[PATCH v2 10/16] hostfs: Tell the VFS that readpage was synchronous
From: Matthew Wilcox (Oracle)
Date: Fri Oct 09 2020 - 10:31:58 EST
The hostfs readpage implementation was already synchronous, so use
AOP_UPDATED_PAGE to avoid cycling the page lock.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Acked-by: Richard Weinberger <richard@xxxxxx>
---
fs/hostfs/hostfs_kern.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index c070c0d8e3e9..c49221c09c4b 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -455,6 +455,8 @@ static int hostfs_readpage(struct file *file, struct page *page)
out:
flush_dcache_page(page);
kunmap(page);
+ if (!ret)
+ return AOP_UPDATED_PAGE;
unlock_page(page);
return ret;
}
--
2.28.0