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| author | Gao Xiang <hsiangkao@linux.alibaba.com> | 2021-10-22 17:01:20 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2021-10-25 08:22:59 +0800 |
| commit | eaa9172ad988b3ef5c59a051c825706252d435e1 (patch) | |
| tree | 3a2ca3eeb88d11455d69c7583f4c76b3bf8ef0cb /fs/erofs/internal.h | |
| parent | 622ceaddb7649ca328832f50ba1400af778d75fa (diff) | |
| download | linux-next-eaa9172ad988b3ef5c59a051c825706252d435e1.tar.gz | |
erofs: get rid of ->lru usage
Currently, ->lru is a way to arrange non-LRU pages and has some
in-kernel users. In order to minimize noticable issues of page
reclaim and cache thrashing under high memory presure, limited
temporary pages were all chained with ->lru and can be reused
during the request. However, it seems that ->lru could be removed
when folio is landing.
Let's use page->private to chain temporary pages for now instead
and transform EROFS formally after the topic of the folio / file
page design is finalized.
Link: https://lore.kernel.org/r/20211022090120.14675-1-hsiangkao@linux.alibaba.com
Cc: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Kent Overstreet <kent.overstreet@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/internal.h')
| -rw-r--r-- | fs/erofs/internal.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index a6a53d22dfd6..3265688af7f9 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -499,7 +499,14 @@ void erofs_pcpubuf_init(void); void erofs_pcpubuf_exit(void); /* utils.c / zdata.c */ -struct page *erofs_allocpage(struct list_head *pool, gfp_t gfp); +struct page *erofs_allocpage(struct page **pagepool, gfp_t gfp); +static inline void erofs_pagepool_add(struct page **pagepool, + struct page *page) +{ + set_page_private(page, (unsigned long)*pagepool); + *pagepool = page; +} +void erofs_release_pages(struct page **pagepool); #ifdef CONFIG_EROFS_FS_ZIP int erofs_workgroup_put(struct erofs_workgroup *grp); |