IO can start physical IO.* %__GFP_FS can call down to the low-level FS. Clearing the flag avoids the* allocator recursing into the filesystem which might already be holding* locks.按位或__GFP_FS的值的反

190

否则如果flags按位与PF_MEMALLOC_NOFS则flags与等于__GFP_FS的反

193

如果flags按位与PF_MEMALLOC_NOCMA则flags与等于ZONE_MOVABLE allowed 的反

197

返回:flags

**调用者**
名称	描述
try_to_free_pages
try_to_free_mem_cgroup_pages
__node_reclaim	Try to free up some pages from this node through reclaim.
__alloc_pages_nodemask	This is the 'heart' of the zoned buddy allocator.

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

函数逻辑报告