On Tue, 6 Feb 2001, Linus Torvalds wrote:
> > - if (bh->b_size % correct_size) {
> > + if (bh->b_size != correct_size) {
>
> Actually, I'd rather leave it in, but speed it up with the saner and
> faster if (bh->b_size & (correct_size-1)) {
Micro-optimization season?
--- linux-2.4.2-pre1/include/linux/swap.h Wed Feb 7 15:21:13 2001
+++ linux/include/linux/swap.h Wed Feb 7 17:21:25 2001
@@ -200,8 +200,8 @@
* with the pagemap_lru_lock held!
*/
#define DEBUG_ADD_PAGE \
- if (PageActive(page) || PageInactiveDirty(page) || \
- PageInactiveClean(page)) BUG();
+ if ((page)->flags & ((1<<PG_active)|(1<<PG_inactive_dirty)| \
+ (1<<PG_inactive_clean))) BUG();
#define ZERO_PAGE_BUG \
if (page_count(page) == 0) BUG();
-
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