NUMA-Q breakage 6/7 lack of bio splitting workaround

[William Lee Irwin III]

NUMA-Q's have qlogicisp adapters for their boot bays. Until the block
I/O issue is resolved, they can't boot. I've bugged you about this
before, but for completeness' sake, here it is.

Workaround (due to akpm) below.

Cheers,
Bill

===== fs/mpage.c 1.10 vs edited =====
--- 1.10/fs/mpage.c	Thu Jul  4 09:17:30 2002
+++ edited/fs/mpage.c	Fri Jul 12 01:03:03 2002
@@ -24,7 +24,7 @@
  * The largest-sized BIO which this code will assemble, in bytes.  Set this
  * to PAGE_CACHE_SIZE if your drivers are broken.
  */
-#define MPAGE_BIO_MAX_SIZE BIO_MAX_SIZE
+#define MPAGE_BIO_MAX_SIZE PAGE_CACHE_SIZE
 
 /*
  * I/O completion handler for multipage BIOs.