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36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
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From cd0fa86de6ca1d40c0a93d86d1c0f7846e8a9a10 Mon Sep 17 00:00:00 2001
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From: Laura Abbott <lauraa@codeaurora.org>
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Date: Fri, 3 Jan 2014 10:47:00 -0800
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Subject: fs: fuse: Add replacment for CMA pages into the LRU cache
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CMA pages are currently replaced in the FUSE file system since
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FUSE may hold on to CMA pages for a long time, preventing migration.
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The replacement page is added to the file cache but not the LRU
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cache. This may prevent the page from being properly aged and dropped,
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creating poor performance under tight memory condition. Fix this by
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adding the new page to the LRU cache after creation.
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Change-Id: Ib349abf1024d48386b835335f3fbacae040b6241
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CRs-Fixed: 586855
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Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
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---
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fs/fuse/file.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/fs/fuse/file.c b/fs/fuse/file.c
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index e231a7f..3411ed8 100644
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--- a/fs/fuse/file.c
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+++ b/fs/fuse/file.c
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@@ -822,6 +822,8 @@ static int fuse_readpages_fill(void *_data, struct page *page)
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lock_page(newpage);
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put_page(newpage);
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+ lru_cache_add_file(newpage);
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+
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/* finally release the old page and swap pointers */
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unlock_page(oldpage);
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page_cache_release(oldpage);
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--
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cgit v1.1
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