函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\aperture_64.c Create Date:2022-07-27 09:52:16
Last Modify:2020-03-17 10:38:51 Copyright©Brick
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函数名称：gart_mem_pfn_is_ram

函数原型：static int gart_mem_pfn_is_ram(unsigned long pfn)

返回类型：int

参数：

类型参数名称
unsigned longpfn
74  返回:此条件成立可能性大(为编译器优化)((pfn < If the first kernel maps the aperture over e820 RAM, the kdump kernel will* use the same range because it will remain configured in the northbridge.* Trying to dump this area via /proc/vmcore may crash the machine, so exclude* it from vmcore.) || (pfn >= If the first kernel maps the aperture over e820 RAM, the kdump kernel will* use the same range because it will remain configured in the northbridge.* Trying to dump this area via /proc/vmcore may crash the machine, so exclude* it from vmcore. + If the first kernel maps the aperture over e820 RAM, the kdump kernel will* use the same range because it will remain configured in the northbridge.* Trying to dump this area via /proc/vmcore may crash the machine, so exclude* it from vmcore.))