Christoph Lameter <[EMAIL PROTECTED]> writes: > Do not use the page_table_lock in do_anonymous_page. This will significantly > increase the parallelism in the page fault handler in SMP systems. The patch > also modifies the definitions of _mm_counter functions so that rss and > anon_rss > become atomic.
I still think it's a bad idea to add arbitary process size limits like this: > > +#ifdef CONFIG_ATOMIC_TABLE_OPS > +/* > + * Atomic page table operations require that the counters are also > + * incremented atomically > +*/ > +#define set_mm_counter(mm, member, value) atomic_set(&(mm)->member, value) > +#define get_mm_counter(mm, member) ((unsigned > long)atomic_read(&(mm)->member)) > +#define update_mm_counter(mm, member, value) atomic_add(value, &(mm)->member) > +#define MM_COUNTER_T atomic_t Can you use atomic64_t on 64bit systems at least? -Andi - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
