LU-73 RHEL6 support.

[fs/lustre-release.git] / lustre / kernel_patches / patches / blkdev_tunables-2.6-rhel6.patch

diff --git a/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel6.patch b/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel6.patch
index d62c5bc..b05b835 100644 (file)
--- a/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel6.patch
+++ b/lustre/kernel_patches/patches/blkdev_tunables-2.6-rhel6.patch
@@ -2,12 +2,26 @@ Index: b/include/linux/blkdev.h
 ===================================================================
 --- a/include/linux/blkdev.h
 +++ b/include/linux/blkdev.h
-@@ -1026,7 +1026,7 @@ extern int blk_verify_command(unsigned c
+@@ -1026,6 +1026,6 @@ extern int blk_verify_command(unsigned c
  enum blk_default_limits {
-       BLK_MAX_SEGMENTS        = 128,
+-      BLK_MAX_SEGMENTS        = 128,
++      BLK_MAX_SEGMENTS        = 256,
        BLK_SAFE_MAX_SECTORS    = 255,
 -      BLK_DEF_MAX_SECTORS     = 1024,
 +      BLK_DEF_MAX_SECTORS     = 2048,
        BLK_MAX_SEGMENT_SIZE    = 65536,
        BLK_SEG_BOUNDARY_MASK   = 0xFFFFFFFFUL,
  };
+Index: linux-2.6.32.x86_64/include/scsi/scsi.h
+===================================================================
+--- linux-2.6.32.x86_64.orig/include/scsi/scsi.h       2010-10-26 21:45:52.000000000 +0300
++++ linux-2.6.32.x86_64/include/scsi/scsi.h    2010-10-29 11:16:35.000000000 +0300
+@@ -19,7 +19,7 @@ struct scsi_cmnd;
+  * to SG_MAX_SINGLE_ALLOC to pack correctly at the highest order.  The
+  * minimum value is 32
+  */
+-#define SCSI_MAX_SG_SEGMENTS  128
++#define SCSI_MAX_SG_SEGMENTS  256
+ 
+ /*
+  * Like SCSI_MAX_SG_SEGMENTS, but for archs that have sg chaining. This limit