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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/pcpubuf.c | |
| parent | 622ceaddb7649ca328832f50ba1400af778d75fa (diff) | |
| download | linux-rt-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/pcpubuf.c')
| -rw-r--r-- | fs/erofs/pcpubuf.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/erofs/pcpubuf.c b/fs/erofs/pcpubuf.c index 6c885575128a..a2efd833d1b6 100644 --- a/fs/erofs/pcpubuf.c +++ b/fs/erofs/pcpubuf.c @@ -49,7 +49,7 @@ int erofs_pcpubuf_growsize(unsigned int nrpages) { static DEFINE_MUTEX(pcb_resize_mutex); static unsigned int pcb_nrpages; - LIST_HEAD(pagepool); + struct page *pagepool = NULL; int delta, cpu, ret, i; mutex_lock(&pcb_resize_mutex); @@ -102,13 +102,13 @@ int erofs_pcpubuf_growsize(unsigned int nrpages) vunmap(old_ptr); free_pagearray: while (i) - list_add(&oldpages[--i]->lru, &pagepool); + erofs_pagepool_add(&pagepool, oldpages[--i]); kfree(oldpages); if (ret) break; } pcb_nrpages = nrpages; - put_pages_list(&pagepool); + erofs_release_pages(&pagepool); out: mutex_unlock(&pcb_resize_mutex); return ret; |