函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\mmap.c Create Date:2022-07-27 16:19:02
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：vm_unlock_mapping

函数原型：static void vm_unlock_mapping(struct address_space *mapping)

返回类型：void

参数：

类型参数名称
struct address_space *mapping
3590  如果st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from则
3595  i_mmap_unlock_write(mapping)
3596  如果非st_and_clear_bit - Clear a bit and return its old value*@nr: Bit to clear*@addr: Address to count from* This is an atomic fully-ordered operation (implied full memory barrier).则BUG()
调用者
名称描述
mm_drop_all_locksThe mmap_sem cannot be released by the caller until* mm_drop_all_locks() returns.