函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\vmalloc.c Create Date:2022-07-27 16:28:48
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：purge_vmap_area_lazy

函数原型：static void purge_vmap_area_lazy(void)

返回类型：void

参数：无

1350  mutex_lock( & Serialize vmap purging. There is no actual criticial section protected* by this look, but we want to avoid concurrent calls for performance* reasons and to make the pcpu_get_vm_areas more deterministic.)
1351  r per-CPU blocks
1352  Purges all lazily-freed vmap areas.
1353  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
调用者
名称描述
alloc_vmap_areaAllocate a region of KVA of the specified size and alignment, within the* vstart and vend.