函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:mm\memory-failure.c Create Date:2022-07-27 17:53:05
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：When a unknown page type is encountered drain as many buffers as possible* in the hope to turn the page into a LRU or free page, which we can handle.

函数原型：void shake_page(struct page *p, int access)

返回类型：void

参数：

类型参数名称
struct page *p
intaccess
243  如果PageHuge() only returns true for hugetlbfs pages, but not for normal or* transparent huge pages. See the PageTransHuge() documentation for more* details.则返回
246  如果非PageSlab(p)则
247  lru_add_drain_all()
248  如果PageLRU(p)则返回
250  Spill all the per-cpu pages from all CPUs back into the buddy allocator.* When zone parameter is non-NULL, spill just the single zone's pages.* Note that this can be extremely slow as the draining happens in a workqueue.
251  如果PageLRU(p)或is_free_buddy_page(p)则返回
259  如果access则drop_slab_node(page_to_nid(p))
调用者
名称描述
hwpoison_user_mappingsDo all that is necessary to remove user space mappings. Unmap* the pages and send SIGBUS to the processes if the data was dirty.
memory_failurememory_failure - Handle memory failure of a page.*@pfn: Page Number of the corrupted page*@flags: fine tune action taken* This function is called by the low level machine check code* of an architecture when it detects hardware memory corruption* of a page
get_any_page
hwpoison_inject