kernels/linux-2.4.0/mm/filemap.c
/*
 * Get an exclusive lock on the page, optimistically
 * assuming it's not locked..
 */
Get an exclusive lock on the page, optimistically
assuming it's not locked
Get an exclusive lock on the page optimistically assuming it ' s not locked
void lock_page(struct page *page)
{
	if (TryLockPage(page))
		__lock_page(page);
}
void lock_page ( struct page * page ) { if ( TryLockPage ( page ) ) __lock_page ( page ) ; }
Get an exclusive lock on the page, optimistically
 assuming it's not locked..
Get an exclusive lock on the page optimistically assuming it ' s not locked ..