NFS: Do not report writeback errors in nfs_getattr()

[ Upstream commit d19e018 ]

The result of the writeback, whether it is an ENOSPC or an EIO, or
anything else, does not inhibit the NFS client from reporting the
correct file timestamps.

Fixes: 79566ef ("NFS: Getattr doesn't require data sync semantics")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

fs/nfs/inode.c

@@ -661,11 +661,8 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 
 	trace_nfs_getattr_enter(inode);
 	/* Flush out writes to the server in order to update c/mtime.  */
-	if (S_ISREG(inode->i_mode)) {
-		err = filemap_write_and_wait(inode->i_mapping);
-		if (err)
-			goto out;
-	}
+	if (S_ISREG(inode->i_mode))
+		filemap_write_and_wait(inode->i_mapping);
 
 	/*
 	 * We may force a getattr if the user cares about atime.
@@ -693,7 +690,7 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 		if (S_ISDIR(inode->i_mode))
 			stat->blksize = NFS_SERVER(inode)->dtsize;
 	}
-out:
+
 	trace_nfs_getattr_exit(inode, err);
 	return err;
 }