blkdev_tunables-2.6-suse.patch

非常经典的一个分布式系统

Index: linux-2.6.5-SLES9_SP1_BRANCH_2004111114454891_lustre.1.4.0-phik/include/scsi/scsi_host.h
===================================================================
--- linux-2.6.5-SLES9_SP1_BRANCH_2004111114454891_lustre.1.4.0-phik.orig/include/scsi/scsi_host.h	2005-01-07 04:23:12.344880136 -0800
+++ linux-2.6.5-SLES9_SP1_BRANCH_2004111114454891_lustre.1.4.0-phik/include/scsi/scsi_host.h	2005-01-07 04:23:33.338688592 -0800
@@ -24,7 +24,7 @@
  *	 used in one scatter-gather request.
  */
 #define SG_NONE 0
-#define SG_ALL 0xff
+#define SG_ALL 256
 
 
 #define DISABLE_CLUSTERING 0
Index: linux-2.6.5-SLES9_SP1_BRANCH_2004111114454891_lustre.1.4.0-phik/include/linux/blkdev.h
===================================================================
--- linux-2.6.5-SLES9_SP1_BRANCH_2004111114454891_lustre.1.4.0-phik.orig/include/linux/blkdev.h	2004-11-11 07:28:28.000000000 -0800
+++ linux-2.6.5-SLES9_SP1_BRANCH_2004111114454891_lustre.1.4.0-phik/include/linux/blkdev.h	2005-01-07 04:24:33.819494112 -0800
@@ -647,8 +647,8 @@
 extern void blk_rq_prep_restart(struct request *);
 extern int blkdev_issue_flush(struct block_device *, sector_t *);
 
-#define MAX_PHYS_SEGMENTS 128
-#define MAX_HW_SEGMENTS 128
+#define MAX_PHYS_SEGMENTS 256
+#define MAX_HW_SEGMENTS 256
 #define MAX_SECTORS 255
 
 #define MAX_SEGMENT_SIZE	65536