linux-kernel - [PATCH 5.2 075/124] NFS: remove set but not used variable mapping

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Date:   Fri, 20 Sep 2019 00:02:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hulk Robot <hulkci@...wei.com>,
        YueHaibing <yuehaibing@...wei.com>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 075/124] NFS: remove set but not used variable mapping

From: YueHaibing <yuehaibing@...wei.com>

[ Upstream commit 99300a85260c2b7febd57082a617d1062532067e ]

Fixes gcc '-Wunused-but-set-variable' warning:

fs/nfs/write.c: In function nfs_page_async_flush:
fs/nfs/write.c:609:24: warning: variable mapping set but not used [-Wunused-but-set-variable]

It is not use since commit aefb623c422e ("NFS: Fix
writepage(s) error handling to not report errors twice")

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Signed-off-by: Trond Myklebust <trond.myklebust@...merspace.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/nfs/write.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 0d6d7beb85053..ee6932c9819e0 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -606,7 +606,6 @@ static void nfs_write_error(struct nfs_page *req, int error)
 static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
 				struct page *page)
 {
-	struct address_space *mapping;
 	struct nfs_page *req;
 	int ret = 0;
 
@@ -621,7 +620,6 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio,
 	WARN_ON_ONCE(test_bit(PG_CLEAN, &req->wb_flags));
 
 	/* If there is a fatal error that covers this write, just exit */
-	mapping = page_file_mapping(page);
 	ret = pgio->pg_error;
 	if (nfs_error_is_fatal_on_server(ret))
 		goto out_launder;
-- 
2.20.1