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 17:53:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Clean and dirty swap cache.* Dirty swap cache page is tricky to handle. The page could live both in page* cache and swap cache(ie. page is freshly swapped in). So it could be* referenced concurrently by 2 types of PTEs:* normal PTEs and swap PTEs

函数原型：static int me_swapcache_dirty(struct page *p, unsigned long pfn)

返回类型：int

参数：

类型参数名称
struct page *p
unsigned longpfn
743  ClearPageDirty(p)
745  ClearPageUptodate(p)
747  如果非XXX: It is possible that a page is isolated from LRU cache,* and then kept in swap cache or failed to remove from page cache.* The page count will stop it from being freed by unpoison.* Stress tests should be aware of this memory leak problem.则返回:MF_DELAYED
749  否则返回:MF_FAILED