nfs_file_fsync    257 fs/nfs/file.c  EXPORT_SYMBOL_GPL(nfs_file_fsync);
nfs_file_fsync    843 fs/nfs/file.c  	.fsync		= nfs_file_fsync,
nfs_file_fsync    365 fs/nfs/internal.h int nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync);
nfs_file_fsync    277 fs/nfs/nfs4file.c 	.fsync		= nfs_file_fsync,