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 17:54:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：soft_offline_free_page

函数原型：static int soft_offline_free_page(struct page *page)

返回类型：int

参数：

类型参数名称
struct page *page
1847  rc等于Dissolve a given free hugepage into free buddy pages. This function does* nothing for in-use hugepages and non-hugepages.* This function returns values like below:* -EBUSY: failed to dissolved free hugepages or the hugepage is in-use
1849  如果非rc则
1850  如果Set PG_hwpoison flag if a given page is confirmed to be a free page. This* test is performed under the zone lock to prevent a race against page* allocation.则num_poisoned_pages_inc()
1852  否则rc等于负EBUSY
1855  返回:rc
调用者
名称描述
soft_offline_pagesoft_offline_page - Soft offline a page.*@pfn: pfn to soft-offline*@flags: flags. Same as memory_failure().* Returns 0 on success, otherwise negated errno.* Soft offline a page, by migration or invalidation,* without killing anything