linux-kernel - [PATCH 08/13] fuse: Tell the VFS that readpage was synchronous

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Message-Id: <20200917151050.5363-9-willy@infradead.org>
Date:   Thu, 17 Sep 2020 16:10:45 +0100
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     linux-fsdevel@...r.kernel.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-mm@...ck.org, v9fs-developer@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, linux-afs@...ts.infradead.org,
        ceph-devel@...r.kernel.org, linux-cifs@...r.kernel.org,
        ecryptfs@...r.kernel.org, linux-um@...ts.infradead.org,
        linux-mtd@...ts.infradead.org, Richard Weinberger <richard@....at>
Subject: [PATCH 08/13] fuse: Tell the VFS that readpage was synchronous

The fuse readpage implementation was already synchronous, so use
AOP_UPDATED_PAGE to avoid cycling the page lock.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 fs/fuse/file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 6611ef3269a8..7aa5626bc582 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -850,6 +850,8 @@ static int fuse_readpage(struct file *file, struct page *page)
 
 	err = fuse_do_readpage(file, page);
 	fuse_invalidate_atime(inode);
+	if (!err)
+		return AOP_UPDATED_PAGE;
  out:
 	unlock_page(page);
 	return err;
-- 
2.28.0