Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\page_alloc.c Create Date:2022-07-28 15:03:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:Initialised pages do not have PageReserved set. This function is* called for each range allocated by the bootmem allocator and* marks the pages PageReserved. The remaining valid pages are later* sent to the buddy page allocator.

Proto:void __meminit reserve_bootmem_region(phys_addr_t start, phys_addr_t end)

Type:void

Parameter:

TypeParameterName
phys_addr_tstart
phys_addr_tend
1392  start_pfn = PFN_DOWN(start)
1393  end_pfn = PFN_UP(end)
1395  When start_pfn < end_pfn cycle
1396  If pfn_valid(start_pfn) Then
1397  page = pfn_to_page(start_pfn)
1399  init_reserved_page(start_pfn)
1402  Initialization list head
1409  __SetPageReserved(page)
Caller
NameDescribe
free_low_memory_core_early