函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\nommu.c Create Date:2022-07-27 16:04:18
Last Modify:2020-03-17 21:26:27 Copyright©Brick
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函数名称：SYSCALL_DEFINE5

函数原型：SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, unsigned long, new_addr)

返回类型：

参数：无

1640  lock for writing
1641  ret等于xpand (or shrink) an existing mapping, potentially moving it at the same* time (controlled by the MREMAP_MAYMOVE flag and available VM space)* under NOMMU conditions, we only permit changing a mapping's size, and only* as long as it stays within the
1642  lease a write lock
1643  返回:ret