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From:   trondmy@kernel.org
To:     "J. Bruce Fields" <bfields@redhat.com>,
        Olga Kornievskaia <kolga@netapp.com>
Cc:     linux-nfs@vger.kernel.org
Subject: [PATCH 2/2] NFSv42: Don't force attribute revalidation of the copy offload source
Date:   Wed, 14 Apr 2021 10:31:38 -0400
Message-Id: <20210414143138.15192-2-trondmy@kernel.org>
In-Reply-To: <20210414143138.15192-1-trondmy@kernel.org>
References: <20210414143138.15192-1-trondmy@kernel.org>
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From: Trond Myklebust <trond.myklebust@hammerspace.com>

When a copy offload is performed, we do not expect the source file to
change other than perhaps to see the atime be updated.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
 fs/nfs/nfs42proc.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 3875120ef3ef..a24349512ffe 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -390,12 +390,7 @@ static ssize_t _nfs42_proc_copy(struct file *src,
 	}
 
 	nfs42_copy_dest_done(dst_inode, pos_dst, res->write_res.count);
-
-	spin_lock(&src_inode->i_lock);
-	nfs_set_cache_invalid(src_inode, NFS_INO_REVAL_PAGECACHE |
-						 NFS_INO_REVAL_FORCED |
-						 NFS_INO_INVALID_ATIME);
-	spin_unlock(&src_inode->i_lock);
+	nfs_invalidate_atime(src_inode);
 	status = res->write_res.count;
 out:
 	if (args->sync)
-- 
2.30.2